check engine MERCEDES-BENZ GL-Class 2014 X166 Owner's Manual

AMG adaptive sport suspension
system
................................................ 221
AMG menu (on-board computer) .....287
Anti-lock braking system see ABS (Anti-lock Braking System)
Anti-Theft Alarm system
see ATA (Anti-Theft Alarm system)
Approach/departure angle ..............200
Ashtray ............................................... 351
Assistance display (on-board
computer) .......................................... 280
Assistance menu (on-board
computer) .......................................... 280
ASSYST PLUS Displaying a service message ........375
Hiding a service message ..............375
Notes ............................................. 374
Resetting the service interval
displa y........................................... 375
Service message ............................ 374
Special service requirements ......... 375
ATA (Anti-Theft Alarm system)
Activating/deactivating ...................77
Function .......................................... .77
Switching off the alarm ....................77
ATTENTION ASSIST
Activating/deactivating .................281
Display message ............................ 309
Function/notes ............................. 239
Audio menu (on-board computer) ....278
Audio system see separate operating instructions
Authorized Mercedes-Benz Center
see Qualified specialist workshop
Authorized Workshop
see Qualified specialist workshop
AUTO lights
Display message ............................ 306
see Lights
Automatic headlamp mode ..............128
Automatic transmission Automatic drive program ...............178
Changing gea r............................... 176
DIRECT SELECT lever .....................173
Display message ............................ 320
Drive program displa y.................... 173
Driving tips .................................... 176Emergency running mode
..............182
Engaging drive position .................. 175
Engaging neutral ............................ 174
Engaging park position
automatically ................................. 174
Engaging reverse gear ...................174
Engaging the park position ............173
Kickdown ....................................... 176
Manual drive program ....................178
Manual drive program (AMG
vehicles) ........................................ 179
Manual drive program (vehicles
with the ON&OFFROAD package) ..179
Overview ........................................ 173
Problem (malfunction) ...................182
Program selector button ................177
Pulling away ................................... 170
Starting the engine ........................169
Steering wheel paddle shifters ......177
Trailer towing ................................. 176
Transmission position displa y........ 173
Transmission positions ..................175
Automatic transmission
emergency mode ............................... 182
Axle load, permissible (trailer
towing) ............................................... 457 B
Bag hook ............................................ 346
Ball coupling Installing ........................................ 265
Removing ....................................... 269
Storing ........................................... 269
BAS (Brake Assist System) .................68
BAS PLUS (Brake Assist System
PLUS) .................................................... 68
Battery (SmartKey) Checking .......................................... 83
Important safety notes ....................83
Replacing ......................................... 83
Battery (vehicle)
Charging ........................................ 394
Display message ............................ 307
Important safety notes ..................391
Jump starting ................................. 395
Overview ........................................ 391 Index
5

Central locking
Automatic locking (on-board
computer) ...................................... 284
Locking/unlocking (SmartKey) ........80
Changing bulbs
Brake lamps ................................... 140
High-beam headlamps ...................139
Low-beam headlamps ....................138
Child-proof locks
Important safety notes ....................65
Rear doors ....................................... 66
Children
In the vehicle ................................... 60
Restraint systems ............................ 60
Special seat belt retractor ...............63
Child seat
LATCH-type (ISOFIX) child seat
anchors ............................................ 63
Top Tether ....................................... 64
Cigarette lighter ................................ 352
Cleaning Mirror turn signal ........................... 380
Trailer tow hitch ............................. 381
Climate control
3-zone automatic climate control
with additional rear-compartment
climate control ............................... 152
Automatic climate control (3-zone) 150
Controlling automatically ...............156
Cooling with air dehumidification ..155
Defrosting the windows .................160
Defrosting the windshield ..............159
Dual-zone automatic climate
control ........................................... 147
Important safety notes ..................146
Indicator lamp ................................ 156
Information about using 3-zone
automatic climate control ..............154
Maximum cooling .......................... 159
Notes on using dual-zone
automatic climate control ..............149
Overview of systems ......................146
Problems with cooling with air
dehumidification ............................ 156
Problem with the rear window
defroster ........................................ 161
Rear control panel .........................150Rear control panel (3-zone
automatic climate control with
additional rear-compartment
climate control)
............................. 152
Refrigerant ..................................... 452
Refrigerant filling capacity .............452
Setting the air distribution .............158
Setting the airflow .........................158
Setting the air vents ......................162
Setting the climate mode (AIR
FLOW) ............................................ 157
Setting the temperature ................157
Switching air-recirculation mode
on/off ............................................ 161
Switching on/off ........................... 154
Switching residual heat on/off ......161
Switching the rear window
defroster on/off ............................ 160
Switching the ZONE function on/
off .................................................. 159
Coat hooks ......................................... 347
Cockpit Overview .......................................... 32
see Instrument cluster
COLLISION PREVENTION ASSIST
Operation/notes .............................. 69
COMAND
ON&OFFROAD menu .....................262
see separate operating instructions
COMAND display
Cleaning ......................................... 381
Combination switch ..........................131
Consumption statistics (on-board
computer) .......................................... 275
Convenience closing feature ..............95
Convenience opening feature ............95
Coolant (engine) Checking the level .........................373
Display message ............................ 306
Filling capacity ............................... 451
Important safety notes ..................450
Temperature (on-board computer) .287
Temperature gauge ........................ 272
Warning lamp ................................. 334
Cooling
see Climate control
Copyright ............................................. 30 Index
7

Symmetrical low beam
..................128
Tire ruts ......................................... 199
Towing a trailer .............................. 264
Traveling uphill ............................... 200
Wet road surface ........................... 194
DSR (Downhill Speed Regulation)
Display message ............................ 312
Function/notes ............................. 256
DVD audio
Operating (on-board computer) .....278
DVD video
Operating (on-board computer) .....279 E
EASY-ENTRY feature Activating/deactivating .................285
Function/notes ............................. 121
EASY-EXIT feature
Crash-responsive ........................... 122
Function/notes ............................. 121
Switching on/off ........................... 285
EBD (electronic brake force
distribution)
Display message ............................ 293
Function/notes ................................ 74
ECO display
Function/notes ............................. 192
On-board computer .......................276
Electronic Stability Program
see ESP ®
(Electronic Stability Program)
Emergency release
Driver's door .................................... 88
Vehicle ............................................. 88
Emergency spare wheel
General notes ................................ 439
Important safety notes ..................439
Removing ....................................... 440
Storage location ............................ 440
Technical data ............................... 441
Emergency Tensioning Devices
Function .......................................... .59
Safety guideline s............................. 43
Emergency unlocking
Tailgate ............................................ 93
Emissions control
Service and warranty information ....24 Engine
Check Engine warning lamp ........... 333
Display message ............................ 306
Engine number ...................... 444, 445
Irregular running ............................ 172
Jump-starting ................................. 395
Starting problems ..........................172
Starting the engine with the
SmartKey ....................................... 169
Starting with KEYLESS-GO .............170
Switching off .................................. 189
Tow-starting (vehicle) ..................... 400
Engine electronics
Problem (malfunction) ...................172
Engine jump starting
see Jump starting (engine)
Engine oil
Adding ........................................... 372
Additives ........................................ 450
Checking the oil level ..................... 371
Checking the oil level using the
dipstick .......................................... 371
Display message ............................ 308
Filling capacity ............................... 449
Notes about oil grades ................... 449
Notes on oil level/consumption ....371
Temperature (on-board computer) .287
Viscosity ........................................ 450
ESP ®
(Electronic Stability
Program) 4ETS ................................................ 72
AMG menu (on-board computer) ...287
Characteristics ................................. 73
Deactivating/activating ...................73
Display message ............................ 291
Function/notes ................................ 72
General notes .................................. 72
Important safety information ...........72
Trailer stabilization ........................... 74
Warning lamp ................................. 329
Exhaust check ................................... 192
Exhaust pipe (cleaning instructions) 381
Exterior lighting see Lights
Exterior mirrors
Adjusting ....................................... 122
Dipping (automatic) .......................12310
Index

Media Interface
see Separate operating instructions
Memory card (audio) .........................278
Memory function ............................... 125
Message memory (on-board
computer) .......................................... 290
Mirrors see Exterior mirrors
see Rear-view mirror
see Vanity mirror (in the sun visor)
Mobile phone
Menu (on-board computer) ............279
Modifying the programming
(SmartKey) ........................................... 81
MOExtended tires .............................. 387
Mounting wheels Lowering the vehicle ......................432
Mounting a new wheel ...................431
Preparing the vehicle .....................428
Raising the vehicle .........................429
Removing a wheel ..........................431
Securing the vehicle against
rolling away ................................... 428
MP3
Operation ....................................... 278
see separate operating instructions
Multifunction display
Function/notes ............................. 274
Permanent displa y......................... 283
Multifunction steering wheel
Operating the on-board computer .273
Overview .......................................... 35N
Navigation Menu (on-board computer) ............277
see separate operating instructions
Night View Assist Plus
Activating/deactivating .................241
Cleaning ......................................... 381
Problem (malfunction) ...................243
Notes on breaking-in a new vehicle 166 O
Occupant Classification System
(OCS) Faults ............................................... 53
Operation ........................................ .49
System self-test ............................... 51
Occupant safety
Air bags ........................................... 44
Important safety notes ....................42
PRE-SAFE ®
(anticipatory
occupant protection) .......................54
SRS (Supplemental Restraint
System) ........................................... 43
OCS
Faults ............................................... 53
Operation ........................................ .49
System self-test ............................... 51
Odometer ........................................... 275
Off-road driving Approach/departure angl e............ 455
Checklist after driving off-road ......198
Checklist before driving off-road .... 198
Fording depth ................................ 454
General information .......................197
Important safety notes ..................197
Maximum gradient climbing ability 455
Traveling uphill ............................... 200
Off-road programs (vehicles with
the ON&OFFROAD package)
Displays in the COMAND displa y... 262
Function/notes ............................. 258
Off-road program 1 ........................258
Off-road program 2 ........................259
Off-road system
4MATIC .......................................... 256
DSR ............................................... 256
LOW RANGE off-road gear .............259
Off-road 4ETS .................................. 72
Off-road ABS .................................... 68
Off-road ESP ®
.................................. 74
Off-road programs (vehicles with
the ON&OFFROAD package) ..........258
Oil
see Engine oil
On and Offroad menu (on-board
computer) .......................................... 28614
Index

Sliding sunroof
Important safety notes ....................98
Opening/closing .............................. 99
Problem (malfunction) ...................103
Resetting ....................................... 100
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery .......................83
Changing the programming .............81
Checking the battery .......................83
Convenience closing feature ............96
Convenience opening feature ..........95
Display message ............................ 323
Door central locking/unlocking .......80
Important safety notes ....................80
Loss ................................................. 85
Mechanical key ................................ 82
Overview .......................................... 80
Positions (ignition lock) .................167
Problem (malfunction) .....................85
Starting the engine ........................169
Snow chains
Information .................................... 407
Snow drive program ....................... 255
Sockets
Center console .............................. 353
General notes ................................ 352
Luggage compartment ...................353
Rear compartment .........................353
Specialist workshop ............................ 28
Special seat belt retractor .................. 63
Speed, controlling see Cruise control
Speedometer
Digital ............................................ 276
In the Instrument cluster .................33
Segments ...................................... 273
Selecting the unit of measurement 282
see Instrument cluster
SRS (Supplemental Restraint
System)
Display message ............................ 299
Introduction ..................................... 43
Warning lamp ................................. 332
Warning lamp (function) ................... 43 Standing lamps
Display message ............................ 305
Switching on/off ........................... 131
Starting (engine) ................................ 169
STEER CONTROL .................................. 76
Steering (display message) ..............322
Steering wheel Adjusting (electrically) ...................120
Adjusting (manually). .....................119
Button overview ............................... 35
Buttons (on-board computer) ......... 273
Cleaning ......................................... 382
Important safety notes ..................119
Paddle shifters ............................... 177
Steering wheel heating ..................120
Storing settings (memory function) 125
Steering wheel heating
Problem (malfunction) ...................121
Switching on/off ........................... 120
Steering wheel paddle shifters ........177
Stopwatch (RACETIMER) ................... 287
Stowage areas ................................... 340
Stowage compartments Armrest (under) ............................. 342
Center console .............................. 342
Cup holders ................................... 348
Eyeglasses compartment ...............342
Glove box ...................................... .341
Important safety information .........341
Stowage net ................................... 343
Stowage net ....................................... 343
Stowage space Center console (rear) .....................342
Summer tires ..................................... 406
Sun visor ............................................ 350
Supplemental restraint system see SRS (Supplemental Restraint
System)
Surround lighting (on-board
computer) .......................................... 284
Suspension tuning AMG adaptive sport suspension
system ........................................... 221
SETUP (on-board computer) ..........287
SUV
(Sport Utility Vehicle) .......................2618
Index

Switching air-recirculation mode
on/off
................................................. 161T
Tachometer ........................................ 273
Tailgate Display message ............................ 321
Emergency unlocking .......................93
Important safety notes ....................89
Limiting the opening angle ...............92
Opening/closing (automatically
from inside) ...................................... 92
Opening/closing (automatically
from outside) ................................... 90
Opening/closing (from outside) .......90
Opening dimensions ......................453
Power closing .................................. 88
Tail lamps
Display message ............................ 304
Tank
see Fuel tank
Tank content
Fuel gauge ....................................... 33
Technical data
Capacities ...................................... 445
Emergency spare wheel .................441
Information .................................... 444
Tires/wheels ................................. 432
Trailer loads ................................... 457
Vehicle data ................................... 453
TELEAID
Call priority .................................... 359
Downloading destinations
(COMAND) ..................................... 359
Downloading routes .......................363
Emergency call .............................. 356
Geo fencing ................................... 363
Locating a stolen vehicle ...............362
MB info call button ........................358
Remote vehicle locking ..................361
Roadside Assistance button ..........358
Search & Send ............................... 360
Self-test ......................................... 356
Speed alert .................................... 363
System .......................................... 356
Triggering the vehicle alarm ........... 364 Vehicle remote malfunction
diagnosis
....................................... 362
Vehicle remote unlocking ..............361
Tele Aid
General notes ................................ 355
Telephone
Accepting a call ............................. 279
Display message ............................ 322
Menu (on-board computer) ............279
Number from the phone book ....... .280
Redialing ........................................ 280
Rejecting/ending a call .................279
Temperature
Coolant .......................................... 272
Coolant (on-board computer) ......... 287
Engine oil (on-board computer) ...... 287
Outside temperature ..................... .273
Setting (climate control) ................157
Theft deterrent systems
ATA (Anti-Theft Alarm system) .........77
Immobilizer ...................................... 77
Through-loading ................................ 343
Time see separate operating instructions
Timing (RACETIMER) .........................287
TIREFIT kit .......................................... 388
Tire pressure Calling up (on-board computer) .....412
Checking manually ........................411
Display message ............................ 318
Important safety notes ..................412
Maximum ....................................... 410
Notes ............................................. 409
Not reached (TIREFIT) ....................390
Reached (TIREFIT) ..........................390
Recommended ............................... 408
Tire pressure loss warning
system General notes ................................ 411
Important safety notes ..................411
Restarting ...................................... 412
Tire pressure monitoring system
Checking the tire pressure
electronically ................................. 414
Function/notes ............................. 412
General notes ................................ 412
Important safety notes ..................413
Restarting ...................................... 415 Index
19

Vehicle emergency locking
................88
Vehicle identification number see VIN
Vehicle identification plate ..............444
Vehicle level AMG adaptive sport suspension
system ........................................... 221
Vehicle level (display message) .......310
Vehicle maintenance see ASSYST PLUS
Vehicle tool kit .................................. 386
Video Operating the DVD ......................... 279
VIN ...................................................... 444W
Warning and indicator lamps ABS ................................................ 327
Brakes ........................................... 326
Check Engine ................................. 333
Coolant .......................................... 334
Distance warning ........................... 336
DISTRONIC PLUS ........................... 336
ESP ®
.............................................. 329
ESP ®
OFF ....................................... 330
Overview .......................................... 34
PASSENGER AIRBAG OFF ................49
Reserve fuel ................................... 333
Seat belt ........................................ 324
SRS ................................................ 332
Tire pressure monitor ....................337
Warranty .............................................. 24
Washer fluid Display message ............................ 322
Wheel and tire combination
see Tires
Wheel bolt tightening torque ...........432
Wheel chock ...................................... 428
Wheels Changing a wheel .......................... 427
Checking ........................................ 405
Cleaning ......................................... 379
Cleaning (warning) .........................428
Emergency spare wheel .................439
Important safety notes ..................404
Interchanging/changing ................427
Mounting a new wheel ...................431Mounting a wheel
.......................... 428
Overview ........................................ 404
Removing a wheel ..........................431
Storing ........................................... 428
Tightening torque ........................... 432
Wheel size/tire size .......................432
Window curtain air bag
Display message ............................ 300
Operation ........................................ .48
Windows
see Side windows
Windshield
Defrosting ...................................... 159
Infrared reflective .......................... 367
Windshield washer fluid
see Windshield washer system
Windshield washer system
Adding washer fluid .......................374
Notes ............................................. 451
Windshield wipers
Problem (malfunction) ...................143
Rear window wiper ........................141
Replacing the wiper blades ............141
Switching on/off ........................... 140
Winter driving
Slippery road surfaces ...................196
Snow chains .................................. 407
Winter operation
General notes ................................ 406
Overview ........................................ 406
Radiator cover ............................... 371
Snow drive program ....................... 255
Winter tires
M+S tires ....................................... 406
Wiper blades
Cleaning ......................................... 379
Important safety notes ..................141
Replacing ....................................... 141
Replacing (rear window) ................142
Replacing (windshield )................... 141
Wooden trim (cleaning instructions) 382
Workshop see Qualified specialist workshop Z
ZONE function Switching on/off ........................... 15922
Index

Warning and indicator lamps
Function Page
:
L
Low-beam
headlamps 129
;
T
Parking lamps 130
=
÷
ESP® 329
?
K
High-beam
headlamps 132
A
Electric parking brake (red) 332
F
(USA only) !
(Canada only) B
!
Electric parking brake
(yellow) 332
C
·
Distance warning 336
D
#!
Turn signals 131
E
h
Tire pressure monitor 337 Function Page
F
6
SRS 332
G
ü
Seat belt 324
H
%
Diesel engine:
preglow 169
I
?
Coolant 334
J
R
Rear fog lamp 130
K
;
Check Engine 333
L
8
Reserve fuel M
å
ESP®
OFF 329
N
!
ABS 327
O
Brakes: 326
$
(USA only) J
(Canada only) 34
Instrument clusterAt a glance

SRS (Supplemental Restraint System)
Introduction SRS consists of:
R
6 SRS warning lamp
R Air bags
R The air bag control unit with crash sensors
R Emergency Tensioning Devices for the
front seat belts and the outer seat belts in
the rear
R Seat belt force limiters for the front seat
belts and the outer seat belts in the rear
SRS reduces the risk of vehicle occupants
coming into contact with parts of the
vehicle's interior in the event of an accident.
It can also reduce the forces to which vehicle
occupants are subjected during an accident.
SRS warning lamp G
WARNING
If SRS is malfunctioning, child restraint
system components may be triggered
unintentionally or might not be triggered at all
in the event of an accident with a high rate of
vehicle deceleration. There is an increased
risk of injury, possibly even fatal.
Have SRS checked and repaired immediately
at a qualified specialist workshop.
SRS functions are checked regularly when
you switch on the ignition and when the
engine is running. Therefore, malfunctions
can be detected in good time.
The 6 SRS warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out no later than a few seconds
after the engine is started.
The SRS components are in operational
readiness when the 6SRS warning lamp
goes out while the engine is running. There is a malfunction if:
R
the 6 SRS warning lamp does not light
up when the ignition is switched on
R the engine is running and the 6SRS
warning lamp does not go out after a few
seconds
R the engine is running and the 6SRS
warning lamp lights up again
Safety guidelines for seat belts,
Emergency Tensioning Devices (ETDs)
and air bags G
WARNING
R Damaged seat belts or seat belts that have
been subjected to stress in an accident
must be replaced. Their anchoring points
must also be checked. Only use seat belts
installed or supplied by an authorized
Mercedes-Benz Center.
R Air bags and pyrotechnic Emergency
Tensioning Devices (ETDs) contain
perchlorate material, which may require
special handling and regard for the
environment. Check your national disposal
guidelines. California residents, see
www.dtsc.ca.gov/HazardousWaste/
Perchlorate/index.cfm .
R Air bags and ETDs are designed to function
on a one-time-only basis. An air bag or ETD
that has deployed must be replaced. PRE-
SAFE ®
has electrically operated reversible
belt tensioners in addition to the
pyrotechnic ETDs.
R Do not pass seat belts over sharp edges.
They could tear.
R Do not make any modification that could
change the effectiveness of the seat belts.
R Do not bleach or dye seat belts as this may
severely weaken them. In a crash they may
not be able to provide adequate protection.
R No modifications of any kind may be made
to any components or wiring of the SRS.
R Do not change or remove any component
or part of the SRS. Occupant safety
43Safety
Z

R
BAS PLUS ( BrakeAssist System Plus)
(Y page 68)
R COLLISION PREVENTION ASSIST (distance
warning function and adaptive Brake
Assist) (Y page 69)
R ESP ®
(Electronic StabilityProgram)
(Y page 72)
R EBD ( Electronic Brake force Distribution)
(Y page 74)
R ADAPTIVE BRAKE (Y page 75)
R PRE-SAFE ®
Brake (Y page 75)
R STEER CONTROL (Y page 76) Important safety notes
If you fail to adapt your driving style or
become distracted, the driving safety
systems 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 distance 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 carefully.
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
attention to the notes on tires,
recommended minimum tire tread depths,
etc. (Y page 404).
In wintry driving conditions, always use
winter tires (M+S tires) and 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.
Important safety notes i
Observe the "Important safety notes"
section (Y page 67). G
WARNING
If ABS is faulty, the wheels could lock when
braking. The steerability and braking
characteristics may be severely impaired.
Additionally, further driving safety systems
are deactivated. There is an increased danger
of skidding and accidents.
Drive on carefully. Have ABS checked
immediately 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 ( Ypage 326) and
display messages which may be shown in the
instrument cluster (Y page 291).
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.
Braking X
If ABS intervenes: continue to depress the
brake pedal vigorously until the braking
situation 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. Driving safety systems
67Safety Z