
1, 2, 3 ...
115 V socket...................................... 353
12 V socket
see Sockets
360° camera
Cleaning .........................................380
Function/notes.............................235
4ETS (Electronic Traction System)....72
4MATIC (permanent four-wheel
drive)..................................................256
A
ABS (Anti-lock Braking System)
Display message............................291
Function/notes ................................ 67
Important safety notes....................67
Warning lamp ................................. 327
Activating/deactivating cooling
with air dehumidification.................155
Active Blind Spot Assist
Activating/deactivating (on-
board computer)............................281
Display message............................314
Function/information....................247
Trailer towing.................................250
Active Curve System
Display message............................311
Function/notes.............................218
Active Driving Assistance package.247
Active Lane Keeping Assist
Activating/deactivating (on-
board computer)............................282
Display message............................313
Function/information....................251
Trailer towing.................................253
Active light function.........................133
Active Parking Assist
Display message............................314
Exiting a parking space..................229
Function/notes.............................226
Important safety notes..................226
Parking..........................................228
Towing a trailer..............................230
ADAPTIVE BRAKE................................. 75
Adaptive Brake Assist
Display message............................298
Function/notes ................................ 71
Adaptive Highbeam Assist
Display message............................306
Function/notes.............................134
Switching on/off...........................134
Additives (engine oil)........................450
ADS (Adaptive Damping System)
Function/notes.............................217
Air bags
Display message............................301
Front air bag (driver, front
passenger).......................................46
Important safety notes....................44
Knee bag .......................................... 47
PASSENGER AIR BAG OFF
indicator lamp..................................49
Safety guidelines.............................43
Side impact air bag..........................47
Window curtain air bag....................48
Air-conditioning system
see Climate control
Air filter (display message)..............309
AIR FLOW...........................................157
AIRMATIC package
ADS (Adaptive Damping System)...217
Function/notes.............................217
Level control..................................218
Air vents
Glove box .......................................163
Important safety notes..................162
Rear...............................................163
Setting...........................................162
Setting the center air vents...........162
Setting the side air vents...............163
Alarm
ATA (Anti-Theft Alarm system).........77
Switching off (ATA)..........................77
Switching the function on/off
(ATA)................................................77
Alarm system
see ATA (Anti-Theft Alarm system)
Ambient lighting
Setting the brightness (on-board
computer)......................................283
Setting the color (on-board
computer)......................................283
4Index

Symmetrical low beam..................128
Tire ruts.........................................199
Towing a trailer..............................264
Traveling uphill ............................... 200
Wet road surface...........................194
DSR (Downhill Speed Regulation)
Display message............................312
Function/notes.............................256
DVD audio
Operating (on-board computer).....278
DVD video
Operating (on-board computer).....279
E
EASY-ENTRY feature
Activating/deactivating.................285
Function/notes.............................121
EASY-EXIT feature
Crash-responsive...........................122
Function/notes.............................121
Switching on/off...........................285
EBD (electronic brake force
distribution)
Display message............................293
Function/notes ................................ 74
ECO display
Function/notes.............................192
On-board computer.......................276
Electronic Stability Program
see ESP®(Electronic Stability Program)
Emergency release
Driver's door....................................88
Vehicle.............................................88
Emergency spare wheel
General notes................................439
Important safety notes..................439
Removing.......................................440
Storage location............................440
Technical data...............................441
Emergency Tensioning Devices
Function ...........................................59
Safety guidelines.............................43
Emergency unlocking
Tailgate............................................93
Emissions control
Service and warranty information....24
Engine
Check Engine warning lamp ........... 333
Display message............................306
Engine number......................444, 445
Irregular running............................172
Jump-starting.................................395
Starting problems..........................172
Starting the engine with the
SmartKey.......................................169
Starting with KEYLESS-GO.............170
Switching off..................................189
Tow-starting (vehicle) ..................... 400
Engine electronics
Problem (malfunction)...................172
Engine jump starting
see Jump starting (engine)
Engine oil
Adding...........................................372
Additives........................................450
Checking the oil level ..................... 371
Checking the oil level using the
dipstick..........................................371
Display message............................308
Filling capacity...............................449
Notes about oil grades ................... 449
Notes on oil level/consumption....371
Temperature (on-board computer).287
Viscosity........................................450
ESP®(Electronic Stability
Program)
4ETS................................................72
AMG menu (on-board computer)...287
Characteristics ................................. 73
Deactivating/activating...................73
Display message............................291
Function/notes ................................ 72
General notes..................................72
Important safety information...........72
Trailer stabilization ........................... 74
Warning lamp ................................. 329
Exhaust check...................................192
Exhaust pipe (cleaning instructions)381
Exterior lighting
see Lights
Exterior mirrors
Adjusting.......................................122
Dipping (automatic).......................123
10Index

Sliding sunroof.................................99
Tailgate............................................89
Reversing lamps (display message)305
Roadside Assistance (breakdown)....25
Roller sunblind
Panorama roof with power tilt/
sliding panel..................................100
Rear side windows.........................351
Roof carrier........................................348
Roof lining and carpets (cleaning
guidelines).........................................383
Roof load (maximum)........................453
Route (navigation)
see Route guidance (navigation)
Route guidance (navigation)............277
S
Safety
Child restraint systems....................60
Occupant Classification System
(OCS)...............................................49
Safety system
see Driving safety systems
Seat belts
Adjusting the driver's and front-
passenger seat belt.........................57
Adjusting the height ......................... 58
Belt force limiters............................59
Cleaning ......................................... 383
Correct usage..................................55
Emergency Tensioning Devices ........59
Fastening.........................................57
Important safety guidelines.............55
Releasing.........................................58
Safety guidelines.............................43
Switching belt adjustment on/off
(on-board computer)......................285
Warning lamp ................................. 324
Warning lamp (function) ................... 58
Seats
Adjusting (electrically)...................108
Adjusting the head restraint..........108
Cleaning the cover.........................383
Correct driver's seat position........106
Entry position (3rd row of seats)....113
Exit position (3rd row of seats)......114
Folding down/up (third row of
seats) .............................................111
Folding the 2nd row of seats
forward electrically........................115
Folding the 2nd row of seats
forward manually...........................113
Folding the rear bench seat
forwards/back ............................... 344
Important safety notes..................107
Overview........................................107
Seat heating problem....................118
Seat ventilation problem................119
Storing settings (memory function) 125
Switching seat heating on/off.......116
Switching seat ventilation on/off..118
Selector lever
Cleaning ......................................... 382
Sensors (cleaning instructions).......380
Service menu (on-board computer).282
Service products
Brake fluid.....................................450
Coolant (engine)............................450
DEF special additives.....................448
Engine oil.......................................449
Fuel ................................................ 446
Important safety notes..................445
Refrigerant (air-conditioning
system)..........................................452
Washer fluid ...................................451
Settings
Factory (on-board computer).........286
On-board computer.......................282
Setting the air distribution...............158
Setting the airflow............................158
SETUP (on-board computer).............287
Side impact air bag.............................47
Side marker lamp (display
message)............................................ 305
Side windows
Cleaning ......................................... 379
Convenience closing feature............95
Convenience opening feature..........95
Hinged side windows.......................94
Important safety information...........93
Opening/closing..............................94
Overview..........................................93
Problem (malfunction).....................98
Resetting.........................................96
Index17

!Do not use the following:
Rmarine diesel
Rheating oil
Rbio-diesel
Rvegetable oil
Rgasoline
Rparaffin
Rkerosene
Do not mix such fuels with diesel fuel and
do not use any special additives. This can
otherwise lead to engine damage.
!Vehicles with diesel particle filters:in
countries outside the EU, only use low
sulfur Euro diesel with a sulfur content of
under 50 ppm. Otherwise, the emission
control system could be damaged.
!Vehicles without a diesel particle
filter:in countries where only diesel fuel
with a high sulfur content is available, you
will need to carry out your vehicle's oil
change at shorter intervals. Further
information on oil change intervals can be
obtained at a qualified specialist workshop.
You will usually find information about the fuel
grade on the pump. If you cannot find the
label on the pump, ask the staff for
assistance.
Information on refueling (Ypage 183).
Bio-diesel – FAME (fatty acid methyl ester)
Mercedes-Benz USA approves the use of bio-
diesel B5 for all BlueTEC diesel engines. The
concentration of bio-diesel in the ULSD may
not exceed 5% by volume.
Pure bio-diesel and diesel fuel with a higher
percentage of bio-diesel, such as B20, can
damage the engine and the fuel system. For
this reason, they are not approved.
For more information, consult the gas station
staff. The bio-diesel B5 label on the gasoline
pump must clearly state that the standard for
ULSD has been fulfilled. If the label is not
clear, do not refuel the vehicle.
Do not refuel your vehicle with fuels unless
they have been approved by Mercedes-Benz.
Information on refueling (Ypage 183).
Low outside temperatures
iDiesel fuel with improved cold flow
properties is available during the winter
months. Further information about fuel
properties can be obtained from oil
companies, e.g. at gas stations.
DEF
Important safety notes
Comply with the important safety notes for
service products when handling DEF
(Ypage 445).
DEF is a water-soluble fluid for the exhaust
gas aftertreatment of diesel engines. It is:
Rnot poisonous
Rcolorless and odorless
Rnot flammable
When you open the DEF container, small
amounts of ammonia vapor may be released.
Ammonia vapors have a pungent odor and are
particularly irritating to the skin, to mucous
membranes and to the eyes. You may
experience a burning sensation in your eyes,
nose and throat. Coughing and watering of
the eyes are possible.
Do not inhale ammonia vapors. Fill the DEF
tank only in well-ventilated areas.
Low outside temperatures
DEF freezes at a temperature of
approximately 12 ‡ (-11 †). The vehicle is
delivered from the factory equipped with a
DEF preheating system. Winter operation can
thus be guaranteed even at temperatures
below 12 ‡ (-11 †).
448Service products and filling capacities
Technical data

Additives
!Only use DEF in accordance with ISO
22241. Do not use additives with DEF and
do not dilute DEF with water. This may
destroy the BlueTEC exhaust gas
aftertreatment system.
Purity
!Impurities in DEF (e.g. due to other
service products, cleaning agents or dust)
lead to:
Rincreased emission values
Rdamage to the catalytic converter
Rengine damage
Rmalfunctions in the BlueTEC exhaust gas
aftertreatment system
Assuring the purity of DEF is particularly
important with respect to avoiding
malfunctions in the BlueTEC exhaust gas
aftertreatment system.
If DEF is pumped out of the DEF tank, e.g.
during repair work, it must not be returned to
the tank. The purity of the fluid can no longer
be guaranteed.
Filling capacities
ModelTotal capacity
GL 350 BlueTEC 4MATI
C
8.2 US gal
(31.2 l)
Engine oil
General notes
!Never use engine oil or an oil filter of a
specification other than is necessary to
fulfill the prescribed service intervals. Do
not change the engine oil or oil filter in
order to achieve longer replacement
intervals than those prescribed. You could
otherwise cause engine damage or damage
to the exhaust gas aftertreatment.
Follow the instructions in the service
interval display regarding the oil change.
Otherwise, you may damage the engine and
the exhaust gas aftertreatment.
When handling engine oil, observe the
important safety notes on service products
(Ypage 445).
The engine oils are matched to the
performance of Mercedes-Benz engines and
service intervals. You should therefore only
use engine oils and oil filters that are
approved for vehicles with maintenance
systems.
For a list of approved engine oils and oil filters,
consult an authorized Mercedes-Benz
Center. Or visit the website
http://bevo.mercedes-benz.com.
The table shows which engine oils have been
approved for your vehicle.
ModelEngine
model
MB
Approval
GL 450 4MATIC
GL 550 4MATIC
278229.5
AMG vehicles157229.5
GL 350 BlueTEC
4MATIC
642228.51,
229.31,
229.51
iMB approval is indicated on the oil
containers.
Filling capacities
The following values refer to an oil change
including the oil filter.
Service products and filling capacities449
Technical data
Z

ModelCapacity
GL 450 4MATIC
GL 550 4MATIC
9.0 US qt (8.5 l)
AMG vehiclesWithout external oil
cooler: 9.0 US qt
(8.5 l)
GL 350 BlueTEC 4
MATIC
8.5 US qt (8.0 l)
Additives
!Do not use any additives in the engine oil.
This could damage the engine.
Engine oil viscosity
Viscosity describes the flow characteristics
of a fluid. If an engine oil has a high viscosity,
this means that it is thick; a low viscosity
means that it is thin.
Select an engine oil with an SAE classification
(viscosity) suitable for the prevailing outside
temperatures. The table shows you which
SAE classifications are to be used. The low-
temperature characteristics of engine oils
can deteriorate significantly, e.g. as a result
of aging, soot and fuel deposits. It is therefore
strongly recommended that you carry out
regular oil changes using an approved engine
oil with the appropriate SAE classification.
Brake fluid
GWARNING
The brake fluid constantly absorbs moisture
from the air. This lowers the boiling point of
the brake fluid. If the boiling point of the brake
fluid is too low, vapor pockets may form in the
brake system when the brakes are applied
hard. This would impair braking efficiency.
There is a risk of an accident.
You should have the brake fluid renewed at
the specified intervals.
Comply with the important safety notes for
service products when handling brake fluid
(Ypage 445).
The brake fluid change intervals can be found
in the Maintenance Booklet.
Only use brake fluid approved by Mercedes-
Benz according to MB Approval 331.0.
Information about approved brake fluid can
be obtained at any qualified specialist
workshop or on the Internet at
http://bevo.mercedes-benz.com.
iHave the brake fluid regularly replaced at
a qualified specialist workshop and the
replacement confirmed in the Maintenance
Booklet.
Coolant
Important safety notes
GWARNING
If antifreeze comes into contact with hot
components in the engine compartment, it
may ignite. There is a risk of fire and injury.
Let the engine cool down before you add
antifreeze. Make sure that antifreeze is not
spilled next to the filler neck. Thoroughly
clean the antifreeze from components before
starting the engine.
!Only add coolant that has been premixed
with the desired antifreeze protection. You
could otherwise damage the engine.
450Service products and filling capacities
Technical data