ABS MERCEDES-BENZ GLC 2017 Owners Manual

1, 2, 3 ...4ETS (Electronic Traction System)
see ETS/4ETS (Electronic Trac-
tion System)
4MATIC (permanent four-wheel
drive) .................................................. 175
12 V socket
see Socket (12 V)
115 V socket ...................................... 294
360° camera
Cleaning ........................................ .3 16
Display in the multimedia system .. 188
Function/notes ............................ .1 87
AABS (Anti-lock Braking System)
Display message ............................ 228
Function/notes ................................ 65
Warning lamp ................................. 259
Accident
Automatic measures after an acci-
dent ................................................. 58
Activating media mode
General notes ................................ 276
Activating/deactivating cooling
with air dehumidification ................. 125
Active Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 221
Display message ............................ 246
Function/notes ............................ .1 97
Active Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 221
Display message ............................ 245
Function/information .................... 200
Active light function
Display message ............................ 239
Active Parking Assist
Canceling ....................................... 182
Detecting parking spaces .............. 179
Exiting a parking space .................. 181
Function/notes ............................. 178
Important safety notes .................. 178
Parking .......................................... 180
ADAPTIVE BRAKE ................................. 73 Adaptive Brake Assist
Function/notes ................................ 69
Adaptive Damping System
Function/notes ............................. 174
Adaptive Damping System (ADS) ..... 173
Adaptive Highbeam Assist
Display message ............................ 240
Function/notes ............................. 113
Switching on/off ........................... 114
Additional speedometer ................... 223
Additives (engine oil) ........................ 368
Address book
see also Digital Operator's Man-
ual .................................................. 268
Adjusting the volume
Multimedia system ........................ 269
Air bags
Deployment ..................................... 55
Display message ............................ 237
Front air bag (driver, front
passenger) ....................................... 49
Important safety notes .................... 48
Introduction ..................................... 48
Knee bag .......................................... 50
Occupant Classification System
(OCS) ............................................... 51
P ASSENGER AIR BAG indicator
lamps ............................................... 44
Side impact air bag .......................... 50
Window curtain air bag .................... 50
AIR BODY CONTROL
Display message ............................ 244
Function/notes ............................. 172
Lowering the rear of the vehicle .... 174
Raising the rear of the vehicle ....... 174
Setting the normal vehicle level ..... 173
Setting the raised vehicle level ...... 173
Air filter (display message) .............. 243
Air suspension
see AIR BODY CONTROL
Air vents
Important safety notes .................. 129
Rear ............................................... 130
Setting ........................................... 129
Setting the center air vents ........... 130
Setting the side air vents ............... 130
Air-conditioning system
see Climate control4
Index

Airbag
Warning lamp ................................ .2 62
Alarm
ATA (Anti-Theft Alarm system) ......... 76
Switching off (ATA) .......................... 76
Switching the function on/off
(ATA) ................................................ 76
Alarm system
see ATA (Anti-Theft Alarm system)
AMG
Performance Seat .......................... 102
AMG menu (on-board computer) ..... 224
Anti-lock braking system
see ABS (Anti-lock Braking System)
Armrest
Stowage compartment .................. 279
Ashtray ............................................... 292
Assistance display (on-board com-
puter) ................................................. .2 19
Assistance menu (on-board com-
puter) ................................................. .2 20
ASSYST PLUS
Displaying a service message ....... .3 10
Driving abroad ............................... 311
Hiding a service message .............. 310
Resetting the service interval dis-
play ................................................ 311
Service message ............................ 310
Special service requirements ......... 311
ATA (Anti-Theft Alarm system)
Activating/deactivating ................... 76
Function .......................................... .7 6
Switching off the alarm .................... 76
ATTENTION ASSIST
Activating/deactivating ................. 221
Display message ............................ 244
Displaying level .............................. 192
Function/notes ............................. 191
Authorized Mercedes-Benz Center
see Qualified specialist workshop
Authorized workshop
see Qualified specialist workshop
AUTO lights
Display message ............................ 239
see Lights
Automatic car wash (care) ............... 311 Automatic engine start (ECO start/
stop function) .................................... 137
Automatic engine switch-off (ECO
start/stop function) .......................... 136
Automatic headlamp mode .............. 111
Automatic transmission
Accel erato r pedal position ............. 143
C
hanging gear ............................... 143
DIRECT SELECT lever ..................... 141
Display message ............................ 252
Double-clutch function .................. 143
Drive program ................................ 144
Drive program display .................... 142
Driving tips .................................... 143
DYNAMIC SELECT switch .............. 139
Emergency running mode .............. 148
Engaging drive position .................. 142
Engaging neutral ............................ 142
Engaging park position automati-
cally ............................................... 141
Engaging reverse gear ................... 142
Engaging the park position ............ 141
Gearshift recommendation ............ 147
Gliding mode ................................. 144
Kickdown ....................................... 144
Manual shifting .............................. 145
Oil temperature (on-board com-
puter, Mercedes-AMG vehicles) ..... 224
Overview ........................................ 141
Permanent setting ......................... 146
Problem (malfunction) ................... 148
Pulling away ................................... 135
Starting the engine ........................ 134
Steering wheel paddle shifters ...... 145
Trailer towing ................................. 144
Transmission position display
(DIRECT SELECT lever) ................... 142
Transmission positions .................. 143
Automatic transmission emer-
gency mode ....................................... 148
Axle load, permissible (trailer tow-
ing) ...................................................... 371
B
Back button ....................................... 269
Backup lamp
Display message ............................ 239 Index 5

Replacin g bulbs ............................ .1 18
Bag hook ............................................ 284
Ball coupling
Installing ........................................ 204
Removing ....................................... 206
BAS (Brake Assist System) ................. 65
BAS PLUS with Cross-Traffic Assist
(Brake Assist PLUS with Cross-
Traffic Assist)
Function/notes ................................ 66
Important safety notes .................... 66
Battery (SmartKey)
Checking .......................................... 80
Important safety notes .................... 80
Replacing ......................................... 80
Battery (vehicle)
Charging ........................................ 327
Display message ............................ 241
Important safety notes .................. 325
Jump starting ................................. 328
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 221
Display message ............................ 246
Notes/function .............................. 193
see Active Blind Spot Assist
Blootooth ®
Connecting a different mobile
phone ............................................ 276
BlueTEC
see DEF
Bluetooth ®
Searching for a mobile phone ....... .2 75
see also Digital Operator's Man-
ual ................................................. .2 68
Telephony ...................................... 275
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 233
Notes ............................................. 368
Brake force distribution
see EBD (electronic brake force
distribution)
Brake linings
Display message ............................ 233 Brakes
ABS ................................................. .6 5
Adaptive Brake Assist ...................... 69
BAS .................................................. 65
BAS PLUS with Cross-Traffic
Assist ............................................... 66
Brake fluid (notes) ......................... 368
Display message ............................ 228
EBD .................................................. 73
Hill start as sist ............................... 136
HO LD function ............................... 171
Important safety notes .................. 159
Maintenance .................................. 160
Parking brake ................................ 155
Riding tips ...................................... 159
Warning lamp ................................. 258
Breakdown
Where will I find...? ........................ 319
see Flat tire
see Towing away
Brightness control (instrument
cluster lighting) ................................... 35
Buttons on the steering wheel ......... 209
C
California
Important notice for retail cus-
tomers and lessees .......................... 28
Calling up a malfunction
see Display messages
Calling up the climate control bar
Multimedia system ........................ 272
Calling up the climate control
menu
Multimedia system ........................ 272
Camera
see 360° camera
see Rear view camera
Car
see Vehicle
Care
360° camera ................................. 316
Car wash ........................................ 311
Carpets .......................................... 318
Display ........................................... 316
Exhaust pipe .................................. 316
Exterior lights ................................ 3156
Index

DEF
Addin g .......................................... .1 51
Display message ............................ 243
Displaying level and range ............. 219
Filling capacity ............................... 367
Important safety notes .................. 367
Low outside temperatures ............. 367
Purity ............................................. 367
DEF ®
Additives ........................................ 367
Diagnostics connection ..................... .3 1
Diesel .................................................. 36 6
Digital Operator's Manua l
Help ................................................ .2 6
Introduction .................................... .2 6
Digital speedomete r ........................ .2 13
DIRECT SELECT lever
Automatic transmission ................. 141
Display
see Display messages
see Warning and indicator lamps
Display messages
ASSYST PLUS ................................ 310
Calling up (on-board computer) ..... 227
Driving systems ............................ .2 44
Engine ............................................ 240
General notes ................................ 227
Hiding (on-board computer) ........... 227
Introduction ................................... 227
Lights ............................................. 239
Safety systems .............................. 228
SmartKey ....................................... 255
Tires ............................................... 250
Vehicle .......................................... .2 52
Distance recorder ............................ .2 12
Distance warning (warning lamp) .... 265
Distance warning function
Function/notes ................................ 68
Distance warning system
see COLLISION PREVENTION
ASSIST PLUS
DI STRONIC PL US
Acti
vating ....................................... 165
Activation conditions ..................... 165
Cruise control lever ....................... 165
Deactivating ................................... 169
Display message ............................ 247 Displays in the instrument cluster .. 168
Driving tips ................................... .1 69
Driving with DISTRONIC PLUS ....... 166
Function/notes ............................ .1 64
Important safety notes .................. 164
Setting a speed .............................. 167
Setting the specified minimum
distance ......................................... 167
Stopping ........................................ 167
with Steering Assist and Stop&Go
Pilot ............................................... 169
Doors
Automatic locking (switch) .............. .8 4
Central locking/unlocking
(Sm artKey) ...................................... .7 7
Control panel .................................. .4 2
Display message ............................ 254
Emergency locking ........................... 84
Emergency unlocking ....................... 84
Important safety notes .................... 83
Opening (from inside) ...................... 83
Drinking and driving ......................... 157
Drive program
Automatic transmission ................. 144
SETUP (on-board computer,
Mercedes-AMG vehicles) ............... 225
Drive programs
Display (DIRECT SELECT lever) ...... 142
DYNAMIC SELECT switch .............. 139
Driver's door
see Doors
Driving abroad
Mercedes-Benz Service ................. 311
Driving Assistance PLUS package ... 197
Driving on flooded roads .................. 161
Driving safety system
Crosswind Assist ............................. 73
Driving safety systems
ABS (Anti-lock Braking System) ....... 65
ADAPTIVE BRAKE ............................. 73
Adaptive Brake Assist ...................... 69
BAS ( Bra ke Assist System) .............. 65
BAS PLUS with Cross-Traffic
Assist ............................................... 66
COLLISION PREVENTION ASSIST
PLUS ................................................ 67
Distance warning function ............... 68 Index 9

Locking (in an emergency) ............... 84
Locking (SmartKey) .......................... 77
Lowering ........................................ 360
Maintenance .................................... 29
Operating safety .............................. 30
Operation outside the USA/
Canada ............................................ 29
Parking .......................................... 154
Parking for a long period ................ 157
Pulling away ................................... 135
Raising ........................................... 357
Reporting problems ......................... 31
Securing from rolling away ............ 357
Technical data ............................... 362
Towing away .................................. 330
Transporting .................................. 332
Unlocking (in an emergency) ........... 84
Unlocking (SmartKey) ...................... 77
Vehicle data ................................... 370
Vehicle data
Dimensions .................................... 370
Vehicle emergency locking ................ 84
Vehicle identification number
see VIN
Vehicle identification plate .............. 363
Vehicle level
AIR BODY CONTROL ...................... 173
Display message ............................ 244
Video
Operating the DVD ......................... 217
see also Digital Operator's Man-
ual .................................................. 268
VIN
Seat ............................................... 364
Type plate ...................................... 363
W
Warning and indicator lamps
ABS ................................................ 259
Air bags ......................................... 262
Brakes ........................................... 258
Coolant .......................................... 263
Distance warning ........................... 265
Engine diagnostics ......................... 263
ESP ®
.............................................. 259
ESP ®
OFF ....................................... 261
Fuel tank ........................................ 263 General notes ................................ 256
Overview .......................................... 36
Parking brake ................................ 262
PASSENGER AIR BAG ...................... 44
Reserve fuel ................................... 263
Restraint system ............................ 262
Seat belt ........................................ 256
SPORT handling mode ................... 261
Steering ......................................... 267
Tire pressure monitor .................... 266
Warranty .............................................. 28
Washer fluid
Display message ............................ 254
Weather display (COMAND)
see also Digital Operator's Man-
ual .................................................. 268
Wheel and tire combinations
Tires ............................................... 360
Wheel bolt tightening torque ........... 360
Wheel chock ...................................... 357
Wheels
Changing a wheel .......................... 356
Checking ........................................ 336
Cleaning ......................................... 314
Important safety notes .................. 336
Information on driving .................... 336
Interchanging/changing ................ 356
Mounting a new wheel ................... 359
Mounting a wheel .......................... 357
Removing a wheel .......................... 359
Snow chains .................................. 338
Storing ........................................... 357
Tightening torque ........................... 360
Wheel size/tire size ....................... 360
Window curtain air bag
Display message ............................ 236
Operation ......................................... 50
Windows
see Side windows
Windshield
Defrosting ...................................... 126
Windshield washer fluid
see Windshield washer system
Windshield washer system
Adding washer fluid ....................... 310
Important safety notes .................. 369
Windshield wipers
Problem (malfunction) ................... 12224
Index

occupant in the best position in relation to the
air bag.
The seat belt system comprises: R
Seat belts R
Emergency Tensioning Devices for the front
seat belts and the outer seat belts in the rear R
Seat belt force limiters for the front seat belts
and the outer seat belts in the rear
If the seat belt is pulled out of the belt outlet
quickly or with a jerky movement, the belt
retractor locks. The belt strap cannot be extrac-
ted any further.
The Emergency Tensioning Device tightens the
seat belt in an accident, pulling the belt close
against the body. However it does not pull the
vehicle occupant back in the direction of the
backrest.
The Emergency Tensioning Device does not cor-
rect an incorrect seat position or the routing of
an incorrectly fastened seat belt.
When triggered, a seat belt force limiter helps to
reduce the force exerted by the seat belt on the
vehicle occupant.
The seat belt force limiters for the front seats are
synchronized with the front air bags, which
absorb part of the deceleration force. This can
reduce the force exerted on the vehicle occu-
pants during an accident.
! If the front-passenger seat is unoccupied,
do not insert the belt tongue into the buckle of
the front-passenger seat. This may otherwise
lead to the triggering of the Emergency Ten-
sioning Device in the event of an accident,
which will then need to be replaced.
Important safety notes The use of seat belts and child restraint systems
is required by law in: R
all 50 states R
the U.S. territories R
the District of Columbia R
all Canadian provinces
Even where this is not required by law, all vehicle
occupants should correctly fasten their seat
belts before starting the journey.
G WARNING
If the seat belt is not worn correctly, it cannot
perform its intended protective function. An
incorrectly fastened seat belt can also cause injuries, for example, in the event of an acci-
dent or when braking or changing direction
abruptly. This poses an increased risk of injury
or even fatal injury.
Always ensure that all vehicle occupants have
their seat belts fastened correctly and are sit-
ting properly.
G WARNING
The seat belt does not offer the intended level
of protection if you have not moved the back-
rest to an almost vertical position. When brak-
ing or in the event of an accident, you could
slide underneath the seat belt and sustain
abdomen or neck injuries, for example. This
poses an increased risk of injury or even fatal
injury.
Adjust the seat properly before beginning
your journey. Always ensure that the backrest
is in an almost vertical position and that the
shoulder section of your seat belt is routed
across the center of your shoulder.
G WARNING
Persons less than 5 ft (1.50 m) tall cannot
wear the seat belt correctly without an addi-
tional and suitable restraint system. If the
seat belt is not worn correctly, it cannot per-
form its intended protective function. An
incorrectly fastened seat belt can also cause
injuries, for example, in the event of an acci-
dent or when braking or changing direction
abruptly. This poses an increased risk of injury
or even fatal injury.
For this reason, always secure persons under
5 ft (1.50 m) tall in suitable additional restraint
systems.
If a child younger than twelve years old and
under 5 ft (1.50 m) in height is traveling in the
vehicle: R
always secure the child in a child restraint
system suitable for this Mercedes-Benz vehi-
cle. The child restraint system must be appro-
priate to the age, weight and size of the child R
always observe the instructions and safety
notes on "Children in the vehicle"
( Y
page 59) in addition to the child restraintOccupant safety 45
Safety Z

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: R
the side impact air bag R
the window curtain air bag R
the Emergency Tensioning Devices
Requirements To be classified correctly, the front passenger
must sit: R
with the seat belt fastened correctly R
in an almost upright position with their back
against the seat backrest R
with 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: R
transfers their weight by supporting them-
selves on a vehicle armrest R
sits 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)
C
PASSENGER AIR BAG ON indicator lamp D
PASSENGER AIR BAG OFF indicator lamp
The indicator lamps inform you whether the
front-passenger front air bag is deactivated or
enabled. X
Press the Start/Stop button once or twice, or
turn the SmartKey to position 1 or 2 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. R
PASSENGER 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. R
PASSENGER 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.
If the status of the front-passenger front air bag
changes while the vehicle is in motion, an air bag
display message appears in the instrument clus-
ter ( Y
page 237). When the front-passenger
seat is occupied, always pay attention to the
PASSENGER AIR BAG OFF indicator lamp. Be
aware of the status of the front-passenger front
air bag both before and during the journey.Occupant safety 51
Safety Z

Installing a child restraint system: X
Make sure you observe the child restraint
system manufacturer's installation instruc-
tions. X
Pull the seat belt smoothly from the belt out-
let. X
Engage seat belt tongue in belt buckle.
Activating the special seat belt retractor: X
Pull the seat belt out fully and let the inertia
reel retract it again.
While the seat belt is retracting, you should
hear a ratcheting sound. The special seat belt
retractor is enabled. X
Push the child restraint system down so that
the seat belt is tight and does not loosen.
Removing the child restraint system and deac-
tivating the special seat belt retractor: X
Make sure you observe the child restraint
system manufacturer's installation instruc-
tions. X
Press the release button of the seat belt
buckle and guide the seat belt tongue back
towards the belt sash guide.
The special seat belt retractor is deactivated.
Child restraint system The use of seat belts and infant and child
restraint systems is required by law in: R
all 50 states R
the U.S. territories R
the District of Columbia R
all Canadian provinces
You can obtain further information about the
correct child restraint system from any author-
ized Mercedes-Benz Center.
G WARNING
If the child restraint system is installed incor-
rectly on a suitable seat, it cannot protect as
intended. The child cannot then be restrained
in the event of an accident, heavy braking or
sudden changes of direction. There is an
increased risk of injury, possibly even fatal.
Make sure that you observe the child restraint
system manufacturer's installation instruc-
tions and the notes on use. Please ensure,
that the base of the child restraint system is always resting completely on the seat cush-
ion. Never place objects, e.g. cushions, under
or behind the child restraint system. Only use
child restraint systems with the original cover
designed for them. Only replace damaged
covers with genuine covers.
G WARNING
If the child restraint system is installed incor-
rectly or is not secured, it can come loose in
the event of an accident, heavy braking or a
sudden change in direction. The child
restraint system could be thrown about, strik-
ing vehicle occupants. There is an increased
risk of injury, possibly even fatal.
Always install child restraint systems prop-
erly, even if they are not being used. Make
sure that you observe the child restraint sys-
tem manufacturer's installation instructions.
You will find further information on stowing
objects, luggage and loads securely under
"Loading guidelines" ( Y
page 278).
G WARNING
Child restraint systems or their securing sys-
tems which have been damaged or subjected
to a load in an accident can no longer protect
as intended. The child cannot then be
restrained in the event of an accident, heavy
braking or sudden changes of direction. There
is an increased risk of injury, possibly even
fatal.
Replace child restraint systems which have
been damaged or subjected to a load in an
accident as soon as possible. Have the secur-
ing systems on the child restraint system
checked at a qualified specialist workshop,
before you install a child restraint system
again.
Securing systems for child restraint systems
include: R
the seat belt system R
the LATCH-type (ISOFIX) securing rings R
Top Tether anchorage points
If it is absolutely necessary to carry a child on
the front-passenger's seat, be sure to observe60
Children in the vehicle
Safety

Child-proof locks for the rear doors
You secure each door individually with the child-
proof locks on the rear doors. A door secured
with a child-proof lock cannot be opened from
inside the vehicle. When the vehicle is unlocked,
the door can be opened from the outside. X
To activate: press the child-proof lock lever
up in the direction of arrow C .X
Make sure that the child-proof locks are work-
ing properly. X
To deactivate: press the child-proof lock
lever down in the direction of arrow D .
Override feature for the rear side win-
dows
X
To enable/disable: press button D .
If indicator lamp C is lit, operation of the rear
side windows is disabled. Operation is only
possible using the switches in the driver's
door. If indicator lamp C is off, operation is
possible using the switches in the rear com-
partment. Pets in the vehicle
G WARNING
If you leave animals unattended or unsecured
in the vehicle, they could press buttons or
switches, for example.
As a result, they could: R
activate vehicle equipment and become
trapped, for example R
activate or deactivate systems, thereby
endangering other road users
Unsecured animals could also be flung around
the vehicle in the event of an accident or sud-
den steering or braking, thereby injuring vehi-
cle occupants. There is a risk of an accident
and injury.
Never leave animals unattended in the vehi-
cle. Always secure animals properly during
the journey, e.g. use a suitable animal trans-
port box.
Driving safety systems
Overview of driving safety systems In this section, you will find information about
the following driving safety systems: R
ABS ( A nti-lock B raking S ystem)
( Y
page 65) R
BAS ( B rake A ssist S ystem) ( Y
page 65)R
BAS PLUS with Cross-Traffic Assist ( B rake
A ssist S ystem PLUS with Cross-Traffic Assist)
( Y
page 66) R
COLLISION PREVENTION ASSIST PLUS
( Y
page 67) R
ESP ®
( E lectronic S tability P rogram)
( Y
page 70) R
EBD ( E lectronic B rake force D istribution)
( Y
page 73) R
ADAPTIVE BRAKE ( Y
page 73)R
PRE-SAFE ®
Brake ( Y
page 73)R
STEER CONTROL ( Y
page 75)64
Driving safety systems
Safety

Important safety notes If you fail to adapt your driving style or if you are
inattentive, th e driving safet y systems can nei-
ther reduce th e ris k of an acciden t no r override
th e laws of physics . Drivin g safet y systems are
merely aids designed to assist driving . You are
responsible for maintainin g th e distanc e to th e
vehicl e in front, for vehicl e speed, for braking in
goo d time, and for staying in lane. Always adapt
your driving style to suit th e prevailing road and
weather condition s and maintai n a saf e distanc e
from th e vehicl e in front. Drive carefully.
The driving safet y systems describe d only wor k
as effectivel y as possible when there is ade-
quat e contact between th e tires and th e road
surface. Pay particular attention to th e informa-
tion regarding tires , recommended minimum
tire tread depths etc. in th e "Wheels and tires "
section ( Y
page 336).
In wintr y driving conditions, always use winte r
tires (M+ S tires )a nd 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
i Observe the "Important safety notes" sec-
tion ( Y
page 65).
G WARNING
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 ( Y
page 259) and dis-
play messages which may be shown in the
instrument cluster ( Y
page 228).
Braking X
If ABS intervenes: continue to depress the
brake pedal vigorously until the braking sit-
uation is over. X
To 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.
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
i Observe the "Important safety notes" sec-
tion ( Y
page 65).
G WARNING
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.Driving safety systems 65
Safety Z