Get Driving and parking -> Driving and driving safety systems Guide for Mercedes B Class SUV Third Generation (2018-2026)

▌Emergency braking

Press and hold handle 1.

As long as the vehicle is in motion, the

Release parking brake message is displayed

and the red ! indicator lamp ashes.

When the vehicle has been braked to a stand-

still, the electric parking brake is applied. The

red ! indicator lamp lights up in the driv-

er's display.

Information on collision detection on a parked

vehicle

If a collision is detected on the locked vehicle

when towing protection is switched on, and the

collision detection is switched on, when the vehi-

cle is switched on, you will receive a message in

the multimedia system.

You will receive information about the following

points:

The area of the vehicle that may have been

damaged.

The force of the impact.

The following situation can lead to inadvertent

activation:

Forexample, the parked vehicle is moved to a

two-storey garage.

Deactivate tow-away protection to prevent

accidental activation. If you deactivate tow-

away protection, collision detection will also

be deactivated.

You can permanently deactivate collision

detection via the multimedia system

(/ page 309).

System limits

Detection may be restricted in the following situa-

tions:

the vehicle is damaged without impact,

forexample, if an outside mirror is torn o or

the paint is damaged by a key

an impact occurs at low speed

the electric parking brake is not applied

You are responsible for your vehicle. Convince

yourself that your vehicle is free of damage

and roadworthy.

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Setting collision detection on a parked vehicle

Multimedia system:

Settings

Vehicle

Open/close

Vehicle protection

Activate or deactivate the function via Colli-

sion notification

A maximum of three incidents can be regis-

tered. Up to 15 photos are taken for every

incident. In the event of another incident, the

photos of the rst incident will be overwritten

if they have not been deleted already.

Activating or deactivating the collision photos

function

Note possible legal restrictions in some countries

regarding automatic recording of the vehicle sur-

roundings.

Activate or deactivate Collision photos.

Transferring the collision photos with the

Mercedes me App

Select Upload collision photos.

Select Upload automatically.

Scan the generated QR code on the media

display with the Mercedes me App.

The encrypted collision photos will then be

uploaded to Mercedes me.

Any device that can scan QR codes can be

used to view the collision photos in the

Mercedes me App.

Copying the collision photos to a USB ash drive

Connect a USB ash drive (/ page 532).

Select Manage collision photos.

Select Copy (USB).

All collision photos are copied to the USB

ash drive.

To ensure secure operation, only use with

FAT32 or exFAT formatted USB storage devi-

ces.

Deleting collision photos

Select Manage collision photos.

Select Delete.

All collision photos will be deleted.

Notes on parking up the vehicle

If you leave the vehicle parked up for longer than

six weeks, it may suer damage through disuse.

The 12 V battery may also be impaired or dam-

aged by heavy discharging.

Do not disconnect the 12 V battery even if the

vehicle is le idle for a lengthy period.

Further information can be obtained at a

qualied specialist workshop.

Standby mode (extension of the starter battery's

period out of use)

▌Standby mode function

This function is not available for all models.

If standby mode is activated, energy loss will be

minimised during extended periods of non-opera-

tion.

Standby mode is characterised by the following:

The starter battery is preserved.

The maximum non-operational time appears

on the driver's display.

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The connection to online services is interrup-

ted.

The ATA (anti-the alarm system) is not availa-

ble.

The interior protection and tow-away protec-

tion functions are not available.

The function for detecting collisions on a

parked vehicle is not available.

If the following conditions are fullled, standby

mode can be activated or deactivated using the

multimedia system:

The vehicle is switched on.

The vehicle has not been started.

Exceeding the vehicle's displayed non-operational

time may cause inconvenience; i.e. it cannot be

guaranteed that the starter battery will reliably

start the vehicle.

Charge the starter battery in the following situa-

tions:

If the vehicle's non-operational time needs to

be extended.

If the starter battery charge level is insucient

for standby mode.

Standby mode is automatically deactivated

when the vehicle is switched on.

▌Activating/deactivating standby mode (parking

up the vehicle)

Requirements:

The power supply is switched on.

The vehicle is not switched on.

Multimedia system:

Settings

Vehicle

Other functions

Activate or deactivate Standby mode.

Driving and driving safety systems

Driving systems and your responsibility

Your vehicle is equipped with driving systems

which assist you in driving, parking and manoeu-

vring the vehicle. The driving systems are only

aids. They are not a substitute for you paying

attention to your surroundings and do not relieve

you of your responsibility pertaining to road trac

law. The driver is always responsible for maintain-

ing a safe distance to the vehicle in front, for vehi-

cle speed, for braking in good time and for staying

in lane. Pay attention to the trac conditions at

all times and intervene when necessary. Be aware

of the limitations regarding the safe use of these

systems.

Driving systems can neither reduce the risk of

accident if you fail to adapt your driving style nor

override the laws of physics. They cannot always

take into account road, weather or trac condi-

tions.

Some driving systems can regulate or limit the

speed to a previously set value. Draw atten-

tion to the stored speed when changing driv-

ers.

Information on vehicle sensors and cameras

Some driving and driving safety systems use cam-

eras as well as radar or ultrasonic sensors to

monitor the area in front of, behind or next to the

vehicle.

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Multifunction camera

Cameras in the outside mirrors

Front radar

Front camera

Corner radars

Ultrasonic sensors

Reversing camera

WARNING Risk of accident due to restric-

ted detection performance of vehicle sen-

sors and cameras

If the area around vehicle sensors or cameras

is covered, damaged or dirty, certain driving

and safety systems cannot function correctly.

There is a risk of an accident.

Keep the area around vehicle sensors or

cameras clear of any obstructions and

clean.

Have damage to the bumper, radiator

grille or stone chipping in the area of the

front and rear windows repaired at a

qualied specialist workshop.

Particularly, keep the areas around the sensors

and cameras free of dirt, ice or slush

(/ page 558). The sensors and cameras must

not be covered and the detection ranges around

them must be kept free. Do not attach additional

licence plate brackets, advertisements, stickers,

foils or foils to protect against stone chippings in

the detection range of the sensors and cameras.

Make sure there are no overhanging loads pro-

truding into the detection range.

If there is damage to a bumper or the radiator

grille, or aer an impact, have the function of the

sensors checked at a qualied specialist work-

shop. Have damage or stone chipping in the area

of the cameras on the front and rear windows

repaired at a qualied specialist workshop.

The reversing camera can extend and retract

automatically for the purpose of calibration,

even though there is no camera image in the

display.

Overview of driving systems and driving safety

systems

ABS (/ page 312)

BAS (/ page 313)

ESP

(/ page 313)

ESP

Crosswind Assist (/ page 314)

ESP

trailer stabilisation (/ page 314)

EBD (/ page 315)

STEER CONTROL (/ page 315)

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HOLD function (/ page 315)

Hill Start Assist (/ page 317)

Start-o assist (/ page 317)

Adaptive Brake Lights (/ page 317)

ATTENTION ASSIST (/ page 318)

Cruise control (/ page 319)

Limiter (/ page 320)

Speed Limit Assist (country-dependent)

(/ page 339)

Trac Sign Assist (/ page 343)

Trac light view (/ page 347)

Suspension with adaptive damping adjustment

(/ page 352)

Driving Assistance Package

The following functions are part of the Driving

Assistance Package. Certain functions are

only available in some countries. Some func-

tions are also available without the Driving

Assistance Package, albeit with restricted

functionality.

Active Distance Assist DISTRONIC

(/ page 323)

Active Speed Limit Assist (/ page 329)

Route-based speed adaptation (/ page 329)

Active Brake Assist (/ page 335)

Active Steering Assist (/ page 331)

Active Emergency Stop Assist (/ page 333)

Blind Spot Assist with exit warning

(/ page 348)

Active Lane Keeping Assist (/ page 350)

Parking Package

The availability of individual functions is coun-

try- and equipment-dependent.

Reversing camera (/ page 352)

360° Camera (/ page 356)

Parking Assist PARKTRONIC (/ page 360)

Active Parking Assist (/ page 364)

Trailer Manoeuvering Assist (/ page 372)

Function of ABS

The Anti-lock Brake System (ABS) regulates the

brake pressure in critical driving situations:

During braking, for instance, at maximum full-

stop braking or if there is insucient tyre trac-

tion, the wheels are prevented from locking.

Vehicle steerability while braking is ensured.

If ABS intervenes when braking, you will feel a

pulsing in the brake pedal. The pulsating brake

pedal can be an indication of hazardous road con-

ditions and can serve as a reminder to take extra

care while driving.

System limits

ABS is active from speeds of approximately

5 km/h.

ABS may be impaired or may not function if a

malfunction has occurred and the yellow !

ABS warning lamp lights up continuously aer

the vehicle is started.

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Function of BAS

WARNING Risk of an accident caused by a

malfunction in BAS (Brake Assist System)

If BAS is malfunctioning, the braking distance

in an emergency braking situation is

increased.

Depress the brake pedal with full force in

emergency braking situations. ABS pre-

vents the wheels from locking.

The Brake Assist System (BAS) supports your

emergency braking situation with additional brake

force.

If you depress the brake pedal quickly, BAS is

activated:

BAS automatically boosts the brake pressure.

BAS can shorten the braking distance.

ABS prevents the wheels from locking.

The brakes will function as usual once you release

the brake pedal. BAS is deactivated.

Function of ESP

WARNING Risk of skidding if ESP

deactivated

If you deactivate ESP

, ESP

cannot carry out

vehicle stabilisation.

ESP

should only be deactivated in the

following situations.

The Electronic Stability Program (ESP

) can moni-

tor and improve driving stability and traction in

the following situations within physical limits:

When pulling away on wet or slippery carriage-

ways.

When braking.

If the vehicle deviates from the direction desired

by the driver, ESP

can stabilise the vehicle by

intervening in the following ways:

One or more wheels are braked.

The engine output is adapted according to the

situation.

When ESP

is deactivated, the å warning

lamp lights up continuously:

Driving stability will no longer be improved.

The drive wheels could spin.

ETS/4ETS traction control is still active.

When ESP

is deactivated, you are still assis-

ted by ESP

when braking.

When the ÷ warning lamp ashes, one or sev-

eral wheels has reached its grip limit:

Adapt your driving style to suit the current

road and weather conditions.

Do not deactivate ESP

Only depress the accelerator pedal as far as is

necessary when pulling away.

Deactivate ESP

in the following situations to

improve traction:

When using snow chains.

In deep snow.

On sand or gravel.

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Spinning the wheels results in a cutting

action, which enhances traction.

If the ÷ warning lamp lights up continuously,

ESP

is not available due to a malfunction.

Observe the following information:

warning and indicator lamps (/ page 821)

Display messages (/ page 740)

ETS/4ETS

ETS/4ETS traction control (Electronic Traction

System) is part of ESP

and makes it possible to

pull away and accelerate on a slippery carriage-

way.

ETS/4ETS can improve the vehicle's traction by

intervening in the following ways:

The drive wheels are braked individually if they

spin.

More drive torque is transferred to the wheel

or wheels with traction.

Inuence of drive programs on ESP

The drive programs enable ESP

to adapt to dif-

ferent weather and road conditions as well as the

driver's preferred driving style. Depending on the

selected drive program, the appropriate

ESP(/ page 264)

mode will be activated.

Function of ESP

Crosswind Assist

ESP

Crosswind Assist detects sudden gusts of

side wind and helps the driver to keep the vehicle

in the lane:

ESP

Crosswind Assist is active at vehicle

speeds between approx. 80 km/h and

200 km/h when driving straight ahead or cor-

nering slightly.

The vehicle is stabilised by means of individual

brake application on one side.

Function of ESP

trailer stabilisation

WARNING Risk of accident in poor road

and weather conditions

In poor road and weather conditions, the

trailer stabilisation cannot prevent lurching of

the vehicle/trailer combination. Trailers with a

high centre of gravity may tip over before

ESP

detects this.

Always adapt your driving style to suit

the current road and weather conditions.

When driving with a trailer, ESP

can stabilise

your vehicle if the trailer begins to swerve from

side to side:

ESP

trailer stabilisation is active above

speeds of 65 km/h.

Slight swerving is reduced by means of a tar-

geted, individual brake application on one

side.

In the event of severe swerving, the operating

energy output is also reduced and all wheels

are braked.

ESP

trailer stabilisation may be impaired or may

not function if:

The trailer is not connected correctly or is not

detected properly by the vehicle.

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Activating or deactivating ESP

(Electronic Stabil-

ity Program)

Multimedia system:

ESP

can only be activated/deactivated using

quick access when at least one other function

is available in quick access. ESP

can other-

wise be found in the

Assistance menu.

Select ESP.

Select On or Off.

ESP

is deactivated if the å ESP

OFF warn-

ing lamp lights up continuously in the driver's dis-

play.

Observe any information on warning lamps and

display messages which may be shown in the driv-

er's display.

Function of EBD

Electronic Brakeforce Distribution (EBD) is charac-

terised by the following:

Monitoring and regulating the brake pressure

on the rear wheels.

Improved driving stability when braking, espe-

cially on bends.

Function of STEER CONTROL

STEER CONTROL assists you by transmitting a

noticeable steering force to the steering wheel in

the direction required for vehicle stabilisation.

This steering recommendation is given in the fol-

lowing situations:

both right wheels or both le wheels are on a

wet or slippery road surface when you brake

the vehicle starts to skid

System limits

STEER CONTROL may be impaired or may not

function in the following situations:

ESP

is deactivated.

ESP

is malfunctioning.

The steering is malfunctioning.

If ESP

is malfunctioning, you will be assisted fur-

ther by the power steering.

HOLD function

▌HOLD function

The HOLD function holds the vehicle at a stand-

still without requiring you to depress the brake

pedal, e.g. while waiting in trac.

The HOLD function is only an aid. The responsibil-

ity for the vehicle safely standing still remains with

the driver.

System limits

The HOLD function is only intended to provide

assistance when driving and is not a sucient

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means of safeguarding the vehicle against rolling

away when stationary.

The incline must not be greater than 30%.

▌Activating/deactivating the HOLD function

WARNING Risk of an accident due to the

HOLD function being active when you

leave the vehicle

If the vehicle is only braked with the HOLD

function it could, in the following situations,

roll away:

If there is a malfunction in the system or in

the power supply.

If the HOLD function is deactivated by

depressing the accelerator pedal or brake

pedal, e.g. by a vehicle occupant.

Always secure the vehicle against rolling

away before you leave it.

Requirements

The vehicle is stationary.

The driver's door is closed or the seat belt on

the driver's side is fastened.

The vehicle has been started or has been

automatically switched o by the ECO start/

stop function.

The electric parking brake is released.

Active Distance Assist DISTRONIC is deactiva-

ted.

The transmission is in position h, k or i.

Activating the HOLD function

Depress the brake pedal, and aer a short

time quickly depress further until the ë

display appears in the driver's display.

Release the brake pedal.

Deactivating the HOLD function

Depress the accelerator pedal to pull away.

Depress the brake pedal until the ë display

disappears from the driver's display.

The HOLD function is deactivated in the following

situations:

Active Distance Assist DISTRONIC is activa-

ted.

The transmission is shied to position j.

The vehicle is secured with the electric park-

ing brake.

In the following situations, the vehicle is held by

transmission position j and/or by the electric

parking brake:

The seat belt is unfastened and the driver's

door is opened.

The vehicle is switched o.

There is a system malfunction.

The power supply is insucient.

In addition, the

Brake immediately message may

appear in the driver's display and a horn tone may

sound at regular intervals.

Immediately depress the brake pedal rmly

until the warning message disappears.

The HOLD function is deactivated.

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Additionally secure the vehicle against rolling

away.

Function of Hill Start Assist

WARNING Risk of accident and injury due

to the vehicle rolling away

Aer a short time, Hill Start Assist no longer

holds the vehicle.

Swily move your foot from the brake

pedal to the accelerator pedal. Do not

leave the vehicle when it is being held by

Hill Start Assist.

Hill Start Assist holds the vehicle for a short time

when pulling away on a hill under the following

conditions:

The transmission is in position h or k.

The electric parking brake is released.

This gives you enough time to move your foot

from the brake pedal to the accelerator pedal and

depress it before the vehicle begins to roll away.

Function of Adaptive Brake Lights

Adaptive Brake Lights warn following trac in an

emergency braking situation with the following

actions:

ashing the brake lamps

activating the hazard warning lights

(/ page 48)

If the vehicle is braked sharply from speeds above

50 km/h, the brake lamps ash rapidly. This pro-

vides trac travelling behind you with an even

more noticeable warning.

Start-o assist

▌Function of the start-o assist

The start-o assist enables optimal vehicle accel-

eration from a standstill. For this, a suitably high-

grip road surface is required, the tyres and vehicle

must also be in good condition.

Do not activate the start-o assist on public

roads.

Be sure to observe the safety notes and informa-

tion on ESP

(/ page 313).

▌Activating the start-o assist

WARNING Risk of skidding and having an

accident from wheels spinning

When you use start-o assist, individual

wheels could spin and you could lose control

of the vehicle.

If ESP

is deactivated, there is a risk of skid-

ding and accident!

Make sure that no persons or obstacles

are in the close vicinity of your vehicle.

Deactivating ESP

(/ page 315).

Move the steering wheel to the straight-ahead

position.

Depress the brake pedal rmly with your le

foot and keep it depressed.

Engage the h drive position (/ page 270).

Select the sportiest available drive program

B or C(/ page 264).

Rapidly depress the accelerator pedal fully.

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Take your foot o the brake, but keep the

accelerator pedal depressed.

The vehicle pulls away at maximum accelera-

tion.

Switch on ESP

once the acceleration proce-

dure is complete. ESP

will otherwise not be

able to stabilise the vehicle if the vehicle

starts to skid or a wheel starts to spin.

Cancelling the start-o assist

Remove your foot from the accelerator pedal.

Reactivate the ESP

ATTENTION ASSIST

▌Function of ATTENTION ASSIST

ATTENTION ASSIST assists you on long, monoto-

nous journeys, e.g. on motorways and trunk

roads. If indicators of fatigue or increasing lapses

in concentration on the driver's part are detected,

the system suggests taking a break.

ATTENTION ASSIST is only an aid. It cannot

always detect fatigue or lapses in concentration in

time. The system is not a substitute for a well-res-

ted and attentive driver. On long journeys, take

regular breaks in good time that allow for ade-

quate recovery.

You can choose between two settings:

Standard: normal system sensitivity.

Sensitive: higher system sensitivity. The driver

was warned earlier, and the attention level

detected by ATTENTION ASSIST has adapted

accordingly.

If drowsiness or increasing lapses in concentra-

tion are detected, the

ATTENTION ASSIST: Take

a break!

warning appears on the driver's display.

You can acknowledge the message and take a

break where necessary. If you do not take a break

and ATTENTION ASSIST continues to detect

increasing lapses in concentration, you will be

warned again aer a minimum of 15 minutes.

The following information is displayed in the driv-

er's display:

The length of the journey since the last break

the attention level determined by ATTENTION

ASSIST

The more segments

1 of the circle displayed,

the higher the detected attention level. Fewer seg-

ments

1 are displayed in the circle as the atten-

tion level decreases.

If the ATTENTION ASSIST is unable to calculate

the attention level and cannot issue a warning,

the

System suspended message appears.

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If the driver display shows a warning, a service

area search is oered in the MBUX multimedia

system. You can select a rest area and start navi-

gation to this rest area.

When you restart the vehicle, ATTENTION ASSIST

is automatically switched on. The last selected

sensitivity level remains stored.

System limits

ATTENTION ASSIST is active in the 60 km/h to

200 km/h speed range.

If the system is unavailable due to a fault, the

ATTENTION ASSIST Û warning light continu-

ously illuminates the driver display.

Particularly in the following situations, ATTENTION

ASSIST only functions in a restricted manner and

warnings may be delayed or not occur:

If you have been driving for less than approx-

imately 30 minutes.

If the road condition is poor (uneven road sur-

face or potholes).

If there is a strong side wind.

If you adopt a sporty driving style (high corner-

ing speeds or high acceleration rates).

If the Steering Assist function of Active Dis-

tance Assist DISTRONIC is active.

If the clock is set to the incorrect time.

If you change lanes and vary your speed fre-

quently in active driving situations.

Also, observe any information regarding display

messages that can be displayed in the driver's

display.

The ATTENTION ASSIST drowsiness or alertness

assessment is reset and restarted when continu-

ing the journey in the following situations:

You switch o the vehicle.

If you unfasten your seat belt and open the

driver's door (e.g. to change drivers or take a

break).

▌Setting ATTENTION ASSIST

Multimedia system:

Settings

Assistance

ATTENTION ASSIST

Setting the sensitivity

Select Z next to ATTENTION ASSIST.

Select Standard or Sensitive.

Cruise control and limiter

▌Function of cruise control

Cruise control regulates the speed to the value

selected by the driver.

Forexample, the stored speed is not deleted if you

accelerate to overtake. If you remove your foot

from the accelerator pedal aer overtaking, cruise

control will resume speed regulation back to the

stored speed.

You can store any speed above 20 km/h up to the

maximum design speed or up to the set winter

tyre limit.

Observe the notes on driving systems and your

responsibility; you may otherwise fail to recognise

dangers (/ page 310).

Displays in the driver's display

Grey: cruise control is selected but not yet

active or temporarily passive.

Green: cruise control is active.

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A stored speed appears under the h display

and is indicated in the speedometer.

System limits

Cruise control may be unable to maintain the

stored speed on uphill gradients. The stored

speed is resumed when the gradient evens out.

Change into a lower gear in good time on long and

steep downhill gradients. Take particular note of

this when driving a laden vehicle. Doing so will

make use of the engine's braking eect. This

relieves the load on the brake system and pre-

vents the brakes from overheating and wearing

too quickly.

Do not use cruise control in the following situa-

tions:

In trac situations which require frequent

changes of speed, e.g. in heavy trac, on

winding roads

, and slippery roads. Accelerating can cause

the drive wheels to lose traction, and the vehi-

cle could skid.

when visibility is poor

▌Function of the limiter

The limiter restricts the speed of the vehicle. To

reduce the speed to the set speed, the limiter

applies the brakes automatically.

You can limit the speed as follows:

Variable: for short-term limitation of the driv-

ing speed, e.g. in built-up areas

Permanent: for a longer-term speed restric-

tion, e.g. in winter tyre mode

You can store any speed above 20 km/h up to the

maximum design speed or up to the set winter

tyre limit. You can also perform settings while the

vehicle is stationary if the vehicle has been star-

ted.

Observe the notes on driving systems and your

responsibility; you may otherwise fail to recognise

dangers (/ page 310).

Displays in the driver's display

Grey: variable limiter is selected but not yet

activated.

Flashing grey: variable limiter is temporarily

passive.

Green: variable limiter is activated.

A stored speed appears under the M display

and is indicated in the speedometer.

If you depress the accelerator pedal beyond the

pressure point (kickdown), the variable limiter

switches to passive mode. The message M

passive appears in the driver's display, and the

indicator M ashes.

The variable limiter is reactivated in the following

situations:

If the vehicle speed drops below the stored

speed.

If the stored speed is called up.

If you store a new speed.

▌Operating cruise control or the variable limiter

WARNING Risk of accident due to stored

speed

If you call up the stored speed and this is

lower than your current speed, the vehicle

decelerates.

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Take into account the trac situation

before calling up the stored speed.

Requirements

Cruise control

Cruise control is selected.

ESP

must be activated, but not intervening.

The vehicle speed is at least 20 km/h.

The transmission is in position h.

Variable limiter

The variable limiter is selected.

Steering wheel control panel for cruise control and

variable limiter

Adopts the stored/detected speed

Deactivates cruise control/the vari-

able limiter

1®¯

Control panel to increase/decrease

speed

Selects cruise control

Selects the variable limiter

Operating cruise control and the variable limiter:

Press the corresponding button with only one

nger or swipe on the control panel.

Switching between cruise control and the varia-

ble limiter

To select cruise control: pressh.

To select the variable limiter: pressM.

Vehicles with Active Distance Assist

DISTRONIC: the variable limiter is selected by

a dierent button (/ page 325).

Activating cruise control or the variable limiter

Press ® or ¯ on the control panel 1.

The current travel speed is stored and main-

tained by the vehicle's cruise control, or is

restricted by the variable limiter.

Press J.

The last stored speed is called up and main-

tained by the vehicle's cruise control, or is

restricted by the variable limiter.

If the last stored speed has previously been

deleted, the current vehicle speed is stored.

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When you switch o the vehicle, the last

speed stored is deleted.

When you activate cruise control or Active

Distance Assist DISTRONIC, the last speed

stored for the variable limiter is deleted.

Increasing/decreasing the stored speed

To increase the stored speed: swipe upwards

from the bottom of control panel 1.

The stored speed is increased by 1 km/h.

To decrease the stored speed: swipe down-

wards from the top of control panel 1.

The stored speed is decreased by 1 km/h.

Briey press ® or ¯ on the control

panel

The stored speed is increased or decreased to

the next increment of ten (e.g. to 50 km/h or

60 km/h).

Press and hold ® or ¯ on the control

panel

The stored speed is increased or decreased to

the next increment of ten and aerwards by

increments of 10 km/h.

Accelerate the vehicle to the desired speed.

Press ® on the control panel 1.

When the variable limiter is switched to pas-

sive mode, you cannot increase or decrease

its stored speed in increments of 1 km/h.

Adopting a detected speed

If cruise control/variable limiter is activated and

Trac Sign Assist has detected a speed restric-

tion sign with a maximum permissible speed and

this is displayed in the driver's display:

Press J.

The maximum permissible speed shown by the

trac sign is stored and the vehicle maintains

or does not exceed this speed.

Deactivating cruise control or the variable limiter

Press ±.

If you brake, deactivate ESP

or if ESP

inter-

venes, cruise control is deactivated. The varia-

ble limiter is not deactivated.

When you switch o the vehicle, the last

speed stored is deleted.

When you activate cruise control or Active

Distance Assist DISTRONIC, the last speed

stored for the variable limiter is deleted.

▌Information on the permanent limiter

If the vehicle should never exceed a specic

speed (e.g. for driving in winter tyre mode), you

can set this speed with the permanent limiter.

You do this by limiting the speed between

160 km/h and 240 km/h in the multimedia sys-

tem (/ page 43).

Shortly before the set speed is reached, it

appears on the driver's display. When you conrm

the message, display messages no longer appear

until you switch o the vehicle. The speed will

only be displayed again once the vehicle has been

restarted or if the set speed is changed.

The permanent limiter does not switch to passive

mode even during kickdown and the driven speed

remains below the set speed.

322

Driving and parking

F247 0072 02

▌Setting the speed limit for winter tyres

Multimedia system:

Settings

Vehicle

Driving

Winter tyre limit

Activate or deactivate Winter tyre limit.

Setting a speed

Select Winter tyre limit.

Select a speed.

Active Distance Assist DISTRONIC

▌Function of Active Distance Assist DISTRONIC

Active Distance Assist DISTRONIC maintains the

set speed on free-owing roads. If vehicles are

detected ahead, the set distance is maintained, if

necessary until the vehicle comes to a standstill.

The vehicle accelerates or brakes depending on

the distance to the vehicle in front and the set

speed.

The speed and distance to the vehicle in front are

set and saved using the steering wheel.

Available speed range: 20 km/h - 160 km/h

Other features of Active Distance Assist

DISTRONIC:

Adjusts the driving style depending on the

selected drive program (energy-saving, com-

fortable or dynamic) (/ page 262)

Initiates acceleration to the stored speed if the

turn signal indicator is switched on to change

to the overtaking lane

Vehicles with Driving Assistance Package:

Reacts to stationary vehicles detected in

urban speed ranges (except bicycles and

motorcycles)

Takes one-sided overtaking restrictions

into account on motorways or multi-lane

roads with separate carriageways (coun-

try-dependent)

If the vehicle is braked to a standstill by Active

Distance Assist DISTRONIC on multi-lane separa-

ted roadways, it can automatically follow the vehi-

cle in front as it moves o again, depending on

the equipment. If a critical situation is detected

when driving o, a visual and acoustic warning is

issued indicating that the driver must now take

control of the vehicle. The vehicle is not acceler-

ated any further.

Observe the notes on driving systems and your

responsibility; you may otherwise fail to recognise

potential dangers (/ page 310).

Display in the driver display in the Assistance menu

Vehicle in front

Distance indicator

Set specied distance

The vehicle detected in front 1 is highlighted in

green. It may also be in the lane to the right of

your vehicle in situations where it is not permitted

Driving and parking

323

F247 0072 02

to overtake on the le,for example, on UK motor-

ways.

Permanent status display

Grey: Active Distance Assist DISTRONIC

selected but not yet active

Green speedometer, grey vehicle: Active

Distance Assist DISTRONIC active, speed

set

Green: Active Distance Assist DISTRONIC

active and vehicle detected

The stored speed is shown under the permanent

status display and highlighted on the speedome-

ter. Active Distance Assist DISTRONIC's status

display is greyed out when in passive mode.

If the speed of the vehicle in front or the speed

adjustment is less than the stored speed due to

the route event ahead, the segments in the

speedometer light up.

If you increase or decrease the specied distance

3, the h display appears briey.

On motorways or high-speed major roads, the

green vehicle symbol ç is displayed cycli-

cally when the vehicle is ready to pull away.

The system is switched to passive mode if you

depress the accelerator pedal beyond the

Active Distance Assist DISTRONIC setting.

The following message appears briey on the

driver display ç suspended .

System limits

The system may be impaired or inoperative in the

following instances, forexample:

In snow, rain, fog, heavy spray, if there is glare,

in direct sunlight or in greatly varying light

conditions.

The windscreen in the camera's area is dirty,

misted, damaged or covered.

If the radar sensors are dirty or covered.

In multi-storey car parks or on roads with

steep uphill or downhill gradients.

If there are narrow vehicles in front, such as

bicycles or motorcycles.

In addition, on slippery roads, braking or acceler-

ating can cause one or several wheels to lose

traction, and the vehicle could then begin skid-

ding.

Do not use Active Distance Assist DISTRONIC in

these situations.

WARNING Risk of accident from accelera-

tion or braking by Active Distance Assist

DISTRONIC

Active Distance Assist DISTRONIC may accel-

erate or brake in the following cases, for

example:

If the vehicle pulls away using Active Dis-

tance Assist DISTRONIC.

If the stored speed is called up and is con-

siderably faster or slower than the cur-

rently driven speed.

If Active Distance Assist DISTRONIC no

longer detects a vehicle in front or does

not react to relevant objects.

Always carefully observe the trac con-

ditions and be ready to brake at all

times.

Take into account the trac situation

before calling up the stored speed.

324

Driving and parking

F247 0072 02

WARNING Risk of accident due to insu-

cient deceleration by Active Distance

Assist DISTRONIC

Active Distance Assist DISTRONIC brakes your

vehicle with up to 50% of the possible deceler-

ation. If this deceleration is not sucient,

Active Distance Assist DISTRONIC alerts you

with a visual and acoustic warning.

Adjust your speed and maintain a suita-

ble distance from the vehicle in front.

Brake the vehicle yourself and/or take

evasive action.

WARNING Risk of accident if detection

function of Active Distance Assist

DISTRONIC is impaired

Active Distance Assist DISTRONIC does not

react or has a limited reaction:

when driving on a dierent lane or when

changing lanes

to pedestrians, animals, bicycles or sta-

tionary vehicles, or unexpected obstacles

to complex trac conditions

to oncoming vehicles and crossing trac

As a result, Active Distance Assist DISTRONIC

may neither give warnings nor intervene in

such situations.

Always observe the trac conditions

carefully and react accordingly.

You can watch an animation on this topic via the

following link:

▌Operating Active Distance Assist DISTRONIC

and the variable limiter

WARNING Risk of accident if detection

function of Active Distance Assist

DISTRONIC is impaired

Active Distance Assist DISTRONIC does not

react or has a limited reaction:

when driving on a dierent lane or when

changing lanes

to pedestrians, animals, bicycles or sta-

tionary vehicles, or unexpected obstacles

to complex trac conditions

to oncoming vehicles and crossing trac

As a result, Active Distance Assist DISTRONIC

may neither give warnings nor intervene in

such situations.

Always observe the trac conditions

carefully and react accordingly.

Driving and parking

325

F247 0072 02

WARNING Risk of accident from accelera-

tion or braking by Active Distance Assist

DISTRONIC

Active Distance Assist DISTRONIC may accel-

erate or brake in the following cases, for

example:

If the vehicle pulls away using Active Dis-

tance Assist DISTRONIC.

If the stored speed is called up and is con-

siderably faster or slower than the cur-

rently driven speed.

If Active Distance Assist DISTRONIC no

longer detects a vehicle in front or does

not react to relevant objects.

Always carefully observe the trac con-

ditions and be ready to brake at all

times.

Take into account the trac situation

before calling up the stored speed.

WARNING Risk of accident due to insu-

cient deceleration by Active Distance

Assist DISTRONIC

Active Distance Assist DISTRONIC brakes your

vehicle with up to 50% of the possible deceler-

ation. If this deceleration is not sucient,

Active Distance Assist DISTRONIC alerts you

with a visual and acoustic warning.

Adjust your speed and maintain a suita-

ble distance from the vehicle in front.

Brake the vehicle yourself and/or take

evasive action.

WARNING Risk of accident due to adjust-

ment of speed by the Active Speed Limit

Assistant

The speed adopted by the Active Speed Limit

Assistant may be too high or incorrect in indi-

vidual cases:

For speed limits below 20 km/h

In wet or foggy conditions

Ensure that the speed driven always

complies with the trac regulations.

Adjust the speed driven to the current

trac and weather conditions.

Requirements

Active Distance Assist DISTRONIC:

The electric parking brake is released.

ESP

is activated and is not intervening.

The transmission is in position h.

All the doors are closed.

Check of the radar sensor system has been

successfully completed.

Variable limiter:

The variable limiter is selected.

326

Driving and parking

F247 0072 02

Adopts the stored/detected speed

Deactivates Active Distance Assist

DISTRONIC/the variable limiter

1®¯

Control panel to increase/decrease

speed

Increases/decreases the specied

distance

Switches between the variable lim-

iter and Active Distance Assist

DISTRONIC

To operate Active Distance Assist DISTRONIC

or the variable limiter: press the respective

button with only one nger or swipe on the

control panel.

Switches between the variable limiter and Active

Distance Assist DISTRONIC

Press I.

Activating the variable limiter or Active Distance

Assist DISTRONIC

To activate without a stored speed: press

®, ¯ or J. Active Distance Assist

DISTRONIC: remove your foot from the accel-

erator pedal.

The current driving speed is stored and main-

tained by the vehicle using Active Distance

Assist DISTRONIC or limited by the variable

limiter.

To activate with a stored speed: press J.

Active Distance Assist DISTRONIC: remove

your foot from the accelerator pedal.

The last stored speed is recalled and held by

the vehicle using Active Distance Assist

DISTRONIC or limited by the variable limiter.

If the stored speed has been deleted, the cur-

rent vehicle speed is stored.

When you switch o the vehicle, the stored

speed is deleted. When you activate Active

Distance Assist DISTRONIC, the last speed

stored for the variable limiter is deleted.

Increasing or reducing the speed

To increase the stored speed: swipe upwards

from the bottom of control panel

The stored speed is increased by 1 km/h.

To decrease the stored speed: swipe down-

wards from the top of control panel 1.

The stored speed is decreased by 1 km/h.

Driving and parking

327

F247 0072 02

Briey press ® on the upper section or

¯ on the lower section of control panel

The stored speed is increased or reduced by

10 km/h.

Press and hold ® on the upper section or

¯ on the lower section of control panel

The stored speed is increased or reduced in

increments of 10 km/h.

Accelerate the vehicle to the desired speed.

Press ® on the upper section of control

panel

Adopting the speed limit shown on the driver's

display

Activate Active Distance Assist DISTRONIC or

the variable limiter: press ®, ¯ or

Accept the displayed speed limit: press J.

The speed limit displayed on the driver's dis-

play is adopted as the stored speed. The vehi-

cle adapts its speed to that of the vehicle in

front, but only up to the stored speed, or limits

its speed accordingly.

A speed limit shown on the driver display is

only adopted while driving, not when station-

ary.

Pulling away with Active Distance Assist

DISTRONIC

Activate Active Distance Assist DISTRONIC

and remove your foot from the brake pedal.

Press J.

Depress the accelerator pedal briey and

rmly.

The functions of Active Distance Assist

DISTRONIC remain active.

Reducing or increasing the specied distance

from the vehicle in front

Press K.

The h display appears. The specied dis-

tance is reduced by one level.

If the lowest level is already selected, the

selection jumps to the highest level.

Deactivating Active Distance Assist DISTRONIC or

the variable limiter

WARNING Risk of an accident due to

Active Distance Assist DISTRONIC being

active when you leave the driver's seat

If you leave the driver's seat while the vehicle

is being braked by Active Distance Assist

DISTRONIC only, the vehicle can roll away.

Always deactivate Active Distance Assist

DISTRONIC and secure the vehicle to

prevent it from rolling away before you

leave the driver's seat.

Press ±.

328

Driving and parking

F247 0072 02

If you brake, deactivate ESP

or if ESP

inter-

venes, Active Distance Assist DISTRONIC is

deactivated. The variable limiter is not deacti-

vated.

▌Function of Active Speed Limit Assist

If a changed speed limit is detected and the auto-

matic adoption of speed limits is switched on, this

is automatically adopted as the stored speed

(/ page 331). Speed limits below 20 km/h are

not accepted.

Adjustment of travel speed is initiated no later

than when the vehicle is level with the trac sign.

For signs indicating entry into an urban zone, the

speed is adapted according to that permitted

within the built-up area. The speed restriction indi-

cator on the driver display is always refreshed

when the vehicle is level with the trac sign.

If you are driving on German motorways with no

speed limit, the system uses the speed stored for

a stretch of road with no speed limit as the set

speed. If you do not alter the stored speed on a

stretch of road with no speed limit, the recom-

mended speed of 130 km/h is adopted.

If Active Distance Assist DISTRONIC has been put

into passive mode by pressing the accelerator

pedal, only speed limits which are higher than the

set speed are adopted.

The maximum permissible speed does not con-

sider the road condition and current weather and

trac conditions. Adjust your speed accordingly

when necessary.

Observe the notes on driving systems and your

responsibility; you may otherwise fail to recognise

potential dangers (/ page 310).

System limits

The system limits of Trac Sign Assist apply to

the detection of trac signs (/ page 343).

Speed limits below 20 km/h are not automatically

adopted by the system as the stored speed. Tem-

porary speed restrictions ( a specic time

or due to weather conditions) cannot be unequiv-

ocally detected by the system.

Adjust the speed in these situations.

WARNING Risk of accident due to adjust-

ment of speed by the Active Speed Limit

Assistant

The speed adopted by the Active Speed Limit

Assistant may be too high or incorrect in indi-

vidual cases:

For speed limits below 20 km/h

In wet or foggy conditions

Ensure that the speed driven always

complies with the trac regulations.

Adjust the speed driven to the current

trac and weather conditions.

You can watch an animation on this topic via the

following link:

▌Function of route-based speed adaptation

When Active Distance Assist DISTRONIC is activa-

ted, the vehicle speed will be adapted to the route

events ahead. Depending on the drive program

selected, the vehicle negotiates a route event

ahead in an energy-saving, comfortable or

dynamic manner. When the route event has been

passed, the vehicle accelerates again to the

Driving and parking

329

F247 0072 02

stored speed. The set distance to the vehicle in

front, vehicles detected ahead and speed restric-

tions ahead are taken into account.

Route-based speed adaptation can be activated in

the multimedia system (/ page 331).

The following route events are taken into account:

Bends

Roundabouts

T-junctions

Turns and exits

Also, the speed is reduced if the turn signal indi-

cator is switched on and one of the following sit-

uations is detected:

Turning o at junctions

Driving on slowing-down lanes

Driving on lanes adjacent to slowing-down

lanes

The driver is responsible for choosing the right

speed and observing other road users. This

applies in particular to junctions, roundabouts and

trac lights, as route-based speed adaptation

does not brake the vehicle to a standstill.

When route guidance is active, the rst speed

adjustment is carried out automatically. If the turn

signal indicator is switched on, the selected route

is conrmed and further speed adaptation is acti-

vated.

Speed adaptation is cancelled in the following

cases:

If the turn signal indicator is switched o

before the route event and it is presumed that

the route event is not deemed relevant by the

driver

If the driver depresses the accelerator or

brake pedal during the process.

System limits

Route-based speed adaptation does not take right

of way regulations into account. The driver is

responsible for complying with road trac regula-

tions and driving at a suitable speed.

In dicult conditions, the speed selection made

by the system may not always be suitable. This

applies to the following situations, for example:

The road's course is not clearly visible

Road narrowing

Varying maximum permissible speeds in indi-

vidual lanes, for example, at toll stations

Wet road surfaces, snow or ice

If transport equipment, for example a trailer or

bicycle rack, is attached to the trailer hitch

and the electrical connection has been cor-

rectly established

In these situations the driver must intervene

accordingly.

WARNING Risk of accident in spite of

route-based speed adaptation

Route-based speed adaptation can malfunc-

tion or be temporarily unavailable in the fol-

lowing situations:

330

Driving and parking

F247 0072 02

If the driver does not follow the calculated

route

If map data is not up-to-date or available

In the event of roadworks

In bad weather or road conditions

If the accelerator pedal is depressed

In the event of electronically displayed

speed limitations

Adapt the speed to the trac situation.

▌Setting Active Distance Assist DISTRONIC driv-

ing styles

Requirements

Active Distance Assist DISTRONIC is activa-

ted.

Multimedia system:

Settings

Assistance

Driving

Active Distance Assist

Setting Speed Adjustment

Select Adopt speed limit or Route-based

speed adaptation

When these functions are active, the vehicle

speed is adjusted depending on the route

events ahead.

When one of the following systems is active,

the detected speed can be manually adopted

as the speed limit:

Active Distance Assist DISTRONIC

Variable limiter

Further information on speed adjust-

ment(/ page 329).

Active Steering Assist

▌Function of Active Steering Assist

Active Steering Assist is only available up to a

speed of 160 km/h. The system helps you to stay

in the centre of the lane by means of moderate

steering interventions. Depending on the speed

driven, Active Steering Assist uses the vehicles

ahead and lane markings as a reference.

Depending on the country, in the lower speed

range Active Steering Assist can use the sur-

rounding trac as a reference. Active Steer-

ing Assist can also assist when driving outside

the centre of the lane, forexample, to form an

emergency corridor.

If the detection of lane markings and vehicles

ahead is impaired, Active Steering Assist switches

to passive mode. The system provides no support

in this case.

Status display of Active Steering Assist

Grey: activated and passive

Green: activated and active

Red: system limits detected

White, red hands: "hands on the steering

wheel" prompt

Driving and parking

331

F247 0072 02

During the transition from active to passive

mode, the Ø symbol is shown as enlarged

and ashing. Once the system is in passive

mode, the Ø symbol is shown as grey in

the driver display.

Depending on the selected vehicle settings,

Active Steering Assist may be unavailable.

Steering and touch detection

The driver is required to keep their hands on the

steering wheel at all times and be able to inter-

vene at any time to correct the course of the vehi-

cle and keep it in lane. The driver must expect a

change from active to passive mode or vice versa

at any time.

If the system detects that the driver has not

steered the vehicle for a considerable period of

time or has removed their hands from the steering

wheel, display 1 appears. If the driver still does

not steer the vehicle, a warning tone sounds in

addition to the visual warning message.

If the driver does not react to this warning for a

considerable period, an emergency stop is initi-

ated (/ page 333).

The warning is not issued or stops as soon as the

system detects the driver touching or steering the

steering wheel.

The touch detection may be limited or inoperative

if there is no direct contact between the hand and

the steering wheel, e.g. when wearing gloves or if

there is a steering wheel cover on the steering

wheel.

If Active Steering Assist detects that a system

limit has been reached, a visual warning is issued

and a warning tone sounds.

Observe the notes on driving systems and your

responsibility; you may otherwise fail to recognise

potential dangers (/ page 310).

System limits

Active Steering Assist has a limited steering tor-

que for lateral guidance. In some cases, the steer-

ing intervention is not sucient to keep the vehi-

cle in the lane or to drive through exits.

The system may be impaired or inoperative in the

following instances:

There is poor visibility, e.g. due to snow, rain,

fog, heavy spray, greatly varying light condi-

tions or strong shadows on the carriageway.

There is glare, e.g. from oncoming trac,

direct sunlight or reections.

Insucient road illumination.

The windscreen is dirty, misted up, damaged

or covered in the vicinity of the camera, e.g.

by a sticker.

There are no lane markings in a given lane, or

the markings are not easily discernible or

change quickly, forexample, in a construction

area or junctions.

The lane markings are worn away, dark or cov-

ered up, e.g. by dirt or snow.

332

Driving and parking

F247 0072 02

If the distance to the vehicle in front is too

short and the lane markings cannot therefore

be detected.

The roadway is narrow and winding.

There are obstacles on the lane or projecting

out into the lane, suchas object markers.

If transport equipment, forexample a trailer or

bicycle rack, is attached to the trailer hitch

and the electrical connection has been cor-

rectly established.

The system does not provide assistance in the fol-

lowing conditions:

On tight bends and when turning.

When crossing junctions.

At roundabouts or toll stations.

When the tyre pressure is too low.

WARNING Risk of accident if Active Steer-

ing Assist unexpectedly stops functioning

If the system limits of Active Steering Assist

are reached there is no guarantee that the

system will remain active or will keep the vehi-

cle in lane.

Always keep your hands on the steering

wheel and observe the trac carefully.

Always steer the vehicle paying attention

to trac conditions.

WARNING Risk of accident if Active Steer-

ing Assist unexpectedly intervenes

The detection of lane markings and objects

may malfunction and cause unexpected steer-

ing interventions.

Steer according to trac conditions.

You can watch an animation on this topic via the

following link:

▌Activating/deactivating Active Steering Assist

Requirements

ESP

is activated, but is not intervening.

Active Distance Assist DISTRONIC is activa-

ted.

Multimedia system:

Settings

Assistance

Driving

Activate or deactivate Active Steering Assist.

Function of Active Emergency Stop Assist

The following function is only available in com-

bination with the Driving Assistance Package.

Active Emergency Stop Assist monitors the steer-

ing wheel, accelerator, and brake pedals. If the

system detects a lack of driver activity and the

vehicle is in danger of leaving the lane, a warning

can be issued and an emergency stop initiated.

If Active Steering Assist is switched o, the sys-

tem is available from a speed of approx. 60 km/h.

If the system detects that the vehicle is in danger

of leaving the lane, a warning can be issued and

an emergency stop initiated.

The driver has not touched the steering wheel

for a certain while, or no steering movement is

detected for a lengthy period (depending on

the vehicle equipment).

Driving and parking

333

F247 0072 02

Neither the accelerator nor the brake pedal is

depressed.

If Active Steering Assist is switched on and

active, the system only monitors the steering

wheel. If the driver has not touched the steer-

ing wheel for a certain while, a warning may

be issued despite pedal actuation.

Observe also the instructions on the touch

detection of Active Steering Assist

(/ page 331).

Active Emergency Stop Assist issues the following

warnings in order:

Display message

1 appears in the driver dis-

play.

In addition to display

1, a warning tone

sounds.

The

Beginning emergency stop message

appears in the driver display, a continuous

warning tone sounds and the vehicle will no

longer accelerate.

The vehicle speed is reduced in increments

until the vehicle comes to a standstill. Sharp

brake impulses are also eected.

When automatic braking is initiated, Active Dis-

tance Assist DISTRONIC is deactivated. Depend-

ing on the respective country, the hazard warning

light system is switched on.

When the vehicle has come to a standstill:

the vehicle is secured with the electric parking

brake.

the vehicle is unlocked.

if possible, an emergency call is made to the

Mercedes-Benz emergency call centre.

Before the

Beginning emergency stop message is

displayed, you can cancel Active Emergency Stop

Assist by turning the steering wheel.

Once the

Beginning emergency stop message

has been displayed, you can cancel Active Emer-

gency Stop Assist as follows:

Accelerating or braking: the emergency stop is

cancelled, but the warning message, warning

tone and electric power steering remain active

Steering: electric power steering is cancelled,

the warning message and warning tone remain

active, and the vehicle continues to be braked

Accelerating or braking: the emergency stop

and electric power steering are cancelled. The

warning message and warning tone are can-

celled.

334

Driving and parking

F247 0072 02

Active Emergency Stop Assist can initiate an

emergency stop a maximum of three times

within a driving cycle. Aer that, Active Steer-

ing Assist and Active Emergency Stop Assist

are disabled until the vehicle has been restar-

ted.

System limits

For the detection of vehicles and other obstacles,

observe the system limits of the following func-

tions:

Active Distance Assist DISTRONIC

(/ page 323)

Active Steering Assist (/ page 331)

Active Lane Keeping Assist (/ page 350)

Active Brake Assist (/ page 335)

Active Emergency Stop Assist is inactive in the fol-

lowing case:

Active Lane Keeping Assist and Active Steer-

ing Assist are switched o.

Active Brake Assist

▌Function of Active Brake Assist

Active Brake Assist consists of the following func-

tions:

Distance warning function

Collision warning

Autonomous braking function

Situation-related brake force boosting

Vehicles Driving Assistance Package: Evasive

Steering Assist

Active Brake Assist can help you to minimise the

risk of a collision with vehicles, cyclists or pedes-

trians, or to reduce the eects of such a collision.

If Active Brake Assist has detected a risk of colli-

sion, a warning tone sounds and the Active Brake

Assist lamp L lights up.

Display in the driver's display in the Assistance menu

In the

Assistance menu, an insucient distance

to the vehicle in front

1 is displayed in red. If you

further reduce the distance, the vehicle in front is

also highlighted in red. When the system detects a

risk of collision, red radar waves

2 appear ahead

of the vehicle.

Vehicles with PRE-SAFE

: depending on the

country, an additional haptic warning occurs

in the form of slight, repeated tensioning of

the seat belt.

If you do not react to the warning, autonomous

braking can be initiated in critical situations.

Driving and parking

335

F247 0072 02

In particularly critical situations, Active Brake

Assist can also initiate autonomous braking

directly. In this case, the warning tone and dis-

tance warning lamp L are simultaneous with

the braking action.

If you apply the brakes yourself in a critical situa-

tion or apply the brakes during autonomous brak-

ing, situation-related braking assistance is given.

The brake pressure increases up to emergency

braking level if necessary.

If autonomous braking, situation-related braking

assistance or evasive action has occurred, pop-up

1 appears in the driver's display. It automatically

disappears aer a short time.

If the autonomous braking function or the situa-

tion-related braking assistance is triggered, addi-

tional preventive measures by PRE-SAFE

occu-

pant protection may also be initiated.

WARNING Risk of an accident caused by

limited detection performance of Active

Brake Assist

Active Brake Assist cannot always clearly iden-

tify objects and complex trac situations.

In such cases, Active Brake Assist might:

Give a warning or brake without reason

Not give a warning or not brake

Active Brake Assist is only an aid. The driver is

responsible for maintaining a suciently safe

distance to the vehicle in front, vehicle speed

and for braking in good time.

Always pay careful attention to the trac

situation; do not rely on Active Brake

Assist alone.

Be prepared to brake or swerve if neces-

sary.

If Active Brake Assist is deactivated or the func-

tions are restricted, e.g. owing to activation of

another driving system, the Active Brake Assist

ê warning lamp appears in the driver's dis-

play.

If the system is unavailable owing to soiled or

damaged sensors or a fault, or if the functions are

restricted, the Active Brake Assist Ó warning

lamp appears in the driver's display.

Also observe the system limits of Active Brake

Assist.

Distance warning function

From approximately 30 km/h, the distance warn-

ing function warns you if for several seconds, the

distance to the vehicle ahead is insucient at the

current speed. In this case, the distance warning

lamp L in the driver's display lights up. If the

distance to the vehicle ahead continues to

decrease at higher speeds, the distance warning

lamp L begins to ash.

336

Driving and parking

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Collision warning

The collision warning can assist you in the follow-

ing situations with an intermittent warning tone

and warning lamp L :

when approaching vehicles ahead at speeds

up to approximately 250 km/h

when approaching stationary vehicles, pedes-

trians walking longitudinally and cyclists ahead

at speeds up to approximately 80 km/h

when approaching crossing pedestrians and

cyclists at speeds up to approximately

70 km/h

when approaching stationary pedestrians and

cyclists at speeds up to approximately

60 km/h

Autonomous braking function

At speeds above approximately 7 km/h, the

autonomous braking function can intervene in the

following situations:

when approaching vehicles ahead at speeds

up to approximately 250 km/h

when approaching moving cyclists ahead,

pedestrians walking longitudinally and station-

ary vehicles at speeds up to approximately

80 km/h

when approaching crossing pedestrians and

cyclists at speeds up to approximately

70 km/h

Situation-related brake force boosting

At speeds above approximately 7 km/h, situation-

related brake force boosting can intervene in the

following situations.

when approaching vehicles ahead at speeds

up to approximately 250 km/h

when approaching moving cyclists ahead,

pedestrians walking longitudinally and station-

ary vehicles at speeds up to approximately

80 km/h

when approaching crossing pedestrians and

cyclists at speeds up to approximately

70 km/h

when approaching stationary pedestrians and

cyclists at speeds up to approximately

60 km/h

Cancelling a braking intervention by Active Brake

Assist

You can cancel a braking intervention by Active

Brake Assist at any time by:

rmly depressing the accelerator pedal or by

kickdown

releasing the brake pedal.

Active Brake Assist can cancel the braking inter-

vention if one of the following conditions is full-

led:

You are avoiding an obstacle by steering

action.

There is no longer a risk of collision.

An obstacle is no longer detected ahead of

your vehicle.

Turning manoeuvre function (vehicles with Driving

Assistance Package):

If a danger of collision with an oncoming vehicle

or two-wheeler is detected when turning across

an oncoming lane, autonomous braking can be

initiated at speeds below 15 km/h before you

have le your own lane.

Driving and parking

337

F247 0072 02

You can watch an animation on this topic via the

following link:

Active Evasive Steering Assist

WARNING Risk of accident despite Active

Evasive Steering Assist

Active Evasive Steering Assist cannot always

clearly identify objects and complex trac sit-

uations.

In such cases, Active Evasive Steering Assist

might:

issue an unfounded warning or initiate a

steering intervention

not issue a warning or not initiate a steer-

ing intervention.

The Active Evasive Steering Assist can provide

support in preventing a collision via an auto-

matically initiated steering intervention.

Always pay careful attention to the trac

situation; do not rely on Active Evasive

Steering Assist alone.

Be prepared to brake or swerve if neces-

sary.

Drive with adjusted speed if pedestrians

are in the area surrounding the road.

Active Evasive Steering Assist can automatically

react to objects that are stationary or moving lon-

gitudinally in your lane.

Active Evasive Steering Assist has the following

characteristics:

detection of pedestrians, cyclists and vehicles.

assistance by autonomous steering interven-

tion during a necessary evasive manoeuvre

autonomous activation if there is sucient

space in your own lane

Reaction from a speed of approximately

30 km/h up to a speed of approximately

80 km/h.

When Active Evasive Steering Assist is interven-

ing, and for the duration of the evasive action, a

warning tone is sounded and the distance warning

lamp L ashes.

The steering assistance by Active Evasive Steering

Assist can be cancelled at any time by steering,

accelerating or braking.

Active Evasive Steering Assist can intervene in the

following speed ranges:

when approaching stationary vehicles, pedes-

trians or cyclists at speeds from approximately

30 km/h to approximately 80 km/h

when approaching pedestrians or cyclists

moving longitudinally ahead at speeds from

approximately 30 km/h to approximately

80 km/h

System limits

Full system performance is not yet available for a

short time aer switching on the vehicle or aer

driving o. Depending on the environmental con-

ditions, it may take a few minutes before full sys-

tem performance is available.

The system may be impaired or may not function,

especially in the following situations:

in snow, rain, fog, heavy spray, glare, in direct

sunlight or in varying light conditions.

338

Driving and parking

F247 0072 02

if the sensors are soiled, misted up, damaged

or covered.

if the sensors are impaired owing to interfer-

ence from other radar sources, e.g. strong

radar reections in multi-storey car parks.

if a loss of tyre pressure or a defective tyre

has been detected and displayed.

in complex trac situations where objects

cannot always be clearly identied.

if pedestrians or vehicles move quickly into

the sensor detection range.

if pedestrians are hidden by other objects.

if the typical outline of a pedestrian cannot be

distinguished from the background.

if a pedestrian is not detected as such, e.g.

owing to special clothing or other objects.

if there is no lane marking, or it is not clearly

recognisable

if the course of the road is not almost straight

on bends with a tight radius.

if the driver's seat belt is not fastened.

if a trailer or bicycle rack has been attached

▌Setting Active Brake Assist

Requirements

The vehicle is switched on.

Multimedia system:

Settings

Assistance

Collision avoidance

Activate or deactivate the function.

It is recommended that you always leave

Active Brake Assist activated.

When switching o the Active Brake Assist the

distance warning function, the collision warning,

the autonomous braking function and the Active

Evasive Assist (with Driving Assistance Package)

are switched o.

If Active Brake Assist is deactivated, the æ

symbol appears in the status bar of the driver

display and when the vehicle is next started

the system is activated again.

Setting warning timing

Select Z alongside Active Brake Assist.

Select Early, Medium or Late.

If the ATTENTION ASSIST has detected signs

of fatigue or a microsleep, depending on the

country the system can warn earlier than set.

Further information about ATTENTION ASSIST

(/ page 319).

Speed Limit Assist

▌Function of Speed Limit Assist

This function is an on-demand feature

(/ page 79).

The Speed Limit Assist uses Open Street Map

data provided under the Open Database

Licence (ODbL) terms. For more information,

see: .

licence.

Speed Limit Assist detects speed limits with the

multifunction camera and displays them in the

driver display and optionally in the head-up dis-

play. The camera also detects speed limits with a

restriction indicated by an additional sign (e.g. in

wet conditions).

Driving and parking

339

F247 0072 02

Observe the notes on driving systems and your

responsibility; you may otherwise fail to recognise

potential dangers (/ page 310).

Notes on trailer operation

Observe also the notes on trailer operation

(/ page 375).

If a trailer or bicycle rack is connected correctly,

the central display shows the query about the

type of trailer and its maximum permissible speed

(/ page 380).

The driver must manually adjust the maximum

permissible speed in the

small or large trailer cat-

egory.

In particular, the country-specic laws must be

taken into account, e.g. on:

maximum design speed or maximum permissi-

ble speed for which the vehicle is approved

permissible gross mass with or without towing

vehicle

required number of years with a correspond-

ing driving licence

type and condition of the road used

the weather conditions

The maximum permissible speed adapted to the

vehicle/trailer combination can be transferred to

the manual or automatic speed transfer during the

journey (depending on the equipment).

On the system side, relevant additional signs for

speed limits and clear road category trac rules

can be considered for the vehicle combination

(depending on the country).

No maximum permissible speed can be selected

for a bicycle rack in the multimedia system. When

using a bicycle rack, observe the specications

for the maximum permissible speed in the manu-

facturer's manual.

Observe also the following information:

select a speed adapted to the trac, sur-

roundings and weather conditions

observe actual trac signs

observe applicable trac rules and regula-

tions

Observe the notes on driving systems and your

responsibility; you may otherwise fail to recognise

potential dangers (/ page 310).

Warning when the maximum permissible speed is

exceeded

The system can warn you if you unintentionally

exceed the maximum permissible speed. Depend-

ing on the country, you can set how much the

maximum permissible speed may be exceeded on

the multimedia system before a warning is issued.

You can select in the settings whether the warning

should be issued optically, with the trac sign

ashing in the driver display, or a combination of

optic and acoustic warning. Selection of the type

of warning is conrmed country-specically by an

indication in the driver display.

340

Driving and parking

F247 0072 02

Optical warning only

WARNING o

The type, duration and activation threshold of

the speed limit warning, as well as the option

of setting the timing of the activation thresh-

old upon which the warning is issued, are sub-

ject to legislation valid for the respective

country in which the vehicle is delivered.

Displays on the driver display

Permissible speed

Permissible speed with restriction

Additional sign with restriction

Trac signs that aect the maximum permis-

sible speed, e.g. indicating the beginning or

end of motorways can also be detected.

The system can show up to two trac signs on

the driver display simultaneously. The system

always prioritises displaying speed limits. The

head-up display shows only one maximum permis-

sible speed trac sign at a time. If two speed

signs are shown on the driver display, when speed

limits are detected, forexample, the value of the

le-hand speed limit

1 is transmitted to the lim-

iter, cruise control or Active Distance Assist

DISTRONIC for acceptance and is shown on the

head-up display.

Important information from other systems can

cause trac signs to be hidden for a short time.

If the Speed Limit Assist cannot determine the

current maximum permissible speed, to a

lack of signage, the following display appears in

the driver display:

This display is permanent if the vehicle is in a

country where Speed Limit Assist is not suppor-

ted. Speed Limit Assist is not available in all coun-

tries.

If the system is temporarily or permanently

unavailable due to a technical fault or soiling of

the windscreen, a corresponding display message

appears in the driver display. Depending on the

Driving and parking

341

F247 0072 02

country, the Speed Limit Assist warning lamp

ê also lights up in the driver display.

Please also note the information on display

messages (/ page 740).

System limits

The system may be impaired or inoperative in the

following situations in particular:

If visibility is poor, e.g. due to insucient illu-

mination of the road, highly variable shade

conditions, rain, snow, fog, swirling dust or

heavy spray.

If there is glare, e.g. from oncoming trac,

direct sunlight or reections.

If there is dirt on the windscreen in the vicinity

of the multifunction camera or if the camera is

misted up, damaged or obscured.

If the trac signs are dicult to see because,

forexample, they are dirty, obscured, faded,

iced over, damaged, inconveniently positioned,

insuciently illuminated or askew.

Active trac signs with LED displays may not

be detected correctly, or even at all due to

technical factors, suchas transmission fre-

quency.

If the signs, road markings or road layout are

ambiguous, e.g. in the case of trac signs at

road works, at exits and on-ramps, in the case

of adjacent lanes or parallel roads, in the case

of pedestrian crossing markings at trac

lights.

If the signage or road markings do not comply

with the standard.

If the signage, road markings, or road guid-

ance is country-specic and deviates from the

navigation system's route guidance, e.g. at or

aer road works.

Aer sharp turns and tight bends, if trac

signs are outside the camera's eld of vision.

If you overtake vehicles with trac signs

axed or attached to them.

If transport devices are used that are attached

to the trailer coupling, e.g. bicycle racks, the

system may react to restrictions for trailers.

▌Setting Speed Limit Assist

Multimedia system:

Settings

Assistance

Speed Limit Assist

Activating or deactivating the speed limit warning

The speed limit warning is switched on by

default (depending on the country).

Switch o Speed limit warning .

Following country-specic legislation, the

speed limit warning remains deactivated until

the next time the vehicle is switched on or o.

The audible speed limit warning can also be

switched o and on via quick-access, by

pressing and holding the mute button on the

steering wheel, by pressing the speed icon in

the status line of the media display or via a

voice control command (availability of func-

tions depending on respective country).

Change the type of speed limit warning

Change the warning to Visual or Visual &

audible

342

Driving and parking

F247 0072 02

Switching the acoustic signal for a new maximum

permissible speed on or o

The acoustic signal for a new maximum per-

missible speed is switched o at the factory.

The function determines whether a subtle, non-

intrusive sound supports each change of the dis-

played speed in the driver display.

Activate or deactivate the function.

Availability of the function is dependent on

the country.

Setting the warning threshold

This value determines the speed at which a warn-

ing is issued when exceeded.

Set the desired speed under warning thresh-

old.

The availability of the function is subject to coun-

try-specic legislation.

If one of the following systems is activated, the

detected speed can be manually adopted as the

maximum permissible speed:

Active Distance Assist DISTRONIC

Cruise control

Variable limiter

Further information about Active Distance

Assist DISTRONIC (/ page 325).

Trac Sign Assist

▌Function of Trac Sign Assist

This function is an on-demand feature

(/ page 79).

Trac Sign Assist detects the trac signs with

the multifunction camera and compares them

with the information on the digital road map of the

navigation system. It supports you by showing

detected speed limits and overtaking bans on the

driver display. Maximum permissible speeds can

also be shown on the head-up display.

The system can issue a warning when you exceed

the maximum permissible speed.

In some countries, the system can provide you

with further functions and can warn you when you

are approaching pedestrian crossings. If the sys-

tem detects that you are driving onto a section of

road in the wrong direction of travel, it triggers a

warning.

The camera also detects and analyses trac

signs with a restriction indicated by an additional

sign (e.g. in wet conditions).

Trac Sign Assist portrays only selected signs on

the driver display. Actual trac signs and speed

limits have priority over trac signs and speed

limits shown on the driver display.

Notes on trailer operation

Observe also the notes on trailer operation

(/ page 375).

If a trailer or bicycle rack is connected correctly,

the central display shows the query about the

type of trailer and its maximum permissible speed

(/ page 380).

The driver must manually adjust the maximum

permissible speed in the

small or large trailer cat-

egory.

In particular, the country-specic laws must be

taken into account, e.g. on:

maximum design speed or maximum permissi-

ble speed for which the vehicle is approved

Driving and parking

343

F247 0072 02

permissible gross mass with or without towing

vehicle

required number of years with a correspond-

ing driving licence

Type and condition of the road used

the weather conditions

The maximum permissible speed adapted to the

vehicle/trailer combination can be transferred to

the manual or automatic speed transfer during the

journey (depending on the equipment).

On the system side, relevant additional signs for

speed limits and clear road category trac rules

can be considered for the vehicle combination

(depending on the country).

No maximum permissible speed can be selected

for a bicycle rack in the multimedia system. When

using a bicycle rack, observe the specications

for the maximum permissible speed in the manu-

facturer's manual.

Observe also the following information:

select a speed adapted to the trac, sur-

roundings and weather conditions

observe actual trac signs

observe applicable trac rules and regula-

tions

Observe the notes on driving systems and your

responsibility; you may otherwise fail to recognise

potential dangers (/ page 310).

Displays on the driver display

Permissible speed

Permissible speed with restrictions

Additional sign with restriction

The system can show up to two trac signs on

the driver display simultaneously. The system

always prioritises displaying speed limits. The

head-up display shows only one maximum permis-

sible speed trac sign at a time. If two speed

signs are shown on the driver display, when speed

limits are detected, forexample, the value of the

le-hand speed limit

1 is always transmitted to

the limiter, cruise control or Active Distance

Assist DISTRONIC for acceptance and is shown

on the head-up display.

Important information from other systems can

cause trac signs to be hidden for a short time.

Examples of trac signs which can be displayed

344

Driving and parking

F247 0072 02

Trac Sign Assist can detect and display the fol-

lowing trac signs 1:

speed limits

end of speed limit

no overtaking zones

play streets

depending on the country: signs showing the

start or end of motorways and dual carriage-

ways

Trac Sign Assist can detect the following addi-

tional signs

3 and, if necessary, analyse the rele-

vance of the restrictions using other vehicle sen-

sors:

in wet conditions

slippery road surfaces

in fog

temporary restrictions

exits

restrictions for vehicle/trailer combinations

Trac Sign Assist also uses data from the digital

street map on the navigation system. When you

leave or enter a municipality or change roads, on

a motorway exit or slip road forexample, or aer

you turn at a junction, the display on the driver

display can thus be updated without a trac sign

having been detected.

Regularly update the digital road map of the

navigation system to ensure optimum func-

tioning of Trac Sign Assist (/ page 33).

Depending on vehicle equipment and country, the

system can also display speed restrictions ahead

on the driver display and head-up display. The

driver display can also show the distance to an

upcoming lower limit speed. Information from the

digital road map of the navigation system is used

for this purpose. The

Assistance menu can also

display a dynamic visualisation of the speed limits

ahead.

If Trac Sign Assist cannot determine the cur-

rently applicable maximum permissible speed

(e.g. due to a lack of signage), the following dis-

play appears in the driver display:

Trac Sign Assist is not available in all countries.

This is displayed continuously if the vehicle is in a

country where Trac Sign Assist is not supported.

If Trac Sign Assist is temporarily or permanently

unavailable due to a technical fault or soiling of

the windscreen, the Trac Sign Assist warning

lamp ê appears on the driver display.

Please also note the information on the dis-

play messages for Trac Sign Assist

(/ page 740).

Warning when the maximum permissible speed is

exceeded

The system can warn you if you unintentionally

exceed the maximum permissible speed. Depend-

ing on the country, you can set how much the

maximum permissible speed may be exceeded on

the multimedia system before a warning is issued.

You can switch o the warning, or select in the

settings whether the warning should be issued

optically, with the trac sign ashing in the driver

Driving and parking

345

F247 0072 02

display, or a combination of optic and acoustic

warning. The selected setting is conrmed by an

indication on the driver display.

Optical warning only

WARNING o

The type, duration and deployment stages of

the speed limit warning, as well as the option

of setting the timing of the deployment stages

upon which the warning is issued, are subject

to legislation valid for the respective country

in which the vehicle is delivered.

Additional functions of Trac Sign Assist (coun-

try-specic)

Warning for no-entry signs: Trac Sign Assist can

warn you if you drive the wrong way down a sec-

tion of road, forexample, on motorway slip roads

or one-way streets.

Warning at pedestrian crossings: Trac Sign

Assist can warn you up to a speed of approx-

imately 70 km/h that you are approaching a

pedestrian crossing, wherever pedestrians are

present in the danger zone or are moving towards

it.

System limits

The system may be impaired or inoperative in the

following situations in particular:

If visibility is poor, e.g. due to insucient illu-

mination of the road, highly variable shade

conditions, rain, snow, fog, swirling dust or

heavy spray.

If there is glare, e.g. from oncoming trac,

direct sunlight or reections.

If there is dirt on the windscreen in the vicinity

of the multifunction camera or if the camera is

misted up, damaged or obscured.

If the trac signs are dicult to see because,

forexample, they are dirty, obscured, faded,

iced over, damaged, inconveniently positioned,

insuciently illuminated or askew.

Active trac signs with LED displays may not

be detected correctly, or even at all due to

technical factors, suchas transmission fre-

quency.

If the information on the navigation system's

digital map is incorrect, incomplete or out of

date.

If the signs, road markings or road layout are

ambiguous, e.g. in the case of trac signs at

road works, at exits and on-ramps, in the case

of adjacent lanes or parallel roads, in the case

of pedestrian crossing markings at trac

lights.

If the signage or road markings do not comply

with the standard.

If the signage, road markings, or road guid-

ance is country-specic and deviates from the

346

Driving and parking

F247 0072 02

navigation system's route guidance, e.g. at or

aer road works.

Aer sharp turns and tight bends, if trac

signs are outside the camera's eld of vision.

If you overtake vehicles with trac signs

axed or attached to them.

If you use transport equipment secured to the

vehicle with a trailer coupling, suchas a bicy-

cle rack, restrictions for vehicle/trailer combi-

nations may be considered valid as applicable.

▌Setting Trac Sign Assist

Multimedia system:

Settings

Assistance

Traffic Sign Assist

Activating or deactivating the speed limit warning

The speed limit warning is switched on by

default (depending on the country).

Switch o Speed limit warning .

Following country-specic legislation, the

speed limit warning remains deactivated until

the next time the vehicle is switched on or o.

The audible speed limit warning can also be

switched o and on via quick-access, by

pressing and holding the mute button on the

steering wheel, by pressing the speed icon in

the status line of the media display or via a

voice control command (availability of func-

tions depending on respective country).

Change the type of speed limit warning

Change the warning to Visual or Visual &

audible

Setting the warning threshold

This value determines the speed at which a warn-

ing is issued when exceeded.

Set the desired speed under warning thresh-

old.

Availability of the function is subject to coun-

try-specic legislation.

Switching the acoustic signal for a new maximum

permissible speed on or o

The acoustic signal for a new maximum per-

missible speed is switched o at the factory.

The function determines whether a subtle, non-

intrusive sound supports each change of the dis-

played speed in the driver display.

Activate or deactivate the function.

Availability of the function is dependent on

the country.

Trac light view

▌Information about the trac light view

The trac light view supports the driver when

waiting in front of a red light by displaying the

camera image on the central display. The camera

image is displayed when the driver is the rst vehi-

cle in front of the red light and faded out when the

vehicle drives o.

▌Displaying trac light view

Requirements:

The

Traffic light view option is switched on.

A trac light view is available.

Driving and parking

347

F247 0072 02

Multimedia system:

Settings

Assistance

Traffic light view

This function is not available in all countries.

If the vehicle is in rst position at a trac light,

the camera image with trac light view is shown

on the central display.

When the vehicle pulls away, the camera image is

faded out.

Activate D or deactivate E Traffic

light view

Using other available functions

Select Z.

Select On request or Automatic.

On request is set and a trac light view is

available, the

Please tap here for traffic light

view. message is displayed. The camera image

is shown aer conrmation of the message.

When

Automatic is set, the camera image is

automatically displayed when the trac light

view is available.

Blind Spot Assist

▌Function of Blind Spot Assist with exit warning

Blind Spot Assist uses two lateral, rear-facing

radar sensors to monitor the area up to 40 m

behind and 3 m next to your vehicle.

If at speeds above approximately 12 km/h a vehi-

cle is detected and this vehicle subsequently

enters the monitoring range directly next to your

vehicle, the warning lamp in the outside mirror

lights up red.

Status display in the driver's display

Grey: the system is activated but inopera-

tive.

Green: the system is activated and opera-

tional.

If a vehicle is detected close to your vehicle and

you actuate the turn signal indicator in its direc-

tion, a double warning tone sounds and the red

warning lamp in the outside mirror ashes. If the

turn signal indicator remains switched on, all

other detected vehicles are indicated only by the

ashing of the red warning lamp.

If you overtake a vehicle quickly, no warning is

given.

WARNING Risk of accident despite Blind

Spot Assist

Blind Spot Assist does not react to vehicles

approaching and overtaking you at a greatly

dierent speed.

Blind Spot Assist cannot warn drivers in this

situation.

Always pay careful attention to the trac

situation and maintain a safe distance at

the side of the vehicle.

Observe the notes on driving systems and your

responsibility; you may otherwise fail to recognise

dangers (/ page 310).

Exit warning

The exit warning is an additional function of Blind

Spot Assist and can warn vehicle occupants about

approaching vehicles when leaving the vehicle

when stationary.

348

Driving and parking

F247 0072 02

WARNING Risk of accident despite exit

warning

The exit warning neither reacts to stationary

objects nor to persons or road users

approaching you at a greatly diering speed.

The exit warning cannot warn drivers in these

situations.

Always pay particular attention to the

trac situation when opening the doors

and make sure there is sucient clear-

ance.

If there is a vehicle in the monitoring range, this is

indicated in the outside mirror. If a vehicle occu-

pant opens the door on the side with the warning,

a warning tone sounds and the warning lamp in

the outside mirror starts to ash.

This additional function is only available when

Blind Spot Assist is active. When the exit warning

is activated, it can warn vehicle occupants for up

to three minutes aer switching the vehicle o.

The exit warning is no longer available once the

warning lamp in the outside mirror ashes three

times.

The exit warning is only an aid and not a substi-

tute for the attention of vehicle occupants. The

responsibility for opening and closing the doors

and for leaving the vehicle remains with the vehi-

cle occupants.

System limits

Blind Spot Assist may be restricted in the follow-

ing situations, in particular:

if there is dirt on the sensors or the sensors

are obscured

in poor visibility, e.g. due to fog, heavy rain or

snow

if there are narrow vehicles, e.g. bicycles or

motorbikes

if the road has very wide or narrow lanes

if vehicles are not driving in the middle of their

lane

Warnings may be issued in error when driving

close to crash barriers or similar continuous lane

borders. Always make sure that there is sucient

distance to the side for other trac or obstacles.

Warnings may be interrupted when driving along-

side long vehicles, for example lorries, for a pro-

longed time.

Blind Spot Assist is not operational when reverse

gear is engaged.

Blind Spot Assist and the exit warning are not

operational when a trailer is coupled to the vehi-

cle and the electrical connection has been cor-

rectly established.

The exit warning may be limited in the following

situations:

when the sensors are covered by adjacent

vehicles in narrow parking spaces

when people approach the vehicle

in the event of stationary or slowly moving

objects

▌Activating or deactivating Blind Spot Assist

Multimedia system:

Settings

Assistance

Collision avoidance

Activate or deactivate Blind Spot Assist.

Driving and parking

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Active Lane Keeping Assist

▌Function of Active Lane Keeping Assist

Active Lane Keeping Assist monitors the area in

front of your vehicle by means of a multifunction

camera, (/ page 310) and can protect you from

leaving your lane unintentionally. The system can

guide you back into your lane by course-correct-

ing steering intervention, and warn you with tangi-

ble steering wheel feedback.

Active Lane Keeping Assist is available in the

speed range between 60 km/h and 200 km/h.

The system can intervene if the following condi-

tions are met:

Active Lane Keeping Assist detects a lane

marking.

One of your front wheels moves onto this lane

marking.

If you activate the direction indicators, there is no

steering intervention on that side.

There is no steering intervention if you leave your

lane without activating the direction indicators but

there is a risk of collision with a moving obstacle

in your own lane.

Vehicles with Blind Spot Assist or Driving Assis-

tance Package: If the system detects an obstacle,

e.g. another vehicle, in the adjacent lane, there is

steering intervention despite the direction indica-

tors.

In the following cases a warning 1 appears in

the driver's display and a warning tone is soun-

ded:

a steering intervention by Active Lane Keeping

Assist has a duration longer than approx-

imately ten seconds.

there are two or more steering interventions

by the systems within approximately three

minutes, without steering action by the driver.

You can set the sensitivity of the system in the

Active Lane Keeping Assist settings, to determine

the level of assistance. You can also determine

whether the system is to react to interrupted lane

markings, or only to solid lane markings

(/ page 352).

Status displays of Active Lane Keeping Assist

White: Active Lane Keeping Assist is

switched o.

If ESP

is switched o or a tyre pressure

loss warning is given, Active Lane Keeping

Assist is automatically switched o.

Yellow: There is a malfunction. Also note

any display messages.

Grey: Active Lane Keeping Assist is

switched on but not ready.

Green: Active Lane Keeping Assist is

switched on and ready.

Red: Active Lane Keeping Assist has gui-

ded you back into your lane by course-cor-

recting steering intervention. If a tangible

warning is also given at the steering wheel,

the status display ashes. Only the lane

350

Driving and parking

F247 0072 02

marking on the warning side is shown in

red.

Display in the driver's display in the menu Assistance

If one of your front wheels moves onto a recog-

nised lane marking, this is highlighted in red in the

Assistance menu in the driver's display.

System limits

In the following situations, there may be no

course-correcting steering intervention but a

warning may be given at the steering wheel

depending on the situation:

if you clearly and actively steer, brake or

accelerate.

if a driving safety system is intervening, e.g.

ESP

or Active Brake Assist

if you have adopted a sporty driving style with

high cornering speeds or high rates of acceler-

ation.

if transport equipment such as a trailer or rear

bicycle rack is attached to the trailer coupling,

and the electrical connection has been estab-

lished correctly

The system may be impaired or may not function,

particularly in the following situations:

if there is poor visibility, e.g. owing to insu-

cient road illumination, highly variable shade

conditions, rain, snow, fog or heavy spray.

if there is glare, e.g. from oncoming trac,

direct sunlight or reections.

if there is soiling on the windscreen in the

vicinity of the multifunction camera, or if the

camera is misted up, damaged or obscured.

if the bumper is soiled in the area of the radar

sensors, or if these are damaged or obscured

if there are no lane markings, or several

unclear lane markings are present for one

lane, e.g. around roadworks.

if the lane markings are worn, dark or cov-

ered.

if the distance to the vehicle in front is too

short and the lane markings cannot be detec-

ted as a result.

if the lane markings change quickly, e.g. lanes

branch o, cross one another or merge.

if the carriageway is very narrow and winding.

Observe the notes on driving systems and your

responsibility; you may otherwise fail to recognise

dangers (/ page 310).

You can watch an animation on this topic via the

following link:

Driving and parking

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F247 0072 02

▌Activating/deactivating Active Lane Keeping

Assist

Multimedia system:

Settings

Assistance

Collision avoidance

Active Lane Keeping Assist

Activate or deactivate the function.

Alternatively, Active Lane Keeping Assist can be

activated and deactivated via the y quick vehi-

cle access.

Aer starting the vehicle, the settings are

country-specic.

▌Setting Active Lane Keeping Assist

Multimedia system:

Settings

Assistance

Collision avoidance

Active Lane Keeping Assist

Setting the sensitivity

Select Z.

Select Early, Med. or Late.

The last setting selected is automatically adopted

when the vehicle is next started.

The standard setting for this function is coun-

try-dependent.

Activating/deactivating assistance for interrupted

lane markings

Select Advanced support.

The last setting selected is automatically adopted

when the vehicle is next started.

The standard setting for this function is coun-

try-dependent.

This function must be activated for Emer-

gency Stop Assist to be fully available.

Further information about Emergency Stop

Assist (/ page 333).

Function of adaptive damping adjustment

Suspension with adaptive damping adjustment

continuously adjusts the characteristics of the

suspension dampers to the current operating and

driving conditions.

The damping is set individually for each wheel and

is aected by the following factors:

the road surface conditions

vehicle load

the drive program selected

the driving style

The drive program can be adjusted using

DYNAMIC SELECT.

Reversing camera

▌Function of the reversing camera

The reversing camera serves solely as an aid. It is

not a substitute for you having to pay attention to

your surroundings. The responsibility for safe

manoeuvring and parking remains with you.

Ensure that there are no persons, animals or

objects etc., in the manoeuvring area while

manoeuvring and parking.

The area behind the vehicle is displayed as a

mirror image, as it would appear in the inside

rearview mirror.

352

Driving and parking

F247 0072 02

Vehicles without Parking Package

The following camera perspectives are available in

the central display:

Standard view

Guide lines at a distance of approximately

0.5 m, 1.0 m, 1.5 m and 3.0 m from the rear

area

Lane marking the course the tyres will take

with the current steering angle (dynamic)

Driven surface depending on the current

steering angle (dynamic)

Guide line at a distance of approximately

0.3 m from the rear area

Wide-angle view Trailer view

Yellow guide line, locating aid

Red guide line at a distance of approximately

0.3 m from the ball head of the trailer hitch

Ball head of the trailer hitch

Pedestrian braking function

This function is only available in vehicles with-

out the Parking Package. Vehicles with the

Parking Package are equipped with manoeu-

vring assistant functions (/ page 370).

The pedestrian braking function can prevent colli-

sions with pedestrians when the vehicle reverses

at slow speeds. If the reversing camera detects a

Driving and parking

353

F247 0072 02

person in the vehicle's path, the vehicle can be

braked to a standstill.

The pedestrian braking function can intervene

under the following conditions:

The vehicle is reversing at a speed below

15 km/h.

The camera image is shown on the central dis-

play.

When automatic braking is triggered, the symbol

º appears in red in the camera image.

Additionally, the º

Pedestrian! Deact.

emerg. braking: press here

message appears.

The driver can close or ignore this message.

Pedestrian braking then remains active. When the

driver taps the message, pedestrian braking is

momentarily deactivated.

In the following cases, the pedestrian braking

function is activated again:

The vehicle is travelling forward at over

16 km/h.

The vehicle is switched o and on again.

If the function is unavailable or deactivated,

the symbol º appears in grey in the cam-

era image.

The pedestrian braking function serves solely as

an aid. It is not a substitute for you having to pay

attention to your surroundings. The responsibility

for safe manoeuvring and parking remains with

you. Ensure that no persons, animals or objects

etc. are in the manoeuvring range.

WARNING Risk of accident caused by limi-

ted detection of the pedestrian braking

function

The pedestrian braking function cannot always

clearly detect people. Other obstacles are not

detected by the function.

In these cases, the function may brake unnec-

essarily or not brake at all.

Always pay careful attention to the trac

situation; do not rely on the pedestrian

braking function alone.

Be ready to brake.

In the following situations, the pedestrian braking

function is not available:

On inclines

If transport equipment, forexample a trailer or

bicycle rack, is attached to the trailer hitch

and the electrical connection has been cor-

rectly established

If the reversing camera is not operational

Please also note the system limits of the reversing

camera.

Vehicles with Parking Package

The following camera perspectives are available in

the central display:

354

Driving and parking

F247 0072 02

Menu Camera views

Lane marking the course the tyres will take

with the current steering angle (dynamic)

Driven surface depending on the current

steering angle (dynamic)

Menu Parking Assistance

Reversing camera with top view

Wide-angle view

Trailer view

Activating/deactivating Parking Assist

PARKTRONIC (/ page 363)

Guide line at a distance of approximately

0.3 m from the rear area

Guide lines at a distance of approximately

0.5 m, 1.0 m, 1.5 m and 3.0 m from the rear

area

Warning display of Parking Assist

PARKTRONIC (/ page 360)

When Active Parking Assist is active, paths

1 are displayed in green (/ page 364).

Wide-angle view

Warning display of Parking Assist

PARKTRONIC (/ page 360, 372)

Trailer view

Yellow guide line, locating aid

Red guide line at a distance of approximately

0.3 m from the ball head of the trailer hitch

Ball head of the trailer hitch

System limits

If the system is not ready for operation, the Sys-

tem inoperative

message appears on the central

display.

The reversing camera will not function; or will only

partially function in the following situations:

You are driving forwards at a speed greater

than approximately 16 km/h.

Driving and parking

355

F247 0072 02

The tailgate is open.

The weather conditions are poor, e.g. heavy

rain, snow, fog, storm or spray.

The light conditions are poor, e.g. at night or if

a light is shining into the camera.

The camera lens is obstructed, dirty or misted

up. Observe the notes on cleaning the revers-

ing camera (/ page 558).

The camera or rear of your vehicle is dam-

aged. In this case, have the camera and its

position and setting checked at a qualied

specialist workshop.

Do not use the reversing camera in these

types of situations. You could otherwise injure

others or collide with objects when parking

the vehicle.

The eld of vision and other functions of the cam-

era system may be restricted due to additional

vehicle attachments (e.g. licence plate bracket or

bicycle rack).

The contrast of the display may be impaired

by direct sunlight or by other light sources,

e.g. when driving out of a garage. Particular

attention must be aorded in these situations.

Have the display repaired or replaced if,

forexample, its use is considerably restricted

due to pixel errors.

Observe also the information on vehicle sensors

and cameras (/ page 310).

360° Camera

▌Function of the 360° camera

The 360° camera is a system comprising four

cameras which cover the immediate surroundings

of the vehicle. The cameras support you, forexam-

ple, when parking or when exits are dicult to

see.

The 360° camera includes the following cameras

and evaluates their images:

Reversing camera

Front camera

Two outside mirror cameras

The cameras serve solely as aids and may show a

distorted or incorrect perspective of obstacles, or

even not at all. They are not a substitute for you

having to pay attention to your surroundings. The

responsibility for safe manoeuvring and parking

remains with you. Ensure that there are no per-

sons, animals or objects etc., in the manoeuvring

area while manoeuvring and parking.

The following camera perspectives are available in

the central display:

Menu Camera views overview

Menu Parking Assistance

Top view with image from the front camera

Panorama View

Top view with image from the reversing cam-

era

356

Driving and parking

F247 0072 02

Top view with images from the side cameras

in the outside mirrors

Activating/deactivating Parking Assist

PARKTRONIC (/ page 363)

Set the GPS activation point

The warning display of the Parking Assist

PARKTRONIC is shown in all views

(/ page 360).

Function of the guide lines

Guide lines at a distance of approximately

0.5 m, 1.0 m, 1.5 m and 3.0 m from the rear

area

Lane marking the course the tyres will take

with the current steering angle (dynamic)

Driven surface depending on the current

steering angle (dynamic)

Guide line at a distance of approximately

0.3 m from the rear area

When Active Parking Assist is active, lanes

and guidelines display green instead of yellow

(/ page 364).

Top view with the image from the front or reversing

camera

Warning display of Parking Assist

PARKTRONIC (/ page 360)

Your vehicle from above

Lane indicating the route the vehicle will take

at the current steering angle

Driving and parking

357

F247 0072 02

Top view with image from the outside mirror cameras

The front and rear sides of the vehicle can be

seen in this view.

Wide-angle view

Display of Parking Assist PARKTRONIC

(/ page 360)

Top view with image from the reversing cam-

era

Wide-angle view

If the top view with the reversing camera image is

displayed, switch to the wide-angle view with the

icon 2 indented to the le. When the wide-angle

view is displayed, switch back to the respective

top view.

If you select the trailer view and no trailer is cou-

pled to the vehicle, the following display appears:

Trailer view

To switch between standard and trailer view

Yellow guide line, locating aid

Ball head of the trailer hitch

Red guide line at a distance of approximately

0.3 m from the ball head of the trailer hitch

In trailer mode, the guide lines are shown at

the level of the trailer hitch.

When the electrical connection is established

between the vehicle and the trailer, the display

changes to the side camera view.

358

Driving and parking

F247 0072 02

Side view of outside mirror cameras in trailer view

To switch between standard and trailer view

System limits

If the system is not ready for operation, the Sys-

tem inoperative

message appears on the central

display.

WARNING Risk of accident due to func-

tional limitations of the 360° camera

If the function of the 360° camera is restric-

ted, there is a risk of collision with persons or

objects.

Do not use the 360° camera in case of

functional limitations.

Ensure that there are no persons, ani-

mals or objects etc., in the manoeuvring

area while manoeuvring and parking.

The 360° camera will not function, or will only

partially function in the following situations:

You are driving forwards at a speed greater

than approximately 16 km/h.

The doors are open.

An outside mirror is not completely extended.

The tailgate is open.

The weather conditions are poor, e.g. heavy

rain, snow, fog, storm or spray.

The light conditions are poor, e.g. at night or if

a light is shining into the camera.

The camera lens is obstructed, dirty or misted

up. See the notes on cleaning the 360° cam-

era (/ page 558).

If cameras or vehicle components in which the

cameras are tted are damaged. In this event,

have the cameras, their positions and their

setting checked at a qualied specialist work-

shop.

For technical reasons, the standard height of the

vehicle may be altered if the vehicle is carrying a

heavy load and can result in inaccuracies in the

guide lines and in the display of the generated

images.

The eld of vision and other functions of the cam-

era system may be restricted due to additional

vehicle attachments (e.g. licence plate bracket or

bicycle rack).

The contrast of the display may be impaired

by abrupt, direct sunlight or other light sour-

ces, e.g. when driving out of a garage. Partic-

ular attention must be aorded in these con-

ditions.

Have the display repaired or replaced if,

forexample, its use is considerably restricted

due to pixel errors.

Observe also the information on vehicle sensors

and cameras (/ page 310).

Driving and parking

359

F247 0072 02

▌Calling up the 360° camera views using the

button

Press button 1.

Select Camera views menu.

Select the desired view in the multimedia sys-

tem (/ page 356).

▌Selecting a view for the 360° Camera (reverse

gear)

Requirements

The

Activation in R setting is activated in the

multimedia system .

Engage reverse gear.

Select the desired view in the multimedia sys-

tem (/ page 356).

▌Opening the camera cover

Multimedia system:

Settings

Assistance

Camera

Select Open camera cover.

The camera cover closes automatically aer

some time or aer the vehicle is switched on

or o.

Parking Assist PARKTRONIC

▌Function of Parking Assist PARKTRONIC

Parking Assist PARKTRONIC is an electronic park-

ing assistance system that monitors the area sur-

rounding your vehicle and visually and audibly

shows you the distance between the vehicle and a

detected obstacle.

The passive side impact protection also warns you

of obstacles to the side. These must be detected

beforehand by the sensors in the front or rear

bumper while driving past them. If you steer in the

direction of a detected obstacle and there is a risk

of a lateral collision, a warning is issued.

Passive side impact protection can be activated

and deactivated via the multimedia system

(/ page 363).

For front or rear obstacles to the side to be dis-

played, the vehicle must rst travel a distance of

at least half a vehicle length. Once the vehicle has

travelled a distance of one vehicle length, obsta-

cles on all sides can be shown.

Parking Assist PARKTRONIC is only an aid. It is

not a substitute for you paying attention to the

surroundings. The responsibility for safe manoeu-

vring and parking remains with you. Make sure

that there are no persons, animals or objects in

the manoeuvring area while manoeuvring and

parking in/exiting parking spaces.

360

Driving and parking

F247 0072 02

Displays in the central display

Vehicles with 360° camera

Vehicles with reversing camera

Ready for display at the front and rear

Ready for display all round

All-round display readiness and obstacle

detection

As soon as PARKTRONIC Parking Assist is ready

for display, the respective areas of the display

to 3 are shown in blue.

The colour of the display changes depending on

the distance to the detected obstacle:

Blue: > 1 m (no obstacles detected)

Yellow: approximately 1 m - 0.7 m

Orange: approximately 0.7 m - 0.4 m

Red: < 0.4 m

Vehicles with 360° camera: the boundary line

shis dynamically depending on the position and

distance of the obstacles detected.

An intermittent warning tone also sounds depend-

ing on the distance to the obstacle detected. You

can set the timing of the warnings in the multime-

dia system. In the

Warn early setting, the system

warns you from a distance of 1 m. In the standard

setting, the warning is only from 0.4 m.

Vehicles with 360° camera

Driving and parking

361

F247 0072 02

Vehicles with reversing camera

If you are not in the

Camera & parking menu and

an obstacle in the vehicle path is detected, a pop-

up window

1 appears in the central display if the

following requirements are met:

Vehicles without Active Parking Assist: when

driving no faster than 12 km/h.

Vehicles with Active Parking Assist: when driv-

ing no faster than 18 km/h.

Optionally, obstacles detected by Parking Assist

PARKTRONIC from a distance of approximately

1.0 m in front 2 and 0.7 m on the sides 3 can

also be displayed in the head-up display.

System limits

Parking Assist PARKTRONIC does not necessarily

take into account the following obstacles:

Obstacles below the detection range, -

sons, animals or objects.

Obstacles above the detection range, -

truding loads, overhangs or loading ramps of

lorries.

Pedestrians or animals approaching the vehi-

cle from the side.

Objects placed next to the vehicle

Obstacles on the sides are not shown in the fol-

lowing situations, for example:

You park the vehicle and switch it o.

You open the doors.

Aer the engine is restarted, obstacles must be

detected again by driving past them before a new

warning can be issued.

Also, observe the system limits of the following

systems:

Reversing camera (/ page 352)

360° camera (/ page 356)

Observe the information on vehicle sensors and

cameras; the system otherwise cannot function

properly (/ page 310).

Vehicles with trailer hitch: If a transport device,

or bicycle rack is attached to the trailer

hitch, and the electrical connection is correctly

362

Driving and parking

F247 0072 02

established. PARKTRONIC Parking Assist is deac-

tivated for the rear zone.

Problems with Parking Assist PARKTRONIC

If the Parking Assist PARKTRONIC display lights

up red for approximately three seconds and then

goes out, and the é symbol appears in the

driver display, the system may have been deacti-

vated due to signal interference. Start the vehicle

again and check if Parking Assist PARKTRONIC

works at a dierent location.

If a warning tone also sounds, it may be due to

one of the following causes:

The sensors are dirty: clean the sensors

(/ page 558).

Parking Assist PARKTRONIC has been deacti-

vated due to a malfunction: restart the vehi-

cle. If the problem persists, consult a qualied

specialist workshop.

▌Activating/deactivating Parking Assist

PARKTRONIC

NOTE Vehicle damage when parking or

manoeuvring due to nearby objects

Parking Assist PARKTRONIC may not detect

certain objects in the close-up range.

When parking or manoeuvring, pay par-

ticular attention to objects that are

under or above the sensors, e.g. ower

pots or drawbars. The vehicle or other

objects may otherwise be damaged.

Requirements

The camera menu is open.

Or: the PARKTRONIC pop-up window appears.

Tap = on the central display.

If the indicator lamp is lit, Parking Assist

PARKTRONIC is active. If the indicator lamp does

not light up or the symbol é is displayed,

PARKTRONIC Parking Assist is not active.

Parking Assist PARKTRONIC is automatically

activated when the vehicle is started.

Alternatively, Parking Assist PARKTRONIC can be

activated or deactivated in the quick-access

menu.

▌Setting the warning tones of Parking Assist

PARKTRONIC

Multimedia system:

Settings

Assistance

Parking

PARKTRONIC

Adjusting warning tones

Select Set warning tones.

Set the desired level under Volume or Tone

pitch

Activating/deactivating audio fadeout

Audio fadeout

select and Audio fade for

warnings

switch on or o.

The volume of the currently playing media

source is reduced during a Parking Assist

PARKTRONIC warning tone.

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363

F247 0072 02

Audio fadeout

select and Audio fadeout in

trans. position R

switch on or o.

The volume of the currently playing media

source is reduced when reverse gear is

engaged.

Setting the time of the warnings

Select Time of warning.

Set the desired warning time for Front or

Rear.

Activate or deactivate Side warning.

Active Parking Assist

▌Function of Active Parking Assist

Active Parking Assist is an electronic parking

assistance system which uses ultrasound with the

assistance of the reversing camera and 360°

camera. When you are driving forwards up to

approximately 35 km/h, the system automatically

measures parking spaces on both sides of the

vehicle.

Active Parking Assist serves solely as an aid. It is

not a substitute for you having to pay attention to

your surroundings. The responsibility for safe

manoeuvring and parking remains with you.

Ensure that no persons, animals or objects etc.

are in the manoeuvring range.

Active Parking Assist oers the following func-

tions:

Vehicles with reversing camera

Parking in parking spaces parallel to the road-

way

Reversing into parking spaces perpendicular

to the roadway

The parking space is freely selectable. The park-

ing procedure is executed with the vehicle revers-

ing.

Vehicles with 360° camera

Parking in parking spaces parallel to the road-

way

Parking in parking spaces perpendicular to the

roadway (either forwards or reversing as

desired)

Parking in parking spaces that can only be

detected as such from markings (forexample

at the roadside)

Exiting parking spaces if you have parked

using Active Parking Assist

The parking space is freely selectable. The park-

ing direction (forwards or reversing) can also be

freely selected, depending on the orientation of

the parking space.

If Active Parking Assist is available, the Ç mes-

sage appears in the driver display. When the sys-

tem detects parking spaces, È appears. The

arrows show the side of the roadway on which

free parking spaces are located. These are then

shown on the central display.

When Active Parking Assist is activated, the turn

signal indicators are activated based on the calcu-

lated path of your vehicle. The procedure is assis-

ted by acceleration, braking, steering, and gear

changes when entering or exiting a parking space.

To start the parking procedure, press the button

c (/ page 366).

364

Driving and parking

F247 0072 02

Active Parking Assist will be cancelled in the fol-

lowing situations:

You press the c button again.

You begin steering.

You select park position j.

You engage the electric parking brake.

ESP

intervenes.

You open the driver's door.

System limits

If the exterior lighting is malfunctioning, Active

Parking Assist is not available.

Objects above or below the detection range of

Active Parking Assist, e.g. protruding loads, over-

hangs or loading ramps of trucks or parking space

boundaries are not detected when measuring the

parking space. Neither are these subsequently

taken into account when calculating the parking

procedure. In some circumstances, Active Parking

Assist may prematurely guide you into the parking

space or brake too late.

Certain environmental conditions, suchas snowfall

or heavy rain, may lead to a parking space being

mismeasured. Parking spaces that are partially

occupied by trailer drawbars might not be identi-

ed as such or be measured incorrectly. Only use

Active Parking Assist on level road surfaces with

adequate grip.

WARNING Risk of accident due to objects

located above or below the detection

range of Active Parking Assist

If there are objects above or below the detec-

tion range, the following situations may arise:

Active Parking Assist may steer too early.

The vehicle may not stop in front of these

objects.

There is a danger of collision!

In these situations, do not use Active

Parking Assist.

Active Parking Assist can also display unsuitable

parking spaces, e.g. parking spaces in which

parking is not permitted or on unsuitable surfa-

ces.

Do not use Active Parking Assist in the following

situations:

In extreme weather conditions suchas ice,

packed snow or in heavy rain.

When transporting a load that protrudes

beyond the vehicle.

If the parking space is on a steep downhill or

uphill gradient.

When snow chains are tted.

When a trailer or bicycle rack is attached

Directly aer a tyre change or when spare

tyres are tted.

If the tyre pressure is too low or too high.

On steep inclines of more than approximately

15 %.

You can watch an animation on this topic via the

following link:

Driving and parking

365

F247 0072 02

▌Parking with Active Parking Assist

WARNING Risk of accident due to objects

located above or below the detection

range of Active Parking Assist

If there are objects above or below the detec-

tion range, the following situations may arise:

Active Parking Assist may steer too early.

The vehicle may not stop in front of these

objects.

There is a danger of collision!

In these situations, do not use Active

Parking Assist.

Press button1.

Parking Assistance menu (example)

Select 2 Parking Assistance menu.

Parking spaces

3 detected by the system are

shown on the central display.

366

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F247 0072 02

Parking Assistance menu (example)

When the vehicle is stationary, the indicated vehi-

cle path

4 into the currently selected parking

space

5 also appears.

If a parking space is displayed: stop the vehi-

cle.

If necessary, select another parking space.

Vehicles with 360° camera: to change the

parking direction, tap the selected parking

space again.

To start the parking procedure: press button

1 again.

Take your hands o the steering wheel.

The vehicle drives into the selected parking

space.

The turn signal indicator is switched on automati-

cally when the parking procedure begins. You are

responsible for selecting the turn signal indicator

in accordance with the trac conditions. If neces-

sary, select the turn signal indicator accordingly.

WARNING Risk of accident due to vehicle

swinging out while parking or pulling out

of a parking space

While parking or exiting a parking space, the

vehicle swings out and can drive onto areas of

the oncoming lane.

This could cause you to collide with objects or

other road users.

Pay attention to objects and other road

users.

Where necessary, stop the vehicle or

cancel the parking procedure with Active

Parking Assist.

On completion of the parking procedure, the

Active Parking Assist finished message appears.

Secure the vehicle against rolling away. When

required by legal requirements or local condi-

tions: turn the wheels towards the kerb.

You can stop the vehicle and change the

transmission position during the parking pro-

cedure. The system then calculates a new

vehicle path. If no new vehicle path is availa-

ble, the transmission position can be changed

again, or the process can be cancelled.

▌Exiting a parking space with Active Parking

Assist

WARNING Risk of accident due to objects

located above or below the detection

range of Active Parking Assist

If there are objects above or below the detec-

tion range, the following situations may arise:

Active Parking Assist may steer too early.

The vehicle may not stop in front of these

objects.

Driving and parking

367

F247 0072 02

There is a danger of collision!

In these situations, do not use Active

Parking Assist.

Requirements

The vehicle is equipped with a 360° camera.

The vehicle has been parked with Active Park-

ing Assist.

Start the vehicle.

Press button 1.

Parking Assistance menu (example)

Select Parking Assistance 2 menu.

If necessary, change direction of exit 3.

To start exiting the parking space: press but-

ton 1 again.

If necessary, change the transmission posi-

tion. Observe any messages displayed on the

driver's display and central display.

The vehicle moves out of the parking space.

The turn signal indicator is automatically switched

on when exiting a parking space begins and

switched o when it is completed. You are

responsible for selecting the turn signal indicator

368

Driving and parking

F247 0072 02

in accordance with the trac conditions. If neces-

sary, select the turn signal indicator accordingly.

WARNING Risk of accident due to vehicle

swinging out while parking or pulling out

of a parking space

While parking or exiting a parking space, the

vehicle swings out and can drive onto areas of

the oncoming lane.

This could cause you to collide with objects or

other road users.

Pay attention to objects and other road

users.

Where necessary, stop the vehicle or

cancel the parking procedure with Active

Parking Assist.

Aer the parking space has been exited, a warn-

ing tone and the Ø Active Parking Assist fin-

ished, take control of vehicle

message prompt

you to take control of the vehicle. You have to

accelerate, brake, steer and change gear yourself

again.

If you do not react to the prompt to take control

of the vehicle, the system will brake the vehicle to

a standstill.

▌Pausing Active Parking Assist

WARNING Risk of accident due to objects

located above or below the detection

range of Active Parking Assist

If there are objects above or below the detec-

tion range, the following situations may arise:

Active Parking Assist may steer too early.

The vehicle may not stop in front of these

objects.

There is a danger of collision!

In these situations, do not use Active

Parking Assist.

You can interrupt the parking or exiting procedure

of Active Parking Assist by performing one of the

following actions, forexample:

Depress the brake pedal.

Open the front passenger door, a rear door,

the tailgate or the bonnet.

Apply the electric parking brake or activate

the HOLD function.

To resume the parking or exiting procedure:

gently depress the accelerator pedal.

If the electric parking brake was applied

before Active Parking Assist was activated,

depress the accelerator pedal lightly to start

the parking or exiting procedure.

Check the area around your vehicle again before

resuming a paused parking procedure. Ensure

that persons, animals or objects are no longer in

the manoeuvring range. Also, observe the system

limits of Active Parking Assist.

Driving and parking

369

F247 0072 02

▌Automatic braking function of Active Parking

Assist

WARNING Risk of accident due to objects

located above or below the detection

range of Active Parking Assist

If there are objects above or below the detec-

tion range, the following situations may arise:

Active Parking Assist may steer too early.

The vehicle may not stop in front of these

objects.

There is a danger of collision!

In these situations, do not use Active

Parking Assist.

Persons or objects detected in the manoeuvring

range could cause the vehicle to brake sharply

and interrupt the parking or exiting procedure.

The vehicle will then be held at a standstill. The

parking or exiting procedure is resumed if you

depress the accelerator pedal.

Check the area around your vehicle again before

resuming the parking or exiting procedure. Ensure

that persons, animals or objects are no longer in

the manoeuvring range. Also, observe the system

limitations of Active Parking Assist.

Manoeuvring assistant

▌Function of Drive Away Assist

Drive Away Assist can reduce the severity of an

impact when pulling away. If an obstacle is detec-

ted in the direction of travel, the vehicle's speed

is briey reduced to approx. 2 km/h. When a criti-

cal situation is detected, the symbol É

appears in the central display.

Drive Away Assist can be switched o or on in the

Manoeuvring assistance.

You can cancel an intervention by Drive Away

Assist at any time by deactivating Parking

Assist PARKTRONIC.

WARNING Risk of accident caused by limi-

ted detection performance of Drive Away

Assist

Drive Away Assist cannot always clearly iden-

tify objects and trac situations.

Always pay careful attention to the trac

situation; do not rely on Drive Away

Assist alone.

Be prepared to brake or swerve as nec-

essary, provided the trac situation per-

mits and that it is safe to take evasive

action.

Drive Away Assist is only an aid. It is not a substi-

tute for you paying attention to the surroundings.

The responsibility for safe manoeuvring and park-

ing remains with you. Make sure that no persons,

animals or objects etc. are in the manoeuvring

range.

A risk of a collision may arise in the following sit-

uations, forexample:

If the driver mixes up the accelerator and

brake pedals.

If an incorrect transmission position is

engaged.

The Drive Away Assist function is active under the

following conditions:

If Parking Assist PARKTRONIC is activated.

370

Driving and parking

F247 0072 02

If you shi the transmission position to k or

h when the vehicle is stationary.

If the detected obstacle is less than approx.

1.0 m away.

Manoeuvring assistant is activated

(/ page 372).

System limits

The performance of Drive Away Assist is limited

on inclines.

Drive Away Assist is not available if a transport

device, e.g. a trailer or bicycle rack is attached to

the trailer hitch, and the electrical connection is

correctly established.

Also, observe the system limits of Parking

Assist PARKTRONIC (/ page 360).

▌Function of Cross Trac Alert

The Cross Trac Alert function is only availa-

ble for vehicles with Blind Spot Assist.

The Cross Trac Alert function can warn drivers

of any crossing trac when reversing and

manoeuvring out of a parking space. The radar

sensors in the bumper also monitor the area adja-

cent to the vehicle. If a critical situation is detec-

ted, the L symbol appears on the central dis-

play and the vehicle can be braked automatically.

If the radar sensors are obstructed by vehicles or

other objects, detection is not possible.

The Cross Trac Alert function can be switched

on or o in the

Manoeuvring assistance menu

depending on the respective country

(/ page 372).

The Cross Trac Alert function is active under the

following conditions:

The vehicle is reversing at walking pace.

Manoeuvring assistant is activated

(/ page 372).

Observe also the instructions on Blind Spot

Assist (/ page 348).

System limits

The Cross Trac Alert function is not available on

inclines.

If a transport device, e.g. trailer or bicycle rack is

attached to the trailer hitch and the electrical

connection is correctly established, the Cross

Trac Alert function is not available.

▌Function of close-range braking

Close-range braking can prevent collisions with

pedestrians when the vehicle is reversing at slow

speeds. If the reversing camera detects a person

in the vehicle's path, the vehicle can be braked to

a standstill.

Close-range braking can intervene under the fol-

lowing conditions:

The vehicle is reversing at a speed slower than

10 km/h.

The camera image is shown in the central dis-

play (/ page 360).

Depending on the country, close-range braking

can be deactivated or activated in the

Manoeu-

vring assistance

menu (/ page 372).

When close-range braking is triggered, the symbol

º appears in red in the selected view in the

Camera & parking.

If close-range braking is not available, the

symbol º appears in grey.

Driving and parking

371

F247 0072 02

Close-range braking serves solely as an aid. It is

not a substitute for you having to pay attention to

your surroundings. The responsibility for safe

manoeuvring and parking remains with you.

Ensure that no persons, animals or objects etc.

are in the manoeuvring range.

WARNING Risk of accident caused by limi-

ted detection by the manoeuvring brake

function

The manoeuvring brake function cannot

always clearly detect people. Other obstacles

are not detected by the function.

In these cases, the function may brake unnec-

essarily or not brake at all.

Always pay careful attention to the trac

situation; do not rely on the manoeuvring

brake function alone.

Be ready to brake.

System limits

Observe the system limits of the following func-

tions:

Active Parking Assist (/ page 364)

360° camera (/ page 356)

Reversing camera (/ page 352)

The close-range braking function is not available

in the following situations:

on inclines

If transport equipment, forexample a trailer or

bicycle rack, is attached to the trailer hitch

and the electrical connection has been cor-

rectly established.

You can watch an animation on this topic via the

following link:

▌Activating/deactivating manoeuvring assis-

tance

Multimedia system:

Settings

Assistance

Parking

This function is an on-demand feature

(/ page 79).

The Activating/deactivating Manoeuvering

assistance function is not available in all

countries.

Select Manoeuvring assistance.

Activate or deactivate the desired manoeu-

vring assistance.

Trailer Manoeuvring Assist

▌Function of Trailer Manoeuvering Assist

This function is an on-demand feature

(/ page 79).

372

Driving and parking

F247 0072 02

WARNING Risk of accident due to unsuita-

ble trailers

Trailers with a steered axle or a h wheel

cannot be used with Trailer Manoeuvring

Assist.

Due to this, the trailer cannot be manoeuvred

in the desired direction and you can cause a

collision or the trailer can overturn.

Only use Trailer Manoeuvring Assist with

trailers with xed drawbars and axles.

NOTE Damage due to overhanging loads

in front or drawbar installations

The vehicle and the trailer may be damaged

during manoeuvring due to overhanging loads

at the front of the trailer or drawbar installa-

tions.

Pay attention to overhanging loads or

drawbar installations while manoeuvring.

Trailer Manoeuvering Assist assists you when

reversing with a trailer. The reversing camera

monitors the articulation angle between the vehi-

cle and the trailer and adjusts it to a specied

value. Trailer Manoeuvering Assist also limits your

speed.

Trailer Manoeuvering Assist is only an aid. It is not

a substitute for your attention to your surround-

ings. The responsibility for safe manoeuvring and

parking remains with you. Ensure that there are

no persons, animals or objects in the manoeu-

vring area while manoeuvring and parking in/exit-

ing parking spaces.

You can enter the articulation angle value directly

via the multimedia system or use a straightening

or 90° manoeuvre. When carrying out a straight-

ening manoeuvre, the system calculates the artic-

ulation angle automatically and straightens the

vehicle/trailer combination to the trailer's current

direction.

Observe the notes on towing a trailer

(/ page 375).

System limits

Observe the system limits of the following func-

tions:

Active Parking Assist (/ page 364)

360° Camera (/ page 356)

Reversing camera (/ page 352)

The system may be impaired or may not function

in the following situations:

The gradient is greater than approximately

15 %.

▌Using Trailer Manoeuvering Assist

Requirements

The vehicle has been started and is stationary.

A trailer is selected in the

Vehicle menu

(/ page 380).

A trailer has been detected.

The gradient is less than approximately 15%.

The tailgate is closed.

The electric parking brake is not applied.

The driver's seat belt is fastened.

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373

F247 0072 02

Engage reverse gear k.

Press button 1.

The camera image is shown on the central dis-

play.

The picture is illustrative and shown without a

trailer.

You can select various manoeuvres in the Trailer

Manoeuvering Assist menu. The manoeuvres

available depend on the trailer's current articula-

tion angle and length.

To adjust the articulation angle: select 4. To

change the articulation angle, swipe to the le

or right in the central display in the entire area

of the camera image.

To activate the straightening manoeuvre:

select 2.

The system calculates the articulation angle in

such a way that the direction of the trailer at

the time of activation is maintained. There is a

short countersteering movement of the trailer

while the vehicle is reversed, guiding it back to

the desired line. In this way, the vehicle is

aligned straight with the trailer, and, at the

same time, the trailer's direction is main-

tained.

To activate the 90° manoeuvre:

Align the vehicle in the same direction

(line) as the trailer.

Select (le or right)

The system calculates the articulation angle

so that a trailer can be manoeuvred into a

driveway at the smallest possible angle when

it is perpendicular to its own vehicle. Aer

turning, the vehicle is aligned again in the trail-

er's direction.

Accelerate and brake as required.

374

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Driving and parking -> Driving and driving safety systems for Your Mercedes B Class SUV Third Generation (2018-2026)

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