Get Driving and parking -> Driving and driving safety systems Guide for Mercedes CLA 4 Door Third Generation (2025-2026)

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

ble.

The interior protection and tow-away alarm

functions are not available.

The function for detecting collisions for 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:

The vehicle's non-operational time must be

extended.

The state of charge of the starter battery 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 that

assist you in driving, parking and maneuvering 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 maintaining a safe

distance to the vehicle in front, for vehicle 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 sys-

tems.

Driving systems can neither reduce the risk of an

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.

Driving and parking

167

Multifunction camera

Cameras in the outside mirrors

Front radar

Front camera

Corner radars

Ultrasonic sensors

Rear view 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.

In particular, keep the areas around the sensors

and cameras free of dirt, ice or slush

(/ page 286). The sensors and cameras must

not be covered and the detection ranges around

them must be kept free. Do not attach additional

license plate brackets, advertisements, stickers or

foils – including those that protect against stone

chippings – in the detection range of the sensors

and cameras. Make sure that there are no over-

hanging loads protruding 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 windshield and rear window

repaired at a qualied specialist workshop.

The rear view 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 169)

BAS (/ page 169)

ESP

(/ page 170)

ESP

Crosswind Assist (/ page 171)

EBD (/ page 171)

STEER CONTROL (/ page 172)

HOLD function (/ page 172)

168

Driving and parking

Hill Start Assist (/ page 173)

Start-o assist (/ page 174)

ATTENTION ASSIST (/ page 174)

Cruise control (/ page 176)

Trac Sign Assist (/ page 193)

Trac light view (/ page 196)

Suspension with adaptive damping adjustment

(/ page 201)

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 178)

Active Speed Limit Assist (/ page 182)

Route-based speed adaptation (/ page 183)

Active Brake Assist (/ page 188)

Active Steering Assist (/ page 185)

Active Emergency Stop Assist (/ page 187)

Blind Spot Assist with exit warning

(/ page 197)

Active Lane Keeping Assist (/ page 198)

Parking Package

The availability of individual functions is coun-

try- and equipment-dependent.

Rear view camera (/ page 201)

360° camera (/ page 204)

Parking Assist PARKTRONIC (/ page 208)

Active Parking Assist (/ page 212)

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 tire 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 approx. 3 mph

(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.

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.

Driving and parking

169

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 stabilization.

ESP

should only be deactivated in the

following situations.

NOTE Mercedes-AMG vehicles

Observe the notes in the Supplement.

You could otherwise fail to recognize

dangers.

The Electronic Stability Program (ESP

) can moni-

tor and improve driving stability and traction in

the following situations within physical limits:

When you pull away on wet or slippery road

surfaces.

When braking.

If the vehicle deviates from the direction desired

by the driver, ESP

can stabilize 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

more wheels have reached their 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.

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.

170

Driving and parking

Observe the following information:

Warning and indicator lamps (/ page 411)

Display messages (/ page 358)

ETS/4ETS

ETS/4ETS (Electronic Traction System) traction

control is part of ESP

and makes it possible to

pull away and accelerate on slippery roads.

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

mode will be activated (/ page 149).

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. 50 mph (80 km/h)

and 125 mph (200 km/h) when driving

straight ahead or cornering slightly.

The vehicle is stabilized by means of individual

brake application on one side.

Activating/deactivating ESP

(Electronic Stability

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.

NOTE Mercedes-AMG vehicles

Observe the notes in the Supplement.

You could otherwise fail to recognize

dangers.

Select ESP.

Select On or Off.

ESP

is deactivated if the ESP

OFF warning lamp

å lights up continuously on the driver's dis-

play.

Observe any information on warning lamps and

display messages which may be shown on the

driver's display.

Function of EBD

Electronic Brakeforce Distribution (EBD) is charac-

terized by the following:

Monitoring and regulating the brake pressure

on the rear wheels.

Improved driving stability when braking, espe-

cially on bends.

Driving and parking

171

Function of STEER CONTROL

STEER CONTROL assists you by transmitting a

noticeable steering force to the steering wheel in

the direction required for vehicle stabilization.

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

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.

172

Driving and parking

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.

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 will hold the vehicle for a short

time when you pull away on a hill in the following

circumstances:

The transmission is in position h or k.

The electric parking brake is released.

This will give 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.

Driving and parking

173

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 and the tires 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 170).

▌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 171).

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 153).

Select the sportiest available drive program

B or C(/ page 149).

Rapidly depress the accelerator pedal fully.

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 stabilize the vehicle if the vehicle starts

to skid or a wheel starts to spin.

Canceling the start-o assist

Remove your foot from the accelerator pedal.

Reactivate the ESP

ATTENTION ASSIST

▌Function of ATTENTION ASSIST

ATTENTION ASSIST helps you on long, monoto-

nous journeys, e.g. on highways and trunk roads.

If indicators of fatigue or increasing lapses in con-

centration on the part of the driver are detected,

the system will suggest 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 recuperation.

You can choose between two settings:

Standard: normal system sensitivity.

Sensitive: higher system sensitivity. The driver

is warned earlier and the attention level detec-

ted by ATTENTION ASSIST is adapted accord-

ingly.

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

174

Driving and parking

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 on 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 ATTENTION ASSIST is unable to calculate the

attention level and cannot issue a warning, the

System Suspended message appears.

If a warning is shown on the driver's display, the

MBUX multimedia system oers to search for a

rest area. You can select a rest area and start

navigation 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 speed range

between 37 mph (60 km/h) and 124 mph

(200 km/h).

If the system is not available due to a fault, the

ATTENTION ASSIST warning lamp Û will light

up permanently on the driver's 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 crosswind.

If you adopt a sporty driving style (high corner-

ing speeds or high rates of acceleration).

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 may be displayed on 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.

You unfasten your seat belt and open the driv-

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

break).

Driving and parking

175

▌Setting ATTENTION ASSIST

Multimedia system:

Settings

Assistance

ATTENTION ASSIST

Setting the sensitivity

Select Z next to ATTENTION ASSIST.

Select Standard or Sensitive.

Speed control cruise control

▌Function of cruise control

Cruise control regulates the speed to the value

selected by the driver.

If you accelerate to overtake, for example, the

stored speed is not deleted. 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 from 15 mph (20 km/h)

up to the maximum design speed.

Observe the notes on driving systems and your

responsibility; you may otherwise fail to recognize

dangers (/ page 167).

Mercedes‑AMG vehicles: cruise control is availa-

ble up to a maximum speed of 155 mph

(250 km/h).

Displays on the driver's display

Gray: cruise control is selected but not yet

active, or temporarily passive.

Green: cruise control is active.

A stored speed is shown 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 to a lower gear in good time for long and

steep downhill gradients. Take particular note of

this when driving a laden vehicle. By doing so, you

will make use of the braking eect of the engine.

This relieves the load on the brake system and

prevents 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

On slippery roads. Accelerating can cause the

drive wheels to lose traction and the vehicle

could then skid.

When visibility is poor

▌Operating cruise control

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.

Take into account the trac situation

before calling up the stored speed.

Requirements

Cruise control is selected.

ESP

must be activated, but not intervening.

176

Driving and parking

The vehicle speed is at least 15 mph

(20 km/h).

The transmission is in position h.

Steering wheel control panel for cruise control

Adopts the stored/detected speed

Deactivates cruise control

1®¯

Control panel for increasing/

decreasing speed

Activates cruise control

Deactivates cruise control

Activating cruise control

Press M.

Activating cruise control

Press ® or ¯ on control panel 1.

The current speed will be stored and main-

tained by the vehicle.

Press J.

The last stored speed will be called up and

maintained by the vehicle.

If the last stored speed has previously been

deleted, the current vehicle speed will be

stored.

When you switch o the vehicle, the last

speed stored will be deleted.

Increasing/decreasing the stored speed

To increase the stored speed: swipe upwards

from the bottom of control panel 1.

The stored speed will be increased by

1 mph (1 km/h).

To decrease the stored speed: swipe down-

wards from the top of control panel 1.

The stored speed will be decreased by

1 mph (1 km/h).

Briey press ® or ¯ on control panel

The stored speed will be increased or

decreased to the following values depending

on the unit:

mph: the next value ending in 5

km/h: the next value ending in 0

Accelerate the vehicle to the desired speed.

Press ® on control panel 1.

Adopting a detected speed

If cruise control is activated and Trac Sign

Assist has detected a trac sign with a maximum

Driving and parking

177

permissible speed and this is displayed on the

driver's display:

Press J.

The maximum permissible speed shown by the

trac sign will be stored and the vehicle will

maintain that speed.

Deactivating cruise control

Press ±.

Deactivating cruise control

Press N.

If you brake or deactivate ESP

or if ESP

intervenes, cruise control will be deactivated.

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: 15 mph (20 km/h) -

100 mph (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 148)

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

the urban speed range (except bicycles

and motorcycles)

Takes into account one-sided overtaking

restrictions on highways or multi-lane

roads with separate roadways (country-

dependent)

If the vehicle has been braked to a standstill on

multi-lane roads with separate roadways by Active

Distance Assist DISTRONIC, it can automatically

follow the vehicle in front when it drives o again,

depending on its equipment. If a critical situation

is detected when driving o, a visual and acoustic

warning is given indicating that the driver must

now take control of the vehicle. The vehicle is not

accelerated any further.

Observe the notes on driving systems and your

responsibility; you may otherwise fail to recognize

dangers (/ page 167).

178

Driving and parking

Display in the driver's display in the Assistance menu

Vehicle in front

Distance indicator

Set specied distance

Vehicle detected in front

1 is highlighted in

green. It may also be in the lane to the le of your

vehicle in situations where overtaking on the right

is not permitted (e.g. on highways).

Permanent status display

Gray: Active Distance Assist DISTRONIC

selected but not yet active.

Green speedometer, gray 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. When Active Distance Assist DISTRONIC is

passive, the status display is grayed out.

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.

When the specied distance set

3 is increased

or reduced, the h display briey appears.

On highways or high-speed major roads, the

green ç vehicle symbol is displayed cycli-

cally when the vehicle is ready to pull away.

If you depress the accelerator pedal beyond

the setting of the Active Distance Assist

DISTRONIC, the system is switched to passive

mode. The following message appears briey

on the driver's display ç Suspended.

System limits

The system may be impaired or may not function

in the following instances:

In snow, rain, fog, heavy spray, direct sunlight

or greatly varying ambient light, or if there is

glare.

If the windshield in the area of the camera is

dirty, fogged up, damaged or covered.

If the radar sensors are dirty or covered.

In parking garages 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 skid.

Do not use Active Distance Assist DISTRONIC in

these situations.

Driving and parking

179

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 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.

▌Operating Active Distance Assist DISTRONIC

Requirements

The electric parking brake is released.

ESP

is activated and is not intervening.

The transmission is in position h.

All the doors are closed.

The check on the radar sensor system has

been completed successfully.

180

Driving and parking

Adopts the stored/detected speed

Deactivates Active Distance Assist

DISTRONIC

1®¯

Control panel for increasing/

decreasing speed

Increases/decreases the specied

distance

Activates/deactivates Active Dis-

tance Assist DISTRONIC

To operate Active Distance Assist

DISTRONIC: press the respective button with

only one nger or swipe on the control panel.

Activates/deactivates Active Distance Assist

DISTRONIC

Press H.

Activating Active Distance Assist DISTRONIC

To activate without a stored speed: press

® on the upper section or ¯ on the

lower section of control panel

1 or press

J. Remove your foot from the accelerator

pedal.

To activate with a stored speed: press J.

Remove your foot from the accelerator pedal.

The last stored speed will be called up and

maintained by the vehicle.

If the stored speed has been deleted, the cur-

rent vehicle speed will be stored.

Increasing or reducing the speed

To increase the stored speed: swipe upwards

from the bottom of control panel 1.

The stored speed will be increased by

1 mph (1 km/h).

To decrease the stored speed: swipe down-

wards from the top of control panel 1.

The stored speed will be decreased by

1 mph (1 km/h).

Briey press ® on the upper section or

¯ on the lower section of control panel

The stored speed will be increased or reduced

by 5 mph (10 km/h).

Accelerate the vehicle to the desired speed.

Press ® on the upper section of control

panel

Driving and parking

181

Adopting the limit speed shown on the driver's

display

To activate Active Distance Assist DISTRONIC:

press ®, ¯ or J.

To accept the displayed speed limit: press

The limit speed shown on the driver's display

will be adopted as the stored speed. The vehi-

cle will adapt its speed to that of the vehicle in

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

limit its speed accordingly.

A speed limit shown on the driver's display

will be adopted only during travel, not when

the vehicle is stationary.

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 will still be active.

Reducing or increasing the specied distance

from the vehicle in front

Press K.

The h indicator will appear. The specied

distance will be reduced by one level.

If the lowest level is already selected, the

selection will jump to the highest level.

Deactivates Active Distance Assist DISTRONIC

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 ±.

If you brake or deactivate ESP

or if ESP

intervenes, Active Distance Assist DISTRONIC

will be deactivated.

▌Function of Active Speed Limit Assist

If a change in speed limit is detected and the

automatic adoption of speed limits is switched on,

this will automatically be adopted as the stored

speed (/ page 184). Speed limits below 12 mph

(20 km/h) will not be adopted.

The vehicle's speed will be adjusted when the

vehicle is level with the trac sign at the latest. In

the case of signs indicating entry into an urban

area, the speed will be adapted according to the

speed permitted within the urban area. The speed

limit indicator on the driver's display will always

be updated when the vehicle is level with the traf-

c sign.

If you are driving on a German freeway and there

is no speed limit, the system will use the speed

stored for a stretch of road with no speed limit as

182

Driving and parking

the set speed. If you do not alter the stored speed

on a stretch of road with no speed limit, the rec-

ommended speed of 80 mph (130 km/h) will be

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 take

the road condition or current weather and trac

conditions into account. Adjust your speed

accordingly as and when necessary.

Observe the notes on driving systems and your

responsibility; you may otherwise fail to recognize

dangers (/ page 167).

System limits

The system limits of Trac Sign Assist apply to

the detection of trac signs (/ page 193).

Speed limits below 12 mph (20 km/h) will not

automatically be adopted by the system as the

stored speed. Temporary speed restrictions (e.g.

for a certain time or due to weather conditions)

cannot be properly detected by the system.

Adjust your speed in these situations.

WARNING Risk of accident due to adjust-

ment of speed by Active Speed Limit

Assist.

The speed adopted by the Active Speed Limit

Assist may be too high or incorrect in individ-

ual cases:

At limit speeds below 12 mph (20 km/h)

In wet or foggy conditions

Ensure that the speed being driven

always complies with the trac laws.

Adjust the speed being driven to the cur-

rent trac and weather conditions.

▌Function of route-based speed adaptation

When Active Distance Assist DISTRONIC is activa-

ted, the vehicle speed will be adapted accordingly

to the route events ahead. Depending on the drive

program selected, the vehicle will negotiate a

route event ahead in an energy-saving, comforta-

ble or dynamic manner. When the route event has

been passed, the vehicle will accelerate again to

the stored speed. The set distance to the vehicle

in front, vehicles detected ahead and speed

restrictions ahead will be taken into account.

Route-based speed adaptation can be activated in

the multimedia system (/ page 184).

The following route events will be taken into

account:

Bends

Trac circles

T-intersections

Turns and exits

Also, the speed will be reduced if the turn signal

indicator is switched on and one of the following

situations is detected:

Turning o at intersections

Driving in slowing-down lanes

Driving in 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 intersections, trac circles

Driving and parking

183

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 will be carried out automatically. If the

turn signal indicator is switched on, the selected

route will be conrmed and further speed adjust-

ment will be activated.

Speed adjustment will be canceled in the follow-

ing cases:

If the turn signal indicator is switched o

before the route event and it is therefore

assumed that the route event is not relevant

to 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, e.g. at toll stations

Wet road surfaces, snow or ice

The driver will need to intervene accordingly in

these situations.

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:

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 will be adjusted depending on the route

events ahead.

184

Driving and parking

If one of the following systems is activated,

the detected speed can be manually adopted

as the speed limit:

Active Distance Assist DISTRONIC

Variable limiter

Further information on speed adjustment

(/ page 183).

Active Steering Assist

▌Function of Active Steering Assist

Active Steering Assist is available only up to a

speed of 100 mph (160 km/h). The system helps

you to stay in the center 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. If necessary,

Active Steering Assist can then also provide

assistance when you are driving outside the

center of the lane (e.g. 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

Gray: activated and passive

Green: activated and active

Red: system limits detected

White, red hands: "hands on the steering

wheel" prompt

During the transition from active to passive

status, the Ø symbol is shown as enlarged

and ashing. Once the system is passive, the

Ø symbol is shown as gray in the driver's

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 187).

The warning is not issued or is stopped as soon as

the system detects that the driver is touching or

steering the steering wheel.

Driving and parking

185

Touch detection may be limited or may not func-

tion if there is no direct contact between hand

and steering wheel (e.g. if you are wearing gloves

or if there is a steering wheel cover on the steer-

ing 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 recognize

dangers (/ page 167).

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 may not function

in the following instances:

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

fog, heavy spray, greatly varying ambient light

or strong shadows on the road.

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

direct sunlight or reections.

Insucient road illumination.

The windshield is dirty, fogged up, damaged or

covered in the vicinity of the camera, e.g. by a

sticker.

No, or several, unclear lane markings are pres-

ent for one lane, or the markings change

quickly (e.g. in a construction area or at inter-

sections).

The lane markings are worn away, dark or cov-

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

If the distance to the vehicle in front is too

short and thus the lane markings cannot be

detected.

The road is narrow and winding.

There are obstacles on the lane or projecting

out into the lane, such as object markers.

The system does not provide assistance in the fol-

lowing conditions:

On tight bends and when turning.

When crossing intersections.

At trac circles or toll stations.

When the tire 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.

▌Activating/deactivating Active Steering Assist

Requirements

ESP

is activated, but is not intervening.

186

Driving and parking

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 available only in com-

bination with the Driving Assistance Package.

Active Emergency Stop Assist monitors the steer-

ing wheel and the accelerator and brake pedals. If

the system detects a lack of driver activity and the

vehicle threatens to leave its 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. 37 mph

(60 km/h).

If the vehicle is threatening to leave its lane, a

warning is issued in the following cases:

The driver does not touch the steering wheel

for an extended period of time or no steering

movement can be measured for an extended

period of time (depending on the vehicle

equipment).

Neither the accelerator nor the brake pedal is

being depressed.

If Active Steering Assist is switched on and

active, only the steering wheel is monitored by

the system. If the driver does not touch the

steering wheel for an extended period of time,

a warning may be given despite pedal actua-

tion.

Also observe the instructions on touch detec-

tion as part of Active Steering Assist

(/ page 185).

Active Emergency Stop Assist issues the following

warnings in order:

Display

1 appears on the driver's display.

In addition to display

1, a warning tone

sounds.

The message

Initiating Emergency Stop

appears on the driver's display, a continuous

warning tone sounds, the vehicle no longer

accelerates and, if necessary, slight belt ten-

sioning is carried out.

The vehicle speed is reduced in increments

until it is at a standstill. Sharp brake impulses

are also produced.

When automatic braking is initiated, Active Dis-

tance Assist DISTRONIC is deactivated. Depend-

ing on the country, the hazard warning light sys-

tem is also switched on.

When the vehicle has been brought to a standstill:

The vehicle is secured with the electric park-

ing brake.

The vehicle is unlocked.

Driving and parking

187

If possible, an emergency call is placed to the

Mercedes-Benz emergency call center.

Before message

Initiating Emergency Stop

appears, you can cancel Active Emergency Stop

Assist by steering.

Aer message

Initiating Emergency Stop has

appeared, you can cancel Active Emergency Stop

Assist as follows:

Accelerating or braking: the emergency stop is

canceled, but the warning message, warning

tone and power steering remain active.

Steering: power-assisted steering is canceled,

the warning message and warning tone remain

active and the vehicle continues to be braked.

Steering, acelerating or braking: The emer-

gency stop and electric power steering are

canceled. The warning message and warning

tone are canceled.

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 178)

Active Steering Assist (/ page 185)

Active Lane Keeping Assist (/ page 198)

Active Brake Assist (/ page 188)

Active Emergency Stop Assist is inactive in the fol-

lowing case:

Active Lane Keeping Assist and Active Steer-

ing Assist are deactivated.

Active Brake Assist

▌Function of Active Brake Assist

Active Brake Assist consists of the following func-

tions:

Collision warning

Autonomous braking function

Situation-dependent brake force boosting

Vehicles with Driving Assistance Package:

Active Evasion Assist

Active Brake Assist can help you to minimize 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 will sound and the Active

Brake Assist warning lamp L will light up.

188

Driving and parking

Display on the driver's display in the Assistance

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 will appear in

front of the vehicle.

Vehicles with PRE-SAFE

: depending on the

country, an additional haptic warning will

occur in the form of slight, repeated tension-

ing of the seat belt on the driver's side.

If you do not react to the warning, autonomous

braking can be initiated in critical situations.

In particularly critical situations, Active Brake

Assist can also initiate autonomous braking

directly. In this case, the warning tone and the

distance warning lamp L will occur at the

same time as the brake application.

If you apply the brakes yourself in a critical situa-

tion or apply the brakes during autonomous brak-

ing, situation-dependent brake force boosting will

occur. The brake pressure increases up to maxi-

mum full-stop braking if necessary.

If autonomous braking, situation-dependent brake

force boosting or an evasive maneuver has been

carried out, pop-up 1 will appear on the driver's

display. It will disappear automatically aer a

short time.

If the autonomous braking function or situation-

dependent brake force boosting is triggered, pre-

ventive measures for occupant protection (PRE-

SAFE

) 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.

Driving and parking

189

Be prepared to brake or swerve if neces-

sary.

If Active Brake Assist is deactivated or the range

of functions is restricted, e.g. due to activation of

another driving system, the Active Brake Assist

warning lamp ê will appear on the driver's dis-

play.

If the system is unavailable due to dirty or dam-

aged sensors or due to a malfunction, or if the

range of functions is restricted, the Active Brake

Assist warning lamp Ó will appear on the driv-

er's display.

Also observe the system limits of Active Brake

Assist.

Collision warning

The collision warning can aid you in the following

situations with an intermittent warning tone and

the L warning lamp:

At speeds up to approximately 155 mph

(250 km/h) when approaching vehicles ahead

At speeds up to approximately 50 mph

(80 km/h) when approaching stationary vehi-

cles, pedestrians walking in the direction of

travel and cyclists ahead

At speeds up to approximately 43 mph

(70 km/h) when approaching crossing pedes-

trians and cyclists

At speeds up to approximately 37 mph

(60 km/h) when approaching stationary

pedestrians and cyclists

Autonomous braking function

From a speed of approximately 4 mph (7 km/h),

the autonomous braking function may intervene in

the following situations:

At speeds up to approximately 155 mph

(250 km/h) when approaching vehicles ahead

At speeds up to approximately 50 mph

(80 km/h) when approaching cyclists ahead,

pedestrians walking in the direction of travel

and stationary vehicles

At speeds up to approximately 43 mph

(70 km/h) when approaching crossing pedes-

trians and cyclists

Situation-dependent brake force boosting

From a speed of approximately 4 mph (7 km/h),

situation-dependent brake force boosting may

intervene in the following situations:

At speeds up to approximately 155 mph

(250 km/h) when approaching vehicles ahead

At speeds up to approximately 50 mph

(80 km/h) when approaching cyclists ahead,

pedestrians walking in the direction of travel

and stationary vehicles

At speeds up to approximately 43 mph

(70 km/h) when approaching crossing pedes-

trians and cyclists

At speeds up to approximately 37 mph

(60 km/h) when approaching stationary

pedestrians and cyclists

Canceling a brake application by Active Brake

Assist

You can cancel a brake application by Active

Brake Assist at any time:

by sharply depressing the accelerator pedal or

with kickdown

190

Driving and parking

You can cancel support from Active Evasion Assist

at any time by steering, accelerating or braking.

Active Evasion Assist may intervene in the follow-

ing speed ranges:

From a speed of approximately 18 mph

(30 km/h) up to approximately 50 mph

(80 km/h) when approaching stationary vehi-

cles, pedestrians or cyclists

From a speed of approximately 18 mph

(30 km/h) up to approximately 50 mph

(80 km/h) when approaching pedestrians

walking in the direction of travel and cyclists

in front

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,

particularly in the following situations:

In snow, rain, fog, heavy spray, direct sunlight

or greatly varying ambient light, or if there is

glare.

If the sensors are dirty, fogged up, damaged or

covered.

If the sensors are impaired due to interference

from other radar sources, e.g. strong radar

reections in parking garages.

If a loss of tire pressure or a defective tire 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.

due to special clothing or other objects.

When lane markings are missing or hard to

see.

When the road's course is not more or less

straight.

On bends with a tight radius.

If the driver's seat belt is not fastened.

▌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 Active Brake Assist is deactivated, the dis-

tance warning function, the collision warning, the

autonomous braking function and Active Evasive

Steering Assist (with Driving Assistance Package)

will be deactivated.

192

Driving and parking

If Active Brake Assist is deactivated, the æ

symbol will appear on the status bar of the

driver's display, and the system will be reacti-

vated the next time the vehicle is started.

Setting the timing of warnings

Select Z next to Active Brake Assist.

Select Early, Medium or Late.

Trac Sign Assist

▌Function of Trac Sign Assist

This function is an on-demand feature

(/ page 21).

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 assists you by displaying

detected speed limits and overtaking restrictions

on the driver's display. The maximum permissible

speed 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 can also detect and analyze trac

signs with a restriction indicated by an additional

sign (e.g. when wet).

Trac Sign Assist portrays only selected signs on

the driver's display. Actual trac signs and speed

limits have priority over trac signs and speed

limits shown on the driver's display.

Also observe 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 recognize

dangers (/ page 167).

Displays on the driver's display

Permissible speed

Permissible speed when there is a restriction

Additional sign with restriction

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

the driver's display simultaneously. The system

always prioritizes displaying speed limits. No more

than one trac sign with a maximum permissible

speed can be shown on the head-up display. If

two speed signs are shown on the driver's display,

e.g. when restrictions are detected, the value of

le-hand speed limit

1 is always transmitted to

cruise control or Active Distance Assist

Driving and parking

193

DISTRONIC for adoption and is shown on the

head-up display.

Important information from other systems can

lead to the trac signs fading out for a short

time.

Examples of trac signs that can be displayed

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

lowing trac signs

speed limitations

End of the speed limit

overtaking restrictions

Play streets

Recommended speeds

Trac Sign Assist can detect the following addi-

tional signs

3 and, if necessary, analyze the rele-

vance of the restrictions using other vehicle sen-

sors:

When wet

Slippery road surfaces

In fog

Temporary restrictions

Exits

Restrictions for car/trailer combinations

Trac Sign Assist also uses data from the digital

street map in the navigation system. When you

leave or enter a municipality or change roads, on

a highway on- or o-ramp, for example, or aer

you turn at an intersection, the display on the

driver's display can thus be updated without a

trac sign having been detected.

Regularly update the digital road map of the

navigation system to enable Trac Sign Assist

to work optimally.

Depending on vehicle equipment and country, the

system can also display speed restrictions ahead

on the driver's display and on the head-up display.

The driver's display can also show the distance to

an upcoming lower limit speed. For this purpose,

information from the digital road map of the navi-

gation system is used. The Assistance menu can

also display a dynamic visualization of the speed

limits ahead.

If Trac Sign Assist cannot determine the cur-

rently applicable maximum permissible speed

(e.g. due to missing signs), the following display

appears on the driver's display:

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

If the vehicle is in a country where Trac Sign

Assist is not supported, this is displayed continu-

ously.

If Trac Sign Assist is temporarily or permanently

unavailable due to a technical fault or if the wind-

shield is dirty, the Trac Sign Assist warning lamp

ê will appear on the driver's display.

194

Driving and parking

Please also note the information on the Trac

Sign Assist display messages (/ page 358).

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 in the multimedia

system by how much the maximum permitted

speed may be exceeded before a warning is given.

You can switch o the warning or set whether the

warning should be visual (by ashing the trac

sign on the driver's display) or visual and audible.

The selected setting is conrmed by an indication

on the driver's display.

Warning only visual

Warning o

The type, duration and deployment thresholds

of the speed warning as well as the possibility

of setting the deployment thresholds from

which the warning is to be triggered are sub-

ject to the country-specic legislation of the

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, for example on highway on-ramps or

one-way streets.

Warning at pedestrian crossings: if you approach

pedestrian crossings, provided that pedestrians

are in the danger zone or are moving towards it,

Trac Sign Assist can warn you up to a speed of

approximately 44 mph (70 km/h).

System limits

The system may be impaired or may not function

particularly in the following situations:

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 windshield in the vicinity

of the multifunction camera or if the camera is

fogged up, damaged or obscured.

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

for example, they are dirty, obscured, faded,

iced over, damaged, inconveniently positioned,

insuciently illuminated or distorted.

Driving and parking

195

Active trac signs with LED displays may not

be detected correctly or at all due to technical

factors, such as transmission frequency.

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 in

construction sites, at exits and driveways, 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 guidance

is country-specic and deviates from the route

guidance of the navigation system, e.g. in or

aer road works

Aer sharp turns and tight bends, when 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.

▌Setting Trac Sign Assist

Multimedia system:

Settings

Assistance

Traffic Sign Assist

Activating or deactivating the speed warning

Switch o Speed Limit Warning.

The speed warning remains o according to

country-specic legislation until the next time

the vehicle is switched on or o.

Change the type of speed 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.

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.

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.

196

Driving and parking

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

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 130 

(40 m) behind and 10  (3 m) next to your vehicle.

If a vehicle is detected from a speed of approx-

imately 8 mph (12 km/h) and this vehicle subse-

quently enters the monitoring range directly next

to your vehicle, the warning lamp in the outside

mirror will light up red.

Status display in the driver's display

Gray: the system is activated but not

operational.

Green: the system is activated and opera-

tional.

If a vehicle is detected close to your vehicle and

you switch on the turn signal indicator in the cor-

responding direction, a double warning tone will

sound and the red warning lamp in the outside

mirror will ash. If the turn signal indicator

remains switched on, all other detected vehicles

will be 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 recognize

dangers (/ page 167).

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.

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.

Driving and parking

197

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

will be indicated in the outside mirror. If a vehicle

occupant opens the door on the side with the

warning, a warning tone will sound and the warn-

ing lamp in the outside mirror will start to ash.

This additional function is available only 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 limited in the following

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 you are driving

alongside long vehicles, such as trucks, for a pro-

longed time.

Blind Spot Assist is not operational when reverse

gear is engaged.

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/deactivating Blind Spot Assist

Multimedia system:

Settings

Assistance

Collision Avoidance

Switch Blind Spot Assist on or o.

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 the multifunction

camera (/ page 167) and can warn you before

you leave your lane unintentionally. The system

can guide you back into your lane by means of a

lane-correcting steering intervention and will also

198

Driving and parking

issue a warning via haptic feedback through the

steering wheel.

Active Lane Keeping Assist is available in the

speed range between approximately 37 mph

(60 km/h) and 124 mph (200 km/h).

The system may intervene in the following situa-

tions:

Active Lane Keeping Assist detects a lane

marking.

One of your front wheels goes over this lane

marking.

If you activate the turn signal indicator, no steer-

ing intervention will occur on the corresponding

side.

If you leave the lane without activating the turn

signal indicator, but danger of a collision with a

moving obstacle in your lane is detected, no steer-

ing intervention will occur.

Vehicles with Blind Spot Assist or Driving Assis-

tance Package: if the system detects an obstacle

(e.g. another vehicle) in the adjacent lane, a steer-

ing intervention will occur regardless of the turn

signal indicator.

Display 1 will appear on the driver's display and

a warning tone will sound in the following situa-

tions:

A steering intervention by Active Lane Keeping

Assist lasts longer than approximately ten sec-

onds.

The system carries out two or more steering

interventions within approximately three

minutes without any steering intervention from

the driver.

In the Active Lane Keeping Assist settings, you

can set the sensitivity of the system and the level

of support. Additionally, you can set whether the

system should react to broken lane markings or

only continuous lane markings (/ page 201).

Status displays for Active Lane Keeping Assist

White: Active Lane Keeping Assist is deac-

tivated.

If ESP

is deactivated or a tire pressure

loss warning is displayed, Active Lane

Keeping Assist will automatically be deacti-

vated.

Yellow: there is a malfunction. Please also

observe the display messages.

Gray: Active Lane Keeping Assist is activa-

ted, but not operating.

Green: Active Lane Keeping Assist is acti-

vated and operating.

Red: Active Lane Keeping Assist has gui-

ded you back into your lane with a lane-

correcting steering intervention. The status

display will ash if there is also a haptic

warning via the steering wheel. The lane

marking will be shown in red only on the

side for which there is a warning.

Driving and parking

199

Display on the driver's display in the Assistance

If the front wheel of the vehicle drives over a

detected lane marking, this will be highlighted in

red on the driver's display in the

Assistance

menu.

System limits

In the following situations, a lane-correcting steer-

ing intervention may not occur but rather a warn-

ing may be given via the steering wheel, depend-

ing on the situation:

If you clearly and actively steer, brake or

accelerate.

If a driving safety system intervenes, 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.

The system may be impaired or may not function,

particularly in the following situations:

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

mination of the road, highly variable shade

conditions, rain, snow, fog or heavy spray.

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

sun or reections.

If there is dirt on the windshield in the vicinity

of the multifunction camera or if the camera is

fogged up, damaged or obscured.

If there is dirt on the bumper in the area of the

radar sensors, or if they 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 thus the lane markings cannot be

detected.

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

branch o, cross one another or merge.

If the road is very narrow and winding.

Observe the notes on driving systems and your

responsibility; you may otherwise fail to recognize

dangers (/ page 167).

▌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.

The settings aer engine start are country-

specic.

200

Driving and parking

▌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 selected setting will be adopted the next

time the vehicle is started.

The standard setting of this function is coun-

try-dependent.

Activating or deactivating assistance on dashed

lane markings

Select Advanced Support.

The last selected setting will be adopted the next

time the vehicle is started.

The standard setting of this function is coun-

try-dependent.

This function must be activated for Emer-

gency Stop Assist to be fully available.

Further information on Emergency Stop Assist

(/ page 187)

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 set using DYNAMIC

SELECT.

Rear view camera

▌Function of the rear view camera

The rear view camera is only an aid. It is not a

substitute for your attention to the surroundings.

The responsibility for safe maneuvering and park-

ing remains with you. Make sure that there are no

persons, animals, objects, etc. in the maneuvering

area while maneuvering and parking.

The area behind the vehicle is displayed as a

mirror image, as in the inside rearview mirror.

Vehicles without Parking Package

The following camera views are available on the

central display:

Driving and parking

201

Standard view

Guide lines at a distance of approximately

1.6  (0.5 m), 3.3  (1.0 m), 5  (1.5 m) and

9.9  (3.0 m) from the rear area

Lane marking the course the tires will take

with the current steering angle (dynamic)

Driven surface depending on the current

steering angle (dynamic)

Guide line at a distance of approximately

1.0  (0.3 m) from the rear area

Wide-angle view

Pedestrian braking function

This function is available only in vehicles with-

out the Parking Package. Vehicles with the

Parking Package are equipped with maneuver-

ing assistant functions (/ page 217).

The pedestrian braking function can prevent colli-

sions with pedestrians when the vehicle is back-

ing up at slow speeds. If the rear view camera

detects a person in the vehicle path, the vehicle

can be braked to a standstill.

The pedestrian braking function can intervene

under the following conditions:

The vehicle is backing up at a speed below

9 mph (15 km/h).

The camera image is shown on the central dis-

play.

If automatic braking is triggered, the º symbol

will appear in red in the camera image.

The º

Pedestrian! For Emerg. Braking Off:

Tap Here

message will also appear.

The driver can close or ignore this message. The

pedestrian braking function will then remain

active. If the driver taps the message, the pedes-

trian braking function will briey be deactivated.

The pedestrian braking function will be activated

again in the following cases:

The vehicle is driving forwards at a speed

above 10 mph (16 km/h).

The vehicle is switched o and back on again.

If the function is not available or is deactiva-

ted, the º symbol will appear in gray in

the camera image.

202

Driving and parking

The pedestrian braking function is only an aid. It is

not a substitute for your attention to the surround-

ings. The responsibility for safe maneuvering and

parking remains with you. Make sure that no per-

sons, animals, objects, etc. are in the maneuver-

ing 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 the rear view camera is not operational

Be aware of the system limitations of the rear

view camera.

Vehicles with Parking Package

The following camera views are available on the

central display:

Camera Views menu on the 11.9″ central display

(top view)

Menu Parking Assistance

Rear-view camera with top view

Wide-angle view

Activating/deactivating Parking Assist

PARKTRONIC (/ page 211)

Warning display of Parking Assist

PARKTRONIC (/ page 208)

Guide lines at a distance of approximately

1.6  (0.5 m), 3.3  (1.0 m), 5  (1.5 m) and

9.9  (3.0 m) from the rear area

Lane marking the course the tires will take

with the current steering angle (dynamic)

Driven surface depending on the current

steering angle (dynamic)

Guide line at a distance of approximately

1.0  (0.3 m) from the rear area

When Active Parking Assist is active, the lanes

7 are displayed in green (/ page 212).

System limits

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

tem Inoperative

message will appear on the cen-

tral display.

The rear view camera will not function or will func-

tion only partially in the following situations:

You are driving forwards at a speed greater

than approximately 10 mph (16 km/h).

The trunk lid is open.

Driving and parking

203

The weather conditions are poor, e.g. heavy

rain, snow, fog, storm or spray.

The ambient light is poor (e.g. at night or if

light is shining into the camera).

The camera lens is obstructed, dirty or fogged

up. Observe the notes on cleaning the rear

view camera (/ page 286).

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 rear view 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

attachments on the vehicle (e.g. license 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. In this case,

pay particular attention.

Have the display repaired or replaced if,

forexample, pixel errors considerably restrict

its use.

Also observe the information on vehicle sensors

and cameras (/ page 167).

360° camera

▌Function of the 360° Camera

The 360° Camera is a system that consists of

four cameras which cover the immediate sur-

roundings of the vehicle. The cameras assist you

when you are parking, for example, or at exits with

reduced visibility.

The 360° camera includes the following cameras

and evaluates their images:

Rear view camera

Front camera

Two outside mirror cameras

The cameras are only an aid and may show a dis-

torted view of obstacles, show them incorrectly or

not show them at all. They are not a substitute for

your attention to the surroundings. The responsi-

bility for safe maneuvering and parking remains

with you. Make sure that there are no persons,

animals, objects, etc. in the maneuvering area

while maneuvering and parking.

The following camera views are available on the

central display:

Camera Views menu overview

Menu Parking Assistance

Top view with image from the front camera

Panorama view

Top view with image from the rear view cam-

era

3D view, le-hand side of the vehicle

204

Driving and parking

3D view, right-hand side of the vehicle

3D auto view

Trailer view (equipment-dependent)

Activating/deactivating Parking Assist

PARKTRONIC (/ page 211)

To set the GPS activation point

In all views, the Parking Assist PARKTRONIC

warning display is shown (/ page 208).

Function of the guide lines

Guide lines at a distance of approximately

1.6  (0.5 m), 3.3  (1.0 m), 5  (1.5 m) and

9.9  (3.0 m) from the rear area

Lane marking the course the tires will take

with the current steering angle (dynamic)

Driven surface depending on the current

steering angle (dynamic)

Guide line at a distance of approximately

1.0  (0.3 m) from the rear area

When Active Parking Assist is active, lanes

and guide lines are displayed in green instead

of yellow (/ page 212).

Top view with image from the front or rear view cam-

era

Warning display of Parking Assist

PARKTRONIC (/ page 208)

Your vehicle from above

Lane indicating the route the vehicle will take

at the current steering angle

WARNING Risk of accidents due to

objects not being displayed or being dis-

played in a distorted manner

Due to the projection of the cameras, objects

in the 3D views may be strongly distorted or

not displayed at all.

Driving and parking

205

Make sure that there are no persons,

animals or objects etc., in the maneuver-

ing area while maneuvering and parking.

NOTE Risk of accident due to objects

being severely distorted in the display or

not displayed at all

Due to the projection of the cameras, objects

in the 3D views may be severely distorted

when displayed or not displayed at all.

Make sure that there are no persons,

animals or objects etc. in the maneuver-

ing area while maneuvering and parking.

3D view, le/right-hand side of the vehicle

In the 3D view, le/right-hand side of the vehicle,

the virtual camera moves to respective side of the

vehicle

2. When you change the transmission

position, the view is automatically adapted. In

addition, top view

1 will be displayed with the

Parking Assist PARKTRONIC warning display.

The area behind the vehicle is not displayed

as a mirror image as is usual in the 3D views.

3D auto view

Display of Parking Assist PARKTRONIC

(/ page 208)

Guide lines

In the 3D auto view, the virtual camera moves to

the standard perspective, facing forward from the

rear above the roof. The view changes automati-

cally when approaching obstacles.

If you touch the touchscreen, the view changes to

the 3D view with free rotation. You can turn, tilt

and zoom the views by touch.

206

Driving and parking

Wide-angle view

Display of Parking Assist PARKTRONIC

(/ page 208)

Top view with image from the rear view cam-

era

Wide-angle view

If the top view with image from the rear view cam-

era is displayed, switch to the wide-angle view

with icon

2 indented to the le. When the wide-

angle view is displayed, switch back to the respec-

tive top view.

System limits

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

tem Inoperative

message will appear on the cen-

tral display.

WARNING Risk of accident due to restric-

tions in the function of the 360° camera

If the function of the 360° camera is restric-

ted, there is a risk of collision with people or

objects.

Do not use the 360° camera in the event

of function restrictions.

Make sure that there are no persons,

animals or objects etc., in the maneuver-

ing area while maneuvering 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 10 mph (16 km/h).

The doors are open.

An outside mirror is not completely folded out.

The trunk lid is open.

The weather conditions are poor, e.g. heavy

rain, snow, fog, storm or spray.

The ambient light is poor (e.g. at night or if

light is shining into the camera).

The camera lens is obstructed, dirty or fogged

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

era (/ page 286).

If cameras or vehicle components in which the

cameras are installed are damaged. In this

event, have the cameras, their positions and

their setting checked at a qualied specialist

workshop.

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

attachments on the vehicle (e.g. license plate

bracket or bicycle rack).

Driving and parking

207

The contrast of the display may be impaired

by abrupt, direct sunlight or by other light

sources, e.g. when you are driving out of a

garage. In this case, pay particular attention.

Have the display repaired or replaced if,

forexample, pixel errors considerably restrict

its use.

Also observe the information on vehicle sensors

and cameras (/ page 167).

▌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 204).

▌Selecting a view for the 360° camera (reverse

gear)

Engage reverse gear.

Select the desired view in the multimedia sys-

tem (/ page 204).

▌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 shows you the distance

between the vehicle and a detected obstacle visu-

ally and audibly.

208

Driving and parking

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 you are driving by them. If you steer

in the direction of a detected obstacle and there

is a risk of a lateral collision, a warning is issued.

The passive side impact protection can be activa-

ted and deactivated via the multimedia system

(/ page 212).

In order for front or rear obstacles to the side to

be displayed, the vehicle must rst travel a dis-

tance of at least half a vehicle length. Once the

vehicle has traveled one vehicle length, obstacles

on all sides can be shown.

Parking Assist PARKTRONIC is only an aid. It is

not a substitute for your attention to the surround-

ings. The responsibility for safe maneuvering and

parking remains with you. Make sure that there

are no persons, animals or objects in the maneu-

vering area while maneuvering and parking in/

exiting parking spaces.

Displays in the central display

Vehicles with 360° camera

Vehicles with rear-view camera

Front and rear ready for display

All sides ready for display

All sides ready for display and obstacle detec-

ted

As soon as Parking Assist PARKTRONIC is ready

for display, the respective areas

1 to 3 of the

display are shown in blue.

The color of the display changes depending on the

distance to the detected obstacle:

Blue: > 3.3  (1 m) (no obstacles detected)

Yellow: approximately 3.3  (1 m) - 2.3 

(0.7 m)

Driving and parking

209

Orange: approximately 2.3  (0.7 m) - 1.3 

(0.4 m)

Red: <1.3  (0.4 m)

Vehicles with 360° camera: the boundary line

shis dynamically depending on the position and

distance of the obstacles detected.

Depending on the distance to the obstacle detec-

ted, an intermittent warning tone also sounds. 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 3.3  (1 m), in the

standard setting only from 1.3  (0.4 m).

Vehicles with 360° camera

Vehicles with rear-view camera

If you are not in the

Camera & Parking menu and

an obstacle in the vehicle path is detected, pop-

up window

1 appears on the central display if

the following requirements are met:

Vehicles without Active Parking Assist: when

driving no faster than 8 mph (12 km/h).

Vehicles with Active Parking Assist: when driv-

ing no faster than 11 mph (18 km/h).

Optionally, obstacles detected by Parking Assist

PARKTRONIC from a distance of approximately

3.3  (1.0 m) in front 2 and 2.3  (0.7 m) on the

sides

3 can also be displayed on the head-up

display.

System limits

Parking Assist PARKTRONIC does not necessarily

take into account the following obstacles:

Obstacles below the detection area, e.g. per-

sons, animals or objects.

Obstacles above the detection area, e.g. pro-

jecting loads, overhangs or loading ramps on

trucks.

210

Driving and parking

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:

Rear-view camera (/ page 201)

360° camera (/ page 204)

Observe the information on vehicle sensors and

cameras; otherwise the system cannot function

properly (/ page 167).

Problems with Parking Assist PARKTRONIC

If the Parking Assist PARKTRONIC display lights

up red for approximately three seconds then goes

out, and the é symbol appears on the driver's

display, the system may have been deactivated

due to signal interference. Start the vehicle again

and check if Parking Assist PARKTRONIC is work-

ing 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 286).

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 during parking or

maneuvering due to objects at close

range

Parking Assist PARKTRONIC may not detect

certain objects close to the vehicle.

When parking or maneuvering, look out

in particular for objects that are under-

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

pots or drawbars. Otherwise, the vehicle

or other objects could 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, Park-

ing Assist PARKTRONIC 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.

Driving and parking

211

▌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.

Audio Fadeout

select and Audio Fadeout

When in 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.

Switch Side Warning on or o.

Active Parking Assist

▌Function of Active Parking Assist

Active Parking Assist is an electronic parking

assistance system that uses ultrasound with the

assistance of the rear-view camera and 360°

Camera. When you are driving forwards up to

approximately 22 mph (35 km/h), the system

automatically measures parking spaces on both

sides of the vehicle.

Active Parking Assist is only an aid. It is not a sub-

stitute for your attention to the surroundings. The

responsibility for safe maneuvering and parking

remains with you. Make sure that no persons, ani-

mals, objects, etc. are in the maneuvering range.

Active Parking Assist oers the following func-

tions:

Vehicles with rear-view camera

Parking in parking spaces parallel to the road

Backing up into parking spaces perpendicular

to the road

The parking space can be freely selected. The

vehicle will be parked in reverse.

Vehicles with 360° Camera

Parking in parking spaces parallel to the road

Parking in parking spaces perpendicular to the

road (optionally either forwards or in reverse)

Parking in parking spaces that can be detec-

ted as such only due to markings (e.g. at the

roadside)

Exiting parking spaces if you have parked

using Active Parking Assist

The parking space can be freely selected.

Depending on the location of the parking space,

the parking direction (forwards or in reverse) can

also be selected as desired.

If Active Parking Assist is available, the Ç mes-

sage will appear on the driver's display. When the

system detects parking spaces, È will appear.

212

Driving and parking

The arrows show on which side of the road free

parking spaces are located. These will then be

shown on the central display.

When Active Parking Assist is activated, the turn

signals will be activated based on the calculated

path of your vehicle. When you are entering or

exiting a parking space, the procedure will be

assisted by acceleration, braking, steering and

gear changes.

To start the parking procedure, press the c

button (/ page 214).

Active Parking Assist will be canceled in the fol-

lowing situations:

You press the c button again.

You begin steering.

You engage park position j.

You apply the electric parking brake.

ESP

intervenes.

You open the driver's door.

System limits

Active Parking Assist will not be available if the

exterior lighting is malfunctioning.

Objects that are above or below the detection

range of Active Parking Assist (e.g. protruding

loads, overhangs or loading ramps of trucks or

boundaries of parking spaces) will not be detec-

ted when the parking space is measured. These

will also then not be taken into account when the

parking procedure is calculated. In some circum-

stances, Active Parking Assist may therefore

guide you into the parking space prematurely or

brake too late.

Certain environmental conditions (e.g. snowfall or

heavy rain) may lead to a parking space being

measured inaccurately. 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, high-grip

ground.

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 parking spaces on

unsuitable surfaces).

Do not use Active Parking Assist in the following

situations:

In extreme weather conditions such as ice,

packed snow or in heavy rain.

When transporting a load that protrudes

beyond the vehicle.

Driving and parking

213

If the parking space is on a steep downhill or

uphill gradient.

When snow chains are installed.

Directly aer a tire change or when spare tires

are installed.

If the tire pressure is too low or too high.

On steep inclines of more than approximately

15%.

▌Parking with Active Parking Assist

Press button 1.

Parking assistance menu (example)

Select the 2 Parking Assistance menu.

Parking spaces

3 detected by the system will be

shown on the central display.

214

Driving and parking

Parking assistance menu (example)

When the vehicle is stationary, indicated vehicle

path

4 into currently selected parking space 5

will also appear.

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 will drive into the selected parking

space.

The turn signal indicator will be switched on auto-

matically when the parking procedure begins. You

are responsible for selecting the turn signal indi-

cator in accordance with the trac conditions. If

necessary, select the turn signal indicator accord-

ingly.

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, a display

message reading Active Parking Assist Finished

will appear.

Secure the vehicle against rolling away. When

required by legal requirements or local condi-

tions: turn the wheels towards the curb.

You can stop the vehicle and change the

transmission position during the parking pro-

cedure. The system will then calculate a new

vehicle path. If no new vehicle path is availa-

ble, the transmission position can be changed

again or the process can be canceled.

▌Exiting a parking space with 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.

Driving and parking

215

Press button 1.

Parking assistance menu (example)

Select the Parking Assistance 2 menu.

If necessary, change your 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 will move out of the parking space.

The turn signal indicator will automatically be

switched on when the process of exiting a parking

space begins and switched o when it is comple-

ted. You are responsible for selecting the turn sig-

nal indicator in accordance with the trac condi-

tions. If necessary, select the turn signal indicator

accordingly.

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 will

prompt you to take control of the vehicle. You will

need 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 apply the brakes to

bring the vehicle to a standstill.

▌Pausing 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 trunk or the hood.

Apply the electric parking brake or activating

the HOLD function.

To resume the parking or exiting procedure:

gently depress the accelerator pedal.

216

Driving and parking

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. Check

again that there are no persons, animals or

objects in the maneuvering range. Also observe

the system limitations of Active Parking Assist.

▌Automatic braking function of Active Parking

Assist

Persons or objects detected in the maneuvering

range could cause the vehicle to brake sharply

and interrupt the parking or exiting procedure.

The vehicle will then be held at a standstill. If you

depress the accelerator pedal, the parking or exit-

ing procedure is resumed.

Check the area around your vehicle again before

resuming the parking or exiting procedure. Check

again that there are no persons, animals or

objects in the maneuvering range. Also observe

the system limitations of Active Parking Assist.

Maneuvering assistance

▌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. 1 mph (2 km/h). If a

critical situation is detected, the É symbol

appears on the central display.

Drive Away Assist can be activated or deactivated

in the

Maneuvering Assistance menu.

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 your attention to the surroundings. The

responsibility for safe maneuvering and parking

remains with you. Make sure that no persons, ani-

mals or objects etc. are in the maneuvering

range.

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

uations, for example:

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.

If you shi the transmission position to k or

h when the vehicle is stationary.

Driving and parking

217

If the detected obstacle is less than approx.

3.3  (1.0 m) away.

The maneuvering assistant is activated

(/ page 219).

System limits

The performance of Drive Away Assist is limited

on inclines.

Also observe the system limits of Parking

Assist PARKTRONIC (/ page 208).

▌Function of Cross Trac Alert

Cross Trac Alert is available only for vehicles

with Blind Spot Assist.

Cross Trac Alert can warn drivers of any cross-

ing trac when backing up out of a parking space

and maneuvering. The radar sensors in the

bumper also monitor the area adjacent to the

vehicle. If a critical situation is detected, the L

symbol appears on the central display 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 is active under the

following conditions:

If the vehicle is backing up at walking pace.

The maneuvering assistant is activated

(/ page 219).

Also observe the notes on Blind Spot Assist

(/ page 197).

System limits

The Cross Trac Alert function is not available on

inclines.

▌Function of close-range braking

The close-range braking function can prevent col-

lisions with pedestrians when the vehicle is back-

ing up at slow speeds. If the rear-view camera

detects a person in the vehicle's path, the brakes

can be applied to bring the vehicle to a standstill.

The close-range braking function may intervene in

the following circumstances:

The vehicle is backing up at a speed slower

than 6 mph (10 km/h).

The camera image is shown on the central dis-

play (/ page 208).

Close-range braking can be deactivated or activa-

ted on the

Maneuvering Assistance menu

(depending on the country) (/ page 219).

If the close-range braking function is triggered,

the º symbol will appear in red in the selec-

ted view on the

Camera & Parking menu.

If close-range braking is not available, the

º symbol will appear in gray.

The close-range braking function is only an aid. It

is not a substitute for your attention to the sur-

roundings. The responsibility for safe maneuvering

and parking remains with you. Make sure that no

persons, animals, objects, etc. are in the maneu-

vering range.

WARNING Risk of accident caused by limi-

ted detection by the maneuvering brake

function

The maneuvering 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.

218

Driving and parking

Always pay careful attention to the trac

situation; do not rely on the maneuvering

brake function alone.

Be ready to brake.

System limits

Observe the system limits of the following func-

tions:

Active Parking Assist (/ page 212)

360° camera (/ page 204)

Rear-view camera (/ page 201)

The close-range braking function will not be avail-

able in the following situations:

On inclines

▌Activating/deactivating maneuvering assistant

Multimedia system:

Settings

Assistance

Parking

This function is an on-demand feature

(/ page 21).

Activating/deactivating the maneuvering

assistant function is not available in all coun-

tries.

Select Maneuvering Assistance.

Activate or deactivate the desired maneuver-

ing assistant.

Vehicle towing instructions

The vehicle is not suitable for the use of tow bar

systems that are used for at towing or dinghy

towing, for example. Attaching and using tow bar

systems can result in damage to the vehicle.

When you are towing a vehicle with tow bar sys-

tems, safe driving characteristics cannot be guar-

anteed for the towing vehicle or the towed vehicle.

The vehicle-trailer combination may swerve from

side to side.

Observe the following information:

Permitted towing methods (/ page 305)

The notes on towing with both axles on the

ground (/ page 306)

Driving and parking

219

Driving and parking -> Driving and driving safety systems for Your Mercedes CLA 4 Door Third Generation (2025-2026)

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