sensor MERCEDES-BENZ GLC SUV 2018 Owner's Manual

Calling up the climate control
menuMultimedia system ........................ 284
Camera
see 360° camera
see Rear view camera
Car
see Vehicle
Car wash
see Care
Care
360° camera ................................ .328
Car wash ........................................ 324
Carpets .......................................... 331
Display ...........................................3 29
Exhaust pipe .................................. 328
Exterior lights ................................ 327
General notes ................................ 324
Interior ...........................................3 29
Matte finish ................................... 326
Paint .............................................. 326
Plastic trim ....................................3 29
Power washer ................................ 325
Rear view camera .......................... 328
Roof lining ...................................... 331
Seat belt ........................................ 330
Seat cover ..................................... 330
Selector lever ................................ 329
Sensors ......................................... 328
Side running board ........................ 328
Steering wheel ............................... 329
Trim pieces ....................................3 30
Washing by hand ........................... 325
Wheels ...........................................3 26
Windows ........................................ 327
Wiper blades .................................. 327
Wooden trim .................................. 330
Cargo compartment
Opening/closing (from outside,
HANDS-FREE ACCESS) .................... 88
Plug-in module (telescopic rods) .... 299
Cargo compartment cover
Important safety notes .................. 296
Notes/how to use ......................... 296
Cargo compartment enlargement ... 293
Cargo compartment floor
Important safety notes .................. 300
Opening/closing ............................ 300 Stowage well (under)
..................... 300
C
argo compartment plug-in mod-
ule (telescope bars) .......................... 299
Cargo net
Attaching ....................................... 297
Important safety information ......... 297
Cargo tie down rings ......................... 295
CD
see also Digital Operator's Man-
ual ..................................................2 80
CD player (on-board computer) ........229
Center console
Lower section (Mercedes-AMG
vehicles) .......................................... 41
Upper section .................................. 39
Central locking
Locking/unlocking (SmartKey) ........7 8
Change of address .............................. 30
Change of ownership .......................... 30
Changing the media source .............228
Charge-air pressure (on-board
computer, Mercedes-AMG vehi-
cles) .................................................... 235
Child
Restraint system .............................. 61
Child seat
Forward-facing restraint system ...... 64
LATCH-type (ISOFIX) child seat
anchors ............................................ 62
On the front-passenger seat ............ 63
Rearward-facing restraint system .... 64
Top Tether ....................................... 62
Child-proof locks
Important safety notes .................... 64
Rear doors ....................................... 65
Children
Special seat belt retractor ............... 60
Children in the vehicle
Important safety notes .................... 60
Cigarette lighter ................................ 304
Cleaning
Mirror turn signal ........................... 327
Trailer tow hitch ............................. 329
Climate control
Control panel for 3-zone auto-
matic climate control ..................... 125
Index7

P
Paddle shifterssee Steering wheel paddle shifters
Paint code number ............................376
Paintwork (cleaning instructions) ... 326
Panic alarm .......................................... 44
Panorama roof with power tilt/
sliding panel
Important safety notes .................... 94
Operating ......................................... 95
Operating the roller sunblinds for
the sliding sunroof ........................... 96
Problem (malfunction) ..................... 97
Rain closing feature ......................... 96
Reversing feature .............................9 5
Parcel net ...........................................2 98
Parking
Important safety notes .................. 158
Parking brake ................................ 159
Parking position for the exterior
mirror on the front-passenger
side ................................................ 109
Rear view camera .......................... 194
Switching off the engine ................ 158
see Parking Assist PARKTRONIC
Parking aid
see 360° camera
see Exterior mirrors
see Parking Assist PARKTRONIC
see Parking Pilot
see Rear view camera
Parking Assist
Display message ............................ 258
Parking Assist PARKTRONIC
Deactivating/activating ................. 193
Driving system ............................... 191
Function/notes .............................1 91
Important safety notes .................. 191
Problems (malfunctions) ................ 194
Sensor range ................................. 192
Warning display ............................. 193
Parking assistance
see Parking Assist PARKTRONIC
Parking brake
Applying automatically ................... 159
Applying or releasing manually ...... 159
Display message ............................ 242 Electric parking brake .................... 159
Emergency braking ........................ 160
General notes ................................ 159
Releasing automatically ................. 160
Warning lamp ................................. 274
Parking lamps
Switching on/off ........................... 113
Parki ng Pi
lot
Canceling ....................................... 191
Detecting parking spaces .............. 188
Exiting a parking space .................. 190
Function/notes ............................. 188
Important safety notes .................. 188
Parking .......................................... 189
PASSENGER AIR BAG
Display message ............................ 249
Indicator lamps ................................ 45
Problems (malfunction) .................. 249
Perfume atomizer
Operating ....................................... 132
Problem (malfunction) ................... 133
Setting the perfume intensity
(multimedia system) ...................... 285
Vial ................................................ 132
Permanent all-wheel drive
see 4MATIC (permanent four-
wheel drive)
Pets in the vehicle ............................... 65
Phone book
see also Digital Operator's Man-
ual .................................................. 280
Plastic trim (cleaning instruc-
tions) .................................................. 329
Power washers .................................. 325
Power windows
see Side windows
PRE-SAFE
®(anticipatory occupant
protection)
Display message ............................ 246
Operation ......................................... 58
PRE-SAFE
®PLUS (anticipatory
occupant protection PLUS)
Operation ......................................... 59
Program
see Drive programs
Protection against theft
ATA (Anti-Theft Alarm system) ......... 77
Index17

Immobilizer ...................................... 76
Protection of the environment
General notes .................................. 28
Pulling away
Automatic transmission .................1 39
General notes ................................ 139
Hill start assist ............................... 140
Trailer ............................................ 140
Q
QR code
Mercedes-Benz Guide App ................. 1
Rescue card ..................................... 33
Qualified specialist workshop ........... 32
Quick access for audio and tele-
phone
Changing the station/music
track .............................................. 283
R
RACE START (Mercedes-AMG vehi-
cles) .................................................... 183
RACE TIMER (on-board computer,
Mercedes-AMG vehicles) .................. 237
Radar sensor system
Display message ............................ 247
Radiator cover ................................... 319
Radio
Selecting a station ......................... 228
Radio mode
see also Digital Operator's Man-
ual ..................................................2 80
Radio-wave reception/transmis-
sion in the vehicle
Declaration of conformity ................ 31
Rain closing feature (panorama
roof with power tilt/sliding panel) .... 96
Reading lamp ..................................... 116
Rear compartment
Setting the air vents ......................1 34
Setting the airflow ......................... 129
Setting the temperature ................ 128
Rear fog lamp
Display message ............................ 251
Switching on/off ........................... 113 Rear seat
Adjusting the angle of the backr-
ests ................................................ 295
Rear seat (folding the backrest for-
wards/back) ...................................... 293
Rear seat backrest
Display message ............................ 266
Rear seats
Display message ............................ 266
Rear view camera
"Reverse parking" function ............ 196
Cleaning instructions ..................... 328
Coupling up a trailer function ........1 98
Display in the multimedia system .. 195
General notes ................................ 194
Object detection (function/
notes) ............................................ 198
Switching on/off ........................... 195
Wide-angle function ....................... 198
Rear window defroster
Problem (malfunction) ................... 131
Switching on/off ........................... 130
Rear window wiper
Replacing the wiper blade .............. 122
Switching on/off ........................... 121
Rear-view mirror
Dipping (automatic) ....................... 108
Recuperation display ........................ 225
Re

flective safety jacket .................... 332
Refrigerant (air-conditioning sys-
tem)
Important safety notes .................. 381
Refueling
Fuel gauge ....................................... 37
Important safety notes .................. 155
see Fuel
Remote control
Garage door opener ....................... 314
Programming (garage door
opener) .......................................... 315
Replacing bulbs
Backup lamp .................................. 119
High-beam headlamps ................... 118
Important safety notes .................. 116
Installing/removing the cover
(front wheel arch) .......................... 118
Low-beam headlamps .................... 117
Opening/closing side trim panels. .119
18Index

Overview of bulb types .................. 117
Replacing front bulbs (vehicles
with halogen headlamps) ............... 117
Turn signals (front) .........................118
Reporting safety defects .................... 33
Rescue card ......................................... 33
Reserve (fuel tank)
see Fuel
Reserve fuel
Display message ............................ 255
Warning lamp ................................. 274
Residual heat (climate control) ........131
Restraint system
Display message ............................ 247
Introduction ..................................... 44
Warning lamp ................................. 274
Warning lamp (function) ................... 45
Reversing feature
Panorama sliding sunroof ................ 95
Roller sunblinds ............................... 96
Side windows ................................... 91
Tailgate ............................................ 86
Roadside Assistance (breakdown) .... 30
Roll away protection
see HOLD function
Roller sunblind
Operating ......................................... 97
Panorama roof with power tilt/
sliding panel ..................................... 96
Rear side windows ......................... 303
Resetting ......................................... 97
Roof carrier ........................................ 301
Roof lining and carpets (cleaning
guidelines) ......................................... 331
Roof load (maximum) ........................ 382
Route guidance
see also Digital Operator's Man-
ual ..................................................2 80
Route guidance active ......................226
S
Safety
Children in the vehicle ..................... 60
see Occupant safety
see Operating safety
Safety system
see Driving safety systems SD card
Inserting/removing ........................ 289
Selecting ........................................ 229
SD memory card
see also Digital Operator's Man-
ual ..................................................2 80
Search & Send
see also Digital Operator's Man-
ual ..................................................2 80
Seat
Correct driver's seat position ........... 99
Seat belts
Adjusting the driver's and front-
passenger seat belt ......................... 48
Adjusting the height ......................... 48
center rear-compartment seat ......... 48
Cleaning ......................................... 330
Correct usage .................................. 47
Fastening ......................................... 48
Important safety guidelines ............. 46
Introduction ..................................... 45
Releasing ......................................... 48
Warning lamp ................................. 269
Warning lamp (function) ................... 49
Seats
Adjusting (electrically) ................... 101
Adjusting the 4-way lumbar sup-
port ................................................ 103
Adjusting the head restraint .......... 101
Calling up a stored setting (mem-
ory function) .................................. 110
Cleaning the cover ......................... 330
Folding the backrest (rear com-
partment) forwards/back .............. 293
Important safety notes .................... 99
Seat heating .................................. 103
Seat heating problem .................... 104
Seat ventilation .............................. 104
Seat ventilation problem ................ 104
Storing settings (memory func-
tion) ............................................... 110
Securing cargo .................................. 295
Selector lever
Cleaning ......................................... 329
see Automatic transmission
Sensors (cleaning instructions) ....... 328
Service menu (on-board com-
puter) .................................................. 231
Index19

Protecting the environment
General notes
HEnvironmental note
Daimler's declared policy is one of compre-
hensive environmental protection.
The objectives are for the natural resources
that form the basis of our existence on this
planet to be used sparingly and in a manner
that takes the requirements of both nature
and humanity into account.
You too can help to protect the environment
by operating your vehicle in an environmen-
tally responsible manner.
Fuel consumption and the rate of engine,
transmission, brake and tire wear are affected by these factors:
Roperating conditions of your vehicle
Ryour personal driving style
You can influence both factors. You should
bear the following in mind:
Operating conditions:
Ravoid short trips as these increase fuel con-
sumption.
Ralways make sure that the tire pressures
are correct.
Rdo not carry any unnecessary weight.
Rremove roof racks once you no longer need
them.
Ra regularly serviced vehicle will contribute
to environmental protection. You should
therefore adhere to the service intervals.
Ralways have service work carried out at a
qualified specialist workshop.
Personal driving style:
Rdo not depress the accelerator pedal when
starting the engine.
Rdo not warm up the engine when the vehicle
is stationary.
Rdrive carefully and maintain a safe distance
from the vehicle in front.
Ravoid frequent, sudden acceleration and
braking.
Rchange gear in good time and use each gear
only up to Ôof its maximum engine speed.
Rswitch off the engine in stationary traffic.
Rkeep an eye on the vehicle's fuel consump-
tion.
Environmental concerns and recom-
mendations
Wherever the Operator's Manual requires you to
dispose of materials, first try to regenerate or re-
use them. Observe the relevant environmental
rules and regulations when disposing of materi-
als. In this way you will help to protect the envi-
ronment.
Genuine Mercedes-Benz parts
HEnvironmental note
Daimler AG also supplies reconditioned major
assemblies and parts which are of the same
quality as new parts. They are covered by the
same Limited Warranty entitlements as new
parts.
!Air bags and Emergency Tensioning Devi-
ces, as well as control units and sensors for
these restraint systems, may be installed in
the following areas of your vehicle:
Rdoors
Rdoor pillars
Rdoor sills
Rseats
Rcockpit
Rinstrument cluster
Rcenter console
Do not install accessories such as audio sys-
tems in these areas. Do not carry out repairs or welding. You could impair the operating
efficiency of the restraint systems.
Have aftermarket accessories installed at a
qualified specialist workshop.
You could jeopardize the operating safety of
your vehicle if you use parts, tires and wheels as
well as accessories relevant to safety which
have not been approved by Mercedes-Benz. This
could lead to malfunctions in safety-relevant
28Genuine Mercedes-Benz parts
Introduction

board, for example. Your feet may otherwise
be in the deployment area of the air bag.
RFor this reason, always secure persons less
than 5 ft (1.50 m) tall in suitable restraint sys-
tems. Up to this height, the seat belt cannot
be worn correctly.
If a child is traveling in your vehicle, also
observe the following notes:
RAlways secure children under twelve years of age and less than 5 ft (1.50 m)tall in suitable
child restraint systems.
RChild restraint systems should be installed on
the rear seats.
ROnly secure a child in a rearward-facing child
restraint system on the front-passenger seat
when the front-passenger front air bag is
deactivated. If the PASSENGER AIR BAG OFF
indicator lamp is permanently lit, the front-
passenger front air bag is deactivated
(
Ypage 45).
RAlways observe the instructions and safety
notes on the "Occupant Classification System
(OCS)" (
Ypage 52) and on "Children in the
vehicle" (Ypage 60) in addition to the child
restraint system manufacturer's installation
and operating instructions.
Objects in the vehicle interior may prevent
an air bag from functioning correctly. Before
starting your journey and to avoid risks resulting
from the speed of the air bag as it deploys, make sure that:
Rthere are no people, animals or objects
betwe en the vehicle occupants and an air bag
Rthere are no objects between the seat, door
and B-pillar
Rthere are no hard objects, e.g. coat hangers,
hanging on the grab handles or coat hooks
Rno accessories, such as cup holders, are
attached to the vehicle within the deployment
area of an air bag, e.g. to doors, side windows,
rear side trim or side walls
Rno heavy, sharp-edged or fragile objects are in
the pockets of your clothing. Store such
objects in a suitable place
GWARNING
If you modify the air bag cover or affix objects
such as stickers to it, the air bag can no longer function correctly. There is an increased risk
of injury.
Never modify an air bag cover or affix objects
to it.
GWARNING
Sensors to control the air bags are located in
the doors. Modifications or work not per-
formed correctly to the doors or door panel-
ing, as well as damaged doors, can lead to the
function of the sensors being impaired. The air
bags might therefore not function properly
anymore. Consequently, the air bags cannot
protect vehicle occupants as they are
designed to do. There is an increased risk of
injury.
Never modify the doors or parts of the doors.
Always have work on the doors or door pan-
eling carried out at a qualified specialist work-
shop.
Front air bags
!Do not place heavy objects on the front-
passenger seat. This could cause the system
to identify the seat as being occupied. In the
event of an accident, the restraint systems on
the front-passenger side may be triggered
and have to be replaced.
Driver's air bag :deploys in front of the steer-
ing wheel. Front-passenger front air bag ;
deploys in front of and above the glove box.
When deployed, the front air bags offer addi-
tional head and thorax protection for the occu-
pants in the front seats.
The PASSENGER AIR BAG OFF indicator lamp
informs you about the status of the front-
passenger front air bag (
Ypage 45).
50Occupant safety
Safety

The front-passenger front air bag will only
deploy if:
Rthe system, based on the OCS weight sensor
readings, detects that the front-passenger
seat is occupied (
Ypage 52). The
PASSENGER AIR BAG OFF indicator lamp is
not lit (
Ypage 52)
Rthe restraint system control unit predicts a
high accident severity
Driver's knee bag
Driver's knee bag :deploys under the steering
column. The driver's knee bag is deployed
together with the front air bag.
The driver's knee bag offers additional thigh,
knee and lower leg protection for the occupant
in the driver's seat.
Side impact air bags
GWARNING
Unsuitable seat covers can obstruct or pre-
vent deployment of the air bags integrated
into the seats. Consequently, the air bags
cannot protect vehicle occupants as they are designed to do. In addition, the operation of
the occupant classification system (OCS)
could be adversely affected. This poses an
increased risk of injury or even fatal injury.
You should only use seat covers that have
been approved for the respective seat by
Mercedes-Benz.
Front side impact air bags :and rear side
impact air bags ;deploy next to the outer bol-
ster of the seat backrest.
When deployed, the side impact air bag offers
additional thorax protection. However, it does
not protect the:
RHead
RNeck
RArms
If the restraint system control unit detects a side
impact, the side impact air bag is deployed on
the side on which the impact occurs.
The side impact air bag on the front-passenger
side deploys under the following conditions:
Rthe OCS system detects that the front-
passenger seat is occupied or
Rthe seat belt buckle tongue is engaged in the belt buckle of the front-passenger seat
If the belt tongue is engaged in the belt buckle,
the side impact air bag on the front-passenger
side deploys if an appropriate accident situation
occurs. In this case, deployment is independent
of whether the front-passenger seat is occupied
or not.
Window curtain air bags
Occupant safety51
Safety
Z

they provide an indication of air bag deploy-
ment.
The vehicle can be deformed considerably, with-
out an air bag being deployed. This is the case if
only parts which are relatively easily deformed
are affected and the rate of deceleration is not
high. Conversely, air bags may be deployed eventhough the vehicle suffers only minor deforma-
tion. This is the case if, for example, very rigid
vehicle parts such as longitudinal body mem-
bers are hit, and sufficient deceleration occurs
as a result.
If the restraint system control unit detects a side
impact or if the vehicle rolls over, the applicable
components of the restraint system are
deployed independently of each other depend-
ing on the apparent type of accident.
RSide impact air bags on the side where the
impact takes place, independently of the
Emergency Tensioning Device and the use of
the seat belt on the driver's seat and outer
seats in the second row
The side impact air bag on the front-
passenger side deploys under the following
conditions:
-the OCS system detects that the front-
passenger seat is occupied or
-the seat belt buckle tongue is engaged in
the belt buckle of the front-passenger seat
RWindow curtain air bag on the side of impact, independently of the use of the seat belt and
independently of whether the front-
passenger seat is occupied
RFront Emergency Tensioning Devices, if the
system determines that deployment can offer
additional protection for the vehicle occu-
pants in this situation
RRear Emergency Tensioning Devices in cer-
tain situations if the vehicle rolls over
RWindow curtain air bags on the driver's and
front-passenger side in certain situations
when the vehicle rolls over, if the system
determines that deployment can offer addi-
tional protection to that provided by the seat
belt
iNot all air bags are deployed in an accident.
The different air bag systems work independ-
ently of each other. How the air bag system works is determined
by the severity of the accident detected,
especially the vehicle deceleration or accel-
eration and the apparent type of accident:
RFrontal collision
RSide impact
RRollover
PRE-SAFE®(anticipatory occupant
protection system)
Introduction
In certain hazardous situations, PRE-SAFE®
takes pre-emptive measures to protect the vehi-
cle occupants.
Important safety notes
!Make sure that there are no objects in the
footwell or behind the seats. There is a danger that the seats and/or objects could be dam-
aged when PRE-SAFE
®is activated.
Despite your vehicle being equipped with the
PRE-SAFE
®system, the possibility of personal
injuries occurring as a result of an accident can-
not be eliminated. Always adapt your driving
style to suit the prevailing road and weather
conditions and maintain a safe distance from
the vehicle in front. Drive carefully.
Function
PRE-SAFE®intervenes:
Rin emergency braking situations, e.g. when
BAS is activated
Rin critical driving situations, e.g. when physi-
cal limits are exceeded and the vehicle under-
steers or oversteers severely
Rvehicles with the Driving Assistance package:
when a driver assistance system intervenes
powerfully or the radar sensor system detects
an imminent danger of collision in certain sit- uations
58Occupant safety
Safety

PRE-SAFE®takes the following measures
depending on the hazardous situation detected:
Rthe front seat belts are pre-tensioned.
Rif the vehicle skids, the side windows and the
panorama roof with power tilt/sliding panel
are closed.
Rvehicles with the memory function for the
front-passenger seat: the front-passenger
seat is adjusted if it is in an unfavorable posi-
tion.
If the hazardous situation passes without result-
ing in an accident, PRE-SAFE
®slackens the belt
pre-tensioning. All settings made by PRE-SAFE®
can then be reversed.
If the seat belt pre-tensioning is not reduced:
XMove the seat backrest or seat back slightly
when the vehicle is stationary.
The seat belt pre-tensioning is reduced and
the locking mechanism is released.
The seat-belt adjustment is an integral part of
the PRE-SAFE
®convenience function. Informa-
tion about the convenience function can be
found under "Belt adjustment" (
Ypage 48).
PRE-SAFE®PLUS (anticipatory occu-
pant protection system PLUS)
Introduction
PRE-SAFE®PLUS is only available in vehicles
with the Driving Assistance package.
Using the radar sensor system, PRE-SAFE
®
PLUS is able to detect that a head-on or rear-end
collision is imminent. In certain hazardous sit-
uations, PRE-SAFE
®PLUS takes pre-emptive
measures to protect the vehicle occupants.
Important safety notes
The intervention of PRE-SAFE®PLUS cannot
prevent an imminent collision.
The driver is not warned about the intervention
of PRE-SAFE
®PLUS.
PRE-SAFE®PLUS does not intervene:
Rif the vehicle is backing up
Rwhen the vehicle is towing a trailer and there
is a risk of a rear-end collision When driving, or when parking or exiting a park-
ing space with assistance from Parking Pilot,
PRE-SAFE
®PLUS will not apply the brakes.
Function
PRE-SAFE®PLUS intervenes in certain situa-
tions if the radar sensor system detects an
imminent head-on or rear-end collision.
PRE-SAFE
®PLUS takes the following measures
depending on the hazardous situation detected:
Rif the radar sensor system detects that a
head-on collision is imminent, the seat belts
are pre-tensioned.
Rif the radar sensor system detects that a rear-
end collision is imminent:
-the brake pressure is increased if the driver
applies the brakes when the vehicle is sta- tionary.
-the seat belts are pre-tensioned.
The PRE-SAFE®PLUS braking application is can-
celed:
Rif the accelerator pedal is depressed when a
gear is engaged
Rif the risk of a collision passes or is no longer
detected
Rif Distance Pilot DISTRONIC indicates an
intention to pull away
If the hazardous situation passes without result-
ing in an accident, the original settings are
restored.
Automatic measures after an acci-
dent
Immediately after an accident, the following
measures are implemented, depending on the
type and severity of the impact:
Rthe hazard warning lamps are switched on
Rthe emergency lighting is activated
Rthe vehicle doors are unlocked
Rthe front side windows are lowered
Rvehicles with a memory function: the electri-
cally adjustable steering wheel is raised when
the driver's door is opened
Rthe engine is switched off and the fuel supply
is cut off
Rvehicles with mbrace: automatic emergency
call
Occupant safety59
Safety
Z

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