check engine MERCEDES-BENZ GL-Class 2015 X166 Owner's Manual

Combination switch
.......................... 131
Consumption statistics (on-board
computer) .......................................... 277
Convenience closing feature .............. 97
Convenience opening feature ............ 97
Coolant (engine) Checking the level ........................ .375
Display message ............................ 308
Filling capacity ............................... 453
Important safety notes .................. 452
Temperature (on-board com-
puter) ............................................. 289
Temperature gauge ........................ 274
Warning lamp ................................. 336
Cooling
see Climate control
Copyright ............................................. 31
Cornering light function Display message ............................ 305
Function/notes ............................ .133
Crash-responsive emergency light-
ing ....................................................... 137
Crosswind Assist ................................. 75
Crosswind driving assistance ............ 75
Cruise control Activating ....................................... 204
Activation conditions ..................... 204
Cruise control lever ....................... 204
Deactivating ................................... 205
Display message ............................ 319
Driving system ............................... 203
Function/notes ............................ .203
Important safety notes .................. 204
Storing and maintaining current
speed ............................................. 204
Cup holder
Center console .............................. 351
Important safety notes .................. 350
Rear compartment ......................... 352
Temperature controlled ................. 351
Third row of seats .......................... 352
Customer Assistance Center
(CAC) ..................................................... 29
Customer Relations Department ....... 29 D
Data see Technical data
Daytime running lamps
Display message ............................ 307
Function/notes ............................ .128
Switching on/off (on-board com-
puter) ............................................. 285
Declarations of conformity ................. 28
DEF Adding .......................................... .188
Display message ............................ 311
Filling capacity ............................... 451
Important safety notes .................. 450
Delayed switch-off
Exterior lighting (on-board com-
puter) ............................................. 286
Interior lighting .............................. 287
Diagnostics connection ......................28
Diesel .................................................. 449
Differential lock (display mes-
sage) .................................................. .314
Digital speedometer ......................... 278
DIRECT SELECT lever Automatic transmission ................. 176
Display messages
ASSYST PLUS ................................ 376
Calling up (on-board computer) ..... 292
Driving systems ............................ .312
Engine ............................................ 308
General notes ................................ 292
Hiding (on-board computer) ........... 292
KEYLESS-GO .................................. 326
Lights ............................................. 305
Safety systems .............................. 293
SmartKey ....................................... 325
Tires ............................................... 320
Vehicle .......................................... .323
Distance recorder
see Odometer
see Trip odometer
Distance warning (warning lamp) .... 338
Distance warning function Activating/deactivating ................. 283
Function/notes ................................ 70
Warning lamp ................................. 338 8
Index

PARKTRONIC ................................. 225
Rear view camera .......................... 232
Driving tips
Automatic transmission ................. 179
Brakes ...........................................1 96
Break-in period .............................. 166
DISTRONIC PLUS ........................... 213
Downhill gradient ........................... 196
Drinking and driving ....................... 194
Driving abroad ............................... 128
Driving in winter ............................ .198
Driving on flooded roads ................ 198
Driving on sand .............................. 201
Driving on wet roads ..................... .198
Driving over obstacles ................... 202
Exhaust check ............................... 194
Fuel ................................................ 194
General .......................................... 194
Hydroplaning ................................. 198
Icy road surfaces ........................... 198
Limited braking efficiency on sal-
ted roads ....................................... 196
Off-road driving .............................. 200
Off-road fording ............................ .198
Snow chains .................................. 409
Symmetrical low bea m.................. 128
Tire ruts ......................................... 202
Towing a trailer .............................. 265
Traveling uphill ............................... 202
Wet road surface ........................... 196
DSR (Downhill Speed Regulation)
Display message ............................ 314
Function/note s............................. 258
DVD video
Operating (on-board computer) ..... 281 E
EASY-ENTRY feature Activating/deactivating ................. 287
Function/note s............................. 121
EASY-EXIT feature
Crash-responsive ........................... 122
Function/note s............................. 121
Switching on/of f........................... 287 EBD (electronic brake force distri-
bution)
Display message ............................ 295
Function/note s................................ 75
ECO display
Function/note s............................. 195
On-board computer ....................... 278
Electronic Stability Program
see ESP ®
(Electronic Stability Program)
Emergency
Automatic measures after an acci-
dent ................................................. 60
Emergency release
Driver's door .................................... 90
Vehicle ............................................. 90
Emergency spare wheel
General notes ................................ 440
Important safety notes .................. 440
Removing ....................................... 441
Storage location ............................ 441
Technical data ............................... 443
Emergency Tensioning Devices
Activation ......................................... 58
Emergency unlocking
Tailgate ............................................ 95
Emissions control
Service and warranty information .... 25
Engine
Check Engine warning lamp ........... 335
Display message ............................ 308
ECO start/stop function ................ 171
Engine number ............................... 447
Irregular running ............................ 175
Jump-starting ................................. 397
Starting problems .......................... 175
Starting the engine with the
SmartKey ....................................... 170
Starting with KEYLESS-GO ............. 170
Switching off .................................. 191
Tow-starting (vehicle) ..................... 402
Engine electronics
Problem (malfunction) ................... 175
Engine jump starting
see Jump starting (engine)
Engine oil
Adding ........................................... 374
Additives ........................................ 452 10
Index

Checking the oil leve
l .....................373
Checking the oil level using the
dipstick .......................................... 373
Display message ............................ 310
Filling capacity ............................... 451
Notes about oil grades ................... 451
Notes on oil level/consumption .... 373
Temperature (on-board com-
puter) ............................................. 289
Viscosity ........................................ 452
ESP ®
(Electronic Stability Pro-
gram) AMG menu (on-board computer) ... 289
Characteristics ................................. 74
Deactivating/activating ................... 74
Display message ............................ 293
ETS/4ETS ........................................ 73
Function/notes ................................ 73
General notes .................................. 73
Important safety information ........... 73
Trailer stabilization ........................... 75
Warning lamp ................................. 331
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 73
Exhaust check ................................... 194
Exhaust pipe (cleaning instruc-
tions) ................................................. .382
Exterior lighting see Lights
Exterior mirrors
Adjusting ....................................... 122
Dipping (automatic) ....................... 123
Folding in/out (automatically) ....... 123
Folding in/out (electrically) ........... 123
Folding in when locking (on-board computer) ...................................... 288
Out of position (troubleshooting) ... 123
Setting ........................................... 123
Storing settings (memory func-
tion) ............................................... 124
Storing the parking position .......... 124
Eyeglasses compartment ................. 344 F
Filler cap see Fuel filler flap
Flat tire
MOExtended tire s.......................... 389
Preparing the vehicle ..................... 389
TIREFIT kit ...................................... 390
see Emergency spare wheel
Floormats ........................................... 369
Folding the rear bench seat for-
wards/back ....................................... 346
Fording Off-road ......................................... 198
On flooded roads ........................... 198
Fuel
Additives ........................................ 449
Consumption statistics .................. 277
Displaying the current consump-
tion ................................................ 278
Displaying the range ...................... 278
Driving tips .................................... 194
Fuel gaug e....................................... 35
Grade (gasoline )............................ 448
Important safety notes .................. 448
Low outside temperature s............. 450
Premium-grade unleaded gaso-
line ................................................. 448
Problem (malfunction) ................... 188
Quality (diesel )............................... 449
Refueling ........................................ 185
Tank content/reserve fue l............. 448
Fuel filler flap
Opening ......................................... 187
Fuel filter (display message) ............ 311
Fuel level Calling up the range (on-board
computer) ...................................... 278
Fuel tank
Capacity ........................................ 448
Problem (malfunction) ................... 188
Fuses
Allocation chart ............................. 402
Before changing ............................. 402
Dashboard fuse box ....................... 403
Fuse box in the engine compart-
ment .............................................. 403 Index
11

Operation ......................................... 54
System self-test ...............................56
Occupant safety
Automatic measures after an acci-
dent .................................................60
Children in the vehicle .................... .61
Important safety notes .................... 45
Pets in the vehicle ........................... 67
PRE-SAFE ®
(anticipatory occu-
pant protection) ............................... 60
OCS
Conditions ....................................... 53
Faults ............................................... 57
Operation .........................................54
System self-test ............................... 56
Odometer ........................................... 277
Off-road driving Approach/departure angle ............ 457
Checklist after driving off-road ...... 201
Checklist before driving off-road .... 200
Fording depth ................................ 456
General information ....................... 200
Important safety notes .................. 199
Maximum gradient climbing abil-
ity .................................................. 457
Traveling uphill ............................... 202
Off-road programs (vehicles with
the ON&OFFROAD package)
Displays in the COMAND display ... 263
Function/note s............................. 259
Off-road program 1 ........................ 260
Off-road program 2 ........................ 260
Off-road system
4MATIC .......................................... 257
DSR ............................................... 258
LOW RANGE off-road gear ............. 261
Off-road 4ETS .................................. 73
Off-road ABS .................................... 69
Off-road ESP ®
.................................. 75
Off-road programs (vehicles with
the ON&OFFROAD package) .......... 259
Oil
see Engine oil
On and Offroad menu (on-board
computer) .......................................... 289 On-board computer
AMG menu ..................................... 289
Assistance menu ........................... 283
Audio menu ................................... 280
Convenience submenu .................. 287
Displaying a service message ........ 377
Display messages .......................... 292
DISTRONIC PLUS ........................... 213
Factory settings submenu ............. 289
Important safety notes .................. 274
Instrument cluster submenu .......... 285
Lighting submenu .......................... 285
Menu overview .............................. 277
Message memory .......................... 292
Navigation menu ............................ 279
On and Offroad menu .................... 289
Operation ....................................... 275
RACETIMER ................................... 290
Service menu ................................. 284
Settings menu ............................... 285
Standard display ............................ 277
Telephone menu ............................ 281
Trip menu ...................................... 277
Vehicle submenu ........................... 287
Video DVD operation ..................... 281
On-road programs
AUTO program ............................... 255
Function/note s............................. 255
Snow program ............................... 256
SPORT program ............................. 256
Trailer program .............................. 257
Opening and closing the side trim
panels ................................................. 139
Operating safety Declaration of conformity ................ 28
Important safety notes .................... 27
Operating system
see On-board computer
Operator's Manual
Vehicle equipment ........................... 25
Outside temperature display ........... 275
Overhead control panel ...................... 41
Override feature Rear side window s........................... 67 Index
15

Correct driver's seat position ........ 106
Entry position (3rd row of seats) .... 113
Exit position (3rd row of seats) ...... 114
Folding down/up (third row of
seats) ............................................ .111
Folding the 2nd row of seats
forward electrically ........................ 115
Folding the 2nd row of seats
forward manually ........................... 112
Folding the rear bench seat for-
wards/back ................................... 346
Important safety notes .................. 107
Overview ........................................ 107
Seat heating problem .................... 118
Seat ventilation problem ................ 119
Storing settings (memory func-
tion) ............................................... 124
Switching seat heating on/off ....... 116
Switching seat ventilation on/off .. 118
Selector lever
Cleaning ......................................... 384
Sensors (cleaning instructions) ....... 381
Service menu (on-board com-
puter) ................................................. .284
Service products Brake fluid ..................................... 452
Coolant (engine) ............................ 452
DEF special additives ..................... 450
Engine oil ....................................... 451
Fuel ................................................ 448
Important safety notes .................. 447
Refrigerant (air-conditioning sys-
tem) ............................................... 454
Washer fluid ................................... 453
Settings
Factory (on-board computer) ......... 289
On-board computer ....................... 285
Setting the air distribution ...............158
Setting the airflow ............................ 158
SETUP (on-board computer) ............. 289
Side impact air bag .............................52
Side marker lamp (display mes-
sage) ................................................... 307
Side windows Cleaning ......................................... 381
Convenience closing feature ............ 97
Convenience opening feature ..........97 Hinged side window
s....................... 96
Important safety information ........... 95
Opening/closing .............................. 96
Overview .......................................... 95
Problem (malfunction) ..................... 99
Resetting ......................................... 98
Sliding sunroof
Important safety notes .................... 99
Opening/closing ............................ 100
Problem (malfunction) ................... 103
Resetting ....................................... 100
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery ....................... 85
Changing the programming ............. 83
Checking the battery ....................... 85
Convenience closing feature ............ 98
Convenience opening feature .......... 97
Display message ............................ 325
Door central locking/unlocking ....... 82
Important safety notes .................... 82
Loss ................................................. 87
Mechanical key ................................ 84
Overview .......................................... 82
Positions (ignition lock) ................. 167
Problem (malfunction) ..................... 87
Starting the engine ........................ 170
Snow chains
Information .................................... 409
Snow drive program ....................... 256
Sockets
Center console .............................. 355
General notes ................................ 354
Luggage compartment ................... 355
Rear compartment ......................... 355
Specialist workshop ............................ 29
Special seat belt retractor .................. 61
Speed, controlling see Cruise control
Speedometer
Digital ............................................ 278
In the Instrument cluster ................. 35
Segments ...................................... 275
Selecting the unit of measure-
ment .............................................. 285
see Instrument cluster 18
Index

Telephone
Accepting a call ............................. 282
Display message ............................ 325
Menu (on-board computer) ............ 281
Number from the phone book ........ 282
Redialing ........................................ 282
Rejecting/ending a call ................. 282
Temperature
Coolant .......................................... 274
Coolant (on-board computer) ......... 289
Engine oil (on-board computer) ...... 289
Outside temperature ...................... 275
Setting (climate control) ................ 157
Theft deterrent systems
ATA (Anti-Theft Alarm system )......... 78
Immobilizer ...................................... 78
Through-loading ................................ 345
Time see separate operating instructions
Timing (RACETIMER) ......................... 290
TIREFIT kit .......................................... 390
Tire pressure Calling up (on-board computer) ..... 414
Checking manually ........................ 413
Display message ............................ 320
Important safety notes .................. 414
Maximum ....................................... 412
Notes ............................................. 411
Not reached (TIREFIT) .................... 392
Reached (TIREFIT) .......................... 392
Recommended ............................... 410
Tire pressure loss warning sys-
tem
General notes ................................ 413
Important safety notes .................. 413
Restarting ...................................... 414
Tire pressure monitor
Checking the tire pressure elec-
tronically ........................................ 416
Function/note s............................. 414
General notes ................................ 414
Important safety notes .................. 415
Radio type approval for the tire
pressure monitor ........................... 417
Restarting ...................................... 417
Warning lamp ................................. 339
Warning message .......................... 416 Tires
Aspect ratio (definition) ................. 428
Average weight of the vehicle
occupants (definition) .................... 427
Bar (definition) ............................... 426
Changing a whee l.......................... 429
Characteristics .............................. 426
Checking ........................................ 407
Curb weight (definition) ................. 428
Definition of terms ......................... 426
Direction of rotation ...................... 429
Display message ............................ 320
Distribution of the vehicle occu-
pants (definition) ............................ 429
DOT, Tire Identification Number
(TIN) ............................................... 426
DOT (Department of Transporta-
tion) (definition) ............................. 427
GAWR (Gross Axle Weight Rating)
(definition) ..................................... 427
GTW (Gross Trailer Weight) (defi-
nition) ............................................ 427
GVW (Gross Vehicle Weight) (def-
inition) ........................................... 427
GVWR (Gross Vehicle Weight Rat-
ing) (definition) .............................. 427
Important safety notes .................. 406
Increased vehicle weight due to
optional equipment (definition) ...... 427
Kilopascal (kPa) (definition) ........... 427
Labeling (overview) ........................ 423
Load bearing index (definition) ...... 428
Load index ..................................... 425
Load index (definition) ................... 427
M+S tire s....................................... 408
Maximum loaded vehicle weight
(definition) ..................................... 427
Maximum load on a tire (defini-
tion) ............................................... 428
Maximum permissible tire pres-
sure (definition) ............................. 428
Maximum tire load ......................... 425
Maximum tire load (definition) ....... 428
MOExtended tire s.......................... 408
Optional equipment weight (defi-
nition) ............................................ 428
PSI (pounds per square inch) (def-
inition) ........................................... 428 20
Index

Turn signals
Display message ............................ 305
Switching on/off ........................... 131
TWR (Tongue Weight Rating) (defi-
nition) ................................................. 428
Type identification plate see Vehicle identification plate U
Unlocking Emergency unlocking ....................... 90
From inside the vehicle (central
unlocking button) ............................. 89 V
Vanity mirror (in the sun visor) ........ 352
Vehicle Correct use ...................................... 29
Data acquisition ............................... 30
Display message ............................ 323
Equipment ....................................... 25
Individual settings .......................... 285
Limited Warranty ............................. 30
Loading .......................................... 418
Locking (in an emergency) ............... 90
Locking (SmartKey) .......................... 82
Lowering ........................................ 434
Maintenance .................................... 26
Parking for a long period ................ 193
Pulling away ................................... 170
Raising ........................................... 431
Reporting problems ......................... 29
Securing from rolling away ............ 430
Towing away .................................. 399
Transporting .................................. 401
Unlocking (in an emergency) ........... 90
Unlocking (SmartKey) ...................... 82
Vehicle data ................................... 455
Vehicle battery
see Battery (vehicle)
Vehicle data ....................................... 455
Vehicle data (off-road driving) Approach/departure angle ............ 457
Fording depth ................................ 456
Maximum gradient climbing abil-
ity .................................................. 457 Vehicle dimensions
........................... 455
Vehicle emergency locking ................ 90
Vehicle identification number see VIN
Vehicle identification plate .............. 446
Vehicle level AMG adaptive sport suspension
system ........................................... 224
Vehicle level (display message) ....... 312
Vehicle maintenance see ASSYST PLUS
Vehicle tool kit .................................. 388
Video Operating the DVD ........................ .281
VIN ...................................................... 446 W
Warning and indicator lamps ABS ................................................ 329
Brakes .......................................... .328
Check Engine ................................. 335
Coolant .......................................... 336
Distance warning ........................... 338
DISTRONIC PLUS ........................... 338
ESP ®
.............................................. 331
ESP ®
OFF ....................................... 332
Overview .......................................... 36
PASSENGER AIR BAG OFF .............. .45
Reserve fuel .................................. .335
Restraint system ............................ 334
Seat belt ........................................ 327
Tire pressure monitor .................... 339
Warranty .............................................. 25
Washer fluid Display message ............................ 325
Wheel and tire combination
see Tires
Wheel bolt tightening torque ........... 434
Wheel chock ...................................... 430
Wheels Changing a wheel .......................... 429
Checking ........................................ 407
Cleaning ......................................... 380
Cleaning (warning) ......................... 430
Emergency spare wheel ................. 440
Important safety notes .................. 406 22
Index

Warning and indicator lamps
Function Page
0043
0058
Low-beam head-
lamps 129
0044
0060
Parking lamps 130
0087
00E5
ESP® 331
0085
0057
High-beam head-
lamps 132
0083
Electric parking brake (red) 334
0049
(USA only) 0024
(Canada only) 0084
0024
Electric parking brake
(yellow) 334
006B
00BA
Distance warning 338
006C
003E003D
Turn signals 131
006D
0077
Tire pressure monitor 339 Function Page
006E
0075
Restraint system 44
006F
00E9
Seat belt 327
0070
0028
Diesel engine: pre-
glow 170
0071
00AC
Coolant 336
0072
005E
Rear fog lamp 130
0073
00B9
Check Engine 335
0074
00B6
Reserve fuel 335
0075
00BB
ESP®
OFF 331
0076
0025
ABS 329
0077
Brakes 328
0027
(USA only) 004D
(Canada only) 36
Instrument clusterAt a glance

See “Children in the vehicle” for information
on children traveling with you as well as vehi-
cle restraint systems (Y page 61).Important safety notes
G
WARNING
Modifications to the restraint system may
cause it to no longer work as intended. The
restraint system may then not perform its
intended protective function and may fail in an accident or trigger unexpectedly, for example.
This poses an increased risk of injury or even fatal injury.
Never modify parts of the restraint system.
Never tamper with the wiring, the electronic
components or their software.
If it is necessary to modify an air bag system to
accommodate a person with disabilities, con- tact an authorized Mercedes-Benz Center for
details. USA only: for further information con- tact our Customer Assistance Center at
1-800-FOR-MERCedes (1‑800‑ 367‑6372). 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 run-
ning. Therefore, malfunctions can be detec-
ted in good time.
The 0075 restraint system warning lamp in
the instrument cluster lights up when the igni- tion is switched on. It goes out no later than afew seconds after the engine is started. The
components of the restraint system are in
operational readiness.
A malfunction has occurred if the 0075
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 restraint system is malfunctioning, restraint system components may be triggered unin-
tentionally or might not be triggered at all in
the event of an accident with a high rate of
vehicle deceleration. This can affect the Emer- gency Tensioning Device or air bag, for exam-
ple. 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 OFF indicator
lamp
PASSENGER AIR BAG OFF indicator lamp
0043
is part of the Occupant Classification System (OCS).
The PASSENGER AIR BAG OFF indicator lamp
informs you about the status of the front-
passenger front air bag.
If the PASSENGER AIR BAG OFF indicator
lamp:
R is lit : the front-passenger front air bag is
deactivated. They will then not be deployed
in the event of an accident.
R does not light up: the front-passenger
front air bag is enabled. If, in the event of an
accident, all deployment criteria are met,
the front-passenger front air bag is
deployed. Occupant safety
45Safety Z

Driving safety systems
Overview of driving safety systems
In this section, you will find information about the following driving safety systems:
R ABS (Anti-lock BrakingSystem)
(Y page 68)
R BAS (Brake Assist System) (Y page 69)
R BAS PLUS (Brake Assist System Plus)
(Y page 69)
R COLLISION PREVENTION ASSIST (distance
warning function and adaptive Brake
Assist) (Y page 70)
R ESP ®
(E lectronic StabilityProgram)
(Y page 73)
R EBD (Electronic Brake forceDistribution)
(Y page 75)
R ADAPTIVE BRAKE (Y page 76)
R PRE-SAFE ®
Brake (Y page 76)
R STEER CONTROL (Y page 77)Important safety notes
If you fail to adapt your driving style or
become distracted, the driving safety sys-
tems can neither reduce the risk of accident
nor override the laws of physics. Driving
safety systems are merely aids designed to
assist driving. You are responsible for the dis-
tance to the vehicle in front, for vehicle speed and for braking in good time. Always adapt
your driving style to suit the prevailing road
and weather conditions and maintain a safe
distance from the vehicle in front. Drive care-
fully.
i The driving safety systems described only
work as effectively as possible when there
is adequate contact between the tires and
the road surface. Please pay special atten- tion to the notes on tires, recommended
minimum tire tread depths, etc.
(Y page 406).
In wintry driving conditions, always use
winter tires (M+S tires) and if necessary, snow chains. Only in this way will the driv-
ing 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 vehi- cle when braking.
The 0025 ABS warning lamp in the instrument
cluster lights up when the ignition is switched on. It goes out when the engine is running.
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 68). 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 328) and
display messages which may be shown in the
instrument cluster (Y page 293).
ABS works from a speed of about 5 mph
(8 km/ h), regardless of road-surface condi-
tions. ABS works on slippery surfaces, even
when you only brake gently. 68
Driving safety systemsSafety