Get Driving and parking -> Driving systems Guide for Mercedes GLA SUV First Generation (2013-2019)

Driving systems

Cruise control

General notes

Cruise control maintains a constant road

speed for you. It brakes automatically in order

to avoid exceeding the set speed. On long and

steep downhill gradients, especially if the

vehicle is laden, you must select a low gear in

good time. For this, you will need to have

selected manual drive program M

(Y page 154). By doing so, you will make use

of the braking effect of the engine. This

relieves the load on the brake system and

prevents the brakes from overheating and

wearing too quickly.

Use cruise control only if road and traffic con-

ditions make it appropriate to maintain a

steady speed for a prolonged period. You can

store any road speed above 20 mph

(30 km/h).

Important safety notes

If you fail to adapt your driving style, cruise

control can neither reduce the risk of an acci-

dent nor override the laws of physics. Cruise

control cannot take into account the road,

traffic and weather conditions. Cruise control

is only an aid. You are responsible for the dis-

tance to the vehicle in front, for vehicle speed,

for braking in good time and for staying in

your lane.

Do not use cruise control:

in road and traffic conditions which do not

allow you to maintain a constant speed e.g.

in heavy traffic or on winding roads

on slippery road surfaces. Braking or accel-

erating could cause the drive wheels to lose

traction and the vehicle could then skid

when there is poor visibility, e.g. due to fog,

heavy rain or snow

If there is a change of drivers, advise the new

driver of the speed stored.

Cruise control lever

To activate or increase speed

;

To activate or reduce speed

To deactivate cruise control

To activate at the current speed/last

stored speed

When you activate cruise control, the stored

speed is shown in the multifunction display

for five seconds.

Activation conditions

To activate cruise control, all of the following

activation conditions must be fulfilled:

the electric parking brake must be

released.

you are driving faster than 20 mph

(30 km/h).

ESP

must be active, but not intervening.

on vehicles with automatic transmission,

the selector lever must be in position D.

Storing, maintaining and calling up a

speed

Storing and maintaining the current

speed

You can store the current speed if you are

driving faster than 20 mph (30 km/h).

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Driving systems

Driving and parking

Accelerate the vehicle to the desired

speed.

Briefly press the cruise control lever up :

or down ;.

Remove your foot from the accelerator

pedal.

Cruise control is activated. The vehicle

automatically maintains the stored speed.

Cruise control may be unable to maintain

the stored speed on uphill gradients. The

stored speed is resumed when the gradient

evens out. Cruise control maintains the

stored speed on downhill gradients by

automatically applying the brakes.

Storing the current speed or calling up the

last stored speed

WARNING

If you call up the stored speed and it differs

from the current speed, the vehicle acceler-

ates or decelerates. If you do not know the

stored speed, the vehicle could accelerate or

brake unexpectedly. There is a risk of an acci-

dent.

Pay attention to the road and traffic condi-

tions before calling up the stored speed. If you

do not know the stored speed, store the

desired speed again.

Briefly pull the cruise control lever towards

you ?.

Remove your foot from the accelerator

pedal.

The first time cruise control is activated, it

stores the current speed or regulates the

speed of the vehicle to the previously

stored speed.

Setting a speed

Keep in mind that it may take a brief moment

until the vehicle has accelerated or braked to

the speed set.

Press the cruise control lever up : for a

higher speed or down ; for a lower speed.

To adjust the set speed in 1 mph incre-

ments (1 km/h increments): briefly

press the cruise control lever up : or

down ; to the pressure point.

Every time the cruise control lever is

pressed up : or down ; the last speed

stored is increased or reduced.

To adjust the set speed in 5 mph incre-

ments (10 km/h increments): briefly

press the cruise control lever up : or

down ; to the pressure point.

Every time the cruise control lever is

pressed up : or down ; the last speed

stored is increased or reduced.

Cruise control is not deactivated if you

depress the accelerator pedal. For exam-

ple, if you accelerate briefly to overtake,

cruise control adjusts the vehicle's speed

to the last speed stored after you have fin-

ished overtaking.

Deactivating cruise control

There are several ways to deactivate cruise

control:

Briefly press the cruise control lever for-

wards = .

Brake.

Cruise control is automatically deactivated if:

the vehicle is secured with the electric

parking brake

you are driving at less than 20 mph

(30 km/h)

ESP

intervenes or you deactivate ESP

you shift the transmission to position N

while driving

If cruise control is deactivated, you will hear a

warning tone. You will see the

Cruise Con‐Cruise Con‐

trol Offtrol Off message in the multifunction dis-

play for approximately five seconds.

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173

Driving and parking

When you switch off the engine, the last

speed stored is cleared.

DISTRONIC PLUS

General notes

DISTRONIC PLUS regulates the speed and

automatically helps you maintain the dis-

tance to the vehicle detected in front. Vehi-

cles are detected with the aid of the radar

sensor system. DISTRONIC PLUS brakes

automatically so that the set speed is not

exceeded.

Change into a lower gear in good time on long

and steep downhill gradients. This is espe-

cially important if the vehicle is laden. By

doing so, you will make use of the braking

effect of the engine. This relieves the load on

the brake system and prevents the brakes

from overheating and wearing too quickly.

If DISTRONIC PLUS detects that there is a risk

of a collision, you will be warned visually and

acoustically. DISTRONIC PLUS cannot pre-

vent a collision without your intervention. An

intermittent warning tone will then sound and

the distance warning lamp will light up in the

instrument cluster. Brake immediately in

order to increase the distance to the vehicle

in front or take evasive action provided it is

safe to do so.

DISTRONIC PLUS operates in range between

0 mph (0 km/h) and 120 mph (200 km/h).

Do not use DISTRONIC PLUS while driving on

roads with steep gradients.

As DISTRONIC PLUS transmits radar waves, it

can resemble the radar detectors of the

responsible authorities. You can refer to the

relevant chapter in the Operator's Manual if

questions are asked about this.

This device complies with RSS-210 of

Industry Canada. Operation is subject to

the following two conditions:

1. This device may not cause harmful inter-

ference, and

2. this device must accept any interference

received, including interference that may

cause undesired operation of the device.

Removal, tampering, or altering of the

device will void any warranties, and is not

permitted. Do not tamper with, alter, or use

in any non-approved way.

Any unauthorized modification to this

device could void the user's authority to

operate the equipment.

Important safety notes

WARNING

DISTRONIC PLUS does not react to:

people or animals

stationary obstacles on the road, e.g. stop-

ped or parked vehicles

oncoming and crossing traffic

As a result, DISTRONIC PLUS may neither give

warnings nor intervene in such situations.

There is a risk of an accident.

Always pay careful attention to the traffic sit-

uation and be ready to brake.

WARNING

DISTRONIC PLUS cannot always clearly iden-

tify other road users and complex traffic sit-

uations.

In such cases, DISTRONIC PLUS may:

give an unnecessary warning and then

brake the vehicle

neither give a warning nor intervene

accelerate or brake unexpectedly

There is a risk of an accident.

Continue to drive carefully and be ready to

brake, in particular when warned to do so by

DISTRONIC PLUS.

WARNING

DISTRONIC PLUS brakes your vehicle with up

to 50% of the maximum possible deceleration.

If this braking force is insufficient, DISTRONIC

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Driving systems

Driving and parking

PLUS warns you visually and audibly. There is

a risk of an accident.

In such cases, apply the brakes yourself and

try to take evasive action.

If DISTRONIC PLUS or the HOLD function

is activated, the vehicle brakes automati-

cally in certain situations. To prevent dam-

age to the vehicle, deactivate DISTRONIC

PLUS and the HOLD function in the follow-

ing or other similar situations:

when towing the vehicle

in the car wash

If you fail to adapt your driving style, DIS-

TRONIC PLUS can neither reduce the risk of

accident nor override the laws of physics.

DISTRONIC PLUS cannot take into account

the road, traffic and weather conditions. DIS-

TRONIC PLUS is only an aid. You are respon-

sible for the distance to the vehicle in front,

for vehicle speed, for braking in good time and

for staying in your lane.

Do not use DISTRONIC PLUS:

in road and traffic conditions which do not

allow you to maintain a constant speed e.g.

in heavy traffic or on winding roads

on slippery road surfaces. Braking or accel-

erating could cause the drive wheels to lose

traction and the vehicle could then skid

when there is poor visibility, e.g. due to fog,

heavy rain or snow

DISTRONIC PLUS may not detect narrow

vehicles driving in front, e.g. motorcycles, or

vehicles driving on a different line.

In particular, the detection of obstacles can

be impaired if:

there is dirt on the sensors or anything else

covering the sensors

there is snow or heavy rain

there is interference by other radar sources

there are strong radar reflections, for

example, in parking garages

If DISTRONIC PLUS no longer detects a vehi-

cle in front, DISTRONIC PLUS may unexpect-

edly accelerate the vehicle to the stored

speed.

This speed may:

be too high if you are driving in a filter lane

or an exit lane

be so high when driving in the right-hand

lane that you overtake vehicles in the left-

hand lane

be so high when driving in the left-hand lane

that you overtake vehicles in the right-hand

lane

If there is a change of drivers, advise the new

driver of the speed stored.

Cruise control lever

To store the current speed or a higher

speed

;

To store the current speed or a lower

speed

To deactivate DISTRONIC PLUS

To store the current speed or call up the

last stored speed

To set the specified minimum distance

Activating DISTRONIC PLUS

Activation conditions

To activate DISTRONIC PLUS, all of the fol-

lowing activation conditions must be fulfilled:

the engine must be started. It may take up

to two minutes after pulling away before

DISTRONIC PLUS is operational.

the electric parking brake must be

released.

Driving systems

175

Driving and parking

ESP

must be active, but not intervening.

Active Parking Assist must not be activa-

ted.

DSR must be deactivated.

the transmission must be in position D.

the driver's door must be closed when you

shift from P to D or your seat belt must be

fastened.

the front-passenger door and rear doors

must be closed.

Activating

Briefly pull the cruise control lever towards

you ? or press it up : or down ;.

DISTRONIC PLUS is selected.

Press the cruise control lever repeatedly

up : or down ; until the desired speed is

set.

Remove your foot from the accelerator

pedal.

Your vehicle adapts its speed to that of the

vehicle in front, but only up to the desired

stored speed.

If you do not fully release the accelerator

pedal, the

DISTRONICDISTRONIC PLUSPLUS PassivePassive mes-

sage appears in the multifunction display.

The set distance to a slower-moving vehicle

in front will then not be maintained. You will

be driving at the speed you determine by

the position of the accelerator pedal.

You can also activate DISTRONIC PLUS when

stationary. The lowest speed that can be set is

18 mph (30 km/h).

Briefly pull the cruise control lever towards

you ? or press it up : or down ;.

DISTRONIC PLUS is selected.

Activating at the current speed/last

stored speed

WARNING

If you call up the stored speed and it differs

from the current speed, the vehicle acceler-

ates or decelerates. If you do not know the

stored speed, the vehicle could accelerate or

brake unexpectedly. There is a risk of an acci-

dent.

Pay attention to the road and traffic condi-

tions before calling up the stored speed. If you

do not know the stored speed, store the

desired speed again.

Briefly pull the cruise control lever

(Y page 175) towards you ?.

Remove your foot from the accelerator

pedal.

DISTRONIC PLUS is activated. The first

time it is activated, the current speed is

stored. Otherwise, it sets the vehicle cruise

speed to the previously stored value.

Driving with DISTRONIC PLUS

Pulling away and driving

The vehicle can also pull away when it is

facing an unidentified obstacle or is driving

on a different line from another vehicle. The

vehicle then brakes automatically. There is

a risk of an accident. Be ready to brake at all

times.

If you depress the brake, DISTRONIC PLUS is

deactivated unless your vehicle is stationary.

If you want to pull away with DIS-

TRONIC PLUS: remove your foot from the

brake pedal.

Briefly pull the cruise control lever

(Y page 175) towards you ?.

Accelerate briefly.

Your vehicle pulls away and adapts its

speed to that of the vehicle in front.

If no vehicle is detected in front, your vehi-

cle accelerates to the set speed.

If there is no vehicle in front, DISTRONIC

PLUS operates in the same way as cruise

control.

If DISTRONIC PLUS detects that the vehicle in

front has slowed down, it brakes your vehicle.

In this way, the distance you have selected is

maintained.

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Driving systems

Driving and parking

If DISTRONIC PLUS detects a faster-moving

vehicle in front, it increases the driving speed.

The vehicle is only accelerated up to the

speed you have stored.

Selecting the drive program

DISTRONIC Plus supports a sporty driving

style when you have selected the S or M driv-

ing program (Y page 152). Acceleration

behind the vehicle in front or to the set speed

is then noticeably more dynamic. If you have

selected the E driving program, the vehicle

accelerates more gently. This setting is rec-

ommended in stop-and-start traffic.

Changing lanes

If you change to the passing lane, DISTRONIC

PLUS supports you when:

you are driving faster than 43.5 mph

(70 km/h)

DISTRONIC PLUS is maintaining the dis-

tance to a vehicle in front

you switch on the appropriate turn signal

DISTRONIC PLUS does not detect a danger

of collision

If these conditions are fulfilled, your vehicle is

accelerated. Acceleration will be interrupted

if changing lanes takes too long or if the dis-

tance between your vehicle and the vehicle in

front becomes too small.

Stopping

WARNING

When leaving the vehicle, even if it is braked

only by DISTRONIC PLUS, it could roll away if:

there is a malfunction in the system or in

the voltage supply.

DISTRONIC PLUS has been deactivated

with the cruise control lever, e.g. by a vehi-

cle occupant or from outside the vehicle.

the electrical system in the engine com-

partment, the battery or the fuses have

been tampered with.

the battery is disconnected.

the accelerator pedal has been depressed,

e.g. by a vehicle occupant.

There is a risk of an accident.

If you wish to exit the vehicle, always turn off

DISTRONIC PLUS and secure the vehicle

against rolling away.

For further information on deactivating DIS-

TRONIC PLUS (Y page 178).

If DISTRONIC PLUS detects that the vehicle in

front is stopping, it brakes your vehicle until it

is stationary.

Once your vehicle is stationary, it remains

stationary and you do not need to depress the

brake.

After a time, the electric parking brake

secures the vehicle and relieves the service

brake.

Depending on the specified minimum dis-

tance, your vehicle will come to a standstill

at a sufficient distance behind the vehicle in

front. The specified minimum distance is

set using the control on the cruise control

lever.

The electric parking brake automatically

secures the vehicle if DISTRONIC PLUS is

activated and:

the seat belt is unfastened and the driver's

door is open.

the engine is switched off, unless it is auto-

matically switched off by the ECO start/

stop function.

a system malfunction occurs.

the power supply is not sufficient.

If a malfunction occurs, then the transmission

may be shifted into position P automatically.

Setting a speed

Keep in mind that it may take a brief moment

until the vehicle has accelerated or braked to

the speed set.

Driving systems

177

Driving and parking

To store the current speed or a higher

speed

;

To store the current speed or a lower

speed

Press the cruise control lever up : for a

higher speed or down ; for a lower speed.

To adjust the set speed in 1 mph incre-

ments (1 km/h increments): briefly

press the cruise control lever up : or

down ; to the pressure point.

Every time the cruise control lever is

pressed up : or down ; the last speed

stored is increased or reduced.

To adjust the set speed in 5 mph incre-

ments (10 km/h increments): briefly

press the cruise control lever up : or

down ; to the pressure point.

Every time the cruise control lever is

pressed up : or down ;, the last speed

stored is increased or reduced.

DISTRONIC PLUS is not deactivated if you

depress the accelerator pedal. If you accel-

erate to overtake, DISTRONIC PLUS

adjusts the vehicle's speed to the last

speed stored after you have finished over-

taking.

Setting the specified minimum distance

You can set the specified minimum distance

for DISTRONIC PLUS by varying the time span

between one and two seconds. With this func-

tion, you can set the minimum distance that

DISTRONIC PLUS keeps to the vehicle in

front, dependent on vehicle speed. You can

see this distance in the multifunction display

(Y page 179).

Make sure that you maintain the mini-

mum distance to the vehicle in front as

required by law. Adjust the distance to the

vehicle in front if necessary.

To increase: turn control = in direc-

tion ;.

DISTRONIC PLUS then maintains a greater

distance between your vehicle and the

vehicle in front.

To decrease: turn control = in direc-

tion :.

DISTRONIC PLUS then maintains a shorter

distance between your vehicle and the

vehicle in front.

Deactivating DISTRONIC PLUS

178

Driving systems

Driving and parking

There are several ways to deactivate DIS-

TRONIC PLUS:

Briefly press the cruise control lever for-

wards :.

Brake, unless the vehicle is stationary.

When you deactivate DISTRONIC PLUS, you

will see the

DISTRONICDISTRONIC PLUSPLUS OffOff message in

the multifunction display for approximately

five seconds.

The last speed stored remains stored until

you switch off the engine. DISTRONIC PLUS

is not deactivated if you depress the accel-

erator pedal.

DISTRONIC PLUS is automatically deactiva-

ted if:

you engage the electric parking brake or if

the vehicle is automatically secured with

the electric parking brake

ESP

intervenes or you deactivate ESP

the transmission is in the P, R or N position

you pull the cruise control lever towards

you in order to pull away and the front-

passenger door or one of the rear doors is

open

the vehicle is skidding

you activate DSR

you activate Active Parking Assist

If DISTRONIC PLUS is deactivated, you will

hear a warning tone. You will see the

DIS‐DIS‐

TRONIC

TRONIC PLUSPLUS OffOff message in the multifunc-

tion display for approximately five seconds.

DISTRONIC PLUS displays in the instru-

ment cluster

Displays in the speedometer

Example: DISTRONIC PLUS displays in the speed-

ometer

When DISTRONIC PLUS is activated, one or

two segments ; in the set speed range light

up.

If DISTRONIC PLUS detects a vehicle in front,

segments ; between speed of the vehicle in

front = and stored speed : light up.

For design reasons, the speed displayed

in the speedometer may differ slightly from

the speed set for DISTRONIC PLUS.

Display when DISTRONIC PLUS is deacti-

vated

Vehicle in front, if detected

;

Distance indicator, current distance to

the vehicle in front

Specified minimum distance to the vehi-

cle in front; adjustable

Own vehicle

Driving systems

179

Driving and parking

In the Assistance menu (Y page 213) of the

on-board computer, you can select the assis-

tance display.

Select the

Assistance GraphicAssistance Graphic function

using the on-board computer

(Y page 213).

Display when DISTRONIC PLUS is activa-

ted

Vehicle in front, if detected

;

Specified minimum distance to the vehi-

cle in front; adjustable

Own vehicle

DISTRONIC PLUS active (text only

appears when the cruise control lever is

actuated)

Select the

Assistance GraphicAssistance Graphic function

using the on-board computer

(Y page 213).

You will initially see the stored speed for

about five seconds when you activate DIS-

TRONIC PLUS.

Tips for driving with DISTRONIC PLUS

General notes

The following contains descriptions of certain

road and traffic conditions in which you must

be particularly attentive. In such situations,

brake if necessary. DISTRONIC PLUS is then

deactivated.

Cornering, going into and coming out of a

bend

The ability of DISTRONIC PLUS to detect vehi-

cles when cornering is limited. Your vehicle

may brake unexpectedly or late.

Vehicles traveling on a different line

DISTRONIC PLUS may not detect vehicles

traveling on a different line. The distance to

the vehicle in front will be too short.

Other vehicles changing lanes

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Driving systems

Driving and parking

DISTRONIC PLUS has not detected the vehi-

cle cutting in yet. The distance to this vehicle

will be too short.

Narrow vehicles

DISTRONIC PLUS has not yet detected the

vehicle in front on the edge of the road,

because of its narrow width. The distance to

the vehicle in front will be too short.

Obstructions and stationary vehicles

DISTRONIC PLUS does not brake for obsta-

cles or stationary vehicles. If, for example, the

detected vehicle turns a corner and reveals

an obstacle or stationary vehicle, DISTRONIC

PLUS will not brake for these.

Crossing vehicles

DISTRONIC PLUS may detect vehicles that

are crossing your lane by mistake. Activating

DISTRONIC PLUS at traffic lights with cross-

ing traffic, for example, could cause your vehi-

cle to pull away unintentionally.

HOLD function

Important safety notes

WARNING

When leaving the vehicle, it can still roll away

despite being braked by the HOLD function if:

there is a malfunction in the system or in

the voltage supply.

the HOLD function has been deactivated by

pressing the accelerator pedal or the brake

pedal, e.g. by a vehicle occupant.

the electrical system in the engine com-

partment, the battery or the fuses have

been tampered with.

the battery is disconnected

There is a risk of an accident.

If you wish to exit the vehicle, always turn off

the HOLD function and secure the vehicle

against rolling away.

Driving systems

181

Driving and parking

If DISTRONIC PLUS or the HOLD function

is activated, the vehicle brakes automati-

cally in certain situations. To prevent dam-

age to the vehicle, deactivate DISTRONIC

PLUS and the HOLD function in the follow-

ing or other similar situations:

when towing the vehicle

in the car wash

Deactivating the HOLD function

(Y page 182).

General notes

The HOLD function can assist the driver in the

following situations:

when pulling away, especially on steep

slopes

when maneuvering on steep slopes

when waiting in traffic

The vehicle is kept stationary without the

driver having to depress the brake pedal.

The braking effect is canceled and the HOLD

function deactivated when you depress the

accelerator pedal to pull away.

Activation conditions

You can activate the HOLD function if:

the vehicle is stationary

the engine is running or if it has been auto-

matically switched off by the ECO start/

stop function

the driver's door is closed or your seat belt

is fastened

the electric parking brake is released

the transmission position D, R or N is

engaged while driving a vehicle with an

automatic transmission

DISTRONIC PLUS is deactivated

Activating the HOLD function

Example: vehicles with a color multifunction dis-

play

Make sure that the activation conditions

are met.

Depress the brake pedal.

Quickly depress the brake pedal further

until : appears in the multifunction dis-

play.

The HOLD function is activated. You can

release the brake pedal.

If depressing the brake pedal the first

time does not activate the HOLD function,

wait briefly and then try again.

Deactivating the HOLD function

The HOLD function is deactivated automati-

cally if:

you accelerate. On vehicles with automatic

transmission: only when the transmission

is in position D or R.

the transmission is in position P on vehicles

with automatic transmission.

you depress the brake pedal again with a

certain amount of pressure until : disap-

pears from the multifunction display.

you secure the vehicle using the electric

parking brake.

you activate DISTRONIC PLUS.

After a time, the electric parking brake

secures the vehicle and relieves the service

brake.

182

Driving systems

Driving and parking

The electric parking brake automatically

secures the vehicle if the HOLD function is

activated and:

the driver's door is open and the driver's

seat belt is unfastened.

the engine is switched off, unless it is auto-

matically switched off by the ECO start/

stop function.

a system malfunction occurs.

the power supply is not sufficient.

On steep uphill or downhill inclines or if there

is a malfunction, the transmission may also

automatically be shifted into position P.

RACE START

Important safety notes

RACE START enables optimal acceleration

from a standing start. The precondition for

this is a suitable high-grip road surface.

RACE START is intended solely for activation

on dedicated race circuits.

RACE START is only available in AMG vehi-

cles.

Conditions for activation

You can activate RACE START if:

the doors, hood and the tailgate are closed.

the engine is running and the transmission,

all-wheel drive clutch and the engine are at

operating temperature.

SPORT handling mode is activated.

(Y page 70)

the steering wheel is in the straight-ahead

position.

the vehicle is stationary and the brake

pedal is depressed (left foot).

the transmission is in position D.

drive program M is selected (Y page 152).

Activating RACE START

Depress the brake pedal with your left foot

and keep it depressed.

Pull and hold both steering wheel shift pad-

dles.

The

RACE START Confirm: Paddle UPRACE START Confirm: Paddle UP

Cancel: Paddle DOWN

Cancel: Paddle DOWN message appears

in the multifunction display.

Release both steering wheel shift paddles.

If the activation conditions are no longer

fulfilled, RACE START is canceled. The

RACE START Not Possible See Opera‐RACE START Not Possible See Opera‐

tor's Manualtor's Manual message appears in the

multifunction display.

To cancel: pull the left steering wheel pad-

dle shifter (Y page 153).

To confirm: pull the right steering wheel

paddle shifter (Y page 153).

The

RACE START Available DepressRACE START Available Depress

gas pedal

gas pedal message appears in the multi-

function display.

If you do not depress the accelerator

pedal within a few seconds, RACE START is

canceled. The multifunction display shows

the

RACE START CanceledRACE START Canceled message.

Fully depress the accelerator pedal.

The engine speed is increased.

The

RACE START Release brake toRACE START Release brake to

start

start message appears in the multifunc-

tion display.

If you do not release the brake pedal

within a short time, RACE START will be

canceled. The multifunction display shows

the

RACE START CanceledRACE START Canceled message.

Take your foot off the brake, but keep the

accelerator pedal depressed.

The vehicle pulls away at maximum accel-

eration.

The

RACERACE STARTSTART ActiveActive message appears

in the multifunction display.

RACE START is deactivated when the vehicle

reaches a speed of approximately 30 mph

(Canada: 50 km/h). Drive program S is acti-

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183

Driving and parking

vated. SPORT handling mode remains activa-

ted.

RACE START is deactivated immediately if

you release the accelerator pedal during

RACE START or if any of the activation condi-

tions are no longer fulfilled. The

RACERACE STARTSTART

Not Possible

Not Possible or RACE START CanceledRACE START Canceled

message appears in the multifunction dis-

play.

If RACE START is used repeatedly within a

short period of time, it is only available

again after the vehicle has been driven a

certain distance.

4MATIC

4MATIC ensures that all four wheels are per-

manently driven. Together with ESP

, it

improves the traction of your vehicle when-

ever a drive wheel spins due to insufficient

grip.

If you fail to adapt your driving style, 4MATIC

can neither reduce the risk of accident nor

override the laws of physics. 4MATIC cannot

take account of road, weather and traffic con-

ditions. 4MATIC is only an aid. You are

responsible for the distance to the vehicle in

front, for vehicle speed, for braking in good

time and for staying in your lane.

If a drive wheel spins due to insufficient grip:

Only depress the accelerator pedal as far as

necessary when pulling away.

Accelerate less when driving.

Never tow the vehicle with one axle

raised. This may damage the transfer case.

Damage of this sort is not covered by the

Mercedes-Benz Limited Warranty. All

wheels must remain either on the ground or

be fully raised. Observe the instructions for

towing the vehicle with all wheels in full

contact with the ground.

In wintry driving conditions, the maximum

effect of 4MATIC can only be achieved if

you use winter tires (M+S tires), with snow

chains if necessary.

DSR

Important safety notes

DSR (Downhill Speed Regulation) is only

available for vehicles with the Off-Road

Engineering package.

DSR is an aid to assist you when driving down-

hill. It keeps the speed of travel at the speed

selected on the on-board computer. The

steeper the downhill gradient, the greater the

DSR braking effect on the vehicle. When driv-

ing on flat stretches of road or on an uphill

gradient, the DSR braking effect is minimal or

nonexistent.

DSR controls the vehicle’s speed when it is

activated and the transmission is in position

D, R or N. You can drive at a higher or a lower

speed than that set on the on-board computer

at any time by accelerating or braking.

If you fail to adapt your driving style, DSR can

neither reduce the risk of accident nor over-

ride the laws of physics. DSR cannot take

account of road, weather and traffic condi-

tions. DSR is only an aid. You are responsible

for the distance to the vehicle in front, for

vehicle speed, for braking in good time and for

staying in your lane.

You are always responsible for keeping con-

trol of the vehicle and for assessing whether

the downhill gradient can be managed. DSR

may not always be able to keep to the set

speed, depending on road surface and tire

conditions. Select a set speed suitable for the

prevailing conditions and when necessary,

apply the brakes manually.

WARNING

If the speed driven and the set speed deviate

and you activate DSR on a slippery road sur-

face, the wheels may lose traction. There is an

increased danger of skidding and accidents.

Before switching DSR on, please take into

consideration the road surface and the differ-

ence between driving speed and the set

speed.

184

Driving systems

Driving and parking

Further information about "Driving off-road"

(Y page 168).

Activating/deactivating DSR

If you activate DSR and no speed has been

set, the vehicle decelerates to 3 mph

(6 km/h).

Activating

You can only activate DSR when driving at

speeds below 20 mph (30 km/h).

Press button :.

Indicator lamp ; lights up.

The status indicator in the multifunction

display shows, e.g.

DSR 6 km/hDSR 6 km/h.

If the current vehicle speed is too high, the

DSR icon appears in the multifunction dis-

play. You will also see the message:

Max.Max.

Speed 30 km/h

Speed 30 km/h .

If you enter or exit a parking space using

Active Parking Assist, and press button :,

indicator lamp ; flashes. DSR can then not

be switched on.

Deactivating

Press button :.

Indicator lamp ; goes out.

DSR symbol appears in the multifunction

display with the

OffOff message.

DSR switches off automatically if you drive

faster than 22 mph (35 km/h). The DSR sym-

bol appears in the multifunction display with

the

OffOff message. You also hear a warning

tone.

Display in the assistance graphic

Select the

Assistance GraphicAssistance Graphic function

using the on-board computer

(Y page 213).

When DSR is activated symbol : appears

in the assistance graphics display.

Changing the set speed while the vehi-

cle is in motion

When DSR is activated, you can change the

set speed to a value between 2 mph and

11 mph (Canada: between 4 km/h and

18 km/h) while the vehicle is in motion.

To increase or decrease in 1 mph incre-

ments (Canada: 1 km/h increments):

briefly press the cruise control lever to the

pressure point, up : for a higher set speed

or down ; for a lower set speed.

The set value appears in the status indica-

tor of the multifunction display.

Driving systems

185

Driving and parking

Off-road program

General notes

The off-road drive program is only availa-

ble on vehicles with the Off-Road Engineer-

ing package.

The off-road program assists you in driving

off-road. The engine's performance charac-

teristics and the gearshifting characteristics

of the automatic transmission are adapted for

this purpose. ABS, ESP

and ETS programs

especially adapted to off-road driving are also

activated.

Do not use the off-road program on roads that

are snow-covered or icy or if you have moun-

ted snow chains on your vehicle.

For information about driving off-road, see

(Y page 168).

Switching the off-road program on or off

To switch on: press the : button.

Indicator lamp ; lights up.

To switch off: press button :.

Indicator lamp ; goes out.

Display in the assistance graphic

Select the

Assistance GraphicAssistance Graphic function

using the on-board computer

(Y page 213).

When the off-road program is activated,

symbol : appears in the assistance

graphic display.

PARKTRONIC

Important safety notes

PARKTRONIC is an electronic parking aid with

ultrasonic sensors. It monitors the area

around your vehicle using six sensors in the

front bumper and six sensors in the rear

bumper. PARKTRONIC indicates visually and

audibly the distance between your vehicle

and an object.

PARKTRONIC is only an aid. It is not a replace-

ment for your attention to your immediate

surroundings. You are always responsible for

safe maneuvering, parking and exiting a park-

ing space. When maneuvering, parking or

pulling out of a parking space, make sure that

there are no persons, animals or objects in

the area in which you are maneuvering.

When parking, pay particular attention to

objects above or below the sensors, such

as flower pots or trailer drawbars. PARK-

TRONIC does not detect such objects when

they are in the immediate vicinity of the

vehicle. You could damage the vehicle or

the objects.

186

Driving systems

Driving and parking

The sensors may not detect snow and other

objects that absorb ultrasonic waves.

Ultrasonic sources such as an automatic

car wash, the compressed-air brakes on a

truck or a pneumatic drill could cause

PARKTRONIC to malfunction.

PARKTRONIC may not function correctly on

uneven terrain.

PARKTRONIC is activated automatically when

you:

switch on the ignition

shift the transmission to position D, R or N

release the electric parking brake

PARKTRONIC is deactivated at speeds above

11 mph (18 km/h). It is reactivated at lower

speeds.

Range of the sensors

General notes

PARKTRONIC does not take objects into con-

sideration that are:

below the detection range, e.g. people, ani-

mals or objects

above the detection range, e.g. overhang-

ing loads, truck overhangs or loading ramps

Sensors in the front bumper, left-hand

side (example)

Side view

Top view

The sensors must be free from dirt, ice or

slush. They can otherwise not function cor-

rectly. Clean the sensors regularly, taking

care not to scratch or damage them

(Y page 301).

Front sensors

Center Approx. 40 in (approx.

100 cm)

Corners Approx. 24 in (approx.

60 cm)

Rear sensors

Center Approx. 48 in (approx.

120 cm)

Corners Approx. 32 in (approx.

80 cm)

Minimum distance

Center Approx. 8 in (approx.

20 cm)

Corners Approx. 8 in (approx.

20 cm)

Driving systems

187

Driving and parking

If there is an obstacle within this range, the

relevant warning displays light up and a warn-

ing tone sounds. If the distance falls below

the minimum, the distance may no longer be

shown.

Warning displays

The warning displays show the distance

between the sensors and the obstacle. The

warning display for the front area is located

on the dashboard above the center air vents.

The warning display for the rear area is loca-

ted on the headliner in the rear compartment.

Warning display for the front area

Segments on the left-hand side of the

vehicle

;

Segments on the right-hand side of the

vehicle

Segments showing operational readiness

The warning display for each side of the vehi-

cle is divided into five yellow and two red seg-

ments. PARKTRONIC is operational if yellow

segments showing operational readiness =

light up.

The selected transmission position and the

direction in which the vehicle is rolling deter-

mine which warning display is active when the

engine is running.

Transmission

position

Warning display

Front area activated

R, N or the vehicle

is rolling back-

wards

Rear and front areas

activated

No areas activated

One or more segments light up as the vehicle

approaches an obstacle, depending on the

vehicle's distance from the obstacle.

From the:

sixth segment onwards, you will hear an

intermittent warning tone for approx-

imately two seconds.

seventh segment onwards, you will hear a

warning tone for approximately two sec-

onds. This indicates that you have now

reached the minimum distance.

Deactivating/activating PARKTRONIC

Indicator lamp

;

To deactivate/activate PARKTRONIC

If indicator lamp : lights up, PARKTRONIC is

deactivated.

PARKTRONIC is automatically activated

when you turn the SmartKey to position 2 in

the ignition lock.

188

Driving systems

Driving and parking

Problems with PARKTRONIC

Problem

Possible causes/consequences and MM Solutions

Only the red segments

in the PARKTRONIC

warning displays are lit.

You also hear a warning

tone for approximately

two seconds.

PARKTRONIC is then

deactivated and the

indicator lamp on the

PARKTRONIC button

lights up.

PARKTRONIC has malfunctioned and has switched off.

If problems persist, have PARKTRONIC checked at a qualified

specialist workshop.

Only the red segments

in the PARKTRONIC

warning displays are lit.

PARKTRONIC is then

deactivated.

The PARKTRONIC sensors are dirty or there is interference.

Clean the PARKTRONIC sensors (Y page 301).

Switch the ignition back on.

The problem may be caused by an external source of radio or

ultrasound waves.

See if PARKTRONIC functions in a different location.

Active Parking Assist

General notes

Active Parking Assist is an electronic parking

aid with ultrasound. It measures the road on

both sides of the vehicle. A parking symbol

indicates a suitable parking space. Active

steering intervention and brake application

can assist you during parking and when exit-

ing a parking space. You may also use PARK-

TRONIC (Y page 186).

Important safety notes

Active Parking Assist is merely an aid. It is not

a replacement for your attention to your

immediate surroundings. You are always

responsible for safe maneuvering, parking

and exiting a parking space. Make sure that

no persons, animals or objects are in the

maneuvering range.

When PARKTRONIC is switched off, Active

Parking Assist is also unavailable.

WARNING

While parking or pulling out of a parking

space, the vehicle swings out and can drive

onto areas of the oncoming lane. This could

result in a collision with another road user.

There is a risk of an accident.

Pay attention to other road users. Stop the

vehicle if necessary or cancel the Active Park-

ing Assist parking procedure.

If unavoidable, you should drive over

obstacles such as curbs slowly and not at a

sharp angle. Otherwise, you may damage

the wheels or tires.

Active Parking Assist may possibly indicate

parking spaces which are not suitable for

parking, for example:

where parking or stopping is prohibited

in front of driveways or entrances and exits

on unsuitable surfaces

Driving systems

189

Driving and parking

Parking tips:

On narrow roads, drive as close to the park-

ing space as possible.

Parking spaces that are littered or over-

grown might be identified or measured

incorrectly.

Parking spaces that are partially occupied

by trailer drawbars might not be identified

as such or be measured incorrectly.

Snowfall or heavy rain may lead to a parking

space being measured inaccurately.

Pay attention to the PARKTRONIC

(Y page 188) warning messages during the

parking procedure.

You can intervene in the steering procedure

to correct it at any time. Active Parking

Assist will then be canceled.

When transporting a load which protrudes

from your vehicle, you should not use

Active Parking Assist.

Never use Active Parking Assist when snow

chains are installed.

Make sure that the tire pressures are

always correct. This has a direct influence

on the parking characteristics of the vehi-

cle.

Use Active Parking Assist for parking spaces:

parallel or at right angles to the direction of

travel

that are on straight roads, not bends

that are on the same level as the road, e.g.

not on the pavement

Detecting parking spaces

Objects located above the height range of

Active Parking Assist will not be detected

when the parking space is measured. These

are not taken into account when the parking

procedure is calculated, e.g. overhanging

loads, tail sections or loading ramps of goods

vehicles.

WARNING

If there are objects above the detection range,

Active Parking Assist may turn prematurely.

You may cause a collision as a result. There is

a risk of an accident.

If there are objects above the detection range,

stop and deactivate Active Parking Assist.

For further information on the detection

range (Y page 187).

Active Parking Assist does not assist you

parking in spaces at right angles to the direc-

tion of travel if:

two parking spaces are located directly

next to one another

the parking space is directly next to a low

obstacle such as a low curb

you park forwards

Active Parking Assist does not assist you

parking in spaces that are parallel or at right

angles to the direction of travel if:

the parking space is on a curb

the parking space is apparently blocked,

for example by foliage or grass paving

blocks

the range of movement is too small

the parking space is bordered by an obsta-

cle which is not clearly defined such as a

tree or a trailer

Detected parking space on the left

;

Parking symbol

Detected parking space on the right

Active Parking Assist is automatically activa-

ted when driving forwards. The system is

operational at speeds of up to approximately

22 mph (35 km/h). While in operation, the

190

Driving systems

Driving and parking

system independently locates and measures

parking spaces on both sides of the vehicle.

Active Parking Assist will only detect parking

spaces:

parallel or at right angles to the direction of

travel

that are parallel to the direction of travel

and at least 59 in (1.5 m) wide

that are parallel to the direction of travel

and at least 39.5 in (1.0 m) longer than your

vehicle

that are at right angles to the direction of

travel and at least 39.5 in (1.0 m) wider

than your vehicle

In the case of parking spaces that are at

right angles to the direction of travel,

please ensure that the parking space is

long enough to accommodate your vehicle.

When driving at speeds below 19 mph

(30 km/h), you will see the parking symbol as

a status indicator in the instrument cluster.

When a parking space has been detected, an

arrow towards the right or the left also

appears. By default, Active Parking Assist

only displays parking spaces on the front-

passenger side. Parking spaces on the driv-

er's side are displayed as soon as the turn

signal on the driver's side is activated. When

parking on the driver's side, this must remain

switched on until you acknowledge the use of

Active Parking Assist by pressing the a

button on the multifunction steering wheel.

The system automatically determines

whether the parking space is parallel or at

right angles to the direction of travel.

A parking space is displayed while you are

driving past it, and until you are approx-

imately 50 ft (15 m) away from it.

Parking

WARNING

If you leave the vehicle when it is only being

braked by Active Parking Assist it could roll

away if:

there is a malfunction in the system or in

the voltage supply.

the electrical system in the engine com-

partment, the battery or the fuses have

been tampered with.

the battery is disconnected.

the accelerator pedal has been depressed,

e.g. by a vehicle occupant.

There is a risk of an accident.

Before leaving the vehicle, always secure it

against rolling away.

Vehicles with automatic transmission: if

PARKTRONIC detects obstacles, Active

Parking Assist brakes automatically during

the parking process. You are responsible

for braking in good time.

Stop the vehicle when the parking space

symbol shows the desired parking space in

the instrument cluster.

Shift the transmission to position R.

The

Start Park Assist? Yes: OK No:Start Park Assist? Yes: OK No:

% message appears in the multifunction

display.

To cancel the procedure: press the %

button on the multifunction steering wheel

or pull away.

To park using Active Parking Assist:

press the a button on the multifunction

steering wheel.

The

Park Assist Active AcceleratePark Assist Active Accelerate

and

and BrakeBrake ObserveObserve SurroundingsSurroundings mes-

sage appears in the multifunction display.

Let go of the multifunction steering wheel.

Back up the vehicle, being ready to brake at

all times. Do not exceed a maximum speed

of approximately 5 mph (10 km/h) when

Driving systems

191

Driving and parking

backing up. Otherwise Active Parking

Assist will be canceled.

Active Parking Assist brakes the vehicle to

a standstill when the vehicle approaches

the rear border of the parking space.

Maneuvering may be required in tight park-

ing spaces.

The

Park Assist Active Select DPark Assist Active Select D

Observe

Observe SurroundingsSurroundings message appears in

the multifunction display.

Shift the transmission to position D while

the vehicle is stationary.

Active Parking Assist immediately steers in

the other direction.

The

Park Assist Active AcceleratePark Assist Active Accelerate

and

and BrakeBrake ObserveObserve SurroundingsSurroundings mes-

sage appears in the multifunction display.

You will achieve the best results by wait-

ing for the steering procedure to complete

before pulling away.

Drive forwards and be ready to brake at all

times.

Active Parking Assist brakes the vehicle to

a standstill.

The

Park Assist Active Select RPark Assist Active Select R

Observe

Observe SurroundingsSurroundings message appears in

the multifunction display.

As soon as the parking procedure is com-

plete, the

Park Assist FinishedPark Assist Finished message

appears and a warning tone sounds. The vehi-

cle is now parked. The vehicle is kept station-

ary without the driver having to depress the

brake pedal. The braking effect is canceled

when you depress the accelerator pedal.

Active Parking Assist no longer supports you

with steering interventions and brake appli-

cations. When Active Parking Assist is fin-

ished, you must steer and brake again your-

self. PARKTRONIC is still available.

Maneuver if necessary.

Always observe the warning messages dis-

played by PARKTRONIC (Y page 188).

Parking tips:

The way your vehicle is positioned in the

parking space after parking is dependent

on various factors. These include the posi-

tion and shape of the vehicles parked in

front and behind it and the conditions of the

location. It may be the case that Active

Parking Assist guides you too far into a

parking space, or not far enough into it. In

some cases, it may also lead you across or

onto the curb. If necessary, you should can-

cel the parking procedure with Active Park-

ing Assist.

You can also engage forward gear prema-

turely. The vehicle redirects and does not

drive as far into the parking space. Should a

gear be changed too early, the parking pro-

cedure will be canceled. A sensible parking

position can no longer be achieved from

this position.

Exiting a parking space

In order that Active Parking Assist can sup-

port you when you exit the parking space:

the border of the parking space must be

high enough. A curb is too small, for exam-

ple.

the border of the parking space must not be

too wide, as the position of the vehicle must

not exceed an angle of 45° to the starting

position as it is maneuvering into the park-

ing space.

a maneuvering distance of at least 3.3 ft

(1.0 m) must be available.

Vehicles with automatic transmission:

If PARKTRONIC detects obstacles, Active

Parking Assist brakes automatically whilst

the vehicle exits the parking space. You are

responsible for braking in good time.

Active Parking Assist can only assist you with

exiting a parking space if you have parked the

vehicle parallel to the direction of travel using

Active Parking Assist.

192

Driving systems

Driving and parking

Start the engine.

Switch on the turn signal in the direction

you are pulling away.

Shift the transmission to position D or R.

The

Start Park Assist? Yes: OK No:Start Park Assist? Yes: OK No:

% message appears in the multifunction

display.

To cancel the procedure: press the %

button on the multifunction steering wheel

or pull away.

To exit a parking space using Active

Parking Assist: press the a button on

the multifunction steering wheel.

The

Park Assist Active AcceleratePark Assist Active Accelerate

and

and BrakeBrake ObserveObserve SurroundingsSurroundings mes-

sage appears in the multifunction display.

Let go of the multifunction steering wheel.

Reverse the vehicle or drive forwards, being

ready to brake at all times. Do not exceed a

maximum speed of approximately 6 mph

(10 km/h) when exiting a parking space.

Otherwise Active Parking Assist will be can-

celed.

Shift the transmission to position D or R as

required while the vehicle is stationary.

Active Parking Assist immediately steers in

the other direction. The

Park AssistPark Assist

Active Accelerate and Brake

ObserveObserve SurroundingsSurroundings message appears

in the multifunction display.

You will achieve the best results by wait-

ing for the steering procedure to complete

before pulling away.

If you back up after activation, the steering

wheel is moved to the straight-ahead posi-

tion.

Drive forwards and back up as prompted by

the PARKTRONIC warning displays, several

times if necessary.

Once you have exited the parking space com-

pletely, the steering wheel is moved to the

straight-ahead position. You hear a tone and

the

Park Assist FinishedPark Assist Finished message

appears in the multifunction display. You will

then have to steer and merge into traffic on

your own. PARKTRONIC is still available. You

can take over the steering, before the vehicle

has exited the parking space completely. This

is useful, for example when you recognize

that it is already possible to pull out of the

parking space.

Canceling Active Parking Assist

You can cancel Active Parking Assist at any

time.

Stop the movement of the multifunction

steering wheel or steer yourself.

Active Parking Assist will be canceled at

once. The

Park Assist CanceledPark Assist Canceled mes-

sage appears in the multifunction display.

Press the PARKTRONIC button on the cen-

ter console (Y page 188).

PARKTRONIC is switched off and Active

Parking Assist is immediately canceled.

The

Park Assist CanceledPark Assist Canceled message

appears in the multifunction display.

Active Parking Assist is canceled automati-

cally if:

the electric parking brake is engaged

transmission position P is selected

parking using Active Parking Assist is no

longer possible

you are driving faster than 6 mph (10 km/h)

a wheel spins, ESP

intervenes or fails. The

÷ warning lamp lights up in the instru-

ment cluster.

A warning tone sounds. The parking symbol

disappears and the multifunction display

shows the

Park Assist CanceledPark Assist Canceled mes-

sage.

If Active Parking Assist is canceled, you must

steer again yourself.

If a system malfunction occurs, the vehicle is

braked to a standstill. To drive on, depress the

accelerator again.

Driving systems

193

Driving and parking

Rear view camera

General notes

Rear view camera : is in the handle on the

tailgate.

The rear view camera is an optical parking and

maneuvering aid. It uses guide lines to show

the area behind your vehicle in the Audio/

COMAND display.

The area behind the vehicle is displayed as a

mirror image, as in the rear view mirror.

The rear view camera is protected from rain-

drops and dust by means of a flap. When the

rear view camera is activated, this flap opens.

Only once the maneuvering process has been

completed and the rear view camera has

switched off does the flap close again. For

technical reasons, the flap may remain open

briefly after the rear view camera has been

deactivated. If you switch off the engine, the

flap will also close.

The text of messages shown in the

COMAND display depends on the language

setting. The following are examples of rear

view camera messages in the COMAND

display.

Observe the notes on cleaning (Y page 302).

Important safety notes

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

replacement for your attention to your imme-

diate surroundings. You are always responsi-

ble for safe maneuvering and parking. When

maneuvering or parking, make sure that there

are no persons, animals or objects in the area

in which you are maneuvering.

Under the following circumstances, the rear

view camera will not function, or will function

in a limited manner:

the tailgate is open

in heavy rain, snow or fog

at night or in very dark places

if the camera is exposed to very bright light

if the area is lit by fluorescent light or LED

lighting (the display may flicker)

if there is a sudden change in temperature,

e.g. when driving into a heated garage in

winter

if the camera lens is dirty or obstructed

if the rear of your vehicle is damaged. In this

event, have the camera position and setting

checked at a qualified specialist workshop

The field of vision and other functions of the

rear view camera may be restricted due to

additional accessories on the rear of the vehi-

cle (e.g. license plate holder, bicycle rack).

Activating/deactivating the rear view

camera

To activate: make sure that the SmartKey

is in position 2 in the ignition lock.

Make sure that the "Activation by R gear"

function is selected in the Audio system/

COMAND; see the separate operating

instructions.

Engage reverse gear.

Guide lines are used to show the area

behind the vehicle in the Audio/COMAND

display.

To deactivate: the rear view camera deacti-

vates if you shift the transmission to P on

vehicles with automatic transmission or after

driving forwards a short distance.

194

Driving systems

Driving and parking

Displays in the Audio/COMAND display

The rear view camera may show a distorted

view of obstacles, show them incorrectly or

not at all. The rear view camera does not show

objects in the following positions:

very close to the rear bumper

under the rear bumper

in the area immediately above the tailgate

handle

Objects not at ground level may appear to

be further away than they actually are, e.g.:

the bumper of a parked vehicle

the drawbar of a trailer

the ball coupling of a trailer tow hitch

the rear section of an HGV

a slanted post

Use the guidelines only for orientation.

Approach objects no further than the bot-

tom-most guideline.

Lanes

White guide line without turning the steer-

ing wheel, vehicle width including the

exterior mirrors (static)

;

Yellow lane marking tires at current steer-

ing wheel angle, vehicle width to the outer

side of the wheels (dynamic)

Red guide line for the vehicle width includ-

ing the exterior mirrors, for current steer-

ing wheel angle (dynamic)

Bumper

Guide lines

Bumper

Red guide line at a distance of approx-

imately 10 in (0.25 m) from the rear of the

vehicle

Yellow guide line at a distance of approx-

imately 13 ft (4.0 m) from the rear of the

vehicle

Vehicle center axle (marker assistance)

Yellow guide line at a distance of approx-

imately 3 ft (1.0 m) from the rear of the

vehicle

The lanes and guide lines are only displayed if

you have engaged reverse gear.

The distance specifications only apply to

objects that are at ground level.

Additional displays on vehicles with PARKTRONIC

and COMAND

Front warning display

;

Additional PARKTRONIC measurement

operational readiness indicator

Rear warning display

Vehicles with PARKTRONIC and COMAND:

if PARKTRONIC is operational (Y page 186),

Driving systems

195

Driving and parking

an additional operational readiness indicator

will appear in COMAND display ;.If the

PARKTRONIC warning displays are active or

light up, warning displays : and = are also

active or light up correspondingly in the

COMAND display.

"Reverse parking" function

Make sure that the rear view camera is

activated and the "Reverse parking" func-

tion is selected; see the separate operating

instructions for the audio system/

COMAND.

The lane and the guide lines are shown.

Backing up straight into a parking space

without turning the steering wheel

White lane with steering wheel straight

;

Yellow guide line at a distance of approx-

imately 3 ft (1.0 m) from the rear of the

vehicle

Red guide line at a distance of approx-

imately 10 in (0.25 m) from the rear of the

vehicle

With the help of white lane :, check

whether the vehicle will fit into the parking

space.

Using the white lane as a guide, carefully

back up until you reach the end position.

Red guide line = is then at the end of the

parking space. The vehicle is almost paral-

lel in the parking space.

Reverse perpendicular parking with the

steering wheel at an angle

Drive past the parking space and bring the

vehicle to a standstill.

Turning the steering wheel

Red lane indicating the route the vehicle

will take with the steering wheel in its cur-

rent position

;

Parking space marking

While the vehicle is at a standstill, turn the

steering wheel in the direction of the park-

ing space until the red lane reaches parking

space marking ;.

Keep the steering wheel in that position

and back up carefully.

Backing up with the steering wheel turned

Red lane indicating the route the vehicle

will take with the steering wheel in its cur-

rent position

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Driving systems

Driving and parking

Stop the vehicle when it is almost exactly in

front of the parking space.

The white lane should be as close to parallel

with the parking space marking as possi-

ble.

Driving to the final position

White lane at current steering wheel angle

;

Parking space marking

Turn the steering wheel to the center posi-

tion while the vehicle is stationary.

Red guide line at a distance of approx-

imately 10 in (0.25 m) from the rear of the

vehicle

;

White lane with steering wheel straight

End of parking space

Back up carefully until you have reached

the final position.

Red guide line : is then at end of parking

space =. The vehicle is almost parallel in

the parking space.

ATTENTION ASSIST

General notes

ATTENTION ASSIST helps you during long,

monotonous journeys, such as on highways.

It is active in the range between 50 mph

(80 km/h) and 112 mph (180 km/h).

If ATTENTION ASSIST detects typical indica-

tors of fatigue or increasing lapses in con-

centration on the part of the driver, it sug-

gests you take a break.

Important safety notes

ATTENTION ASSIST is only an aid to the

driver. It might not always recognize fatigue

or increasing inattentiveness in time or fail to

recognize them at all. The system is not a

substitute for a well-rested and attentive

driver.

ATTENTION ASSIST assesses your level of

fatigue or lapses in concentration by taking

the following criteria into account:

your personal driving style, e.g. steering

characteristics

journey details, e.g. time of day and length

of journey

The functionality of ATTENTION ASSIST is

restricted and warnings may be delayed or

not occur at all:

if the road condition is poor, e.g. if the sur-

face is uneven or if there are potholes

if there is a strong side wind

if you have adopted a sporty driving style

with high cornering speeds or high rates of

acceleration

if you are predominantly driving slower

than 50 mph (80 km/h) or faster than

112 mph (180 km/h)

if you are currently using COMAND or mak-

ing a telephone call with it

if the time has been set incorrectly

in active driving situations, such as when

you change lanes or change your speed

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197

Driving and parking

Warning and display messages in the

multifunction display

Activate ATTENTION ASSIST using the on-

board computer (Y page 214).

If ATTENTION ASSIST is active, you will be

warned no sooner than 20 minutes after

your journey has begun. You then hear an

intermittent warning tone twice and the

Attention Assist: Take a Break!Attention Assist: Take a Break!

message appears in the multifunction dis-

play.

If necessary, take a break.

Press the a or % button to confirm

the message.

On long journeys, take regular breaks in good

time to allow yourself to rest properly. If you

do not take a break, you will be warned again

after 15 minutes at the earliest. The precon-

dition for this is that ATTENTION ASSIST still

detects typical indicators of fatigue or

increasing lapses in concentration.

ATTENTION ASSIST is reset when you con-

tinue your journey and starts assessing your

tiredness again if:

you switch off the engine.

you take off your seat belt and open the

driver's door, e.g. for a change of drivers or

to take a break

When ATTENTION ASSIST is deactivated, the

é symbol appears in the multifunction

display in the assistance graphic display.

Lane Tracking package

General notes

The Lane Tracking package consists of Blind

Spot Assist (Y page 198) and Lane Keeping

Assist (Y page 200).

Blind Spot Assist

General notes

Blind Spot Assist uses a radar sensor system

to monitor the areas on both sides of your

vehicle. It supports you from a speed of

approximately 20 mph (30 km/h). A warning

display in the exterior mirrors draws your

attention to vehicles detected in the moni-

tored area. If you then switch on the corre-

sponding turn signal to change lanes, you will

also receive a visual and audible collision

warning. For this purpose, Blind Spot Assist

uses sensors in the rear bumper.

Important safety notes

WARNING

Blind Spot Assist does not react to:

vehicles overtaken too closely on the side,

placing them in the blind spot area

vehicles which approach with a large speed

differential and overtake your vehicle

As a result, Blind Spot Assist may not give

warnings in such situations. There is a risk of

an accident.

Always observe the traffic conditions care-

fully, and maintain a safe lateral distance.

Blind Spot Assist is only an aid. It may fail to

detect some vehicles and is no substitute for

attentive driving.

USA only:

This device has been approved by the FCC

as a "Vehicular Radar System". The radar

sensor is intended for use in an automotive

radar system only. Removing, tampering

with, or altering the device will void any

warranties, and is not permitted by the

FCC. Do not tamper with, alter, or use in

any non-approved way.

Any unauthorized modification to this

device could void the user’s authority to

operate the equipment.

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Driving systems

Driving and parking

Monitoring range of the sensors

In particular, the detection of obstacles can

be impaired if:

dirt on the sensors or anything else cover-

ing the sensors

there is poor visibility, e.g. due to fog, heavy

rain or snow

a narrow vehicle traveling in front, e.g. a

motorbike or bicycle

the road has very wide lanes

the road has narrow lanes

you are not driving in the middle of the lane

there are barriers or similar lane borders

Vehicles in the monitoring range are then not

indicated.

Blind Spot Assist monitors the area up to 10 ft

(3.0 m) behind your vehicle and directly next

to your vehicle, as shown in the diagram. For

this purpose, Blind Spot Assist uses radar

sensors in the rear bumper.

If the lanes are narrow, vehicles driving in the

lane beyond the lane next to your vehicle may

be indicated, especially if the vehicles are not

driving in the middle of their lane. This may be

the case if the vehicles are driving on the inner

side of their lane.

Due to the nature of the system:

warnings may be issued in error when driv-

ing close to crash barriers or similar solid

lane borders.

warnings may be interrupted when driving

alongside particularly long vehicles, e.g.

trucks, for a prolonged time.

The two sensors for Blind Spot Assist are

integrated into the sides of the rear bumper.

Make sure that the bumper is free of dirt, ice

or slush in the vicinity of the sensors. For

example, the radar sensors must not be cov-

ered by bicycle racks or overhanging loads.

Following a severe impact or in the event of

damage to the bumpers, have the function of

the radar sensors checked at a qualified spe-

cialist workshop. Blind Spot Assist may oth-

erwise not work properly.

Indicator and warning display

Blind Spot Assist is not active at speeds below

approximately 20 mph (30 km/h). Vehicles in

the monitoring range are then not indicated.

Yellow indicator lamp/red warning lamp

When Blind Spot Assist is activated, indicator

lamp : in the exterior mirrors lights up yel-

low at speeds of up to 20 mph (30 km/h). At

speeds above 20 mph (30 km/h), the indica-

tor lamp goes out and Blind Spot Assist is

operational.

If a vehicle is detected within the monitoring

range of Blind Spot Assist at speeds above

20 mph (30 km/h), then warning lamp : on

the corresponding side lights up red. This

warning is always emitted when a vehicle

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199

Driving and parking

enters the blind spot monitoring range from

behind or from the side. When you overtake a

vehicle, the warning only occurs if the differ-

ence in speed is less than 7 mph (12 km/h).

The yellow indicator lamp goes out if reverse

gear is engaged. In this event, Blind Spot

Assist is no longer active.

The brightness of the indicator/warning

lamps is adjusted automatically according to

the ambient light.

Collision warning

If a vehicle is detected in the monitoring range

of Blind Spot Assist and you switch on the

corresponding turn signal, a double warning

tone sounds. Red warning lamp : flashes. If

the turn signal remains on, vehicles detected

are indicated by the flashing of red warning

lamp :. There are no further warning tones.

Switching on Blind Spot Assist

Make sure that Blind Spot Assist is activa-

ted in the on-board computer

(Y page 214).

Turn the SmartKey to position 2 in the igni-

tion lock.

Warning lamps : in the exterior mirrors

light up red for approximately 1.5 seconds

and then turn yellow.

Lane Keeping Assist

General notes

Lane Keeping Assist monitors the area in

front of your vehicle with camera :, which is

mounted at the top of the windshield. Active

Lane Keeping Assist detects lane markings on

the road and can warn you before you leave

your lane unintentionally.

This function is available in the range between

40 mph and 120 mph (60 km/h and

200 km/h).

A warning may be given if a front wheel

passes over a lane marking. It will warn you by

means of intermittent vibration in the steer-

ing wheel for up to 1.5 seconds.

Important safety notes

WARNING

Lane Keeping Assist may not always clearly

recognize lane markings.

In this case, Lane Keeping Assist may:

give an unnecessary warning

not give a warning

There is a risk of an accident.

Always pay particular attention to the traffic

situation and stay in lane, in particular if

warned by Lane Keeping Assist.

WARNING

The Lane Keeping Assist warning does not

return the vehicle to the original lane. There is

a risk of an accident.

You should always steer, brake or accelerate

yourself, in particular if warned by Lane Keep-

ing Assist.

If you fail to adapt your driving style, Lane

Keeping Assist can neither reduce the risk of

an accident nor override the laws of physics.

Lane Keeping Assist cannot take into account

the road, traffic and weather conditions. Lane

Keeping Assist is merely an aid. You are

responsible for the distance to the vehicle in

front, for vehicle speed, for braking in good

time and for staying in your lane.

The Lane Keeping Assist does not keep the

vehicle in the lane.

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Driving systems

Driving and parking

The system may be impaired or may not func-

tion if:

there is poor visibility, e.g. due to insuffi-

cient illumination of the road, or due to

snow, rain, fog or spray

there is glare, e.g. from oncoming traffic,

the sun or reflections (e.g. when the road

surface is wet)

the windshield is dirty, fogged up, damaged

or covered, for instance by a sticker, in the

vicinity of the camera

there are no, several or unclear lane mark-

ings for a lane, e.g. in areas with road con-

struction work

the lane markings are worn away, dark or

covered up, e.g. by dirt or snow

the distance to the vehicle in front is too

small and the lane markings thus cannot be

detected

the lane markings change quickly, e.g.

lanes branch off, cross one another or

merge

the road is narrow and winding

there are strong shadows cast on the lane

Switching on Lane Keeping Assist

Switch on Active Lane Keeping Assist using

the on-board computer; to do so, select

StandardStandard or AdaptiveAdaptive (Y page 214).

If you drive at speeds above 40 mph

(60 km/h) and lane markings are detected,

the lane markings in the assistance graph-

ics display (Y page 213) are shown in

green.

When Standard is selected, no warning vibra-

tion occurs if:

you switch on the turn signals. In this event,

the warnings are suppressed for a certain

period of time.

a driving safety system intervenes, such as

ABS, BAS or ESP

When Adaptive is selected, no warning vibra-

tion occurs if:

you switch on the turn signals. In this event,

the warnings are suppressed for a certain

period of time.

a driving safety system intervenes, e.g.

ABS, BAS or ESP

you accelerate hard, e.g. kickdown.

you brake hard.

you steer actively, e.g. swerve to avoid an

obstacle or change lanes quickly.

you cut the corner on a sharp bend.

In order that you are warned only when nec-

essary and in good time if you cross the lane

marking, the system recognizes certain con-

ditions and warns you accordingly.

The warning vibration occurs earlier if:

you approach the outer lane marking on a

bend.

the road has very wide lanes, e.g. a free-

way.

the system recognizes solid lane markings.

The warning vibration occurs later if:

the road has narrow lanes.

you cut the corner on a bend.

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201

Driving and parking

202

Driving and parking -> Driving systems for Your Mercedes GLA SUV First Generation (2013-2019)

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