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found on the reverse side of the remote
control).
The integrated garage door opener is
compatible with devices that can be
operated with units in a frequency range of
280 to 390 MHz.
R change the batteries in garage door remote
control A. This increases the probability
that garage door remote control A will
send a strong and precise signal to the
integrated garage door opener on the rear-
view mirror.
R when programming, hold garage door
remote control A at different distances
and angles from the transmitter button that
you are programming. Try different angles
at a distance between 2 and 12 inches (5
to 30 cm) or the same angle at varying
distances.
R if another remote control for the same
garage door drive is available, repeat the
same programming steps with this remote
control. Before you perform the steps of the
operation, make sure that there are new
batteries in the garage door remote
control.
R note that some remote controls only
transmit for a limited amount of time (the
indicator lamp on the remote control goes
out). Press the remote control button again
before it stops transmitting.
R align the antenna cable of the garage door
opener unit. This can improve signal
reception/transmission.
Opening/closing the garage door
Once programmed, the integrated garage
door opener will assume the function of the
garage door system's remote control. Please
also read the operating instructions for the
garage door system.
XTurn the SmartKey to position 2 in the
ignition lock.XPress transmitter button ;, = or ? in the
overhead control panel that you have
programmed to operate the garage door.
Garage door system with a fixed code:
indicator lamp : lights up green.
Garage door system with a rolling code:
indicator lamp : flashes green.
i
The transmitter will transmit a signal for
as long as the transmitter button is being
pressed. After a maximum of ten seconds,
transmission is terminated and indicator
lamp : flashes yellow. Press the
transmitter button again, if necessary.
Clearing the memory of the integrated
garage door opener on the rear-view
mirror
XTurn the SmartKey to position 2 in the
ignition lock.XPress transmitter buttons ; and ?.
The indicator lamp lights up yellow.XPress and hold transmitter buttons ;
and ? until the indicator lamp turns green.
i
Make sure that you clear the memory of
the integrated garage door opener before
selling the vehicle.
Compass
Calling up the compass
XPress the V or U button on the
multifunction steering wheel repeatedly
until the Offroad menu appears in the
multifunction display.
The compass shows which direction the
vehicle is currently traveling in: N, NE , E , SE ,
S , SW , W or NW.296FeaturesStowing and features

Benz. Contact an authorized Mercedes-
Benz Center for more information.
The battery and the cover of the positive
terminal clamp must be installed securely
during operation.
i Remove the SmartKey if you park the
vehicle and do not require any electrical
consumers. The vehicle will then use very
little energy, thus conserving battery
power.
Mercedes-Benz recommends that you do not
carry out work on batteries yourself, e.g.
removing or charging. Always have this work
performed at a qualified specialist workshop,
e.g. an authorized Mercedes-Benz Center.
i If the power supply has been interrupted,
e.g. if the battery has been reconnected,
you must carry out the following tasks:
R set the clock ( Y page 224).
On vehicles with COMAND and a
navigation system, the clock is set
automatically.
R reset the sliding sunroof ( Y page 94).
R reset the function for automatically
folding the exterior mirrors in/out by
folding the mirrors out once
( Y page 113).
R reset the side windows ( Y page 92).
Charging the battery
GWARNING
Never charge a battery still installed in the
vehicle unless a battery charger unit approved
by Mercedes-Benz is being used. Gases may
escape during charging and cause explosions
that may result in paint damage, corrosion or
personal injury.
A battery charger unit specially adapted for
Mercedes-Benz vehicles and tested and
approved by Mercedes-Benz is available as an
accessory. It permits the charging of the
battery in its installed position. Contact an
authorized Mercedes-Benz Center for further
information and availability.
Charge the battery in accordance with the
separate instructions for the battery charger.GWARNING
There is a risk of acid burns during the
charging process due to the gases which
escape from the battery. Do not lean over the
battery during the charging process.
GWARNING
Battery acid is caustic. Avoid contact with the
skin, eyes or clothing.
! Only charge the installed battery with a
battery charger which has been tested and
approved by Mercedes-Benz. These battery
chargers allow the battery to be charged
while still installed.
! Only use battery chargers with a
maximum charging voltage of 14.8 V.
! Only charge the battery using the jump-
starting connection point.
The jump-starting connection point is in the
engine compartment ( Y page 329).
XOpen the hood ( Y page 300).XConnect the battery charger to the positive
terminal and earth point in the same order
as when connecting the donor battery in
the jump-starting procedure
( Y page 329).XRead the battery charger's operating
instructions before charging the battery.328BatteryBreakdown assistance

Windshield/headlamp cleaning
systemGWARNING
Washer solvent/antifreeze is highly
flammable. Do not spill washer solvent/
antifreeze on hot engine parts, because it may
ignite and burn. You could be seriously
burned.
Use MB SummerFit windshield washer
concentrate at temperatures above freezing:
XMix 1 part MB SummerFit with 100 parts
water.
Use MB WinterFit windshield washer
concentrate at temperatures below freezing:
XAt temperatures down to 14 ‡(Ò 10 †): mix
1 part MB WinterFit with 2 parts water.XAt temperatures down to Ò 4 ‡( Ò 20 †): mix
1 part MB WinterFit with 1 part water.XAt temperatures down to
Ò 20.2 ‡(Ò 29 †): mix 2 parts MB WinterFit
with 1 part water.
! Only SummerFit and WinterFit can be
mixed. Otherwise, the jets could become
blocked.
Vehicle data
Vehicle data, GL 350 BlueTEC
The data stated here refers specifically to a
vehicle with standard equipment. Consult an
authorized Mercedes-Benz Center for the
data for all vehicle variants and trim levels.
Vehicle dimensions, GL 350 BlueTECVehicle length201.1 in (5108 mm)Vehicle width
including exterior
mirrors85.4 in (2170 mm)Vehicle height72.4 - 75.6 in (1840 -
1920 mm) 4972.4 - 76.8 in (1840 -
1950 mm) 50Wheelbase121.1 in (3075 mm)Front track64.8 in (1645 mm)Rear track65.0 in (1650 mm)Ground clearance8.0 - 10.9 in (202 -
277 mm) 498.0 - 12.1 in (202 -
307 mm) 50Turning circle39.7 ft (12.1 m)Vehicle weight, GL 350 BlueTECMaximum roof
loadMaximum 198 lb
(90 kg)
Vehicle data, GL 450
The data stated here refers specifically to a
vehicle with standard equipment. Consult an
authorized Mercedes-Benz Center for the
data for all vehicle variants and trim levels.
49 Vehicles without Off-road Pro engineering package: the values vary depending on the level set for the vehicle
suspension.
50 Vehicles with Off-road Pro engineering package: the values vary depending on the level set for the vehicle
suspension.Vehicle data377Technical dataZ

Vehicle dimensions, GL 450Vehicle length201.1 in (5108 mm)Vehicle width
including exterior
mirrors85.4 in (2170 mm)Vehicle height72.4 - 75.6 in (1840 -
1920 mm) 5172.4 - 76.8 in (1840 -
1950 mm) 52Wheelbase121.1 in (3075 mm)Front track64.8 in (1645 mm)Rear track65.0 in (1650 mm)Ground clearance8.0 - 10.9 in (202 -
277 mm) 518.0 - 12.1 in (202 -
307 mm) 52Turning circle39.7 ft (12.1 m)Vehicle weight, GL 450Maximum roof
loadMaximum 198 lb
(90 kg)
Vehicle data, GL 550
The data stated here refers specifically to a
vehicle with standard equipment. Consult an
authorized Mercedes-Benz Center for the
data for all vehicle variants and trim levels.
Vehicle dimensions, GL 550Vehicle length201.1 in (5108 mm)Vehicle width
including exterior
mirrors85.4 in (2170 mm)Vehicle height72.4 - 75.6 in (1840 -
1920 mm) 5372.4 - 76.8 in (1840 -
1950 mm) 54Wheelbase121.1 in (3075 mm)Front track66.3 in (1683 mm)Rear track66.5 in (1688 mm)Ground clearance8.0 - 10.9 in (202 -
277 mm) 538.0 - 12.1 in (202 -
307 mm) 54Turning circle39.7 ft (12.1 m)Vehicle weight, GL 550Maximum roof
loadMaximum 198 lb
(90 kg)51 Vehicles without Off-road Pro engineering package: the values vary depending on the level set for the vehicle
suspension.
52 Vehicles with Off-road Pro engineering package: the values vary depending on the level set for the vehicle
suspension.
53 Vehicles without Off-road Pro engineering package: the values vary depending on the level set for the vehicle
suspension.
54 Vehicles with Off-road Pro engineering package: the values vary depending on the level set for the vehicle
suspension.378Vehicle dataTechnical data