2016-2019 Mercedes GLE SUV Safety -> Driving safety systems User Manual
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Safety -> Driving safety systems for Your Mercedes GLE SUV First Generation (2016-2019)

Driving safety systems70ABS (Anti-lock Braking System)Never leave animals unattended in the vehi-cle. Always secure animals correctly during aGeneral notesjourney, e.g. in an animal transport regulates brake pressure in such a way thatthe wheels do not lock when you brake. Thisallows you to continue steering the vehicle whenDriving safety safety systems overviewThe ! ABS warning lamp in the instrumentcluster lights up when the ignition is switchedSafetyIn this section, you will find information abouton. It goes out when the engine is following driving safety systems:ABS works from a speed of about 8 km/h,R ABS (Anti-lock Braking System)regardless of road-surface conditions. ABS( Y page 70)works on slippery surfaces, even when you onlybrake gently.R BAS (Brake Assist System) ( Y page 71)R Active Brake Assist ( Y page 71)Important safety notesR Adaptive Brake Lights ( Y page 74)R ESP ® (Electronic Stability Program)i Observe the "Important safety notes" sec-( Y page 74)tion ( Y page 70).R EBD (Electronic Brake force Distribution)G WARNING( Y page 76)If ABS is faulty, the wheels could lock whenR ADAPTIVE BRAKE ( Y page 76)braking. The steerability and braking charac-R Active Brake Assist with cross-traffic functionteristics may be severely impaired. Addition-( Y page 77)ally, further driving safety systems are deac-R Steering Pilot STEER CONTROLtivated. There is an increased danger of skid-( Y page 79)ding and on carefully. Have ABS checked imme-Important safety notesdiately at a qualified specialist you fail to adapt your driving style or if you areIf ABS is malfunctioning, other systems, includ-inattentive, the driving safety systems can nei-ing driving safety systems, will also becomether reduce the risk of an accident nor overrideinoperative. Observe the information on the ABSthe laws of physics. Driving safety systems arewarning lamp ( Y page 293) and display mes-merely aids designed to assist
Driving safety systems
70
ABS (Anti-lock Braking System)
Never leave animals unattended in the vehi-
cle. Always secure animals correctly during a
General notes
journey, e.g. in an animal transport box.
ABS regulates brake pressure in such a way that
the wheels do not lock when you brake. This
allows you to continue steering the vehicle when
Driving safety systems
braking.
Driving safety systems overview
The ! ABS warning lamp in the instrument
cluster lights up when the ignition is switched
Safety
In this section, you will find information about
on. It goes out when the engine is running.
the following driving safety systems:
ABS works from a speed of about 8 km/h,
R ABS (Anti-lock Braking System)
regardless of road-surface conditions. ABS
( Y page 70)
works on slippery surfaces, even when you only
brake gently.
R BAS (Brake Assist System) ( Y page 71)
R Active Brake Assist ( Y page 71)
Important safety notes
R Adaptive Brake Lights ( Y page 74)
R ESP ® (Electronic Stability Program)
i Observe the "Important safety notes" sec-
( Y page 74)
tion ( Y page 70).
R EBD (Electronic Brake force Distribution)
G WARNING
( Y page 76)
If ABS is faulty, the wheels could lock when
R ADAPTIVE BRAKE ( Y page 76)
braking. The steerability and braking charac-
R Active Brake Assist with cross-traffic function
teristics may be severely impaired. Addition-
( Y page 77)
ally, further driving safety systems are deac-
R Steering Pilot STEER CONTROL
tivated. There is an increased danger of skid-
( Y page 79)
ding and accidents.
Drive on carefully. Have ABS checked imme-
Important safety notes
diately at a qualified specialist workshop.
If you fail to adapt your driving style or if you are
If ABS is malfunctioning, other systems, includ-
inattentive, the driving safety systems can nei-
ing driving safety systems, will also become
ther reduce the risk of an accident nor override
inoperative. Observe the information on the ABS
the laws of physics. Driving safety systems are
warning lamp ( Y page 293) and display mes-
merely aids designed to assist driving. You are
sages which may be shown in the instrument
responsible for maintaining the distance to the
cluster ( Y page 259).
vehicle in front, for vehicle speed, for braking in
good time, and for staying in lane. Always adapt
Braking
your driving style to suit the prevailing road and
weather conditions and maintain a safe distance
X If ABS intervenes: continue to depress the
from the vehicle in front. Drive carefully.
brake pedal with force until the braking sit-
The driving safety systems described only work
uation is over.
as effectively as possible when there is ade-
X To make a full brake application: depress
quate contact between the tyres and the road
the brake pedal with full force.
surface. Pay particular attention to the informa-
tion regarding tyres, recommended minimum
If ABS intervenes when braking, you will feel a
tyre tread depths etc. in the "Wheels and tyres"
pulsing in the brake pedal.
section ( Y page 367).
The pulsating brake pedal can be an indication
In wintry driving conditions, always use winter
of hazardous road conditions; this serves as a
tyres (M+S tyres) and, if necessary, snow
reminder to take extra care while driving.
chains. Only in this way will the driving safety
systems described in this section work as effec-
tively as possible.
Driving safety systems71Off-road ABSActive Brake AssistAn ABS system specifically suited to off-roadGeneral informationterrain is activated automatically once an off-road program is activated:i Observe the "Important safety notes" sec-tion ( Y page 70).R Vehicles without the Off-Road Engineeringpackage ( Y page 226)Active Brake Assist consists of a distance warn-R Vehicles with the Off-Road Engineering pack-ing function with an autonomous braking func-age ( Y page 227)tion and braking assistance appropriate to speeds below 30 km/h the front wheels lockcyclically during braking. The digging-in effectActive Brake Assist can help you to minimise theachieved in the process reduces the stoppingdanger of collision with the vehicle in front ordistance when driving off-road. This limits steer-reduce the effects of such a Active Brake Assist detects that there is a riskof collision, you will be warned visually andacoustically. If you do not react to the visual andBAS (Brake Assist System)audible collision warning, autonomous brakingcan be initiated in critical situations. If you applyGeneral notesthe brake yourself in a critical situation, Adap-tive Brake Assist supports you with brakingBAS operates in emergency braking appropriate to the you depress the brake pedal quickly, BASActive Brake Assist is only available in certainautomatically boosts the braking force, the stopping safety notesImportant safety notesIn particular, the detection of obstacles can bei Observe the "Important safety notes" sec-impaired in the following situations:tion ( Y page 70).R dirt on the sensors or obscured sensorsG WARNINGR snow or heavy rainIf BAS is malfunctioning, the braking distanceR interference by other radar sourcesin an emergency braking situation isR strong radar reflections for example, in multi-increased. There is a risk of car parksR a nar
Driving safety systems
71
Off-road ABS
Active Brake Assist
An ABS system specifically suited to off-road
General information
terrain is activated automatically once an off-
road program is activated:
i Observe the "Important safety notes" sec-
tion ( Y page 70).
R Vehicles without the Off-Road Engineering
package ( Y page 226)
Active Brake Assist consists of a distance warn-
R Vehicles with the Off-Road Engineering pack-
ing function with an autonomous braking func-
age ( Y page 227)
tion and braking assistance appropriate to the
Safety
situation.
At speeds below 30 km/h the front wheels lock
cyclically during braking. The digging-in effect
Active Brake Assist can help you to minimise the
achieved in the process reduces the stopping
danger of collision with the vehicle in front or
distance when driving off-road. This limits steer-
reduce the effects of such a collision.
ing capability.
If Active Brake Assist detects that there is a risk
of collision, you will be warned visually and
acoustically. If you do not react to the visual and
BAS (Brake Assist System)
audible collision warning, autonomous braking
can be initiated in critical situations. If you apply
General notes
the brake yourself in a critical situation, Adap-
tive Brake Assist supports you with braking
BAS operates in emergency braking situations.
assistance appropriate to the situation.
If you depress the brake pedal quickly, BAS
Active Brake Assist is only available in certain
automatically boosts the braking force, thus
countries.
shortening the stopping distance.
Important safety notes
Important safety notes
In particular, the detection of obstacles can be
i Observe the "Important safety notes" sec-
impaired in the following situations:
tion ( Y page 70).
R dirt on the sensors or obscured sensors
G WARNING
R snow or heavy rain
If BAS is malfunctioning, the braking distance
R interference by other radar sources
in an emergency braking situation is
R strong radar reflections for example, in multi-
increased. There is a risk of accident.
storey car parks
R a narrow vehicle travelling in front, e.g. a
In an emergency braking situation, depress
motorcycle
the brake pedal with full force. ABS prevents
R a vehicle travelling in front on a different line
the wheels from locking.
R new vehicles or after servicing is carried out
on the Active Brake Assist system
Braking
Please observe the information in the section
on running-in the vehicle ( Y page 143).
X Keep the brake pedal depressed firmly until
the emergency braking situation is over.
Following damage to the front end of the vehicle,
ABS prevents the wheels from locking.
have the configuration and operation of the
radar sensor checked at a qualified specialist
The brakes will function as usual once you
workshop. This also applies to collisions at low
release the brake pedal. BAS is deactivated.
speeds where there is no visible damage to the
front of the vehicle.
Activating/deactivating
Active Brake Assist is automatically active after
switching on the ignition.
Z
Driving safety systems72You can activate or deactivate Active BrakeThere is a risk of an ( Y page 250) in the on-board pay careful attention to the traffic sit-When the system is deactivated, the distanceuation; do not rely on the distance warningwarning function and the autonomous brakingfunction are also Active Brake Assist is deactivated, the æFunctionsymbol appears in the assistance graphic distance warning function issues a warningat speeds:If DSR ( Y page 225) is activated, Active BrakeSafetyAssist is deactivated.R of approximately 30 km/h or more, if, overseveral seconds, the distance maintained toDistance warning functionthe vehicle travelling in front is · distance warning lamp then lightsGeneral informationup in the instrument cluster.R of approximately 7 km/h or more, if you rap-The distance warning function can help you toidly approach a vehicle in front. An intermit-minimise the danger of collision with the vehicletent warning tone will then sound and thein front or reduce the effects of such a collision.· distance warning lamp will light up in theIf the distance warning function detects a risk ofinstrument with the vehicle in front, you will bewarned visually and audibly.X Brake immediately to increase the distancefrom the vehicle in safety notesori Observe the "Important safety notes" sec-X Take evasive action provided it is safe to dotion for driving safety systems ( Y page 70).so.G WARNINGDue to the nature of the system, certain com-plex but non-critical driving conditions may alsoThe distance warning function does not react:cause the system to display a warning.R to people or animalsWith the help of the radar sensor system, theR to oncoming vehiclesdistance warning function can detect obstaclesthat are in the path of your vehicle for an exten-R to crossing trafficded period of time.R when corneringUp to a speed of approximat
Driving safety systems
72
You can activate or deactivate Active Brake
There is a risk of an accident.
Assist ( Y page 250) in the on-board computer.
Always pay careful attention to the traffic sit-
When the system is deactivated, the distance
uation; do not rely on the distance warning
warning function and the autonomous braking
function are also deactivated.
function alone.
If Active Brake Assist is deactivated, the æ
Function
symbol appears in the assistance graphic dis-
play.
The distance warning function issues a warning
at speeds:
If DSR ( Y page 225) is activated, Active Brake
Safety
Assist is deactivated.
R of approximately 30 km/h or more, if, over
several seconds, the distance maintained to
Distance warning function
the vehicle travelling in front is insufficient.
The · distance warning lamp then lights
General information
up in the instrument cluster.
R of approximately 7 km/h or more, if you rap-
The distance warning function can help you to
idly approach a vehicle in front. An intermit-
minimise the danger of collision with the vehicle
tent warning tone will then sound and the
in front or reduce the effects of such a collision.
· distance warning lamp will light up in the
If the distance warning function detects a risk of
instrument cluster.
collision with the vehicle in front, you will be
warned visually and audibly.
X Brake immediately to increase the distance
from the vehicle in front.
Important safety notes
or
i Observe the "Important safety notes" sec-
X Take evasive action provided it is safe to do
tion for driving safety systems ( Y page 70).
so.
G WARNING
Due to the nature of the system, certain com-
plex but non-critical driving conditions may also
The distance warning function does not react:
cause the system to display a warning.
R to people or animals
With the help of the radar sensor system, the
R to oncoming vehicles
distance warning function can detect obstacles
that are in the path of your vehicle for an exten-
R to crossing traffic
ded period of time.
R when cornering
Up to a speed of approximately 70 km/h, the
The distance warning function may not give
distance warning function can also react to sta-
warnings in all critical situations. There is a
tionary obstacles, such as stopped or parked
vehicles.
risk of an accident.
Always pay careful attention to the traffic sit-
Autonomous braking function
uation and be ready to brake.
If the driver does not react to the distance warn-
Always adapt your speed to suit the prevailing
ing signal in a critical situation, Active Brake
road and traffic conditions.
Assist can assist the driver with the autonomous
braking function.
G WARNING
Vehicles without Distance Pilot DISTRONIC:
The distance warning function cannot always
the autonomous braking function is available in
clearly identify objects and complex traffic
the following speed ranges:
situations.
R 7 - 105 km/h for moving objects
In such cases, the distance warning function
R 7 - 50 km/h for stationary objects
may:
R give an unnecessary warning
R not give a warning
Driving safety systems73Vehicles with Distance Pilot DISTRONIC: theThe brakes will work normally again if:autonomous braking function is available in theR you release the brake pedalfollowing speed ranges:R a danger of collision with the vehicle in frontR 7 - 200 km/h for moving objectsno longer existsR 7 - 50 km/h for stationary objectsR no obstacle is detected in the path of yourDue to the nature of the system, complex butvehiclenon-critical driving conditions may also causeBraking assistance appropriate to the situationthe autonomous braking function to then the autonomous braking function demandsSafetyImportant safety notesparticularly high braking force, preventativepassenger protection measures (PRE-SAFE ® )i Observe the "Important safety notes" sec-are activated simultaneously ( Y page 58).tion for driving safety systems ( Y page 70).G WARNINGBraking assistance appropriate to theAdaptive Brake Assist cannot always clearlysituationidentify objects and complex traffic situa-General such cases, Adaptive Brake Assist might:i Observe the "Important safety notes" sec-tion ( Y page 70).R intervene unnecessarilyWith the help of the radar sensor system, Adap-R not intervenetive Brake Assist can detect obstacles that are inThe risk of an accident path of your vehicle for an extended periodof pay careful attention to the traffic sit-If Adaptive Brake Assist detects a risk of colli-uation and be ready to brake. Terminate thesion with the vehicle in front, it calculates theintervention in a non-critical driving pressure necessary to avoid a collision. Ifyou apply the brakes forcefully, the brakingG WARNINGassistance adapts to the situation and automat-Adaptive Brake Assist does not react:ically increases the brake pressure to a degreeappropriate to the traffic situation.R to people or animalsBraking assistance appropriate to the situationR to oncoming vehiclesis provided in hazardous situ
Driving safety systems
73
Vehicles with Distance Pilot DISTRONIC: the
The brakes will work normally again if:
autonomous braking function is available in the
R you release the brake pedal
following speed ranges:
R a danger of collision with the vehicle in front
R 7 - 200 km/h for moving objects
no longer exists
R 7 - 50 km/h for stationary objects
R no obstacle is detected in the path of your
Due to the nature of the system, complex but
vehicle
non-critical driving conditions may also cause
Braking assistance appropriate to the situation
the autonomous braking function to engage.
is then deactivated.
If the autonomous braking function demands
Safety
Important safety notes
particularly high braking force, preventative
passenger protection measures (PRE-SAFE ® )
i Observe the "Important safety notes" sec-
are activated simultaneously ( Y page 58).
tion for driving safety systems ( Y page 70).
G WARNING
Braking assistance appropriate to the
Adaptive Brake Assist cannot always clearly
situation
identify objects and complex traffic situa-
General information
tions.
In such cases, Adaptive Brake Assist might:
i Observe the "Important safety notes" sec-
tion ( Y page 70).
R intervene unnecessarily
With the help of the radar sensor system, Adap-
R not intervene
tive Brake Assist can detect obstacles that are in
The risk of an accident remains.
the path of your vehicle for an extended period
of time.
Always pay careful attention to the traffic sit-
If Adaptive Brake Assist detects a risk of colli-
uation and be ready to brake. Terminate the
sion with the vehicle in front, it calculates the
intervention in a non-critical driving situation.
brake pressure necessary to avoid a collision. If
you apply the brakes forcefully, the braking
G WARNING
assistance adapts to the situation and automat-
Adaptive Brake Assist does not react:
ically increases the brake pressure to a degree
appropriate to the traffic situation.
R to people or animals
Braking assistance appropriate to the situation
R to oncoming vehicles
is provided in hazardous situations at speeds
above 7 km/h. It uses the radar sensor system
R to crossing traffic
to assess the traffic situation.
R when cornering
Braking assistance appropriate to the situation
As a result, Adaptive Brake Assist may not
is capable of reacting to moving objects which
intervene in all critical conditions. The risk of
have already been recognised as such at least
an accident remains.
once over the period of observation, up to vehi-
cle speeds of around 250 km/h.
Always pay careful attention to the traffic sit-
Braking assistance appropriate to the situation
uation and be ready to brake.
reacts to stationary obstacles up to a speed of
approximately 70 km/h.
Due to the nature of the system, complex but
If braking assistance appropriate to the situa-
non-critical driving conditions may also cause
tion demands particularly high brake pressure,
Active Brake Assist to intervene.
preventative passenger protection measures
Even if Active Brake Assist is not available due to
(PRE-SAFE ® ) are triggered simultaneously
a malfunction in the radar sensor system, the
( Y page 58).
brake system is still available with full brake
boosting effect and BAS.
X Keep the brake pedal depressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
Z
Driving safety systems74In appropriate driving situations, activate theAdaptive brake lightsoff-road programs:The adaptive brake lights warn the traffic behindX Vehicles without the Off-Road Engineeringin an emergency braking situation by:package ( Y page 226)R flashing the brake lampsX Vehicles with the Off-Road Engineering pack-R activating the hazard warning lampsage ( Y page 227)If you brake sharply from a speed greater than50 km/h or if braking is assisted by BAS orOff-road 4ETS (Electronic Traction Sys-Brake Assist, the brake lamps flash rapidly. Intem)Safetythis way, traffic behind you is warned in an evenmore noticeable ETS system specifically suited to off-roadIf you brake sharply from a speed greater thanterrain is activated automatically once an off-70 km/h to a standstill, the hazard warningroad program is activated:lamps are switched on automatically at stand-R Vehicles without the Off-Road Engineeringstill. If the brakes are applied again, the brakepackage ( Y page 226)lamps light up continuously. The hazard warningR Vehicles with the Off-Road Engineering pack-lamps switch off automatically if you travel at aage ( Y page 227)speed greater than 10 km/h. You can alsoswitch off the hazard warning lamps using theImportant safety noteswarning lamp button ( Y page 119).G WARNINGESP ® (Electronic Stability Program)If ESP ® is malfunctioning, ESP ® is unable tostabilise the vehicle. In addition, other drivingGeneral notessafety systems are switched off. This increa-ses the risk of skidding and an accident.i Observe the "Important safety notes" sec-tion ( Y page 70).Drive on carefully. Have ESP ® checked at aqualified specialist ® monitors driving stability and traction, transmission between the tyres and theroad surface.! Only operate the vehicle for a maximum often seconds on a brake dynamometer. SwitchIf ESP ® detects that the vehicle is deviating fromoff the direction desired by the driver, one or morewheels are
Driving safety systems
74
In appropriate driving situations, activate the
Adaptive brake lights
off-road programs:
The adaptive brake lights warn the traffic behind
X Vehicles without the Off-Road Engineering
in an emergency braking situation by:
package ( Y page 226)
R flashing the brake lamps
X Vehicles with the Off-Road Engineering pack-
R activating the hazard warning lamps
age ( Y page 227)
If you brake sharply from a speed greater than
50 km/h or if braking is assisted by BAS or
Off-road 4ETS (Electronic Traction Sys-
Brake Assist, the brake lamps flash rapidly. In
tem)
Safety
this way, traffic behind you is warned in an even
more noticeable manner.
An ETS system specifically suited to off-road
If you brake sharply from a speed greater than
terrain is activated automatically once an off-
70 km/h to a standstill, the hazard warning
road program is activated:
lamps are switched on automatically at stand-
R Vehicles without the Off-Road Engineering
still. If the brakes are applied again, the brake
package ( Y page 226)
lamps light up continuously. The hazard warning
R Vehicles with the Off-Road Engineering pack-
lamps switch off automatically if you travel at a
age ( Y page 227)
speed greater than 10 km/h. You can also
switch off the hazard warning lamps using the
Important safety notes
warning lamp button ( Y page 119).
G WARNING
ESP ® (Electronic Stability Program)
If ESP ® is malfunctioning, ESP ® is unable to
stabilise the vehicle. In addition, other driving
General notes
safety systems are switched off. This increa-
ses the risk of skidding and an accident.
i Observe the "Important safety notes" sec-
tion ( Y page 70).
Drive on carefully. Have ESP ® checked at a
qualified specialist workshop.
ESP ® monitors driving stability and traction, i.e.
power transmission between the tyres and the
road surface.
! Only operate the vehicle for a maximum of
ten seconds on a brake dynamometer. Switch
If ESP ® detects that the vehicle is deviating from
off the ignition.
the direction desired by the driver, one or more
wheels are braked to stabilise the vehicle. The
Application of the brakes by ESP ® may oth-
engine output is also modified to keep the vehi-
erwise destroy the brake system.
cle on the desired course within physical limits.
! A function or performance test should only
ESP ® assists the driver when pulling away on
be carried out on a twin-axle dynamometer.
wet or slippery roads. ESP ® can also stabilise
Before you operate the vehicle on such a
the vehicle during braking.
dynamometer, please consult a qualified
workshop. You could otherwise damage the
ETS/4ETS (Electronic Traction System)
drive train or the brake system.
When ESP ® is deactivated, the å ESP ® OFF
ETS traction control is part of ESP ® . On vehicles
warning lamp lights up continuously.
with 4MATIC, 4ETS is a component of ESP ® .
If the ÷ warning lamp and the å warning
Traction control brakes the drive wheels indi-
lamp are lit continuously, ESP ® is not available
vidually if they spin. This enables you to pull
due to a malfunction.
away and accelerate on slippery surfaces, for
example if the road surface is slippery on one
Observe the information on warning lamps
side. In addition, more drive torque is transfer-
( Y page 295) and display messages which may
red to the wheel or wheels with traction.
be shown in the instrument cluster
( Y page 259).
Traction control remains active if you deactivate
ESP ® .
Driving safety systems75i Only use wheels with the recommended tyreIt may be best to deactivate ESP ® in the follow-ing situations:sizes. Only then will ESP ® function properly.R when snow chains are usedCharacteristics of ESP ®R in deep snowR on sand or gravelGeneral notesSpinning the wheels results in a cutting action,If the ÷ ESP warning lamp goes out beforewhich enhances the journey, ESP ® is automaticallyi Activate ESP ® as soon as the above no longer apply. ESP ® willIf ESP ® intervenes, the ÷ ESP ® warning lampotherwise not be able to stabilise the vehicleflashes in the instrument the vehicle starts to skid or a wheel starts toIf ESP ® intervenes:spin.X Do not deactivate ESP ® under any circum-Deactivating/activating ESP ®stances.X When pulling away, only depress the acceler-ator pedal as far as is necessary.X Adapt your driving style to suit the prevailingroad and weather start/stop functionThe ECO start/stop function switches theengine off automatically if the vehicle stopsmoving. When pulling away again, the enginestarts automatically. ESP ® remains in its previ-ously selected status, e.g. if ESP ® was deacti-vated before the engine was automaticallyX To deactivate: press button :.switched å ESP ® OFF warning lamp on theinstrument cluster lights ESP ®X To activate: press button :.Important safety notesThe å ESP ® OFF warning lamp on theinstrument cluster goes out.i Observe the "Important safety notes" sec-tion ( Y page 70).Characteristics when ESP ® is deactivatedYou can select between the following ESP ® sta-If ESP ® is deactivated and one or more wheelstuses:start to spin, the ÷ ESP ® warning lamp in theR ESP ® is activatedinstrument cluster flashes. In such situations,ESP ® will not stabilise the vehicle.R ESP ® is deactivatedIf you deactivate ESP ® :G WARNINGR ESP ® no longer improves driving stabilityIf you deactivate ESP ® , ESP ® no longe
Driving safety systems
75
i Only use wheels with the recommended tyre
It may be best to deactivate ESP ® in the follow-
ing situations:
sizes. Only then will ESP ® function properly.
R when snow chains are used
Characteristics of ESP ®
R in deep snow
R on sand or gravel
General notes
Spinning the wheels results in a cutting action,
If the ÷ ESP warning lamp goes out before
which enhances traction.
beginning the journey, ESP ® is automatically
i Activate ESP ® as soon as the situations
active.
Safety
described above no longer apply. ESP ® will
If ESP ® intervenes, the ÷ ESP ® warning lamp
otherwise not be able to stabilise the vehicle
flashes in the instrument cluster.
if the vehicle starts to skid or a wheel starts to
If ESP ® intervenes:
spin.
X Do not deactivate ESP ® under any circum-
Deactivating/activating ESP ®
stances.
X When pulling away, only depress the acceler-
ator pedal as far as is necessary.
X Adapt your driving style to suit the prevailing
road and weather conditions.
ECO start/stop function
The ECO start/stop function switches the
engine off automatically if the vehicle stops
moving. When pulling away again, the engine
starts automatically. ESP ® remains in its previ-
ously selected status, e.g. if ESP ® was deacti-
vated before the engine was automatically
X To deactivate: press button :.
switched off.
The å ESP ® OFF warning lamp on the
instrument cluster lights up.
Activating/deactivating ESP ®
X To activate: press button :.
Important safety notes
The å ESP ® OFF warning lamp on the
instrument cluster goes out.
i Observe the "Important safety notes" sec-
tion ( Y page 70).
Characteristics when ESP ® is deactivated
You can select between the following ESP ® sta-
If ESP ® is deactivated and one or more wheels
tuses:
start to spin, the ÷ ESP ® warning lamp in the
R ESP ® is activated
instrument cluster flashes. In such situations,
ESP ® will not stabilise the vehicle.
R ESP ® is deactivated
If you deactivate ESP ® :
G WARNING
R ESP ® no longer improves driving stability
If you deactivate ESP ® , ESP ® no longer sta-
R engine torque is no longer limited and the
bilises the vehicle. There is an increased risk
drive wheels may start to spin
of skidding and an accident.
R traction control is still activated
Only deactivate ESP ® in the situations descri-
R Active Brake Assist is no longer available; it is
bed in the following.
not activated even if you brake firmly with
assistance from ESP ®
R PRE-SAFE ® is no longer available; it is not
activated even if you brake firmly with assis-
tance from ESP ®
Z
Driving safety systems76Crosswind AssistR Active Brake Assist with cross-traffic functionis no longer available; it is not activated evenGeneral notesif you brake firmly with assistance from ESP ®R ESP ® continues to provide assistance whenStrong crosswind gusts can impair the ability ofthe brakes are firmly appliedyour vehicle to drive straight ahead. The cross-wind driving assistance function integrated inESP ® noticeably reduces these -road ESP ® (vehicles with Off-RoadDepending on the direction and intensity of theEngineering package)side wind, ESP ® is activated ESP ® system specifically suited to off-roadESP ® intervenes with stabilising braking toterrain is activated automatically once an off-assist you in keeping the vehicle in the program is Assist is active at vehicle speedsR Vehicles without the Off-Road Engineeringabove 80 km/h when driving straight ahead orpackage ( Y page 226)cornering gently.R Vehicles with the Off-Road Engineering pack-Important safety notesage ( Y page 227)Crosswind Assist does not work if ESP ® is deac-Off-road ESP ® intervenes with a delay if there istivated or disabled because of a or understeering, thus (electronic brake force distribu-ESP ® trailer stabilisationtion)General notesGeneral notesESP ® trailer stabilisation is not available inMercedes-AMG monitors and controls the brake pressureon the rear wheels to improve driving stabilityIf your vehicle/trailer combination begins towhile , ESP ® assists you in this situation. ESP ®slows the vehicle down by braking and limitingImportant safety notesthe engine output until the vehicle/trailer com-bination has stabilised.i Observe the "Important safety notes" sec-Important safety notestion for driving safety systems ( Y page 70).G WARNINGG WARNINGIf road and weather conditions are poor,If EBD is malfunctioning, the rear wheels cantrailer stabil
Driving safety systems
76
Crosswind Assist
R Active Brake Assist with cross-traffic function
is no longer available; it is not activated even
General notes
if you brake firmly with assistance from ESP ®
R ESP ® continues to provide assistance when
Strong crosswind gusts can impair the ability of
the brakes are firmly applied
your vehicle to drive straight ahead. The cross-
wind driving assistance function integrated in
ESP ® noticeably reduces these impairments.
Off-road ESP ® (vehicles with Off-Road
Depending on the direction and intensity of the
Engineering package)
side wind, ESP ® is activated automatically.
Safety
An ESP ® system specifically suited to off-road
ESP ® intervenes with stabilising braking to
terrain is activated automatically once an off-
assist you in keeping the vehicle in the lane.
road program is activated.
Crosswind Assist is active at vehicle speeds
R Vehicles without the Off-Road Engineering
above 80 km/h when driving straight ahead or
package ( Y page 226)
cornering gently.
R Vehicles with the Off-Road Engineering pack-
Important safety notes
age ( Y page 227)
Crosswind Assist does not work if ESP ® is deac-
Off-road ESP ® intervenes with a delay if there is
tivated or disabled because of a malfunction.
oversteering or understeering, thus improving
traction.
EBD (electronic brake force distribu-
ESP ® trailer stabilisation
tion)
General notes
General notes
ESP ® trailer stabilisation is not available in
Mercedes-AMG vehicles.
EBD monitors and controls the brake pressure
on the rear wheels to improve driving stability
If your vehicle/trailer combination begins to
while braking.
lurch, ESP ® assists you in this situation. ESP ®
slows the vehicle down by braking and limiting
Important safety notes
the engine output until the vehicle/trailer com-
bination has stabilised.
i Observe the "Important safety notes" sec-
Important safety notes
tion for driving safety systems ( Y page 70).
G WARNING
G WARNING
If road and weather conditions are poor,
If EBD is malfunctioning, the rear wheels can
trailer stabilisation will not be able to prevent
lock, e.g. under full braking. This increases the
the vehicle/trailer combination from swerv-
risk of skidding and an accident.
ing. Trailers with a high centre of gravity can
You should therefore adapt your driving style
tip over before ESP ® can detect this. There is
to the different handling characteristics. Have
a risk of an accident.
the brake system checked at a qualified spe-
Always adapt your driving style to the prevail-
cialist workshop.
ing road and weather conditions.
Observe information regarding indicator and
warning lamps ( Y page 293) as well as display
If your vehicle/trailer combination begins to
messages ( Y page 261).
lurch, you can only stabilise the vehicle/trailer
combination by depressing the brake firmly.
Trailer stabilisation is active above speeds of
ADAPTIVE BRAKE
about 60 km/h.
ESP ® trailer stabilisation does not work if ESP ®
ADAPTIVE BRAKE enhances braking safety and
is deactivated or disabled because of a malfunc-
offers increased braking comfort. In addition to
tion.
Driving safety systems77Important safety notesthe braking function, ADAPTIVE BRAKE also hasthe HOLD function ( Y page 193) and hill startG WARNINGassist ( Y page 147).Active Brake Assist with cross-traffic functionwill initially brake your vehicle by a partialActive Brake Assist with cross-trafficapplication of the brakes if a danger of colli-functionsion is detected. There may be a collisionunless you brake yourself. Even after subse-General informationquent full application of the brakes a collisionSafetyi Read the important safety notes in the "Driv-cannot always be avoided, particularly whening safety systems" section ( Y page 70).approaching at too high a speed. There is aActive Brake Assist with cross-traffic functionrisk of an help you to minimise the risk of a collisionAlways apply the brakes yourself and try towith a vehicle in front or a pedestrian and reducetake evasive action, provided it is safe to dothe effects of such a collision. If the Active with cross-traffic function detects a riskof collision, you will be warned visually andIf you partially apply the brakes, the vehicle isacoustically and, if necessary, your brake appli-braked with up to 50% of the full brake will be assisted according to the situa-tion. If you do not react, the system can alsoG WARNINGreact by braking automatically. In the event of aActive Brake Assist with cross-traffic functiondetected risk of collision due to crossing traffic,you will also be visually and acoustically warnedcannot always clearly identify objects andas well as assisted by the brake boosting effectcomplex traffic to the such cases, Active Brake Assist with cross-Active Brake Assist with cross-traffic function istraffic function might:only available in vehicles with the Driving Assis-tance Plus package.R issue an unnecessary warning or engageFor Active Brake Assist with cross-traffic func-R neither issue a warning nor intervenetion to
Driving safety systems
77
Important safety notes
the braking function, ADAPTIVE BRAKE also has
the HOLD function ( Y page 193) and hill start
G WARNING
assist ( Y page 147).
Active Brake Assist with cross-traffic function
will initially brake your vehicle by a partial
Active Brake Assist with cross-traffic
application of the brakes if a danger of colli-
function
sion is detected. There may be a collision
unless you brake yourself. Even after subse-
General information
quent full application of the brakes a collision
Safety
i Read the important safety notes in the "Driv-
cannot always be avoided, particularly when
ing safety systems" section ( Y page 70).
approaching at too high a speed. There is a
Active Brake Assist with cross-traffic function
risk of an accident.
can help you to minimise the risk of a collision
Always apply the brakes yourself and try to
with a vehicle in front or a pedestrian and reduce
take evasive action, provided it is safe to do
the effects of such a collision. If the Active Brake
so.
Assist with cross-traffic function detects a risk
of collision, you will be warned visually and
If you partially apply the brakes, the vehicle is
acoustically and, if necessary, your brake appli-
braked with up to 50% of the full brake pressure.
cation will be assisted according to the situa-
tion. If you do not react, the system can also
G WARNING
react by braking automatically. In the event of a
Active Brake Assist with cross-traffic function
detected risk of collision due to crossing traffic,
you will also be visually and acoustically warned
cannot always clearly identify objects and
as well as assisted by the brake boosting effect
complex traffic situations.
according to the situation.
In such cases, Active Brake Assist with cross-
Active Brake Assist with cross-traffic function is
traffic function might:
only available in vehicles with the Driving Assis-
tance Plus package.
R issue an unnecessary warning or engage
For Active Brake Assist with cross-traffic func-
R neither issue a warning nor intervene
tion to assist you when driving, the radar sensor
There is a risk of an accident.
system and the camera system must be opera-
Always pay particular attention to the traffic
tional.
situation and be prepared to brake, especially
If the radar sensor system or the camera system
is malfunctioning, Active Brake Assist with
if Active Brake Assist with cross-traffic func-
cross-traffic function is restricted or no longer
tion alerts you. Terminate the intervention in a
available. The brake system is still available with
non-critical driving situation.
complete brake boosting effect and BAS.
The radar sensor system and camera system
G WARNING
help Active Brake Assist with cross-traffic func-
Active Brake Assist with cross-traffic function
tion to detect obstacles that are in the path of
your vehicle for an extended period of time.
cannot always clearly identify people, partic-
ularly if they are moving. Active Brake Assist
Pedestrians in the path of your vehicle can also
be detected.
with cross-traffic function cannot intervene in
Active Brake Assist with cross-traffic function
these cases. There is a risk of an accident.
detects pedestrians using typical characteris-
Always pay particular attention to the traffic
tics such as body contours and the posture of a
situation and be prepared to brake, especially
person standing upright.
if Active Brake Assist with cross-traffic func-
i Observe the restrictions described in the
tion alerts you.
"Important safety notes" section
( Y page 77).
Z
Driving safety systems78To maintain the appropriate distance to theradar sensors checked at a qualified specialistvehicle in front and thus prevent a collision, youworkshop. This also applies to collisions at lowmust apply the brakes where no damage to the front of thevehicle is visible.G WARNINGFollowing damage to the windscreen, have theActive Brake Assist with cross-traffic functionconfiguration and operation of the camera sys-does not react:tem checked at a qualified specialist workshop.R to small people, e.g. childrenFunctionSafetyR to animalsX To activate or deactivate: activate or deac-R to oncoming vehiclestivate Active Brake Assist with cross-trafficR when corneringfunction using the on-board computerAs a result, Active Brake Assist with cross-( Y page 250).If the Active Brake Assist with cross-traffictraffic function may not warn you or engage infunction is deactivated, the æ symbolall critical situations. There is a risk of an acci-appears in the multifunction you have activated DSR ( Y page 225), theAlways pay careful attention to the traffic sit-Active Brake Assist with cross-traffic function isuation and be ready to function issues a warning:In the event of snowfall or heavy rain, detectioncan be impaired.R at a speed of approximately 30 km/h orhigher, the distance maintained to the vehicleDetection by the radar sensor system is alsotravelling in front is insufficient for severalimpaired in the following situations:seconds.R dirt on the sensors or obscured sensorsThe · distance warning lamp then lightsR interference by other radar sourcesup in the instrument cluster.R strong radar reflections, for example, in multi-R at a speed of approximately 7 km/h or more,storey car parksyou rapidly approach a vehicle in front or aR a narrow vehicle travelling in front, e.g. apedestrianmotorcycleAn intermittent warning tone will then soundR a vehicle travelling in front on a different lineand the · distance war
Driving safety systems
78
To maintain the appropriate distance to the
radar sensors checked at a qualified specialist
vehicle in front and thus prevent a collision, you
workshop. This also applies to collisions at low
must apply the brakes yourself.
speeds where no damage to the front of the
vehicle is visible.
G WARNING
Following damage to the windscreen, have the
Active Brake Assist with cross-traffic function
configuration and operation of the camera sys-
does not react:
tem checked at a qualified specialist workshop.
R to small people, e.g. children
Function
Safety
R to animals
X To activate or deactivate: activate or deac-
R to oncoming vehicles
tivate Active Brake Assist with cross-traffic
R when cornering
function using the on-board computer
As a result, Active Brake Assist with cross-
( Y page 250).
If the Active Brake Assist with cross-traffic
traffic function may not warn you or engage in
function is deactivated, the æ symbol
all critical situations. There is a risk of an acci-
appears in the multifunction display.
dent.
If you have activated DSR ( Y page 225), the
Always pay careful attention to the traffic sit-
Active Brake Assist with cross-traffic function is
uation and be ready to brake.
deactivated.
This function issues a warning:
In the event of snowfall or heavy rain, detection
can be impaired.
R at a speed of approximately 30 km/h or
higher, the distance maintained to the vehicle
Detection by the radar sensor system is also
travelling in front is insufficient for several
impaired in the following situations:
seconds.
R dirt on the sensors or obscured sensors
The · distance warning lamp then lights
R interference by other radar sources
up in the instrument cluster.
R strong radar reflections, for example, in multi-
R at a speed of approximately 7 km/h or more,
storey car parks
you rapidly approach a vehicle in front or a
R a narrow vehicle travelling in front, e.g. a
pedestrian
motorcycle
An intermittent warning tone will then sound
R a vehicle travelling in front on a different line
and the · distance warning lamp will light
R vehicles quickly moving into the radar sensor
up on the instrument cluster.
system detection range
X Brake immediately to defuse the situation.
Detection by the camera system is also impaired
or
in the following situations:
X Take evasive action provided it is safe to do
R dirt on the camera or if the camera is covered
so.
R glare on the camera system, e.g. from the sun
Active Brake Assist with cross-traffic function
being low in the sky
can also brake the vehicle automatically under
R darkness
the following conditions:
R if:
R the driver and front passenger have their seat
pedestrians move quickly, e.g. into the path
belts fastened
-
of the vehicle
and
- the camera system no longer detects a
R the vehicle speed is between approximately
pedestrian as a person due to special cloth-
7 km/h and 200 km/h
ing or other objects
- a pedestrian is concealed by other objects
- the typical outline of a person is not distin-
guishable from the background
Following damage to the front end of the vehicle,
have the configuration and operation of the
Driving safety systems79Up to a speed of approximately 70 km/h, ActiveUp to a speed of approximately 70 km/h, theBrake Assist with cross-traffic function mayActive Brake Assist with cross-traffic functionreact to:assists you with braking in hazardous situationswith:R stationary objects in the path of your vehicle,such as stopped or parked vehiclesR stationary obstacles in the path of the vehicle,e.g. stopped or parked vehiclesR pedestrians in the path of your vehicleR stationary pedestrians in the path of the vehi-i If an increased danger of collision exists,clepreventative passenger protection measuresR obstacles crossing your path that move in theSafety(PRE-SAFE ® ) are triggered ( Y page 58).detection range of the sensors and are detec-If the risk of collision remains and you do , take evasive action or accelerate quickly,X Keep the brake pedal depressed until thethe vehicle may perform automatic braking up toemergency braking situation is point of a full brake application. An auto-ABS prevents the wheels from full brake application is not performedYou can prevent the intervention of Active Brakeuntil immediately prior to an imminent with cross-traffic function at any time by:If you apply the brake yourself in a critical sit-uation or during autonomous braking, brakingR depressing the accelerator pedal furtherassistance is provided according to the situa-R activating kickdowntion. If necessary, this increases the brake pres-R releasing the brake pedalsure up to full brake braking application of Active Brake AssistTo avoid a collision, Active Brake Assist withwith cross-traffic function is ended automati-cross-traffic function calculates the brake forcecally if:necessary if:R you steer to avoid the obstacleR you approach an obstacle andR the risk of collision has passedR Active Brake Assist with cross-traffic functionR an obstacle is no longer detected in the pathhas detected a risk of a collisiono
Driving safety systems
79
Up to a speed of approximately 70 km/h, Active
Up to a speed of approximately 70 km/h, the
Brake Assist with cross-traffic function may
Active Brake Assist with cross-traffic function
react to:
assists you with braking in hazardous situations
with:
R stationary objects in the path of your vehicle,
such as stopped or parked vehicles
R stationary obstacles in the path of the vehicle,
e.g. stopped or parked vehicles
R pedestrians in the path of your vehicle
R stationary pedestrians in the path of the vehi-
i If an increased danger of collision exists,
cle
preventative passenger protection measures
R obstacles crossing your path that move in the
Safety
(PRE-SAFE ® ) are triggered ( Y page 58).
detection range of the sensors and are detec-
If the risk of collision remains and you do not
ted.
brake, take evasive action or accelerate quickly,
X Keep the brake pedal depressed until the
the vehicle may perform automatic braking up to
emergency braking situation is over.
the point of a full brake application. An auto-
ABS prevents the wheels from locking.
matic full brake application is not performed
You can prevent the intervention of Active Brake
until immediately prior to an imminent accident.
Assist with cross-traffic function at any time by:
If you apply the brake yourself in a critical sit-
uation or during autonomous braking, braking
R depressing the accelerator pedal further
assistance is provided according to the situa-
R activating kickdown
tion. If necessary, this increases the brake pres-
R releasing the brake pedal
sure up to full brake application.
The braking application of Active Brake Assist
To avoid a collision, Active Brake Assist with
with cross-traffic function is ended automati-
cross-traffic function calculates the brake force
cally if:
necessary if:
R you steer to avoid the obstacle
R you approach an obstacle and
R the risk of collision has passed
R Active Brake Assist with cross-traffic function
R an obstacle is no longer detected in the path
has detected a risk of a collision
of your vehicle
When driving at a speed under 30 km/h: if
you depress the brake pedal, Active Brake
Assist with cross-traffic function is activated.
STEER CONTROL
Braking assistance from Active Brake Assist
with cross-traffic function is carried out at the
General information
last possible moment.
When driving at a speed above 30 km/h: if
STEER CONTROL helps you by transmitting a
you depress the brake pedal sharply, Active
noticeable steering force to the steering wheel
Brake Assist with cross-traffic function auto-
in the direction required for vehicle stabilisation.
matically increases the brake pressure to a
This steering support is provided in particular if:
degree suited to the traffic situation.
R both right wheels or both left wheels are on a
Active Brake Assist with cross-traffic function
wet or slippery road surface when you brake
provides braking assistance in hazardous situa-
R the vehicle starts to skid
tions with vehicles in front within a speed range
between 7 km/h and 250 km/h.
Important safety notes
i Observe the "Important safety notes" sec-
tion ( Y page 70).
No steering support is provided from STEER
CONTROL, if:
R ESP ® is deactivated
R ESP ® is malfunctioning
R the steering is faulty
Z
Protection against theft80A visual and audible alarm is triggered if theIf ESP ® is malfunctioning, you will be assistedalarm system is primed and you open:further by the electrical power steering.R a doorR the vehicle with the emergency key elementProtection against theftR the tailgateR the bonnetImmobiliserX To stop the alarm with the key: press theX To activate with the key: remove the key% or & button on the the ignition alarm stops.X To activate with KEYLESS-GO: switch theorignition off and open the driver's door.X Insert the key into the ignition lock.X To deactivate: switch on the alarm immobiliser prevents your vehicle fromX To stop the alarm using KEYLESS-GO:being started without the correct the outside door handle. The key mustWhen leaving the vehicle, always take the keybe outside the you and lock the vehicle. Anyone can startThe alarm engine if a valid key has been left inside theorvehicle.X Press the Start/Stop button on the dash-i The immobiliser is always deactivated whenboard. The key must be inside the start the alarm alarm does not stop, even if you close theopen door that has triggered it, for (Anti-Theft Alarm system)i If the alarm stays on for more than30 seconds, the Mercedes‑Benz emergencycall system automatically sends a message tothe Customer Assistance Centre. This is sentvia text message or a data connection. Theemergency call system sends a message orestablishes a data connection provided that:R you have subscribed to the Mercedes‑Benzemergency call systemR the Mercedes‑Benz emergency call systemhas been activated properlyR the necessary mobile phone network isavailableX To prime: lock the vehicle with the key lamp : flashes. The alarm systemTow-away protectionis primed after approximately 15 seconds.X To switch off with the key: unlock the vehi-Functioncle using the audible and visual
Protection against theft
80
A visual and audible alarm is triggered if the
If ESP ® is malfunctioning, you will be assisted
alarm system is primed and you open:
further by the electrical power steering.
R a door
R the vehicle with the emergency key element
Protection against theft
R the tailgate
R the bonnet
Immobiliser
X To stop the alarm with the key: press the
X To activate with the key: remove the key
% or & button on the key.
from the ignition lock.
Safety
The alarm stops.
X To activate with KEYLESS-GO: switch the
or
ignition off and open the driver's door.
X Insert the key into the ignition lock.
X To deactivate: switch on the ignition.
The alarm stops.
The immobiliser prevents your vehicle from
X To stop the alarm using KEYLESS-GO:
being started without the correct key.
grasp the outside door handle. The key must
When leaving the vehicle, always take the key
be outside the vehicle.
with you and lock the vehicle. Anyone can start
The alarm stops.
the engine if a valid key has been left inside the
or
vehicle.
X Press the Start/Stop button on the dash-
i The immobiliser is always deactivated when
board. The key must be inside the vehicle.
you start the engine.
The alarm stops.
The alarm does not stop, even if you close the
open door that has triggered it, for example.
ATA (Anti-Theft Alarm system)
i If the alarm stays on for more than
30 seconds, the Mercedes‑Benz emergency
call system automatically sends a message to
the Customer Assistance Centre. This is sent
via text message or a data connection. The
emergency call system sends a message or
establishes a data connection provided that:
R you have subscribed to the Mercedes‑Benz
emergency call system
R the Mercedes‑Benz emergency call system
has been activated properly
R the necessary mobile phone network is
available
X To prime: lock the vehicle with the key or
KEYLESS-GO.
Indicator lamp : flashes. The alarm system
Tow-away protection
is primed after approximately 15 seconds.
X To switch off with the key: unlock the vehi-
Function
cle using the key.
An audible and visual alarm is triggered if your
or
vehicle's angle of inclination is altered while
X Insert the key into the ignition lock.
tow-away protection is primed. This can occur if
X To switch off with KEYLESS-GO: unlock the
the vehicle is jacked up on one side, for exam-
vehicle using KEYLESS-GO.
ple.
or
X Press the Start/Stop button on the dash-
board. The key must be inside the vehicle.

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