Central lockingAutomatic locking (on-board
computer) ...................................... 224
SmartKey ......................................... 72
Changing bulbs
Headlamps ..................................... 120
Changing gears .................................. 154
Changing the programming SmartKey ......................................... 75
Checklist
After driving off-road ...................... 175
Before driving off-road ...................175
Child-proof locks
Rear doors ....................................... 64
Special seat belt retractor ...............61
Children
In the vehicle ................................... 59
Restraint systems ............................ 59
Child seat
Automatic recognition .....................48
Automatic recognition/air bag
deactivation, self-test ......................50
ISOFIX (LATCH-type child seat
anchors) ........................................... 62
Special seat belt retractor ...............61
Top Tether ....................................... 62
Troubleshooting ............................... 51
Cigarette lighter ................................ 280
Climate control Activating/deactivating .................136
Activating/deactivating air-
recirculation mode .........................141
Controlling automatically ...............138
Cooling with air dehumidification ..137
Defrosting the windshield ..............140
Demisting the windows .................. 141
Dual-zone automatic climate
control ........................................... 131
Important safety information .........130
Indicator lamp ................................ 138
Multi-zone automatic climate
control ........................................... 132
Problems with "cooling with air
dehumidification" ........................... 138
Problems with the rear window
heating .......................................... 141
Rear control panel .................133, 136
Refrigerant ..................................... 369Setting the air distribution .............140
Setting the airflow .........................140
Setting the air vents ......................143
Setting the temperature ................139
Setting the temperature (rear
compartment) ................................ 139
Switching the MONO function on/
off .................................................. 140
Switching the rear window
heating on/off ............................... 141
Switching the residual heat
function on/off .............................. 142
Clock (on-board computer) ............... 222
Cockpit ................................................. 27
Combination switch .......................... 117
Compass ............................................ 291
Calling up ....................................... 291
Consumption statistics (on-board
computer) .......................................... 227
Convenience closing feature .............. 87
Convenience opening feature ............ 86
Coolant (engine) Checking the level .........................297
Display message ............................ 240
Notes ............................................. 369
Temperature gauge ........................ 218
Cooling
see Climate control
Cornering light (display message) ... 237
Crash-responsive emergency
lighting ............................................... 119
Crossbar Installing ........................................ 274
Setting the span width ...................276
Cross bar ............................................ 273
Cruise control .................................... 179
Cruise control lever .......................179
Display message ............................ 246
Cup holder ......................................... 277
Center console .............................. 277
Rear compartment .........................278
third row of seats ........................... 278
Current fuel consumption (on-
board computer) ............................... 227
Customer Assistance Center (CAC) ............................................... 22
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OCSFaults ............................................... 47
Operation ......................................... 42
System self-test ............................... 46
Octane number (fuel) ........................ 366
Odometer ........................................... 218
Off-road 4MATIC .......................................... 202
Differential locks ............................ 207
DSR ............................................... 203
LOW RANGE off-road gear .....158, 205
Off-road 4ETS .................................. 67
Off-road ABS .................................... 66
Off-road drive program ..................204
Off-road drive program ..................... 204
Off-road driving ................................. 174
Important safety instructions ......... 173
Off-road fording ................................. 171
Off-road terrain Off-road ESP .................................... 68
Oil
see Engine oil
On-board computer
Additional functions menu .............226
Audio menu ................................... 219
Convenience submenu ..................225
Displaying a service message ........299
Displaying the coolant
temperature ................................... 218
Displaying the outside
temperature ................................... 218
Display messages ..........................229
DISTRONIC menu .......................... 186
Factory settings ............................. 221
Important safety notes ..................214
Instrument cluster submenu ..........221
Lighting submenu .......................... 223
Message memory menu ................. 229
Navigation menu ............................ 220
Off-road menu ............................... 220
Operating video DVD .....................220
Operation ....................................... 215
Overview of menus ........................217
Selecting the language ..................222
Settings menu ............................... 221
Standard display menu ..................218
Telephone menu ............................ 227
Time/Date submenu .....................222Trip computer menu ......................227
Vehicle submenu ........................... 224
Opening and closing the side trim
panels ................................................. 123
Operating system see On-board computer
Outside temperature
Calling up (on-board computer) .....218
Display ........................................... 214
Overhead control panel
Overview .......................................... 33
Override feature
Rear side windows ...........................64
P
Paint code number ............................ 363
Paintwork (cleaning instructions) ... 301
Panel Removing (third row of seats) ........101
Panic alarm .......................................... 64
Parking ............................................... 165
Parking aid PARKTRONIC ................................. 195
Rear view camera .......................... 198
Parking brake .................................... 166
Parking lamp (display message) ...... 239
Parking position Exterior mirror on the front-
passenger side ............................... 109
PARKTRONIC ...................................... 195
Activating/deactivating .................197
Malfunction .................................... 198
Problem ......................................... 198
Range of the sensors .....................195
Trailer towing ................................. 197
Warning display ............................. 196
PASSENGER AIRBAG OFF indicator
lamp (only Canada) ............................. 48
PASSENGER AIRBAG OFF indicator
lamp (only USA) ................................... 42
Pedals ................................................. 167
Permanent four-wheel drive see 4MATIC
Plastic trim (cleaning instructions) . 304
Power supply (trailer) ....................... 212
Power washers .................................. 301
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Emergency Tensioning Devices ........ 57
Fastening ......................................... 55
Important safety guidelines .............53
Releasing ......................................... 57
Safety guidelines ............................. 37
Switching belt adjustment on/off
(on-board computer) ......................225
Warning lamp ................................. 255
Warning lamp (function) ................... 57
Seat heating
Indicator lamp (Malfunction) ..........105
Seats
Adjusting (electrically) .....................96
Adjusting (second and third rows) . 100
Adjusting the 4-way lumbar
support .......................................... 104
Adjusting the head restraint ............97
Cleaning the cover .........................304
Correct driver's seat position ........... 94
Important safety instructions ...........95
Multicontour seat .......................... 103
Storing settings (memory
function) ........................................ 110
Switching seat heating on/off .......104
Switching the seat ventilation on/
off .................................................. 105
Seat ventilation
Indicator lamp (Malfunction) ..........105
Securing hooks .................................. 268
Sensors (cleaning instructions) ....... 303
Service indicator see Service interval display
Service interval display .................... 298
Displaying a service message (on-
board computer) ............................ 299
Service products
AdBlue ®
special additives ..............367
Brake fluid ..................................... 369
Coolant (engine) ............................ 369
Engine oil ....................................... 368
Filling capacity ............................... 365
Fuel ................................................ 366
Important safety notes ..................364
Notes ............................................. 364
Refrigerant (air-conditioning
system) .......................................... 369
Washer fluid ................................... 370Settings
Factory (on-board computer) .........221
On-board computer .......................221
Shift ranges ....................................... 155
Side impact air bag ............................. 41
Side marker lamp (display
message) ............................................ 239
Side windows Convenience closing feature ............87
Convenience opening feature ..........86
Hinged side windows .......................86
Important safety information ...........84
Opening/closing .............................. 85
Resetting ......................................... 87
Troubleshooting ............................... 88
Sliding sunroof
Important safety information ...........88
Troubleshooting ............................... 90
see Tilt/sliding sunroof
SmartKey
Changing the battery .......................76
Changing the programming .............75
Checking the battery .......................76
Important safety notes ....................72
Malfunction ...................................... 77
Snow chains ...................................... 172
Socket ................................................ 281
Dashboard ..................................... 281
Front-passenger footwell ...............281
Luggage compartment ...................281
Rear compartment .........................281
SOS
see mbrace
Spare wheel
Notes/data .................................... 359
Storage location ............................ 311
see Emergency spare wheel
Speedometer
Additional speedometer (on-
board computer) ............................ 218
Segments ...................................... 215
Setting the unit (on-board
computer) ...................................... 221
SRS (Supplemental Restraint
System) Display message ............................ 231
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Warning lamp ................................. 258
Warning lamp (function) ................... 36
Standard display (on-board
computer) .......................................... 218
Starting the engine Important safety instructions ......... 148
Station
see Radio
Status line (on-board computer)
Multifunction display .....................216
Selecting the display ...................... 222
Steering (display message) .............. 251
Steering wheel Adjusting (electrically) ...................106
Adjusting (manually) ......................106
Buttons (on-board computer) ......... 215
Cleaning ......................................... 304
Important safety instructions ......... 105
Memory function (storing
settings) ......................................... 106
Steering wheel heating ..................106
Storing settings (memory
function) ........................................ 110
Steering wheel heating
Indicator lamp (Malfunction) ..........107
Steering wheel paddle shifters ........ 155
Stowage compartments Armrest (under) ............................. 265
Glove box ....................................... 265
Stowage space
Center console .............................. 265
Center console (rear) .....................266
Cup holders ................................... 277
Important safety information .........264
Submenu (on-board computer)
Convenience .................................. 225
Instrument cluster .........................221
Lighting .......................................... 223
Time/Date ..................................... 222
Vehicle ........................................... 224
Summer opening
see Convenience opening feature
Sun visor ............................................ 278
Supplemental Restraint System see SRS
Surround lighting (on-board
computer) .......................................... 223SUV
(Sport Utility Vehicle) .......................21
Switching off the alarm (ATA) ............ 69
T
Tachometer ........................................ 214
Tailgate Display message ............................ 251
Important safety guidelines .............80
Limiting the opening angle ...............84
Taillight
see Tail lamps
Tank contents
Gauge .............................................. 28
Technical data ................................... 362
GL 350 BlueTEC ............................. 370
GL 450 ........................................... 371
GL 550 ........................................... 371
Tires/wheels ................................. 357
TELEAID
Call priority .................................... 287
Display message ............................ 231
Downloading destinations
(COMAND) ..................................... 287
Emergency call .............................. 284
Important safety notes ..................283
Locating a stolen vehicle ...............288
MB info call button ........................286
Roadside Assistance button ..........285
Self-test ......................................... 283
System .......................................... 283
Vehicle remote unlocking ..............287
Telephone
Accepting a call ............................. 228
Display message ............................ 252
Menu (on-board computer) ............227
Number from the phone book ........ 228
Redialing ........................................ 228
Rejecting/ending a call .................228
Telephone compartment .................. 265
Telescopic rod (EASY-PACK load-
securing kit) ....................................... 272
Temperature Coolant (on-board computer) ......... 218
Displaying the outside
temperature ................................... 218
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Exterior viewFunctionPage:Tailgate80Vehicle tool kit310;Rear window heating141=Lights120?Fuel filler flap159AExterior mirrors108BRoof carrier273Sliding sunroof88CDefrosting the windshield140Cleaning the windows302FunctionPageDWindshield wipers125EOpening the hood294Engine oil295Coolant297FTowing away327GTires and wheels334Flat tire31126Exterior viewAt a glance
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Activating/deactivating the rear-
compartment climate control using the
front control panel (dual-zone
automatic climate control)XTurn the key to position 2 in the ignition
lock.XTo activate/deactivate: press the ±
button ( Y page 131).
The indicator lamp in the ± button lights
up or goes out.
Activating/deactivating the rear-
compartment climate control using the
front control panel (multi-zone
automatic climate control)
For USA only:
XTurn the key to position 2 in the ignition
lock.XTo activate/deactivate: press the ±
button ( Y page 132).
The indicator lamp in the ± button lights
up or goes out.
For Canada only:
XTurn the key to position 2 in the ignition
lock.XTo activate: press the Y button
( Y page 132).
ON and MODE are shown in the multi-zone
automatic climate control display behind
the Y symbol. The MODE display goes
out after three seconds. The display
switches back to the standard display.XTo deactivate: press the Y button
( Y page 132).
MODE is shown in the display behind the
Y symbol.XPress the ^ button ( Y page 132).
OFF is shown in the display behind the
Y symbol.Activating/deactivating the rear-
compartment climate control using the
rear control panel (multi-zone
automatic climate control) XTurn the key to position 2 in the ignition
lock.XActivate multi-zone automatic climate
control with the front control panel.XTo activate: press the à button.
The indicator lamp in the à button lights
up.XTo deactivate: press the ^ button.
The indicator lamp in the ^ button lights
up.
Switching cooling with air
dehumidification on/off
Important information
The cooling with air dehumidification function
is only available when the engine is running.
The air inside the vehicle is cooled and
dehumidified according to the temperature
selected.
GWarning
If you switch off the cooling function, the
vehicle will not be cooled when weather
conditions are warm. The windows can fog up
more quickly. Window fogging may impair
visibility and endanger you and others.
Condensation may drip from the underside of
the vehicle when automatic climate control is
in cooling mode. This is normal and not a sign
that there is a malfunction.
i The cooling with air dehumidification
function uses refrigerant R134a. This
coolant does not contain
chlorofluorocarbons, and therefore does
not damage the ozone layer.
Operating the control systems137Climate controlBA 164.8 USA, CA Edition B 2011; 1; 2, en-USd2sboikeVersion: 3.0.3.52010-04-21T15:08:44+02:00 - Seite 137Z
XTurn the SmartKey to position 2 in the
ignition lock.XTo activate: press the d button.
The indicator lamp in the d button lights
up.
i Air-recirculation mode is activated
automatically at high outside
temperatures. When air-recirculation mode
is activated automatically, the indicator
lamp in the d button is not lit.
Outside air is added after about 30
minutes.
XTo deactivate: press the d button.
The indicator lamp in the d button goes
out.
i Air-recirculation mode switches off
automatically:
R after approximately five minutes if
outside temperatures are under about
41 ‡ (5 †)
R after approximately five minutes if
cooling with air dehumidification is
deactivated
R after approximately 30 minutes if outside
temperatures are over about
41 ‡ (5 †)
i The air-recirculation mode does not
switch off automatically if outside
temperatures exceed 79 ‡ (26 †). After
about 30 minutes, outside air will be
added. 22
Switching the residual heat on/off
It is possible to make use of the residual heat
of the engine to continue heating the
stationary vehicle for up to 30 minutes after
the engine has been switched off. The heating
time depends on the temperature that has
been set.
i The blower will run at a low speed
regardless of the airflow setting.
i If you activate the "residual heat" function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed.XTurn the SmartKey to position 0 in the
ignition lock or remove it.XTo switch on: press the Á button.
The indicator lamp in the Á button lights
up.XTo switch off: press the Á button.
The indicator lamp in the Á button goes
out.
i Residual heat is deactivated
automatically:
R after about 30 minutes
R when the ignition is switched on
R if the battery voltage drops
R if the coolant temperature is too low
Setting the air vents
Important safety notes
GWarning
When operating the climate control, the air
that enters the passenger compartment
through the air vents can be very hot or very
cold (depending on the set temperature). This
could cause burns or frostbite to unprotected
skin in the immediate area of the air vents.
Always keep sufficient distance between
unprotected parts of the body and the air
vents. If necessary, use the air distribution
adjustment to direct the air to air vents in the
vehicle interior that are not in the immediate
area of unprotected skin.
22 Vehicles with multi-zone automatic climate control.142Setting the air ventsClimate control
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ProblemPossible causes/consequences and M SolutionsVehicles with a
gasoline engine:
The engine is not
running smoothly and
is misfiring.There is a malfunction in the engine electronics or a mechanical
component of the engine management system.XOnly depress the accelerator pedal slightly.XHave the cause rectified immediately at a qualified specialist
workshop.
Otherwise, non-combusted fuel may get into the catalytic
converter and damage it.The coolant
temperature gauge
shows a value above
248 ‡(120 †).The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.XStop as soon as possible and allow the engine and the coolant
to cool down.XCheck the coolant level ( Y page 297). Observe the warning
notes as you do so and add coolant if necessary.Automatic transmission
Important safety notes
GWarning
It is dangerous to shift the automatic
transmission out of parking position P or
neutral position N if the engine speed is
higher than idle speed. If your foot is not firmly
on the brake pedal, the vehicle could
accelerate quickly forward or in reverse. You
could lose control of the vehicle and hit
someone or something. Only shift into gear
when the engine is idling normally and when
your right foot is firmly on the brake pedal.
GWarning!
Keep in mind that turning off the engine alone
only will shift the automatic transmission into
neutral position N automatically.
Always shift the automatic transmission into
park position P before turning off the engine.
Otherwise the vehicle could roll away which
could result in an accident and/or serious
personal injury.
DIRECT SELECT lever
Overview of transmission positions
The DIRECT SELECT lever is on the right of the
steering column.
PPark position with parking lockRReverseNNeutralDDrive
i The DIRECT SELECT lever always returns
to its original position. The current
transmission position P, R , N or D appears
in the transmission position display
( Y page 153) in the multifunction display.
152Automatic transmissionDriving and parking
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