check engine MERCEDES-BENZ GLE 2018 Owners Manual

Coat hooks ........................................ .3 02
Cockpit
Overview .......................................... 36
see Instrument cluster
Collapsible spare wheel
Inflating ......................................... 379
see Emergency spare wheel
COMAND
Driving dynamics display ............... 218
COMAND display
Cleaning ......................................... 331
Combination switch .......................... 111
Connecting a USB device
see also Digital Operator's Man-
ual .................................................. 287
Consumption statistics (on-board
computer) .......................................... 231
Controller ........................................... 288
Convenience closing feature .............. 90
Convenience opening feature ............ 89
Coolant (engine)
Checking the level ......................... 324
Display message ............................ 256
Filling capacity ............................... 389
Important safety notes .................. 388
Temperature (on-board computer,
Mercedes-AMG vehicles) ............... 240
Temperature gauge ........................ 229
Warning lamp ................................. 283
Cooling
see Climate control
Copyright ............................................. 35
Cornering light function
Display message ............................ 255
Crash-responsive emergency light-
ing ....................................................... 115
Crosswind Assist ................................. 72
Crosswind driving assistance ............ 72
Cruise control
Activating ....................................... 170
Activation conditions ..................... 170
Cruise control lever ....................... 170
Deactivating ................................... 171
Display message ............................ 266
Driving system ............................... 169
Function/notes ............................. 169
Important safety notes .................. 169 Storing and maintaining current
speed ............................................. 170
Cup holder
Center console .............................. 305
Important safety notes .................. 304
Rear compartment ......................... 305
Temperature controlled ................. 305
Customer Ass istance Center
( CAC) ..................................................... 31
Customer Relations Department ....... 31
D Dashboard
see Instrument cluster
Data
see Technical data
Data carrier
Selecting ........................................ 234
Daytime running lamps
Display message ............................ 255
Function/notes ............................. 110
Switching on/off (on-board com-
puter) ............................................. 238
Declarations of conformity ................. 30
DEF
Adding ........................................... 153
Display message ............................ 259
Filling capacity ............................... 387
Important safety notes .................. 386
Diagnostics connection ...................... 31
Differential lock (display mes-
sage) ................................................... 262
Digital Operator's Manual
Help ................................................. 26
Introduction ..................................... 26
Digital speedometer ......................... 232
DIRECT SELECT lever
Automatic transmission ................. 143
Display messages
ASSYST PLUS ................................ 325
Calling up (on-board computer) ..... 243
Driving systems ............................. 260
Engine ............................................ 256
General notes ................................ 243
Hiding (on-board computer) ........... 243
KEYLESS-GO .................................. 273
Lights ............................................. 2558
Index

Active Lane Keeping Assist ............ 210
ADS ............................................... 183
AMG adaptive sport suspension
system ........................................... 186
ATTENTION ASSIST ........................ 202
Blind Spot Assist ............................ 204
Cruise control ................................ 169
Display message ............................ 260
Driving Assistance Plus package ... 208
HOLD function ............................... 182
Lane Keeping Assist ...................... 206
Level control (vehicle with the Off-
Road Engineering package) ........... 179
Rear view camera .......................... 194
Traffic Sign Assist .......................... 203
Driving tips
Automatic transmission ................. 146
Brakes ........................................... 161
Break-in period .............................. 134
Distance Pilot DISTRONIC ............. 177
Downhill gradient ........................... 161
Drinking and driving ....................... 160
Driving in winter ............................. 164
Driving on flooded roads ................ 163
Driving on sand .............................. 167
Driving on wet roads ...................... 163
Driving over obstacles ................... 168
Exhaust check ............................... 160
Fuel ................................................ 159
General .......................................... 159
Hydroplaning ................................. 163
Icy road surfaces ........................... 164
Limited braking efficiency on sal-
ted roads ....................................... 162
Off-road driving .............................. 165
Off-road fording ............................. 164
Snow chains .................................. 353
The first 1000 miles (1500 km) ..... 134
Tire ruts ......................................... 167
Towing a trailer .............................. 220
Traveling uphill ............................... 168
Wet road surface ........................... 162
DSR (Downhill Speed Regulation)
Display message ............................ 262
Function/notes ............................. 213
DVD video
Operating (on-board computer) ..... 234 see also Digital Operator's Man-
ual .................................................. 287
DYNAMIC SELECT controller
Automatic transmission ................. 142
E EASY-ENTRY feature
Activating/deactivating ................. 239
Function/notes ............................. 104
EASY-EXIT feature
Crash-responsive ........................... 105
Function/notes ............................. 104
Switching on/off ........................... 239
EASY-PACK cargo compartment
management system ........................ 302
EBD (electronic brake force distri-
bution)
Display message ............................ 246
Function/notes ................................ 72
ECO display
Function/notes ............................. 160
On-board computer ....................... 232
ECO start/stop function
Automatic engine start .................. 140
Automatic engine switch-off .......... 139
Deactivating/activating ................. 140
General information ....................... 139
Important safety notes .................. 139
Introduction ................................... 139
Electronic Stability Program
see ESP ®
(Electronic Stability Program)
Emergency
Automatic measures after an acci-
dent ................................................. 59
Emergency release
Driver's door .................................... 84
Vehicle ............................................. 84
Emergency spare wheel
General notes ................................ 377
Important safety notes .................. 376
Removing ....................................... 377
Storage location ............................ 377
Stowing .......................................... 377
Emergency Tensioning Devices
Activation ......................................... 56
Emergency unlocking
Tailgate ............................................ 8810
Index

Emissions control
Service and warranty information .... 28
Engine
Check Engine warning lamp .......... .2 83
Display message ............................ 256
ECO start/stop function ................ 139
Engine number ............................... 383
Irregular running ............................ 141
Jump-starting ................................. 342
Starting (important safety notes) ... 136
Starting problems .......................... 141
Starting the engine with the
SmartKey ....................................... 137
Starting via smartphone ................ 137
Starting with KEYLESS-GO ............. 137
Switching off .................................. 157
Tow-starting (vehicle) ..................... 348
Engine electronics
Problem (malfunction) ................... 141
Engine jump starting
see Jump starting (engine)
Engine oil
Adding .......................................... .3 23
Additives ........................................ 388
Checking the oil level ..................... 322
Checking the oil level using the
dipstick .......................................... 323
Display message ............................ 258
Filling capacity ............................... 387
Notes about oil grades ................... 387
Notes on oil level/consumption .... 322
Temperature (on-board computer,
Mercedes-AMG vehicles) .............. .2 40
Engine switch-off
see ECO start/stop function
Entering an address
see also Digital Operator's Man-
ual ................................................. .2 87
ESP ®
(Electronic Stability Pro-
gram)
AMG menu (on-board computer) ... 241
Characteristics ................................. 70
Deactivating/activating ................... 71
Display message ............................ 244
Function/notes ................................ 70
General notes .................................. 70
Important safety information ........... 70
Warning lamp ................................. 279 ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 70
Exhaust check ................................... 160
Exhaust pipe ( cl
eaning instruc-
tions) ................................................. .3 30
Exterior lighting
see Lights
Exterior mirrors
Adjusting ....................................... 105
Dipping (automatic) ....................... 107
Folding in when locking (on-board
computer) ...................................... 240
Folding in/out (automatically) ....... 106
Folding in/out (electrically) ........... 106
Out of position (troubleshooting) ... 107
Setting ........................................... 106
Storing settings (memory func-
tion) ............................................... 108
Storing the parking position .......... 107
Eyeglasses compartment ................. 297
F Favorites
Overview ........................................ 289
Filler cap
see Refueling
Flat tire
MOExtended tires .......................... 336
Preparing the vehicle ..................... 335
TIREFIT kit ...................................... 337
see Emergency spare wheel
Floormats ........................................... 319
Fog lamps (extended range) ............. 113
Folding the rear bench seat for-
wards/back ....................................... 298
Fording
Off-road ......................................... 164
On flooded roads ........................... 163
Frequencies
Mobile phone ................................. 381
Two-way radio ................................ 381
Fuel
Additives ........................................ 385
Consumption statistics .................. 231
Displaying the current consump-
tion ................................................ 232
Displaying the range ...................... 232 Index 11

see Rear-view mirror
see Vanity mirror (in the sun visor)
Mobile phone
Connecting (Bluetooth ®
inter-
face) ............................................. .2 91
Connecting (device manager) ....... .2 92
Frequencies ................................... 381
Installation ..................................... 381
Menu (on-board computer) ............ 235
Transmission output (maximum) .... 381
Modifying the programming
(SmartKey) .......................................... .7 9
MOExtended tires .............................. 336
Mounting wheels
Lowering the vehicle ...................... 375
Mounting a new wheel ................... 374
Preparing the vehicle .................... .3 72
Raising the vehicle ......................... 373
Removing a wheel .......................... 374
Securing the vehicle against roll-
ing away ........................................ 372
MP3
Operation ....................................... 234
see also Digital Operator's Man-
ual ................................................. .2 87
Multifunction display
Function/notes ............................ .2 30
Permanent display ......................... 238
Multifunction steering wheel
Operating the on-board computer .. 229
Overview .......................................... 38
Multimedia system
Switching on and off ..................... .2 88
Music files
see also Digital Operator's Man-
ual .................................................. 287
N
Navigation
Entering a destination .................... 289
Menu (on-board computer) ............ 232
see also Digital Operator's Man-
ual .................................................. 287
Notes on breaking-in a new vehi-
cle ....................................................... 134 O Occupant Classification System
(OCS)
Conditions ....................................... 52
Faults ............................................... 55
Operation ......................................... 52
System self-test ............................... 54
Occupant safety
Air bags ........................................... 49
Automatic measures after an acci-
dent ................................................. 59
Belt warning ..................................... 48
Children in the vehicle ..................... 59
Important safety notes .................... 44
Introduction to the restraint sys-
tem .................................................. 44
Occupant Classification System
(OCS) ............................................... 51
PASSENGER AIR BAG indicator
lamps ............................................... 45
Pets in the vehicle ........................... 65
PRE-SAFE ®
(anticipatory occu-
pant protection) ............................... 58
PRE-SAFE ®
PLUS (anticipatory
occupant protection PLUS) .............. 59
Restraint system warning lamp ........ 45
Seat belt .......................................... 45
OCS
Conditions ....................................... 52
Faults ............................................... 55
Operation ......................................... 52
System self-test ............................... 54
Odometer ........................................... 231
Off-road driving
Approach/departure angle ............ 393
Checklist after driving off-road ...... 167
Checklist before driving off-road .... 166
Fording depth ................................ 392
General information ....................... 165
Important safety notes .................. 165
Maximum gradient climbing abil-
ity .................................................. 393
Traveling uphill ............................... 168
Off-road lights .................................... 113
Off-Road program (vehicles with-
out Off-Road Engineering package)
Function/notes ............................. 214 Index 15

Seat belts
Adjusting the driver's and front-
passenger seat belt ........................ .4 8
Adjusting the height ......................... 48
Cleaning ......................................... 332
Correct usage .................................. 47
Fastening ......................................... 48
Important safety guidelines ............. 46
Introduction .................................... .4 5
Releasin g ......................................... 48
Switching belt adjustment on/off
(on-board computer) ...................... 239
Warning lamp ................................. 274
Warning lamp (function) ................... 48
Seats
Adjusting (electrically) ..................... 98
Adjusting the 4-way lumbar sup-
port ................................................ 101
Adjusting the head restraint ............ 99
Calling up a stored setting (mem-
ory function) .................................. 109
Cleaning the cover ......................... 332
Folding the rear bench seat for-
wards/back ................................... 298
Important safety notes .................... 97
Overview .......................................... 97
Seat heating problem .................... 103
Seat ventilation problem ................ 103
Storing settings (memory func-
tion) ............................................... 108
Switching seat heating on/off ....... 101
Switching seat ventilation on/off .. 102
Section
Sliding sunroof ................................. 92
Securing hooks .................................. 300
Selector lever
Cleaning ......................................... 332
Sensors (cleaning instructions) ....... 330
Service menu (on-board com-
puter) .................................................. 237
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 388
Coolant (engine) ............................ 388
DEF special additives ..................... 386
Engine oil ....................................... 387
Fuel ................................................ 384 Important safety notes .................. 383
Refrigerant (air-conditioning sys-
tem) ............................................... 389
Washer fluid ................................... 389
Setting the air distribution ............... 129
Setting the airflow ............................ 129
Setting the date / time format
see also Digital Operator's Man-
ual .................................................. 287
Setting the language
see also Digital Operator's Man-
ual .................................................. 287
Setting the time
see also Digital Operator's Man-
ual .................................................. 287
Settings
Factory (on-board computer) ......... 240
On-board computer ....................... 238
SETUP (on-board computer,
Mercedes-AMG vehicles) .................. 241
Side impact air bag ............................. 51
Side marker lamp (display mes-
sage) ................................................... 255
Side windows
Cleaning ......................................... 329
Convenience closing feature ............ 90
Convenience opening feature .......... 89
Important safety information ........... 88
Opening/closing .............................. 89
Overview .......................................... 88
Problem (malfunction) ..................... 91
Resetting ......................................... 91
Reversing feature ............................. 89
SIRIUS services
see also Digital Operator's Man-
ual .................................................. 287
Sliding sunroof
Important safety notes .................... 92
Opening/closing .............................. 93
Problem (malfunction) ..................... 95
Resetting ......................................... 93
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery ....................... 80
Changing the programming ............. 79
Checking the battery ....................... 80 Index 19

Tailgate
Display message ............................ 271
Emergency unlocking ....................... 88
Important safety notes .................... 84
Limiting the opening angle ............... 88
Opening dimensions ...................... 390
Opening/closing (automatically
from inside) ...................................... 87
Opening/closing (automatically
from outside) ................................... 86
Opening/closing (from outside) ....... 85
Power closing .................................. 84
Tank
see Fuel tank
Tank content
Fuel gauge ....................................... 37
Technical data
Capacities ...................................... 383
Information .................................... 381
Tires/wheels ................................. 376
Trailer loads ................................... 394
Vehicle data ................................... 390
Telephone
Accepting a call (multifunction
steering wheel) .............................. 235
Authorizing a mobile phone (con-
necting) ......................................... 291
Authorizing a mobile phone via the
device manager (connecting) ......... 292
Connecting a mobile phone
(device manager) ........................... 292
Connecting a mobile phone (gen-
eral information) ............................ 291
Display message ............................ 272
Menu (on-board computer) ............ 235
Number from the phone book ........ 235
Redialing ........................................ 235
Rejecting/ending a call ................. 235
see also Digital Operator's Man-
ual .................................................. 287
Temperature
Coolant (display in the instrument
cluster) .......................................... 229
Coolant (on-board computer,
Mercedes-AMG vehicles) ............... 240
Engine oil (on-board computer,
Mercedes-AMG vehicles) ............... 240
Outside temperature ...................... 228 Setting (climate control) ................ 128
Transmission oil (on-board com-
puter, Mercedes-AMG vehicles) ..... 240
Through-loading feature ................... 298
Timing ( RACETIMER) ......................... 241
Tire pressure
Calling up (on-board computer) ..... 358
Checking manually ........................ 357
Display message ............................ 268
Maximum ....................................... 357
Not reached (TIREFIT) .................... 338
Notes ............................................. 356
Reached (TIREFIT) .......................... 339
Recommended ............................... 354
Tire pressure loss warning system
General notes ................................ 357
Important safety notes .................. 358
Restarting ...................................... 358
Tire pressure monitor
Checking the tire pressure elec-
tronically ........................................ 360
Function/notes ............................. 358
General notes ................................ 358
Important safety notes .................. 359
Radio type approval for the tire
pressure monitor ........................... 361
Restarting ...................................... 361
Warning lamp ................................. 286
Warning message .......................... 360
Tire pressure table ............................ 355
TIREFIT kit
Important safety notes .................. 337
Storage location ............................ 335
Tire pressure not reached .............. 338
Tire pressure reached .................... 339
Using ............................................. 337
Tires
Aspect ratio (definition) ................. 370
Average weight of the vehicle
occupants (definition) .................... 369
Bar (definition) ............................... 369
Changing a wheel .......................... 371
Characteristics .............................. 369
Checking ........................................ 351
Curb weight (definition) ................. 370
Definition of terms ......................... 369
Direction of rotation ...................... 372
Display message ............................ 268 Index 21

Vehicle battery
see Battery (vehicle)
Vehicle data ....................................... 390
Vehicle data (off-road driving)
Approach/departure angle ............ 393
Fording depth ................................ 392
Maximum gradient climbing abil-
ity .................................................. 393
Vehicle dimensions ........................... 390
Vehicle emergency locking ................ 84
Vehicle identification number
see VIN
Vehicle identification plate .............. 382
Vehicle level
AIRMATIC ...................................... 185
Vehicle level (display message) ....... 260
Vehicle tool kit .................................. 335
Video
Operating the DVD ......................... 234
see also Digital Operator's Man-
ual .................................................. 287
VIN ...................................................... 382
Seat ............................................... 383
Type plate ...................................... 382
W
Warning and indicator lamps
ABS ................................................ 277
Brakes ........................................... 276
Coolant .......................................... 283
Distance Pilot DISTRONIC ............. 285
Distance warning ........................... 285
Engine diagnostics ......................... 283
ESP ®
.............................................. 279
ESP ®
OFF ....................................... 280
Fuel tank ........................................ 283
Overview .......................................... 37
Parking brake ................................ 282
PASSENGER AIR BAG ...................... 45
Reserve fuel ................................... 283
Restraint system ............................ 282
Seat belt ........................................ 274
Tire pressure monitor .................... 286
Warranty .............................................. 28
Washer fluid
Display message ............................ 272 Weather display (COMAND)
see also Digital Operator's Man-
ual .................................................. 287
Wheel and tire combinations
Tires ............................................... 376
Wheel bolt tightening torque ........... 375
Wheel chock ...................................... 372
Wheels
Changing a wheel .......................... 371
Checking ........................................ 351
Cleaning ......................................... 329
Emergency spare wheel ................. 376
Important safety notes .................. 351
Information on driving .................... 351
Interchanging/changing ................ 371
Mounting a new wheel ................... 374
Mounting a wheel .......................... 372
Overview ........................................ 351
Removing a wheel .......................... 374
Snow chains .................................. 353
Storing ........................................... 372
Tightening torque ........................... 375
Wheel size/tire size ....................... 376
Window curtain air bag
Display message ............................ 252
Operation ......................................... 51
Windows
see Side windows
Windshield
Defrosting ...................................... 129
Infrared reflective .......................... 320
Windshield washer fluid
see Windshield washer system
Windshield washer system
Adding washer fluid ....................... 325
Important safety notes .................. 389
Windshield wipers
Problem (malfunction) ................... 121
Rear window wiper ........................ 118
Replacing the wiper blades ............ 118
Rep lacing the wiper blades
( MAGIC VISION CONTROL) ............ 119
Switching on/off ........................... 117
Winter driving
Slippery road surfaces ................... 164
Winter operation
Overview ........................................ 353
Radiator cover ............................... 32224
Index

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.
The u 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 u restraint
system warning lamp: R
does not light up after the ignition is switched
on R
does not go out after a few seconds with the
engine running R
lights up again while the engine is running
G WARNING
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 C and
PASSENGER AIR BAG OFF indicator lamp D are
part of the Occupant Classification System
(OCS). 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.
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. R
Children 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)" ( Y
page 51) and on "Chil-
dren in the vehicle" ( Y
page 59). There you
w ill also find instructions on rearward and
forward-facing child restraint systems on the
front-passenger seat. R
All 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 ( Y
page 51). Be sure to
observe the notes on "Seat
belts“ ( Y
page 45) and "Air bags"
( Y
page 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 vehicleOccupant safety 45
Safety Z

Drivin g safet y systems
Overview of drivin g safet y systemsIn this section , you will fin d information about
th e followin g drivin g safet y systems :R
AB S ( A n ti-loc k B rakin g S ystem)
( Y
page 66)R
BA S ( B rak e A ssist S ystem) ( Y
page 67)R
Active Brak e Assis t ( Y
page 67 )R
ES P ®
( E lectronic S t ability P r ogram)
( Y
page 70)R
EB D ( E lectroni c B rak e forc e D istribution )
( Y
page 72 )R
ADAPTIV E BRAKE ( Y
page 72 )R
Active Brak e Assis t wit h cross-traffic function
( Y
page 72)R
Steerin g Pilo t STEE R CONTROL
( Y
page 75 )
Important safet y notesIf you fail to adapt your drivin g style or if you are
inattentive , th e drivin g safet y systems can nei-
ther reduce th e ris k of an acciden t no r override
th e laws of physics. Driving safet y systems are
merely aids designed to assist driving. You are
responsible fo r maintainin g th e distanc e to th e
vehicle in front, fo r vehicle speed, fo r braking in
goo d time, and fo r stayin g in lane. Always adapt
your drivin g style to suit th e prevailin g road and
weather condition s and maintain a saf e distanc e
from th e vehicle in front. Drive carefully.
The drivin g safet y systems described only wor k
as effectively 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 regardin g tires , recommended minimum
tire tread depths etc. in th e "Wheels and tires "
section ( Y
page 351).
In wintr y drivin g 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 66).
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 277) and dis-
play messages which may be shown in the
instrument cluster ( Y
page 244).
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.66
Driving safety systems
Safety

Off-road ABS An ABS system specifically suited to off-road
terrain is activated automatically once the off-
road program is activated on: R
Vehicles without the Offroad Engineering
package ( Y
page 214)R
Vehicles with the Off-Road Engineering pack-
age ( Y
page 215)
At speeds below 20 mph (30 km/h), the front
wheels lock cyclically during braking. The dig-
ging-in effect achieved in the process reduces
the stopping distance on off-road terrain. This
limits steering capability.
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 66).
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.
Braking X
Keep 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
i Observe the "Important safety notes" sec-
tion ( Y
page 66).
Active Brake Assist consists of a distance warn-
ing function with an autonomous braking func-
tion and situation-dependent braking assis-
tance
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 supports you with situation-
dependent braking assistance.
Active Brake Assist is only available in certain
countries.
Important safety notes In particular, the detection of obstacles can be
impaired if: R
there is dirt on the sensors or anything else
covering the sensors R
there is snow or heavy rain R
there is interference by other radar sources R
there are strong radar reflections, for exam-
ple in parking garages R
a narrow vehicle is traveling in front, e.g. a
motorbike R
a vehicle is traveling in front on a different line R
you are driving a new vehicle or servicing on
the Active Brake Assist system has just been
carried out
Observe the notes in the section on breaking-
in ( Y
page 134).
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.Driving safety systems 67
Safety Z