check engine light MERCEDES-BENZ GL-Class 2013 X166 Owner's Manual

Anti-theft alarm system
see ATA (Anti-Theft Alarm system)
Approach/departure angle ..............194
Ashtray ............................................... 347
Assistance menu (on-board
computer) .......................................... 276
ASSYST PLUS Displaying a service message ........371
Hiding a service message ..............371
Notes ............................................. 370
Resetting the service interval
displa y........................................... 371
Service message ............................ 370
Special service requirements ......... 371
ATA (Anti-Theft Alarm system)
Activating/deactivating ...................76
Function .......................................... .76
Switching off the alarm ....................76
ATTENTIO NASSIST
Activating/deactivating .................277
Display message ............................ 306
Function/notes ............................. 234
Audio menu (on-board computer) ....273
Audio system see separate operating instructions
Authorized Centers
see Qualified specialist workshop
Authorized Mercedes-Benz Center
see Qualified specialist workshop
Authorized workshops
see Qualified specialist workshop
AUTO lights
Display message ............................ 302
see Lights
Automatic headlamp mode ..............124
Automatic transmission Automatic drive program ...............173
Changing gea r............................... 172
DIRECT SELECT leve r..................... 169
Display message ............................ 316
Drive program displa y.................... 169
Driving tips .................................... 172
Emergency running mode ..............177
Engaging drive position .................. 171
Engaging neutra l............................ 170
Engaging par kposition
automatically ................................. 170Engaging revers
egear ................... 170
Engaging the par kposition ............ 169
Kickdow n....................................... 172
Manual drive program ....................175
Overview ........................................ 169
Problem (malfunction) ...................177
Progra mselector button ................173
Pulling away ................................... 165
Shift range s................................... 174
Starting the engine ........................165
Steering wheel paddle shifters ......173
Trailer towing ................................. 172
Transmission position displa y........ 169
Transmissio npositions .................. 171
Automatic transmission
emergency mode ............................... 177
Axle load, permissible (trailer
towing) ............................................... 449 B
Bag hook ............................................ 342
Ball coupling Installing ........................................ 259
Removing ....................................... 263
Storing ........................................... 263
BAS (Brake Assist System) .................67
BAS PLUS (Brake Assist System
PLUS) .................................................... 67
Battery (SmartKey) Checking .......................................... 81
Important safety notes ....................81
Replacing ......................................... 81
Battery (vehicle)
Charging ........................................ 390
Display message ............................ 304
Important safety notes ..................387
Jump starting ................................. 391
Overview ........................................ 387
Blin dSpot Assist
Activating/deactivating .................277
Display message ............................ 310
Notes/function .............................. 237
Trailer towing ................................. 239
see Active Blind Spot Assist
BlueTEC
Adding DEF .................................... 181
BlueTEC (DEF) .................................... 442 Index
5

Children
In th evehicle ................................... 60
Restraint systems ............................ 60
Specia lseat belt retractor ...............62
Child seat
LATCH-type (ISOFIX) child seat
anchors ............................................ 63
Top Tether ....................................... 63
Cigarette lighter ................................ 348
Cleaning Mirro rturn signal ........................... 375
Trailer tow hitch ............................. 376
Climate control
3-zone automatic climate control
with additional rear-compartment
climate control ............................... 148
Automatic climate control (3-zone) 146
Controlling automatically ...............152
Cooling with aird ehumidification..151
Defrosting the windows .................156
Defrosting the windshield ..............155
Dual-zone automatic climate
control ........................................... 143
Important safety notes ..................142
Indicator lamp ................................ 152
Information on using 3-zone
automatic climate control ..............150
Maximum cooling .......................... 155
Notes on using automatic climate
control ........................................... 145
Overview of systems ......................142
Problems with cooling with air
dehumidification ............................ 152
Problem with the rear window
defroster ........................................ 157
Rea rcontrol panel ......................... 146
Rear control panel (3-zone
automatic climate control with
additional rear-compartment
climate control) ............................. 148
Setting the aird istribution.............154
Setting the airflow .........................154
Setting the airv ents...................... 158
Setting the climate mode (AIR
FLOW) ............................................ 153
Setting the temperature ................153
Switching air-recirculation mode
on/off ............................................ 157Switching on/off
........................... 150
Switching residual hea ton/off ......157
Switching the rear window
defroster on/off ............................ 156
Switching the ZONE function on/
off .................................................. 155
Coat hooks ......................................... 343
Cockpit Overview .......................................... 32
see Instrument cluster
COLLISIO NPREVENTION ASSIST
Operation/notes .............................. 68
COMAND
ON&OFFROAD menu .....................256
see separate operating instructions
COMAND display
Cleaning ......................................... 377
Combination switch ..........................127
Compass Calling up ....................................... 363
Consumption statistics (on-board
computer) .......................................... 271
Convenience closing feature ..............93
Convenience opening feature ............93
Coolan t(engine)
Checkin gthe level ......................... 369
Display message ............................ 303
Filling capacity ............................... 446
Important safety notes ..................445
Temperature (on-board computer) .282
Temperature gauge ........................ 267
Warning lamp ................................. 330
Cooling
see Climate control
Cornering light function
Display message ............................ 299
Function/notes ............................. 129
Crash-responsive emergency
lighting ............................................... 133
Crosswind driving assistance ............73
Cruise control Activating ....................................... 196
Activatio ncondition s..................... 196
Cruise control leve r....................... 196
Deactivating ................................... 198
Display message ............................ 313
Driving system ............................... 195 Index
7

E
EASY-ENTRY feature Activating/deactivating .................281
Function/notes ............................. 117
EASY-EXIT feature
Crash-responsive ........................... 118
Function/notes ............................. 117
Switching on/off ........................... 281
EBD (electronic brake force
distribution)
Display message ............................ 289
Function/notes ................................ 73
Electronic Stability Program
see ESP ®
(Electroni cStability Program)
Emergenc yrelease
Driver's door .................................... 86
Vehicle ............................................. 86
Emergency spare wheel
Important safety notes ..................434
Points to remember .......................434
Removing ....................................... 435
Storage location ............................ 435
Technical data ............................... 436
Emergency Tensioning Devices
Function .......................................... .59
Safety guideline s............................. 43
Emergency unlocking
Tailgate ............................................ 91
Emissions control
Service and warranty information ....24
Engine
Check Engine warning lamp ........... 329
Display message ............................ 303
Engine number ............................... 439
Irregularr unning............................ 168
Jump-starting ................................. 391
Starting problems ..........................168
Starting the engine with the
SmartKey ....................................... 165
Starting with KEYLESS-GO .............165
Switching off .................................. 184
Tow-starting (vehicle) ..................... 396
Engine electronics
Problem (malfunction) ...................168
Engine oil
Adding ........................................... 368
Additives ........................................ 444Checking the oil level ..................... 367
Checking the oil level using the
dipstick
.......................................... 368
Display message ............................ 304
Filling capacity ............................... 444
Notes about oil grades ................... 443
Notes on oil level/consumption ....367
Temperature (on-board computer) .282
Viscosity ........................................ 444
ESP ®
(Electronic Stability
Program) 4ETS ................................................ 71
AMG menu (on-board computer) ...283
Deactivating/activating ...................72
Display message ............................ 287
Function/notes ................................ 70
Important safety information ...........71
Trailer stabilization ........................... 72
Warning lamp ................................. 325
Exhaus tcheck ................................... 186
Exhaus tpipe (cleaning instructions) 376
Exterior lighting see Lights
Exterior mirrors
Adjustin g....................................... 118
Dipping (automatic) .......................119
Folding in/ou t(automatically) .......119
Folding in/ou t(electrically) ...........119
Folding in whe nlocking (on-board
computer) ...................................... 281
Out of position (troubleshooting) ...119
Setting ........................................... 119
Storing settings (memory function) 121
Storing the parking position ..........120
Eyeglasses compartment .................338 F
Fille rcap
see Fuel filler flap
First-aid kit ......................................... 382
Flat tire MOExtended tires ..........................384
Preparing the vehicle .....................383
TIREFIT kit ...................................... 385
Floormats ........................................... 363
Folding the rear bench seat
forwards/back .................................. 34010
Index

Multifunction steering wheel
Operating the on-board computer .268
Overview .......................................... 35N
Navigation Menu (on-board computer) ............272
see separate operating instructions
Night View Assist Plus
Activating/deactivating .................235
Cleaning ......................................... 377
Problem (malfunction) ...................237
Notes on breaking-in anew vehicle 162 O
Occupant Classification System
(OCS) Fault s............................................... 53
Operation ........................................ .48
System self-test ............................... 51
Occupant safety
Childre ninthe vehicle ..................... 60
Important safety notes ....................42
OCS
Faults ............................................... 53
Operation ........................................ .48
System self-test ............................... 51
Off-road driving
Checklist after driving off-roa d...... 192
Checklist before driving off-road .... 192
General information .......................191
Important safety notes ..................191
Traveling uphill ............................... 194
Off-road program (vehicles
without the ON&OFFROAD
package)
Function/notes ............................. 252
Off-road programs (vehicles with
the ON&OFFROAD package)
Displays in the COMAND displa y... 256
Function/notes ............................. 252
Off-road program 1........................ 253
Off-road program 2........................ 253
Off-road system
4MATIC .......................................... 250
DSR ............................................... 250LOW RANGE off-road gear
.............254
Off-road 4ETS .................................. 71
Off-road ABS .................................... 67
Off-road ESP ®
.................................. 72
Off-road program (vehicles
without the ON&OFFROAD
package) ........................................ 252
Off-road programs (vehicle swith
the ON&OFFROAD package) ..........252
Oil
see Engine oil
On and Offroad menu (on-board
computer) .......................................... 282
On-board computer AMG menu ..................................... 282
Assistance menu ........................... 276
Audi omenu ................................... 273
Convenience submenu ..................281
Displaying a service message ........371
Display messages ..........................286
DISTRONI CPLUS ........................... 205
Factory settings submenu .............282
Important safety notes ..................266
Instrument cluster submenu ..........278
Lighting submenu .......................... 278
Menu overview .............................. 270
Message memory .......................... 286
Navigation menu ............................ 272
On and Offroa dmenu .................... 282
Operation ....................................... 268
RACETIMER ................................... 283
Service menu ................................. 277
Settings menu ............................... 278
Standard displa y............................ 270
Telephone menu ............................ 274
Trip menu ...................................... 270
Vehicle submenu ........................... 280
Video DVD operatio n..................... 274
On-road programs
AUTO program ............................... 248
Function/notes ............................. 247
Snow program ............................... 249
SPORT program ............................. 248
Trailer program .............................. 249
Opening and closing the side trim
panels ................................................. 135
Operating system see On-board computer 14
Index

SRS (Supplemental Restraint System)
Introduction SRS consists of:
R
001F 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 Belt force limiters
SRS reduces the risk of occupants coming
into contact with the vehicle's interior in the
event of an accident. It can also reduce the
effect of the forces to which occupants are
subjected during an accident.
SRS warning lamp G
WARNING
The SRS self-chec khas detected a
malfunction if the 001FSRS indicator lamp:
R does no tlight up at all
R does not go out after approximately four
seconds after the engine is started
R lights up after the engin eis started or while
the vehicle is in motion
For your safety, Mercedes-Benz strongly
recommends that you have the system
checked as soon as possible at a qualified
specialist workshop. SRS may otherwise fail
to activate when it is needed in the event of
an accident, which could lead to serious or
fatal injuries. SRS might also be activated
unexpectedly and unnecessarily, which could
also result in injury.
In addition, work carried out improperly on
SRS may render SRS inoperative or cause
unintended air bag deployment. Work on the
SRS system should only be carried out by
qualified specialist personnel. Consult a
qualified specialist workshop.
If it is necessary to modify an air bag system
to accommodate a person with disabilities,
contact an authorized Mercedes-Benz Center for details. USA only: for further information,
contact our Customer Assistance Center at
1-800-FOR-MERCedes (1-800-367-6372).
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 001F 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 001FSRS warning lamp
goes out while the engine is running.
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.C heck 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. Occupant safety
43Safety
Z

only possible using the switches in the
driver's door. If indicator lamp
0003is off,
operation is possible using the switches in
the rear compartment. 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 66)
R BAS (Brake AssistSystem) (Y page 67)
R BAS PLUS ( BrakeAssist System Plus)
(Y page 67)
R COLLISION PREVENTION ASSIST
(Y page 68)
R ESP ®
(Electronic StabilityProgram)
(Y page 71)
R EBD ( Electronic Brake force Distribution)
(Y page 73)
R ADAPTIVE BRAKE (Y page 73)
R PRE-SAFE ®
Brake (Y page 73)
R STEER CONTROL (Y page 75)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 asafe 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 note
son tires,
recommended minimu mtire tread depths,
etc. (Y page 400).
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)
Important safety notes i
Observe the "Importan tsafety notes"
sectio n(Ypage 66). G
WARNING
If ABSi s 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 (Y page 322) and
display messages which may be shown in the
instrument cluster (Y page 287).
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.
ABS works from a speed of about 5 mph
(8 km/h) upwards, regardless of road-surface
conditions. ABS works on slippery surfaces,
even if you only brake gently.
The yellow 0019ABS warning lamp in the
instrument cluster lights up when the ignition
is switched on. It goes out when the engine is
running. 66
Driving safety systemsSafety

or more wheels are braked to stabilize the
vehicle. The engine output is also modified to
keep the vehicle on the desired course within
physical limits. ESP ®
assists the driver when
pulling away on wet or slippery roads. ESP ®
can also stabilize the vehicle during braking.
4ETS (Electronic Traction System) 4ETS traction control is part of ESP
®
.
Traction control brakes the drive wheels
individually if they spin. This enables you to
pull away and accelerate on slippery surfaces,
for example if the road surface is slippery on
one side. In addition, more drive torque is
transferred to the wheel or wheels with
traction.
Traction control remains active, even if you
deactivate ESP ®
.
In appropriate driving situations, activate the
off-road program:
X Vehicles without the ON&OFFROAD
package (Y page 252)
X Vehicles with the ON&OFFROAD package
(Y page 252)
Off-road 4ETS (Electronic Traction
System) A4
ETS syste mspecifically suited to off-road
terrain is activated automatically once the off-
road program is activated on:
R Vehicles without the ON&OFFROAD
package (Y page 252)
R Vehicles with the ON&OFFROA Dpackage
(Y page 252)
Important safety notes G
WARNING
If ESP ®
is malfunctioning, ESP ®
is unable to
stabilize the vehicle .Additionally, further
driving safety systems are deactivated. This
increases the risk of skidding and an accident.
Drive on carefully. Have ESP ®
checked at a
qualified specialist workshop. !
Only operate the vehicle for a maximum
of ten seconds on a brake test
dynamometer. Switch off the ignition.
Application of the brakes by ESP ®
may
otherwise destroy the brake system.
! A function or performance test should
only be carried out on atwo-axle
dynamometer. Before you operate the
vehicle on such a dynamometer, please
consult a qualified workshop .You could
otherwise damage the drive train or the
brake system.
ESP ®
is deactivated if the 0017warning lamp
in the instrument cluster lights up
continuously when the engine is running.
If the 000F warning lamp and the 0017
warning lamp are lit continuously, ESP ®
is not
available due to a malfunction.
Observe the information on warning lamps
(Y page 325) and display messages which
may be shown in the instrument cluster
(Y page 287).
i Only use wheels with the recommended
tire sizes. Only then will ESP ®
function
properly.
Characteristics of ESP ® General information
ESP
®
is activated automatically when the
engine is started.
If ESP ®
intervenes, the 000FESP®
warning
lamp flashes in the instrument cluster.
If ESP ®
intervenes:
X Do not deactivate ESP ®
under any
circumstances.
X Only depress the accelerator pedal as far
as necessary when pulling away.
X Adapt your driving style to suit the
prevailing road and weather conditions. Driving safety systems
71Safety Z

Strong magnetic fields can occur in the
vicinity of powerful electrical installations.
R Do not keep the SmartKey:
- with electronic devices, e.g. a mobile
phone or another SmartKey
- with metallic objects, e.g. coins or metal
foil
- inside metallic objects, e.g. a metal case
This can affect the functionality of the
SmartKey.
Do not keep the KEYLESS-GO key in the
temperature-controlled cup holder.
Otherwise, the KEYLESS-GO key will not be
recognized. SmartKey functions
0002
000C To lock the vehicle
0003 0004 To open/close the tailgate
0021 000D To unlock the vehicle
X To unloc kcentrally: press the 000D
button.
If you do not open th evehicle within
approximately 40 seconds of unlocking:
R the vehicle is locked again.
R the theft deterrent locking system is
armed again.
X To lock centrally: press the000Cbutton.
The SmartKey centrally locks/unlocks:
R the doors
R the tailgate
R the fuel filler flap When unlocking, the turn signals flash once.
When locking, they flash three times.
You can also set an audible signal to confirm
that the vehicle has been locked. The audible
signal can be activated and deactivated using
the on-board computer (Y
page 280).
When it is dark, the surround lighting also
comes on if it is activated in the on-board
computer (Y page 279). KEYLESS-GO
General notes Bear in mind that the engine can be started
by any of the vehicle occupants if there is a
KEYLESS-GO key in the vehicle.
Locking/unlocking centrally
You can start, lock or unlock the vehicle using
KEYLESS-GO. To do this, you only need carry
the SmartKey with you. You can combine the
functions of KEYLESS-GO with those of a
conventional SmartKey. Unlock the vehicle
by using KEYLESS-GO, for instance, and lock
it using the
000Cbutton on the SmartKey.
When locking or unlocking with KEYLESS-GO,
the distance between the SmartKey and the
corresponding door handle must not be
greater than 3 ft (1 m).
KEYLESS-GO checks whether a valid
SmartKey is in the vehicle by periodically
establishing a radio connection between the
vehicle and the SmartKey. This happens:
R when the external door handles are
touched
R when starting the engine
R while the vehicle is in motion SmartKey
79Opening and closing Z

Problem Possible causes/consequences and
0001 Solutions
The engine cannot be
started using the
SmartKey. The on-board voltage is too low.
X
Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary
(Y page 390).
or
X Jump-start the vehicle (Y page 391).
or
X Consult a qualified specialist workshop. The engine cannot be
started using KEYLESS-
GO. The SmartKey is in
the vehicle. Ad
oor is open. Therefore, the SmartKey cannot be detected as
easily.
X Close the door and try to start the vehicle again. There is interference from a powerful source of radio waves.
X
Start your vehicle with the SmartKey in the ignition lock. Doors
Important safety notes
G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shift the automatic transmission out of
parking position P.
R starting the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children. G
WARNING
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unsupervised in the
vehicle, even if they are secured in a child
restraint system, and do not give them access
to an unlocked vehicle. Achild's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. They could:
R injure themselves on vehicle parts
R be seriously or fatally injured by extreme
heat or cold
R injure themselves or have an accident with
vehicle equipment that may still be in
operation even after the SmartKey has
been removed from the ignition, such as the
seat adjustment, steering wheel
adjustment or memory function.
If children open a door, they could cause
severe or even fatal injury to other persons; if
they get out of the vehicle, they could injure 84
DoorsOpening and closing

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Read the information on qualified
specialist workshops: (Y page 28).Correct driver's seat position
G
WARNING
You could lose control of your vehicle if you
do the following while driving:
R adjust the driver's seat, head restraint,
steering wheel or mirrors
R faste nthe seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint,
steering wheel and mirror and fasten your
seat belt before starting the engine. X
Observe the safety guidelines on seat
adjustment (Y page 103).
X Make sure that seat 0021is adjusted
properly.
Electrical seat adjustment (Y page 104)
When adjusting the seat, make sure that:
R you are as far away from the driver's air bag
as possible.
R you are sitting in a normal upright position.
R you can fasten the seat belt properly.
R you have moved the backrest to an almost
vertical position.
R you have set the seat cushion angle so that
your thighs are gently supported.
R you can depress the pedals properly.
X Check whether the head restraint is
adjusted properly.
When doing so, make sure that you have
adjusted the head restraint so that the back
of your head is supported at eye level by
the center of the head restraint.A lso make
sure that you have adjusted the head
restraint so that the back of your head is as
close to the head restraint as possible .This
will be the case if the head restraint is
adjusted correctly (Y page 105).
X Observe the safety guidelines on steering
wheel adjustment (Y page 115).
X Make sure that steering wheel 0002is
adjusted properly.
Adjusting the steering wheel manually
(Y page 115)
Adjusting the steering wheel electrically
(Y page 116)
When adjusting the steering wheel, make
sure that:
R you can hold the steering wheel with your
arms slightly bent.
R you can move your legs freely.
R you can see all the displays in the
instrumentc luster clearly.
X Observe the safety guidelines for seat belts
(Y page 54). 102
Correct driver's seat positionSeats, steering wheel and mirrors