lights MERCEDES-BENZ GL-Class 2015 X166 Owner's Manual

Index
....................................................... 4Introduction
......................................... 24 At a glance
........................................... 33 Safety
................................................... 43 Opening and closing
...........................81 Seats, steering wheel and mirrors
..105 Lights and windshield wipers
..........127 Climate control
................................. 145 Driving and parking
..........................165 On-board computer and displays
....273 Stowage and features
......................341 Maintenance and care
......................371 Breakdown assistance
.....................387 Wheels and tires
............................... 405 Technical data
................................... 445 Contents
3

Ambient lighting
Setting the brightness (on-board
computer) ...................................... 286
Setting the color (on-board com-
puter) ............................................ .286
AMG adaptive sport suspension
system ................................................ 223
AMG menu (on-board computer) ..... 289
Anti-lock braking system see ABS (Anti-lock Braking System)
Anti-Theft Alarm system
see ATA (Anti-Theft Alarm system)
Approach/departure angle .............. 202
Ashtray ............................................... 353
Assistance display (on-board com-
puter) ................................................. .283
Assistance menu (on-board com-
puter) ................................................. .283
ASSYST PLUS Displaying a service message ....... .377
Hiding a service message .............. 377
Notes ............................................. 376
Resetting the service interval dis-
play ................................................ 377
Service message ............................ 376
Special service requirements ......... 377
ATA (Anti-Theft Alarm system)
Activating/deactivating ................... 78
Function .......................................... .78
Switching off the alarm .................... 78
ATTENTION ASSIST
Activating/deactivating ................. 284
Display message ............................ 312
Function/note s............................. 241
Audio menu (on-board computer) .... 280
Audio system see separate operating instructions
Authorized Mercedes-Benz Center
see Qualified specialist workshop
Authorized workshop
see Qualified specialist workshop
AUTO lights
Display message ............................ 308
see Lights
Automatic car wash (care) ............... 378
Automatic engine start (ECO start/
stop function) .................................... 172 Automatic engine switch-off (ECO
start/stop function) .......................... 172
Automatic headlamp mode .............. 128
Automatic transmission Accelerator pedal position ............. 179
Automatic drive program ............... 181
Changing gear ............................... 179
DIRECT SELECT lever ..................... 176
Display message ............................ 323
Drive program display .................... 176
Driving tips .................................... 179
Emergency running mode .............. 185
Engaging drive position .................. 178
Engaging neutral ............................ 177
Engaging park position automati-
cally ............................................... 177
Engaging reverse gear ................... 177
Engaging the park position ............ 176
Kickdown ....................................... 179
Manual drive progra m.................... 181
Manual drive program (AMG vehi-
cles) ............................................... 182
Manual drive program (vehicles
with the ON&OFFROAD package) .. 182
Overview ........................................ 176
Problem (malfunction) ................... 185
Program selector button ................ 180
Pulling away ................................... 170
Starting the engine ........................ 170
Steering wheel paddle shifters ...... 180
Trailer towing ................................. 179
Transmission position display ........ 176
Transmission positions .................. 178
Automatic transmission emer-
gency mode ....................................... 185
Axle load, permissible (trailer tow-
ing) ...................................................... 459 B
Bag hook ............................................ 348
Ball coupling Installing ........................................ 266
Removing ....................................... 270
Storing ........................................... 270
BAS (Brake Assist System) ................. 69
BAS PLUS (Brake Assist System
PLUS) .................................................... 69 Index
5

Battery (SmartKey)
Checking .......................................... 85
Important safety notes .................... 85
Replacing ......................................... 85
Battery (vehicle)
Charging ........................................ 395
Display message ............................ 309
Important safety notes .................. 393
Jump starting ................................. 397
Overview ........................................ 393
Belt
see Seat belts
Blind Spot Assist
Activating/deactivating ................. 284
Display message ............................ 316
Notes/function .............................. 245
Trailer towing ................................. 247
see Active Blind Spot Assist
BlueTEC
Adding DEF .................................... 188
BlueTEC (DEF) .................................... 450
Brake Assist see BAS (Brake Assist System)
Brake fluid
Display message ............................ 299
Notes ............................................. 452
Brake lamps
Changing bulb s.............................. 140
Display message ............................ 306
Brakes
ABS .................................................. 68
Adaptive Brake Assist ...................... 72
BAS .................................................. 69
BAS PLUS ........................................ 69
Brake fluid (notes) ......................... 452
Display message ............................ 293
High-performance brake system .... 197
Important safety notes .................. 196
Maintenance .................................. 197
Parking brake ................................ 192
Riding tips ...................................... 196
Warning lamp ................................. 328
Breakdown
see Flat tire
see Towing away
Brightness control (instrument
cluster lighting) ................................... 35 Bulbs
see Replacing bulbs C
California Important notice for retail cus-
tomers and lessees .......................... 26
Calling up a malfunction
see Display messages
Car
see Vehicle
Care
360° camera ................................. 382
Carpets .......................................... 385
Car wash ........................................ 378
Displa y........................................... 383
Exhaust pipe .................................. 382
Exterior lights ................................ 381
Gear or selector lever .................... 384
Interior ........................................... 383
Matte finish ................................... 380
Night View Assist Plus ................... 383
Notes ............................................. 377
Paint .............................................. 379
Plastic trim .................................... 384
Power washe r................................ 379
Rear view camera .......................... 382
Roof lining ...................................... 385
Seat belt ........................................ 385
Seat cover ..................................... 384
Sensors ......................................... 381
Steering wheel ............................... 384
Trim pieces .................................... 384
Washing by hand ........................... 379
Wheels ........................................... 380
Windows ........................................ 381
Wiper blades .................................. 381
Wooden trim .................................. 384
Cargo compartment cover
Notes/how to use ......................... 348
Cargo compartment enlargement
Important safety notes .................. 346
Cargo compartment floor
Opening/closing ............................ 349
Stowage well (under )..................... 349
Cargo tie down rings ......................... 3476
Index

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

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

K
KEYLESS-GO Convenience closing feature ............ 98
Display message ............................ 326
Locking ............................................ 83
Removing the Start/Stop butto n... 169
Start/Stop button .......................... 167
Starting the engine ........................ 170
Unlocking ......................................... 83
Key positions
KEYLESS-GO .................................. 167
SmartKey ....................................... 167
Kickdown
Driving tip s.................................... 179
Manual drive progra m.................... 183
Knee bag .............................................. 52 L
Lamps see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating ................. 284
Display message ............................ 315
Function/information .................... 247
see Active Lane Keeping Assist
Lap time (RACETIMER) ...................... 290
LATCH-type (ISOFIX) child seat
anchors ................................................ 63
Level control (display message) ...... 312
Level control (vehicles with AIR-
MATIC package)
Basic settings ................................ 222
Function/note s............................. 221
Important safety notes .................. 221
Level control (vehicles with the
ON&OFFROAD package)
Basic settings ................................ 215
Function/note s............................. 214
Important safety notes .................. 214
License plate lamp (display mes-
sage) ................................................... 306
Light function, active Display message ............................ 307
Lights
Activating/deactivating the inte-
rior lighting delayed switch-off ....... 287 Active light function ....................... 133
Adaptive Highbeam Assist ............. 134
Automatic headlamp mode ............ 128
Cornering light function ................. 133
Driving abroad ............................... 128
Hazard warning lamps ................... 132
High beam flasher .......................... 132
High-beam headlamp s................... 132
Light switch ................................... 128
Low-beam headlamp s.................... 129
Parking lamps ................................ 130
Rear fog lamp ................................ 130
Setting the brightness of the
ambient lighting (on-board com-
puter) ............................................. 286
Setting the color of the ambient
lighting (on-board computer) ......... 286
Standing lamps .............................. 131
Switching the daytime running
lamps on/off (on-board com-
puter) ............................................. 285
Switching the exterior lighting
delayed switch-off on/off (on-
board computer) ............................ 286
Switching the surround lighting
on/off (on-board computer) .......... 286
Turn signals ................................... 131
see Interior lighting
see Replacing bulbs
Light sensor (display message) ....... 308
Loading guidelines ............................ 342
Locking see Central locking
Locking (doors)
Automatic ........................................ 90
Emergency locking ........................... 90
From inside (central locking but-
ton) .................................................. 89
Locking centrally
see Central locking
Locking verification signal (on-
board computer) ............................... 287
Low-beam headlamps Changing bulb s.............................. 138
Display message ............................ 305 Index
13

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

continuously or flash. In addition, there may
be a warning tone.
Regardless of whether the driver's and front- passenger seat belts have already been fas-
tened, the 0076seat belt warning lamp lights
up for six seconds each time the engine is
started. If, after six seconds, the driver or
front-passenger seat belt has not been fas-
tened and the doors are closed, the 0076seat
belt warning lamp lights up. As soon as the
driver's and front-passenger seat belts are
fastened or a front door is opened again, the
0076 seat belt warning lamp goes out.
If the driver's seat belt is not fastened after
the engine is started, an additional warning
tone will sound. This warning tone stops after six seconds or when the driver's seat belt is
fastened.
If the vehicle's speed exceeds 15 mph
(25 km/h) once and the driver's and front-
passenger seat belts are not fastened, a
warning tone sounds. A warning tone also
sounds with increasing intensity for
60 seconds or until the driver or front
passenger have fastened their seat belts.
If the driver or front passenger unfasten their
seat belts during the journey, the seat belt
warning is activated again.
i For more information on the
0076seat
belt warning lamp, see "Warning and indi-
cator lamps in the instrument cluster, seat
belts" (Y page 327). Air bags
Introduction The installation point of an air bag can be rec-
ognized by the AIR BAG symbol.
An air bag complements the correctly fas-
tened seat belt. It is no substitute for the seat
belt. The air bag provides additional protec-
tion in applicable accident situations.
Not all air bags are deployed in an accident.
The different air bag systems function inde-
pendently from one another (Y page 58).However, no system available today can com-
pletely eliminate injuries and fatalities.
It is also not possible to rule out a risk of injury
caused by an air bag due to the high speed at which the air bag must be deployed.
Important safety notes G
WARNING
If you do not sit in the correct seat position,
the air bag cannot protect as intended and
could even cause additional injury when
deployed. This poses an increased risk of
injury or even fatal injury.
To avoid hazardous situations, always make
sure that all of the vehicle's occupants:
R have fastened their seat belts correctly,
including pregnant women
R are sitting correctly and maintain the great-
est possible distance to the air bags
R follow the following instructions
Always make sure that there are no objects
between the air bag and the vehicle's occu-
pants.
R Adjust the seats properly before beginning
your journey. Always make sure that the
seat is in an almost upright position. The
center of the head restraint must support
the head at about eye level.
R Move the driver's and front-passenger
seats as far back as possible. The driver's
seat position must allow the vehicle to be
driven safely.
R Only hold the steering wheel on the out-
side. This allows the air bag to be fully
deployed.
R Always lean against the backrest while driv-
ing. Do not lean forwards or lean against
the door or side window. You may other-
wise be in the deployment area of the air
bags.
R Always keep your feet in the footwell in
front of the seat. Do not put your feet on the
dashboard, for example. Your feet may oth- 50
Occupant safetySafety

G
WARNING
If you secure a child in a forward-facing child
restraint system on the front-passenger seat
and you position the front-passenger seat too close to the dashboard, the child could, in the
event of an accident:
R come into contact with the vehicle's inte-
rior if the PASSENGER AIR BAG OFF indi-
cator lamp is lit, for example
R be struck by the air bag if the PASSENGER
AIR BAG OFF indicator lamp is off
This poses an increased risk of injury or even
fatal injury.
Move the front-passenger seat as far back as possible. Always make sure that the shoulder
belt strap is correctly routed from the vehicle
belt sash guide to the shoulder belt guide on
the child restraint system. The shoulder belt
strap must be routed forwards and down-
wards from the vehicle belt sash guide. If nec- essary, adjust the vehicle belt sash guide and
the front-passenger seat accordingly. Always
observe the child restraint system manufac-
turer's installation instructions.
If OCS determines that: R the front-passenger seat is unoccupied, the
PASSENGER AIR BAG OFF indicator lamp
lights up after the system self-test and
remains lit. This indicates that the front-
passenger front air bag is deactivated.
R the front-passenger seat is occupied by a
child of up to 12 months old, in a standard
child restraint system, the PASSENGER AIR BAG OFF indicator lamp lights up after the
system self-test and remains lit. This indi-
cates that the front-passenger front air bag
is deactivated.
But in the case of a 12-month-old child, in a standard child restraint system, the
PASSENGER AIR BAG OFF indicator lamp
can go out after the system self-test. This
indicates that the front-passenger front air
bag is activated. The result of the classifi-
cation is dependent on, among other fac-
tors, the child restraint system and the child's stature. It is recommended that you
install the restraint system on a suitable
rear seat.
R the front-passenger seat is occupied by a
person of smaller stature (e.g. a teenager
or small adult), the PASSENGER AIR BAG
OFF indicator lamp lights up and remains lit after the system self-test depending on the result of the classification or, alternatively,
goes out.
- if the PASSENGER AIR BAG OFF indicator
lamp is off, move the front-passenger
seat as far back as possible. Alterna-
tively, a person of small stature can sit on
a rear seat.
- if the PASSENGER AIR BAG OFF indicator
lamp is lit, a person of smaller stature
should not use the front-passenger seat.
R the front-passenger seat is occupied by an
adult or a person of a stature correspond-
ing to that of an adult, the PASSENGER AIR BAG OFF indicator lamp goes out after the
system self-test. This indicates that the
front-passenger front air bag is activated.
If children are traveling in the vehicle, be sure
to observe the notes on "Children in the vehi- cle" (Y page 61).
When OCS is malfunctioning, the red 0075
restraint system warning lamp in the instru-
ment cluster and the PASSENGER AIR BAG
OFF indicator lamp light up simultaneously.
The front-passenger front air bag is deactiva-
ted in this case and does not deploy during an accident. Have the system checked by quali-
fied technicians as soon as possible. Consult
an authorized Mercedes-Benz Center. The
front-passenger seat should only be repaired at an authorized Mercedes-Benz Center.
If the front-passenger seat, the seat cover orthe seat cushion is damaged, have the nec-
essary repair work carried out at an author-
ized Mercedes-Benz Center.
For safety reasons, Mercedes-Benz recom-
mends that you only use seat accessories
that have been approved by Mercedes-Benz. Occupant safety
55Safety Z

Problems with the Occupant Classification System (OCS)
Be sure to observe the notes on "System self-test" (Y
page 56).Problem
Possible causes/consequences and
0050
0050Solutions The PASSENGER AIR
BAG OFF indicator
lamp lights up and
remains lit, even
though the front-
passenger seat is occu-
pied by an adult or a
person of a stature cor-
responding to that of an
adult. The classification of the person on the front-passenger seat is
incorrect.
X Make sure the conditions for a correct classification of the per-
son on the front-passenger seat are met (Y page 53).
X If the PASSENGER AIR BAG OFF indicator lamp remains lit, the
front-passenger seat may not be used.
X Have OCS checked as soon as possible at an authorized
Mercedes-Benz Center. The PASSENGER AIR
BAG OFF indicator
lamp does not light up
and/or does not stay
on.
The front-passenger
seat is:
R unoccupied
R occupied by the
weight of a child up
to 12 months old in a
child restraint sys-
tem OCS is malfunctioning.
X Make sure there is nothing between the seat cushion and the
child seat.
X Make sure that the entire base of the child restraint system rests
on the seat cushion of the front-passenger seat. The backrest of
the forwards-facing child restraint system must, as far as pos-
sible, be resting on the backrest of front-passenger seat. If nec- essary, adjust the position of the front-passenger seat.
X When installing the child restraint system, make sure that the
seat belt is tight. Do not pull the seat belt tight with the front-
passenger seat adjustment. This could result in the seat belt and the child restraint system being pulled too tightly.
X Check the installation of the child restraint system.
Make sure that the head restraint does not apply a load to the
child restraint system. If necessary, adjust the head restraint
accordingly.
X Make sure that no objects are applying additional weight onto
the seat.
X If the PASSENGER AIR BAG OFF indicator lamp remains off, do
not install a child restraint system on the front-passenger seat. It is recommended that you install the restraint system on a
suitable rear seat.
X Have OCS checked as soon as possible at an authorized
Mercedes-Benz Center. Occupant safety
57Safety Z