ignition MERCEDES-BENZ GLC SUV 2018 Owner's Manual
[x] Cancel search | Manufacturer: MERCEDES-BENZ, Model Year: 2018, Model line: GLC SUV, Model: MERCEDES-BENZ GLC SUV 2018Pages: 390, PDF Size: 6.54 MB
Page 15 of 390
HANDS-FREE ACCESS..........................88
Handwriting recognition
Switching text reader function
on/off ............................................ 283
Touchpad ....................................... 282
Hazard warning lamps ...................... 114
Head restraints
Adjusting (electrically) ................... 102
Adjusting (manually) ...................... 102
Adjusting (rear) .............................. 102
Adjusting the fore-and-aft posi-
tion manually ................................. 102
General notes ................................ 102
Important safety notes .................. 101
Installing/removing (rear) .............. 103
Head-up display
Adjusting the brightness ................2 34
Displays and operating .................. 223
Function/notes .............................2 23
Important safety notes .................. 223
Selecting displays .......................... 233
Setting the position ....................... 234
Storing settings (memory func-
tion) ............................................... 110
Switching on or off ......................... 223
Headlamps
Display message ............................ 251
Fogging up ..................................... 115
see Automatic headlamp mode
Heating
see Climate control
High beam flasher .............................1 13
High-beam headlamps
Adaptive Highbeam Assist ............. 114
Display message ............................ 251
Replacing bulbs .............................1 18
Switching on/off ........................... 113
Hill start assist .................................. 140
HOLD function
Activating ....................................... 179
Activation conditions ..................... 179
Deactivating ................................... 179
Display message ............................ 259
Function/notes .............................1 78
General notes ................................ 178
Home address
see also Digital Operator's Man-
ual ..................................................2 80Hood
Closing ...........................................3 19
Display message ............................ 266
Important safety notes .................. 318
Opening ......................................... 318
Ho
rn ...................................................... 36
HUD
see Head-up display
Hydroplaning ..................................... 164
I
Ignition lock
see Key positions
Immobilizer .......................................... 76
Indicator lamps
see Warning and indicator lamps
Indicators
see Turn signals
Insect protection on the radiator .... 319
Instrument cluster
Overview .......................................... 37
Warning and indicator lamps ........... 37
Instrument cluster lighting .............. 220
Interior lighting
Automatic control .......................... 116
Control ...........................................1 16
Overview ........................................ 116
Reading lamp ................................. 116
iPod
®
see also Digital Operator's Man-
ual ..................................................2 80
J
Jack
Using ............................................. 370
Jump starting (engine) ......................341
K
Key positions
SmartKey ....................................... 136
Start/Stop button .......................... 137
KEYLESS-GO
Activating ......................................... 79
Convenience closing feature ............ 93
Deactivation ..................................... 79
Locking ............................................ 79
Index13
Page 22 of 390
Service messagesee ASSYST PLUS
Service products
Brake fluid .....................................3 80
Coolant (engine) ............................ 380
Engine oil ....................................... 379
Fuel ................................................ 377
Important safety notes .................. 377
Refrigerant (air-conditioning sys-
tem) ............................................... 381
Washer fluid ................................... 381
Setting the date/time format
see also Digital Operator's Man-
ual ..................................................2 80
Setting the language
see also Digital Operator's Man-
ual ..................................................2 80
Setting the time
see also Digital Operator's Man-
ual ..................................................2 80
Settings
Factory (on-board computer) ......... 235
On-board computer ....................... 231
SETUP (on-board computer,
Mercedes-AMG vehicles) .................. 236
Side impact air bag .............................5 1
Side marker lamp (display mes-
sage) ................................................... 251
Side running board
Cleaning ......................................... 328
Side windows
Cleaning ......................................... 327
Convenience closing feature ............ 92
Convenience opening feature ..........9 2
Important safety information ........... 91
Opening/closing .............................. 91
Problem (malfunction) .....................9 4
Resettin g........................................ .93
Reversin gfeature ............................ .91
SIRIUS services
see also Digital Operator's Man-
ual .................................................. 280
Ski and snowboard bag .................... 292
Sliding sunroof
Important safet
y notes .................... 94
Problem (malfunction) ..................... 97
see Panorama roof with power
tilt/sliding panel SmartKey
Changing the battery ....................... 81
Changing the programming .............8 0
Checking the battery ...................... .81
Convenience closing feature ............ 93
Convenience opening feature .......... 92
Display message ............................ 267
Door central locking/unlocking ...... .78
Important safety notes .................... 78
KEYLESS-GO start function .............. 80
Loss .................................................8 2
Mechanical key ................................ 80
Overview .......................................... 78
Positions (ignition lock) ................. 136
Problem (malfunction) ..................... 82
Starting the engine ........................ 138
Smartphone
Starting the engine ........................ 139
SMS
see also Digital Operator's Man-
ual .................................................. 280
Snow chains ...................................... 351
Socket (12 V)
Cargo compartment ....................... 305
Center console .............................. 305
General notes ................................ 305
Rear compartment .........................3 05
Sound
Switching on/off ........................... 281
Special seat belt retractor .................. 60
Specialist workshop ............................ 32
Speed, controlling
see Cruise control
Speedometer
Activating/deactivating the addi-
tional spee dometer ........................ 235
Di
gital ............................................ 225
In the Instrument cluster ................. 37
Segments ...................................... 220
Selecting the display unit ...............2 34
SPORT handling mode
Deactivating/activating
(Mercedes-AMG vehicles) ................ 71
Warning lamp ................................. 273
Sports exhaust system
AMG ............................................... 142
Standing lamps
Display message ............................ 251
20Index
Page 38 of 390
Cockpit
FunctionPage
:Steering wheel paddle shift-
ers152
;Combination switch113
=Horn
?Instrument cluster37
ADIRECT SELECT lever146
BClimate control systems124
COverhead control panel42
DControl panel for multimedia
system and vehicle functions39
EIgnition lock136
Start/Stop button137
FAdjusts the steering wheel105
GCruise control lever169
HElectric parking brake159
FunctionPage
IDiagnostics connection32
JOpens the hood318
KLight switch112
LControl panel for:
YActivating Distance
Pilot DISTRONIC with Steer-
ing Pilot
177
Ç Switching on Active
Lane Keeping Assist212
c Deactivating Parking
Assist PARKTRONIC193
Ô Switching on the 360°
camera199
Switching on the head-up
display223
Vehicles without a driver
assistance system: map/
coin holder
36Cockpit
At a glance
Page 46 of 390
Panic alarm
XTo arm:press and hold the !button :
for approximately one second.
A visual and audible alarm is triggered if the
alarm system is armed.
XTo disarm: press the!button :again.
or
XInsert the SmartKey into the ignition lock.
or
XPress the Start/Stop button.
The SmartKey must be in the vehicle.
Occupant safety
Introduction to the restraint system
The restraint system can reduce the risk of vehi- cle occupants coming into contact with parts of
the vehicle's interior in the event of an accident.
The restraint system can also reduce the forces to which vehicle occupants are subjected during
an accident.
The restraint system comprises:
RSeat belt system
RAir bags
RChild restraint system
RChild seat securing systems
The components of the restraint system work in
conjunction with each other. They can only
deploy their protective function if, at all times, all
vehicle occupants:
Rhave fastened their seat belts correctly
(Ypage 47)
Rhave the seat and head restraint adjusted
properly (Ypage 99) As the driver, you also have to make sure that
the steering wheel is adjusted correctly.
Observe the information relating to the correct
driver's seat position (
Ypage 99).
You also have to make sure that an air bag can
inflate properly if deployed (
Ypage 49).
An air bag supplements a correctly worn seat
belt. As an additional safety device, the air bag
increases the level of protection for vehicle
occupants in the event of an accident. For exam-
ple, if, in the event of an accident, the protection
offered by the seat belt is sufficient, the air bags
are not deployed. When an accident occurs, only
the air bags that increase protection in that par- ticular accident situation are deployed. How-
ever, seat belts and air bags generally do not
protect against objects penetrating the vehicle
from the outside.
Information on restraint system operation can
be found under "Triggering of the Emergency
Tensioning Devices and air bags" (
Ypage 56).
See "Children in the vehicle" for information on
children traveling with you in the vehicle as well
as on child restraint systems (
Ypage 60).
Important safety notes
GWARNING
Modifications to the restraint system may
cause it to no longer work as intended. The
restraint system may then not perform its
intended protective function and may fail in an
accident or trigger unexpectedly, for example.
This poses an increased risk of injury or even fatal injury.
Never modify parts of the restraint system.
Never tamper with the wiring, the electronic
components or their software.
If it is necessary to modify components of the
restraint system to accommodate a person with
disabilities, contact an authorized Mercedes-
Benz Center for details. USA only: for further
information contact our Customer Assistance
Center at 1-800 FOR-MERCEDES
(1‑800‑367‑6372).
Mercedes-Benz recommends that you only use
driving aids which have been approved specifi-
cally for your vehicle by Mercedes-Benz.
44Occupant safety
Safety
Page 47 of 390
Restraint system warning lamp
The functions of the restraint system are
checked after the ignition is switched on and at
regular intervals while the engine is running.
Therefore, malfunctions can be detected in
good time.
The6 restraint system warning lamp on the
instrument cluster lights up when the ignition is
switched on. It goes out no later than a few sec-
onds after the vehicle is started. The compo-
nents of the restraint system are in operational
readiness.
A malfunction has occurred if the 6restraint
system warning lamp:
Rdoes not light up after the ignition is switched
on
Rdoes not go out after a few seconds with the
engine running
Rlights up again while the engine is running
GWARNING
If the restraint system is malfunctioning,
restraint system components may be trig-
gered unintentionally or may not deploy as
intended during an accident. This can affect
for example the Emergency Tensioning
Device or the air bag. This poses an increased
risk of injury or even fatal injury.
Have the restraint system checked and
repaired in a qualified specialist workshop as
soon as possible.
PASSENGER AIR BAG indicator lamp
PASSENGER AIR BAG ON indicator lamp :and
PASSENGER AIR BAG OFF indicator lamp ;are
part of the Occupant Classification System
(OCS). The indicator lamps display the status of the
front-passenger front air bag.
RPASSENGER AIR BAG ON lights up for 60 sec-
onds, subsequently both indicator lamps are
off (PASSENGER AIR BAG ON and OFF): the
front-passenger front air bag is able to deploy
in the event of an accident.
RPASSENGER AIR BAG OFF lights up: the front-
passenger front air bag is deactivated. It will
then not be deployed in the event of an acci-
dent.
If the PASSENGER AIR BAG ON indicator lamp is
off, only the PASSENGER AIR BAG OFF indicator lamp shows the status of the front-passenger
front air bag. The PASSENGER AIR BAG OFF
indicator lamp may be lit continuously or be off.
Depending on the person in the front-passenger
seat, the front-passenger front air bag must
either be deactivated or enabled; see the fol-
lowing points. You must make sure of this both
before and during a journey.
RChildren in a child restraint system:
whether the front-passenger front air bag is
enabled or deactivated depends on the instal-led child restraint system, and the age and
size of the child. Therefore, be sure to observe
the notes on the "Occupant Classification
System (OCS)" (
Ypage 52) and on "Chil-
dren in the vehicle" (Ypage 60). There you
will also find instructions on rearward and
forward-facing child restraint systems on the
front-passenger seat.
RAll other persons: depending on the classi-
fication of the person in the front-passenger
seat, the front-passenger front air bag is ena-
bled or deactivated (
Ypage 52). Be sure to
observe the notes on "Seat
belts“ (
Ypage 45) and "Air bags"
(Ypage 49). There you can also find infor-
mation on the correct seat position.
Seat belts
Introduction
Seat belts are the most effective means of
restricting the movement of vehicle occupants
in the event of an accident or the vehicle rolling over. This reduces the risk of vehicle occupants
coming into contact with parts of the vehicle
interior or being ejected from the vehicle. Fur-
thermore, the seat belt helps to keep the vehicle
Occupant safety45
Safety
Z
Page 50 of 390
of an accident, they could be crushed
between the vehicle occupant and seat belt.
Robjects are never secured with a seat belt if
the seat belt is also being used by one of the
vehicle's occupants
Also ensure that there are never objects
between a person and the seat, e.g. cushions.
Seat belts are only intended to secure and
restrain vehicle occupants. Always observe the
"Loading guidelines" for securing objects, lug-
gage or loads (
Ypage 290).
Fastening and adjusting the seat belts
Observe the safety notes on the seat belt
(Ypage 46) and the notes on correct use of seat
belts (Ypage 47).
If the center rear seat belt is being used, also
observe the information about the seat belt for
the center rear seat (
Ypage 48).
Basic illustration
XAdjust the seat (Ypage 99).
The seat backrest must be in an almost
upright position.
XPull the seat belt smoothly from the belt outlet
and engage belt tongue ;into belt
buckle :.
The seat belt on the driver’s seat and the
front-passenger seat may be tightened auto-
matically, see "Belt adjustment"
(
Ypage 48).
XIf necessary, pull up on the shoulder section
of the seat belt to tighten the belt across your
body. The shoulder section of the seat belt must
always be routed across the center of the shoul-
der. Adjust the belt outlet if necessary.
XTo raise:
slide the belt outlet up.
The belt outlet will engage in various posi-
tions.
XTo lower: hold belt outlet release =and slide
the belt outlet down.
XLet go of belt outlet release =in the desired
position and make sure that the belt outlet
engages.
All seat belts except the driver's seat belt are
equipped with a special seat belt retractor to
securely fasten child restraint systems in the
vehicle. Further information can be found under
"Special seat belt retractor" (
Ypage 60).
Seat belt for the center rear seat
If the left-hand rear seat backrest is folded down
and back up again, the rear center seat belt may
lock. The seat belt can then not be pulled out.
XTo release the rear center seat belt: pull
the seat belt out approximately 1 in (25 mm)
at the belt outlet on the backrest and then
release it again.
The seat belt is retracted and released.
Releasing seat belts
!Make sure that the seat belt is fully rolled up.
Otherwise, the seat belt or belt tongue will be
trapped in the door or in the seat mechanism.
This could damage the door, the door trim
panel and the seat belt. Damaged seat belts
can no longer fulfill their protective function
and must be replaced. Visit a qualified spe-
cialist workshop.
XPress the release button in the belt buckle,
hold the belt tongue firmly and guide the belt
back.
Seat belt adjustment
The belt adjustment is a convenience function
integrated into PRE-SAFE®. With this function,
the driver's and front-passenger seat belts are
adjusted to the upper body of the vehicle occu-
pant.
The seat belt strap will slightly tighten if:
Rthe belt tongue is inserted into the buckle and
Rthe ignition is switched on
48Occupant safety
Safety
Page 54 of 390
Window curtain air bags:are integrated into
the side of the roof frame and deployed in the
area from the A-pillar to the C-pillar.
When deployed, the window curtain air bag
enhances the level of protection for the head.
However, it does not protect the chest or arms.
If the restraint system control unit detects a side
impact, the window curtain air bag is deployed
on the side on which the impact occurs.
If the system determines that they can offer
additional protection to that provided by the
seat belt, a window curtain air bag may be
deployed in other accident situations
(
Ypage 56).
Occupant Classification System
(OCS)
Introduction
The Occupant Classification System (OCS) cat-
egorizes the person in the front-passenger seat.
Depending on that result, the front-passenger
front air bag is either enabled or deactivated.
The system does not deactivate:
Rthe side impact air bag
Rthe window curtain air bag
Rthe Emergency Tensioning Devices
Requirements
To be classified correctly, the front passenger
must sit:
Rwith the seat belt fastened correctly
Rin an almost upright position with their back
against the seat backrest
Rwith their feet resting on the floor, if possible
If the front passenger does not observe these
conditions, OCS may produce a false classifica-
tion, e.g. because the front passenger:
Rtransfers their weight by supporting them-
selves on a vehicle armrest
Rsits in such a way that their weight is raised
from the seat cushion
If it is absolutely necessary to install a child
restraint system on the front-passenger seat, be
sure to observe the correct positioning of the
child restraint system. Never place objects
under or behind the child restraint system, e.g. a
cushion. Fully retract the seat cushion length.
The entire base of the child restraint system must always rest on the seat cushion of the
front-passenger seat. The backrest of the
forward-facing child restraint system must lie as
flat as possible against the backrest of the front-
passenger seat.
The child restraint system must not touch the
roof or be subjected to a load by the head
restraint. Adjust the angle of the seat backrest
and the head restraint position accordingly.
Only then can OCS be guaranteed to function
correctly. Always observe the child restraint sys-
tem manufacturer's installation and operating
instructions.
Occupant Classification System opera-
tion (OCS)
:PASSENGER AIR BAG ON indicator lamp
;PASSENGER AIR BAG OFF indicator lamp
The indicator lamps inform you whether the
front-passenger front air bag is deactivated or
enabled.
XPress the Start/Stop button once or twice, or turn the SmartKey to position 1or2 in the
ignition lock.
The system carries out self-diagnostics.
The PASSENGER AIR BAG OFF and PASSENGER
AIR BAG ON indicator lamps must light up simul-
taneously for approximately six seconds.
The indicator lamps display the status of the
front-passenger front air bag.
RPASSENGER AIR BAG ON lights up for 60 sec-
onds, subsequently both indicator lamps are
off (PASSENGER AIR BAG ON and OFF): the
front-passenger front air bag is able to deploy
in the event of an accident.
RPASSENGER AIR BAG OFF lights up: the front-
passenger front air bag is deactivated. It will
then not be deployed in the event of an acci-
dent.
52Occupant safety
Safety
Page 59 of 390
and to have any malfunctioning air bags
repaired. This will help to make sure the air bags
continue to perform their protective function for
the vehicle occupants in the event of a crash.
GWARNING
Emergency Tensioning Devices that have
deployed pyrotechnically are no longer opera-
tional and are unable to perform their inten-
ded protective function. This poses an
increased risk of injury or even fatal injury.
Have pyrotechnically triggered Emergency
Tensioning Devices replaced immediately at a
qualified specialist workshop.
An electric motor is used by PRE-SAFE
®to trig-
ger the tightening of the seat belt in hazardous
situations. This procedure is reversible.
If Emergency Tensioning Devices are triggered
or air bags are deployed, you will hear a bang,
and some powder may also be released. The
6 restraint system warning lamp lights up.
Only in rare cases will the bang affect your hear-
ing. The powder that is released generally does
not constitute a health hazard, but it may cause short-term breathing difficulties in people with
asthma or other respiratory problems. Provided
it is safe to do so, you should leave the vehicle
immediately or open the window in order to pre-
vent breathing difficulties.
Air bags and pyrotechnic Emergency Tensioning
Devices (ETDs) contain perchlorate material,
which may require special handling and regard
for the environment. National guidelines must
be observed during disposal. In California, see
www.dtsc.ca.gov/HazardousWaste/
Perchlorate/index.cfm.
Method of operation
During the first stage of a collision, the restraint
system control unit evaluates important physi-
cal data relating to vehicle deceleration or accel-
eration, such as:
Rduration
Rdirection
Rintensity
Based on the evaluation of this data, the
restraint system control unit triggers the Emer-
gency Tensioning Devices during a frontal or
rear collision. An Emergency Tensioning Device can only be
triggered, if:
Rthe ignition is switched on
Rthe components of the restraint system are
operational. You can find further information
under "Restraint system warning lamp"
(
Ypage 45)
Rthe seat belt buckle tongue has engaged in
the belt buckle of the respective front seat
The Emergency Tensioning Devices in the rear
compartment are triggered independently of the
lock status of the seat belts.
If the restraint system control unit detects a
more severe accident, further components of
the restraint system are activated independ-
ently of each other in certain frontal collision
situations:
RFront air bags and driver's knee bag
RWindow curtain air bag, if the system deter-
mines that deployment can offer additional
protection to that provided by the seat belt
The front-passenger front air bag is activated or
deactivated depending on the person on t
he
front-passenger seat. The front-passenger front
air bag can only deploy in an accident if the
PASSENGER AIR BAG OFF indicator lamp is off.
Observe the information on the PASSENGER AIR
BAG indicator lamps (
Ypage 45).
Your vehicle has two-stage front air bags. In the
first deployment stage, the front air bag is filled
with propellant gas. The front air bag is fully
deployed with the maximum amount of propel-
lant gas if a second deployment threshold is
reached within a few milliseconds.
The activation threshold of the Emergency Ten-
sioning Devices and the air bags is determined
by evaluating the rate of vehicle deceleration or
acceleration which occurs at various points in
the vehicle. This process is pre-emptive in
nature. Deployment should take place in good
time at the start of the collision.
The rate of vehicle deceleration or acceleration
and the direction of the force are essentially
determined by:
Rthe distribution of forces during the collision
Rthe collision angle
Rthe deformation characteristics of the vehicle
Rthe characteristics of the object with which
the vehicle has collided
Factors which can only be seen and measured
after a collision has occurred do not play a deci-
sive role in the deployment of an air bag. Nor do
Occupant safety57
Safety
Z
Page 68 of 390
Drivingsafet ysystems
Overview of drivin gsafet ysystems
In this section ,you will fin dinformation about
th efollowin gdrivin gsafet ysystems :
RABS (Anti-loc kBrakin gSystem)
(Ypage 66)
RBA S (B rakeAssist System) (Ypage 67)
RActive Brak eAssis t (Ypage 67 )
RESP®(Electronic StabilityProgram)
(Ypage 69)
REB D (Electroni cBrak eforc eDistribution )
(Ypage 73 )
RADAPTIV EBRAKE (Ypage 73 )
RActive Brak eAssis twit hcross-traffic function
(Ypage 73)
RSTEE RCONTROL (Ypage 76)
Important safet ynotes
If you fail to adapt your drivin gstyle or if you are
inattentive ,th edrivin gsafet ysystems can nei-
ther reduce th eris kof an acciden tno roverride
th elaws of physics. Driving safet ysystems are
merely aids designed to assist driving. You are
responsible fo rmaintainin gth edistanc eto th e
vehicle in front, fo rvehicle speed, fo rbraking in
goo dtime, and fo rstayin gin lane. Always adapt
your drivin gstyle to suit th eprevailin groad and
weather condition sand maintain asaf edistanc e
from th evehicle in front. Drive carefully.
The drivin gsafet ysystems described only wor k
as effectively as possible when there is ade-
quat econtact between th etires and th eroad
surface. Pay particular attention to th einforma-
tion regardin gtires ,recommended minimum
tire tread depths etc. in th e"Wheels and tires "
section (
Ypage 349).
In wintr ydrivin gconditions, always use winte r
tires (M+ Stires )and if necessary, snow chains.
Only in this way will the driving safety systems
described in this section work as effectively as
possible.
ABS (Anti-lock Braking System)
General information
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
braking.
The ! ABS warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out when the engine is running.
ABS works from a speed of about 5 mph
(8 km/h), regardless of road-surface conditions.
ABS works on slippery surfaces, even when you
only brake gently.
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 66).
GWARNING
If ABS is faulty, the wheels could lock when
braking. The steerability and braking charac-
teristics may be severely impaired. Addition-
ally, further driving safety systems are deac-
tivated. There is an increased danger of skid-
ding and accidents.
Drive on carefully. Have ABS checked imme-
diately at a qualified specialist workshop.
When ABS is malfunctioning, other systems,
including driving safety systems, will also
become inoperative. Observe the information
on the ABS warning lamp (
Ypage 271) and dis-
play messages which may be shown in the
instrument cluster (
Ypage 240).
Braking
XIf ABS intervenes: continue to depress the
brake pedal vigorously until the braking sit-
uation is over.
XTo make a full brake application: depress
the brake pedal with full force.
If ABS intervenes when braking, you will feel a
pulsing in the brake pedal.
The pulsating brake pedal can be an indication
of hazardous road conditions, and functions as a reminder to take extra care while driving.
66Driving safety systems
Safety
Page 69 of 390
BAS (Brake Assist System)
General information
BAS operates in emergency braking situations.
If you depress the brake pedal quickly, BAS
automatically boosts the braking force, thus
shortening the stopping distance.
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 66).
GWARNING
If BAS is malfunctioning, the braking distance
in an emergency braking situation is
increased. There is a risk of an accident.
In an emergency braking situation, depress
the brake pedal with full force. ABS prevents
the wheels from locking.
Braking
XKeep the brake pedal firmly depressed until
the emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated.
Active Brake Assist
General information
iObserve the "Important safety notes" sec-
tion (Ypage 66).
Active Brake Assist consists of a distance warn-
ing function with an autonomous braking func-
tion and Adaptive Brake Assist.
Active Brake Assist can help you to minimize the
risk of a collision with the vehicle traveling in
front or reduce the effects of such a collision.
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
audible collision warning, autonomous braking
can be initiated in critical situations. If you apply
the brake yourself in a critical situation, Adap-
tive Brake Assist of the Active Brake Assist sys-
tem supports you.
Important safety notes
In particular, the detection of obstacles can be
impaired if:
Rthere is dirt on the sensors or anything else
covering the sensors
Rthere is snow or heavy rain
Rthere is interference by other radar sources
Rthere are strong radar reflections, for exam-
ple in parking garages
Ra narrow vehicle is traveling in front, e.g. a
motorbike
Ra vehicle is traveling in front on a different line
Ryou are driving a new vehicle or servicing on
the Active Brake Assist system has just been
carried out
Observe the important safety notes in the
"Breaking-in notes" section (
Ypage 135).
Following damage to the front end of the vehicle,
have the configuration and operation of the
radar sensor checked at a qualified specialist
workshop. This also applies to collisions at slow
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.
You can activate or deactivate Active Brake
Assist (
Ypage 232) in the on-board computer.
When deactivated, the distance warning func-
tion and the autonomous braking function are
also deactivated.
If Active Brake Assist is deactivated, the æ
symbol appears on the assistant display.
Distance warning function
General information
The distance warning function can help you to
minimize the risk of a front-end collision with a
vehicle ahead or reduce the effects of such a
collision. If the distance warning function
detects that there is a risk of a collision, you will
be warned visually and acoustically.
Important safety notes
iObserve the "Important safety notes" sec-
tion for driving safety systems (Ypage 66).
Driving safety systems67
Safety
Z