2014 MERCEDES-BENZ GL airbag

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......................................................444
W
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...................431
Mounting 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...........................159
22Index

RDo not install additional trim material, seat
covers, badges, etc. to the:
-padded steering wheel boss
-knee bag covers
-front-passenger air bag cover
-outer side of front seat bolsters
-outer side of rear bench seat backrest
seat bolsters
-roof lining trim
RDo not install additional electrical/
electronic equipment on or near SRS
components and wiring.
RKeep area between air bags and occupants
free of objects (e.g. packages, purses,
umbrellas, etc.).
RDo not hang items such as coat hangers
from the coat hooks or handles over the
door. These items may be thrown around in
the vehicle and cause head and other
injuries when the window curtain air bag is
deployed.
RAir bag system components will be hot after
an air bag has inflated. Do not touch them.
RNever place your feet on the instrument
panel, dashboard, or on the seat. Always
keep both feet on the floor in front of the
seat.
RImproper repair work on the SRS creates a
risk of rendering the SRS inoperative or
causing unintended air bag deployment.
Work on the SRS must therefore only be
performed by qualified technicians.
Contact an authorized Mercedes-Benz
Center.
RFor your protection and the protection of
others, when scrapping the air bag unit or
ETD, our safety instructions must be
followed. These instructions are available
from any authorized Mercedes-Benz
Center.
RGiven the considerable deployment speed,
required inflation volume, and the material
of the air bags, there is the possibility of
abrasions or other, potentially more serious
injuries resulting from air bag deployment.
If you sell your vehicle, Mercedes-Benz
strongly recommends that you inform the
subsequent owner that the vehicle is
equipped with SRS. Also, refer them to the
applicable section in the Operator's Manual.
Air bags
Important safety notes
GWARNING
Using unsuitable seat covers could restrict or
even prevent deployment of the air bags
integrated into the seats. Consequently, the
air bags cannot protect vehicle occupants as
they are designed to do. In addition, the
function of the air bag deactivation system
could be restricted. This poses an increased
risk of injury or even fatal injury.
You should only use seat covers that have
been approved for the respective seat by
Mercedes-Benz.
GWARNING
The air bag parts are hot after the airbag has
been deployed. There is a risk of injury.
Do not touch the air bag parts. Have the
deployed air bags replaced at a qualified
specialist workshop as soon as possible.
GWARNING
Air bags are designed to reduce the incidence
of injuries and fatalities in certain situations:
Rfrontal impacts (driver's and front-
passenger front air bags and driver's knee
bag)
Rside impacts (side impact air bags and
window curtain air bags)
Rrollover (window curtain air bags)
However, no system available today can
completely eliminate injuries and fatalities.
When the air bags are deployed, a small
amount of powder is released. The powder
generally does not constitute a health hazard
and does not indicate that there is a fire in the
44Occupant safety
Safety

If the key is removed from the ignition lock or
is in position0, PASSENGER AIRBAG OFF
indicator lampCdoes 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.
PASSENGER AIRBAG OFF indicator lampC
shows you the current status. If PASSENGER
AIRBAG OFF indicator lampCis lit, the front-
passenger front air bag is disabled.
The system does not deactivate:
Rthe side impact air bag
Rthe window curtain air bag
Rthe ETDs
To be classified correctly, the front passenger
must sit:
Rwith the seat belt fastened correctly
Rin a position that is as upright as possible
with their back against the seat backrest
Rwith 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 PASSENGER AIR
BAG OFF indicator lamp as an indication of
whether or not the front passenger is
positioned correctly. Observe also the air bag
display messages that can be displayed in the
instrument cluster (Ypage 301).
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:
Ris empty or occupied by the weight of a
typical child up to twelve months old,
seated in a child restraint system.
Ris occupied by a small individual, such as a
young teenager or a small adult.
Ris 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
GWARNING
If thestindicator 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.
GWARNING
Objects between the seat surface and the
child restraint system could affect the
function of the OCS. This could result in the
front-passenger front air bag not functioning
as intended during an accident. This poses an
increased risk of injury or even fatal injury.
Do not place any objects between the seat
surface and the child restraint system. Make
sure that the bottom and back of the child
restraint system make full contact with the
front-passenger seat cushion and backrest.
Occupant safety51
Safety
Z

Display messagesPossible causes/consequences andPPSolutions
u
Front LeftFront Left
MalfunctionMalfunction
Service RequiredService Required
orFront RightFront Right
MalfunctionMalfunction
Service RequiredService Required
SRS has malfunctioned at the front on the left or right. Theu
warning lamp also lights up in the instrument cluster.
GWARNING
The air bags or Emergency Tensioning Devices may either be
triggered unintentionally or, in the event of an accident, may not
be triggered.
There is an increased risk of injury.
XVisit a qualified specialist workshop.
u
Rear LeftRear Left
MalfunctionMalfunction
Service RequiredService Required
orRear RightRear Right
MalfunctionMalfunction
Service RequiredService Required
SRS has malfunctioned at the rear on the left or right. Theu
warning lamp also lights up in the instrument cluster.
GWARNING
The air bags or Emergency Tensioning Devices may either be
triggered unintentionally or, in the event of an accident, may not
be triggered.
There is an increased risk of injury.
XVisit a qualified specialist workshop.
u
Rear CenterRear Center
MalfunctionMalfunction
Service RequiredService Required
SRS has malfunctioned at the rear center. Theuwarning lamp
also lights up in the instrument cluster.
GWARNING
The air bags or Emergency Tensioning Devices may either be
triggered unintentionally or, in the event of an accident, may not
be triggered.
There is an increased risk of injury.
XVisit a qualified specialist workshop.
u
Left Side CurtainLeft Side Curtain
AirbagAirbagMalfunctionMalfunction
Service RequiredService Required
orRight SideRight Side
Curtain AirbagCurtain Airbag
MalfunctionMalfunction
Service RequiredService Required
There is a malfunction in the left-hand or right-hand window
curtain air bag. Theuwarning lamp also lights up in the
instrument cluster.
GWARNING
The left or right window curtain air bag may either be triggered
unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
XVisit a qualified specialist workshop.
300Displaymessages
On-b oard computer and displays

Display messagesPossible causes/consequences andPPSolutions
Front PassengerFront Passenger
Airbag DisabledAirbag Disabled
See Operator'sSee Operator's
ManualManual
The front-passenger air bag is disabled during the journey, even
though:
Ran adult
or
Ra person larger than a certain size is occupying the front-
passenger seat
If additional forces are applied to the seat, the system may
interpret the occupant's weight as lower than it actually is.
GWARNING
The front-passenger air bag does not deploy during an accident.
There is an increased risk of injury.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 188).
XSwitch the ignition off.
XHave the occupant get out of the vehicle.
XKeep the seat unoccupied, close the front-passenger door and
switch on the ignition.
XObserve the PASSENGER AIR BAG OFF indicator lamp in the
center console and the multifunction display and check the
following:
Seat unoccupied and ignition switched on:
Rthe PASSENGER AIR BAG OFF indicator lamp must light up and
remain lit. If the indicator lamp is on, OCS has disabled the front-
passenger air bag (Ypage 49).
RtheFront Passenger Airbag Enabled See Operator'sFront Passenger Airbag Enabled See Operator's
ManualManualorFront Passenger Airbag Disabled SeeFront Passenger Airbag Disabled See
Operator's ManualOperator's Manualdisplay messages must not be shown in
the multifunction display.
XWait for a period of at least 60 seconds until the necessary
system checks have been completed.
XMake sure that the display messages do not appear in the
multifunction display.
If these conditions are fulfilled, the front-passenger seat can be
occupied again. Whether the PASSENGER AIR BAG OFF indicator
lamp remains lit or goes out depends on how OCS classifies the
occupant.
If the conditions are not fulfilled, the system is not operating
correctly.
XVisit a qualified specialist workshop immediately.
Displaymessages301
On-b oard computer and displays
Z

Display messagesPossible causes/consequences andPPSolutions
Front PassengerFront Passenger
Airbag EnabledAirbag Enabled
See Operator'sSee Operator's
ManualManual
The front-passenger air bag is enabled during the journey, even
though:
Ra child, a small adult or an object weighing less than the
system's weight threshold is located on the front-passenger
seat
or
Rthe front-passenger seat is unoccupied
The system may detect objects or forces applying additional
weight on the seat.
GWARNING
The air bag may deploy unintentionally.
There is an increased risk of injury.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 188).
XSwitch the ignition off.
XOpen the front-passenger door.
XRemove the child and the child restraint system from the front-
passenger seat.
XMake sure that there are no objects on the seat adding to the
weight.
The system may otherwise detect the additional weight and
interpret the seat occupant's weight as greater than it actually
is.
XKeep the seat unoccupied, close the front-passenger door and
switch on the ignition.
XObserve the PASSENGER AIR BAG OFF indicator lamp in the
center console and the multifunction display and check the
following:
Seat unoccupied and ignition switched on:
Rthe PASSENGER AIR BAG OFF indicator lamp must light up and
remain lit. When the indicator lamp is on, OCS (Occupant
Classification System) has disabled the front-passenger air bag
(Ypage 49).
RtheFront Passenger Airbag Enabled See Operator'sFront Passenger Airbag Enabled See Operator's
ManualManualorFront Passenger Airbag Disabled SeeFront Passenger Airbag Disabled See
Operator's ManualOperator's Manualdisplay messages must not be shown in
the multifunction display.
302Displaymessages
On-b oard computer and displays