warning lights MERCEDES-BENZ GL-Class 2013 X166 Owner's Manual

Brake Assist
see BAS (Brake Assist System)
Brake fluid
Displa ymessage ............................ 293
Notes ............................................. 444
Brake lamps
Changing bulbs .............................. 136
Display message ............................ 300
Brakes
ABS .................................................. 66
Adaptive Brake Assist ......................69
BAS .................................................. 67
BAS PLUS ........................................ 67
Brake fluid (notes) .........................444
Display message ............................ 287
Driving tips .................................... 187
High-performance brake system ....188
Important safety notes ..................187
Maintenance .................................. 188
Parking brake ................................ 184
Warning lamp ................................. 322
Breakdown
see Flat tire
see Towing away
Bulbs
see Changing bulbs C
California Important notice for retail
customers and lessees ....................25
Calling up a malfunction
see Display messages
Car
see Vehicle
Care
360° camera ................................. 376
Carpets .......................................... 379
Car wash ........................................ 372
Display ........................................... 377
Exhaus tpipe .................................. 376
Exterior lights ................................ 375
Gea rors electo rlever .................... 378
Interior ........................................... 377
Matte finish ................................... 374
Nigh tView Assist Plus ...................377
Notes ............................................. 371Paint
.............................................. 373
Plastic trim .................................... 377
Power washer ................................ 373
Rea rview camera .......................... 375
Roof lining ...................................... 379
Seat bel t........................................ 379
Seat cover ..................................... 378
Sensors ......................................... 375
Steering wheel ............................... 378
Trim pieces .................................... 378
Washing by hand ........................... 373
Wheels ........................................... 374
Windows ........................................ 374
Wiper blades .................................. 375
Wooden trim .................................. 378
Cargo compartment cover
Notes/ho wtouse......................... 342
Cargo compartment enlargement
Important safety notes ..................340
Cargo compartment floor
Opening/closing ............................ 343
Stowag ewell (under) ..................... 343
Cargo tie down rings .........................341
Car keys see SmartKey
Car wash (care) ................................. 372
CD player/CD changer (on-board
computer) .......................................... 274
Center console Lowe rsection .................................. 37
Uppe rsection .................................. 36
Central locking
Automatic locking (on-board
computer) ...................................... 280
Locking/unlocking (SmartKey) ........79
Changing bulbs
Brake lamps ................................... 136
High-beam headlamps ...................135
Important safety notes ..................133
Low-beam headlamps ....................134
Overview of bul btypes .................. 133
Removing/replacing the cover
(front wheel arch) .......................... 134
Child-proof locks
Important safety notes ....................65
Rea rdoors ....................................... 656
Index

Function/notes
............................. 196
Important safety notes ..................195
Storing and maintaining current
spee d............................................. 196
Cu p holder
Center console .............................. 345
Important safety notes ..................344
Rea rcompartmen t......................... 345
Temperature controlle d................. 345
Third row of seats ..........................346
Customer Assistance Center (CAC) ...28
Customer Relations Department .......28 D
Dashboard lighting see Instrument cluster lighting
Data
see Technical data
Daytime running lamps
Display message ............................ 301
Function/notes ............................. 124
Switching on/off (on-board
computer) ...................................... 278
Dealerships
see Qualified specialist workshop
Declarations of conformity ................. 27
DEF Adding ........................................... 181
Display message ............................ 306
Filling capacity ............................... 443
Important safety notes ..................442
Delaye dswitch-off
Exterio rlighting (on-board
computer )...................................... 279
Interior lighting .............................. 280
Diagnostics connection ......................27
Diesel ................................................. .441
Differential locks (display message) 308
Digital speedometer .........................271
DIREC TSELECT lever
see Automatic transmission
Display messages
ASSYS TPLUS ................................ 370
Calling up (on-board computer) .....286
Driving systems ............................. 306
Engine ............................................ 303
General notes ................................ 286Hiding (on-board computer)
...........286
KEYLESS-GO .................................. 319
Lights ............................................ .299
Safety systems .............................. 287
SmartKey ....................................... 319
Tires ............................................... 314
Vehicle .......................................... .316
Distance display (on-board
computer) .......................................... 276
Distance recorder see Trip odometer
Distance warning (warning lamp) ....332
Distance warning function Activating/deactivating .................276
Function/notes ................................ 68
Warning lamp ................................. 332
DISTRONIC PLUS
Activating ....................................... 200
Activation conditions .....................200
Cruise control leve r....................... 200
Deactivating ................................... 204
Display message ............................ 312
Displays in the multifunction
displa y........................................... 205
Driving tips .................................... 206
Function/notes ............................. 198
Important safety notes ..................198
Setting the specified minimum
distance ......................................... 204
Warning lamp ................................. 332
Doors
Automatic locking (on-board
computer) ...................................... 280
Automatic locking (switch) .............. .86
Central locking/unlocking
(SmartKey) ...................................... .79
Control panel ................................... 40
Display message ............................ 317
Emergency locking ........................... 87
Emergency unlocking .......................86
Important safety notes ....................84
Opening (from inside) ......................85
Overview .......................................... 84
Power closing feature ......................86
Drinking and driving .........................186
Drive program Automatic ...................................... 173
Display (DIRECT SELECT lever) ......169 8
Index

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

Insect protection on the radiator
....367
Instrument cluster Overview .................................. 33, 267
Warning and indicator lamps ...34, 320
Instrument cluster lighting ..............267
Interior lighting ................................. 131
Automatic control ..........................132
Delayed switch-off (on-board
computer) ...................................... 280
Emergency lighting ........................133
Manual control ............................... 132
Overview ........................................ 131
Reading lamp ................................. 131
Setting the brightness of the
ambient lighting (on-board
computer) ...................................... 279
Setting the color of the ambient
lighting (on-board computer) .........279 J
Jack Storage location ............................ 382
Using ............................................. 425
Jump starting (engine) ......................391 K
KEYLESS-GO Convenience closing feature ............94
Display message ............................ 319
Locking ............................................ 79
Start/Stop button .......................... 163
Starting the engine ........................165
Unlocking ......................................... 79
Keyp ositions
KEYLESS-GO .................................. 163
SmartKey ....................................... 163
Kickdown
Driving tips .................................... 172
Manual drive program ....................176
Knee bag .............................................. 47L
Lamps see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating .................277Display message
............................ 310
Function/informatio n.................... 239
see Active Lane Keeping Assist
Lap time (RACETIMER) ......................283
LATCH-type (ISOFIX) child seat
anchors ................................................ 63
Level control (display message) ......307
Level control (vehicles with
AIRMATIC package)
Basi csettings ................................ 214
Function/notes ............................. 213
Important safety notes ..................213
Level control (vehicles with the
ON&OFFROAD package)
Basi csettings ................................ 208
Function/notes ............................. 207
Important safety notes ..................207
License plate lamp (display
message) ............................................ 301
Light function ,active
Display message ............................ 302
Lighting
Ligh tswitc h................................... 124
Lights
Activating/deactivating the
interio rlighting delayed switch-off .280
Active light function .......................129
Automatic headlamp mode ............124
Cornering light function .................129
Driving abroad ............................... 124
Hazard warning lamps ...................128
High beam flasher .......................... 128
High-beam headlamps ...................128
Low-beam headlamps ....................125
Parking lamps ................................ 126
Rea rfog lamp ................................ 126
Setting the brightness of the
ambient lighting (on-board
computer) ...................................... 279
Setting the color of the ambient
lighting (on-board computer) .........279
Standing lamps .............................. 127
Switching Adaptive Highbeam
Assist on/off ................................. 279
Switching the daytime running
lamps on/off (on-board computer) 278 12
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

must always be correctly seated and wear
their seat belts.
For maximum protection in the event of a
collision, you must always be in the normal
seat position with yourb ack against the
backrest. Faste nyour seat belt and make sure
that it is correctly positioned on your body.
As the air bag inflates with considerable
speed and force, a proper seating position
and correct positioning of the hands on the
steering wheel will help to keep you at a safe
distance from the air bag. Occupants who are
not wearing their seat belt, are not seated
properly or are too close to the air bag can be
seriously injured or killed by an air bag, as it
inflates with great force instantaneously:
R sit with the seat belt fastened correctly and
in a position that is as upright as possible
with your back against the backrest.
R move the driver's seat as far back as
possible, still permitting proper operation
of vehicle controls. The distance from the
center of the driver's chest to the center of
the air bag cover on the steering wheel
must be at least 10 inches (25 cm). You
should be able to accomplish this by
adjusting the seat and steering wheel. If
you have any difficulties, please contact an
authorized Mercedes-Benz Center.
R do not lean your head or chest close to the
steering wheel or dashboard.
R only hold the steering wheel on the outside.
Placing hands and arms inside the rim can
increase the risk and potential severity of
hand/arm injury if the driver front air bag
inflates.
R adjust the front-passenger seat as far back
as possible from the dashboard when the
seat is occupied.
R occupants, especially children, should
never place their bodies or lean their heads
in the area of the door where the side
impact air bag inflates. This could result in
serious or fatal injuries should the side
impact air bag be deployed. Always sit as
upright as possible, wear the seat belt properly and use an appropriately sized
infant restraint, toddler restraint or booster
seat recommended for the size and weight
of the child.
Failure to follow these instructions can result
in severe injuries to you or other occupants.
If you sell your vehicle, it is important that you
make the buyer aware of this safety
information. Be sure to give the buyer this
Operator's Manual. G
WARNING
Accident research shows that the safest place
for children in an automobile is in a rear seat.
As ide impact air bag related injury may occur
if occupants, especially children, are not
properly seated or restraine dwhen next to a
side impact air bag which needs to deploy
rapidly in a side impact in order to do its job.
To help avoid the possibility of injury, please
follow these guidelines:
(1) Always sit as upright as possible and use the seat belts properly.
Make sure that children 12 years
old and under use an appropriately
sized child restraint, infant
restraint, or booster seat
recommended for the size and
weight of the child.
(2) Always wear seat belts properly.
If the air bags are deployed, you will hear a
bang, and a small amount of powder may also
be released. Only in rare cases will the bang
affect your hearing. The powder that is
released generally does not constitute a
health hazard. The 001FSRS warning lamp
lights up.
The air bags are deployed if the air bag control
unit detects the need for deployment. Only in
the event of such a situation will the air bags
provide their supplemental protection.
If the driver and front passenger do not wear
their seat belts, it is not possible for the air
bags to provide their supplemental
protection. Occupant safety
45Safety Z

If the SmartKey has been removed from the
ignition lock or is in position 0,
001A001C indicator lamp 0002does not light
up.
The Occupant Classification System (OCS)
categorizes the occupant on the front-
passenger seat using a weight sensor. The
front-passenger front air bag is deactivated
automatically for certain weight categories.
001A001C indicator lamp 0002shows you the
current status. If
001A001C indicator lamp 0002lights up, the
front-passenger air bag is disabled.
The system does not deactivate:
R the side impact air bag
R the window curtain air bag
R the Emergency Tensioning Devices
To be classified correctly, the front passenger
must sit:
R with the seat belt fastened correctly
R in a positio nthat is as upright as possible
with their back against the seat backrest
R with their feet on the floor
The OCS weight sensor reading is affected if
the occupant's weight is transferred, e.g. by
leaning on the armrest.
If the front-passenger seat, the seat cover or
the seat cushion are damaged, have the
necessary repair work carried out at a
qualified specialist workshop.
For safety reasons, Mercedes-Benz
recommends that you only use seat
accessories that have been approved by
Mercedes-Benz. Both the driver and the front passenger
should always observe the
001A001C
indicator lamp to determine whether or not
the front passenger is positioned correctly.
Also observe the air bag display messages,
which appearint he instrumentcluster
(Y page 298).
If the driver's air bag deploys, this does not
mean that the front-passenger front air bag
will also deploy.
The OCS may have detected that the seat:
R is empty or occupied by the weight of a
typical child up to twelve months old,
seated in a child restraint system
R is occupied by a small individual, such as a
young teenager or a small adult
R is occupied by a child in a child restraint
system whose weight is greater than that
of a typical twelve month old child.
These are examples of when the OCS
deactivates the front-passenger front air bag.
Deactivation takes place although the
collision fulfills the criteria for deploying the
driver's air bag.
System self-test G
WARNING
If the 001A001Cindicator lamp does not
illuminate, the system is not functioning. You
must contact an authorized Mercedes-Benz
Center before seating any child on the front
passenger seat. G
WARNING
Never place anything betwee nseat cushion
and child seat (e.g. a pillow), since it reduces
the effectiveness of the OCS. The underside
and rear side child restraint system must be
placed entirely on the seat cushion and the
backrest of the front-passenger seat
backrest.
If necessary, adjust the tilt of the passenger
seat backrest. Occupant safety
51Safety
Z

Problems with the occupant classification system
G
WARNING
If the 001A001C indicator lamp illuminates and remains illuminated when the weight of a typical
adult or someone larger than a small individual has been detected on the passenger seat, do not
allow any occupant to use the passenger seat until the system has been repaired. G
WARNING
If the 001A001C indicator lamp does not illuminate or remains out with the weight of a typical
12-month-old child in a standard child restraint or less, or is unoccupied, on the front-passenger
seat, do not transport achild on the front-passenger seat until the system has been repaired. Problem Possible causes/consequences and
0001 Solutions
The
001A001C
indicator lamp lights up
and stays on.
The person on the
front-passenger seat:
R has the weight of a
typical adult
R has been determined
by the system not to
be a child The OCS is malfunctioning.
X
Have the OCS checked as soon as possible at a qualified
specialist workshop.
X Observe the additional messages in the multifunction display
(Y page 298). Problem Possible causes/consequences and
0001 Solutions
The
001A001C
indicator lamp does not
light up and/or does
not stay on.
The front-passenger
seat is:
R unoccupied
R occupied with a
weight up to that of a
typical twelve-
month-old child in a
standard child
restraint system The OCS is malfunctioning.
X
Make sure there is nothing between the seat cushion and the
child seat.
X Check the installation of the child restraint system.
X Make sure that no objectsa re applying additional weight onto
the seat.
X If the 001A001C indicator lamp remains off, have the OCS
checked as soon as possible at a qualified specialist workshop.
Do not transport a child on the front-passenge rseat as long as
the OCS is not functioning.
X Observe the additional messages in the multifunction display
(Y page 298). Occupant safety
53Safety Z

X
Slide the belt sash guide downwards.
X Release belt sash guide release 0002and
make sure tha tthe belt sash guide has
engaged.
Releasing seat belts !
Make sure that the seat belt is fully rolled
up. Otherwise, the seat belt or belt tongue
will be trapped in the door or in the seat
mechanism. This could damage the door,
the door trim panel and the seat belt.
Damaged seat belts can no longer fulfill
their protective function and must be
replaced. Visit a qualified specialist
workshop. 0002
Belt sash guide
0003 Seat belt tongue
0021 Buckle
0020 Release button
X Press release button 0020and guide belt
tongue 0003back towards belt sash
guide 0002.
Belt warning for the driver and front
passenger Regardless of whether the driver's and front-
passenger seat belts have already been
fastened, the
0020seat belt warning lamp lights up for six seconds each time the engine
is started. It then goes out if the driver and
the front passenger have already fastened
their seat belts.
If the driver's seat belt is not fastened when
the engine is started, an additional warning
tone will sound. This warning tone stops after
a maximum of six seconds or once the
driver's seat belt is fastened.
If after six seconds, the driver or front
passenger have not fastened their seat belts
and the doors are closed:
R the 0020 seat belt warning lamp remains lit
as long as the driver's or front-passenger's
seat belt is not fastened
and
R if a vehicle speed of 15 mph (25 km/h) is
exceeded, the 0020seat belt warning lamp
begins to flash. Awarning tone also sounds
with increasing intensity for a maximum of
60 seconds or until the driver or front
passenger have fastened their seat belts.
If the driver/front passenger unfasten their
seat belt while the vehicle is in motion, the
0020 seat belt warning lamp lights up and a
warning tone sounds again.
The warning tone ceases eve nifthe driver or
front-passenger seat belt has still not been
fastened after 60 seconds. The 0020seat belt
warning lamp stops flashing but remains
illuminated.
After the vehicle comes to a standstill, the
warning tone is reactivated and the seat belt
warning lamp 0020flashes again if the vehicle
speed again exceeds 15 mph (25 km/h).
The 0020 seat belt warning lamp only goes
out if:
R both the driver and the front passenger
have fastened their seat belts.
or
R the vehicle is stationary and a door is open.
i For more information on the 0020seat
belt warning lamp, see "Warning and 58
Occupant safetySafety

indicator lamps in the instrument cluster,
seat belts" (Y page 321).
Emergency Tensioning Devices, seat
belt force limiters G
WARNING
Pyrotechnic Emergency Tensioning Devices
that have been deployed must be renewed.
For your safety, when disposing of Emergency
Tensioning Devices, always observe the
safety instructions .These are available from
any authorized Mercedes-Ben zCenter.
The PRE-SAFE ®
system has electrically
operated reversible pre-tensioners that do
not require replacement after activation.
! If the front-passenger seat is not
occupied, do not engage the seat belt
tongue in the buckle on the front-
passenger seat. Otherwise, the Emergency
Tensioning Device could be triggered in the
event of an accident.
X In order to ensure that the pyrotechnic
Emergency Tensioning Devices have not
been triggered, always have the seat belts
checked after an accident.
If the Emergency Tensioning Devices have
been triggered, they must be replaced.
The seat belts on the following seats have
Emergency Tensioning Devices and belt force
limiters:
R driver's and front-passenger seat
R the outer seats in the second row
R the seats in the third row
The ETDs tighten the seat belts in an accident,
pulling them close against the body.
The ETDs do not correct incorrect seat
positions or incorrectly fastened seat belts.
The ETDs do not pull vehicle occupants back
towards the backrest.
If the seat belt is also equipped with a seat
belt force limiter and this is triggered, the
force exerted by the seat belt on the vehicle
occupant is reduced. The belt force limiters for the front seats are
synchronized with the fron
tair bags, which
take on a part of the deceleration force. This
results in the force exerted on the occupant
being distributed over a greater area.
The ETDs can only be activated when:
R the ignition is switched on.
R the restraint systems are operational; see
"SRS warning lamp" (Y page 43).
R the belt tongue is engaged in the buckle on
each of the lap-shoulder belts in the front.
The belt tensioners on the outside seats in the
second row and on the seats in the third row
are triggered independently of the lock status
of the seat belts.
The ETDs are triggered depending on the type
and severity of an accident:
R if, in the event of a head-on or rear-end
collision, the vehicle decelerates or
accelerates rapidly in a longitudinal
direction during the initial stages of the
impact
R if, in the even tofaside impact, on the side
opposite the impact the vehicle
decelerates or accelerates rapidly in a
lateral direction
R if, in certain situations where the vehicle
overturns, the system determines that it
can provide additional protection
If the ETDs are deployed, you will hear a bang,
and a small amount of powder may also be
released.O nly in rare cases will the bang
affect your hearing .The powder that is
released generally does not constitute a
health hazard. The 001FSRS warning lamp
lights up. Occupant safety
59Safety Z