2009 MERCEDES-BENZ GL SUV roof

reset sun roof CD player rims check engine light belt air condition

Page 188 of 309

MERCEDES-BENZ GL SUV 2009 Owners Manual Mercedes-Benz Service Centre for this pur-
pose. In particular, work relevant to safety or
on safety-related systems must be carried out
at a qualified specialist workshop.
The wheels could work loose

Mercedes-Benz Service Centre for this pur-
pose. In particular, work relevant to safety or
on safety-related systems must be carried out
at a qualified specialist workshop.
The wheels could work loose if they are not
tightened to a torque of 150 Nm.
For safety reasons, Mercedes-Benz recom-
mends that you only use wheel bolts of the
correct size which have been approved for
Mercedes-Benz vehicles.
The wear patterns on the front and rear tyres
differ, depending on the operating conditions.
Interchange the wheels before a clear wear
pattern has formed on the tyres. Front tyres
typically wear more on the shoulders and the
rear tyres in the centre.
On vehicles that have the same size front and
rear wheels you can interchange the wheels
every 5,000 km to 10,000 km depending on
the degree of tyre wear. Do not reverse the
direction of tyre rotation.
Clean the contact surfaces of the wheel and
the brake disc thoroughly every time a wheel
is interchanged. Check the tyre pressure and,
if necessary, restart the tyre pressure loss
warning system or the tyre pressure moni-
tor*.
! On vehicles fitted with a tyre pressure
monitor*, electronic components are loca-
ted in the wheel.
Tyre-fitting tools should not be applied in
the area of the valve, as this could damage
the electronic components.
Always have the wheels interchanged/
changed at a qualified specialist workshop,
e.g. a Mercedes-Benz Service Centre.
i Vehicles with a tyre pressure monitor*
If the positions of the wheels on the vehicle
are changed, the tyre pressure may be tem-
porarily displayed in the wrong position.
This is rectified after a few minutes of driv-
ing; the tyre pressures are then displayed
in the correct positions. Winter driving
Points to remember
Have your vehicle winterproofed at a qualified
specialist workshop, e.g. at a Mercedes-Benz
Service Centre, at the onset of winter.
Observe the notes in the "Changing a wheel"
section (Y page 184). Winter tyres
At temperatures below +7 ˚C always use all-
weather tyres or winter tyres and always use
winter tyres in winter road conditions. Only
winter tyres displaying the isnowflake
symbol in addition to the M+S marking pro-
vide optimum grip in wintry road conditions.
Only these tyres will allow the ABS and
ESP ®
driving systems to function optimally in
winter, as these tyres have been designed
specifically for driving in snow.
Use winter tyres of the same make and tread
on all wheels to maintain safe handling char-
acteristics. G
Risk of accident
Winter tyres with a tread depth of less than
4 mm must be replaced immediately. They are
no longer suitable for winter use and can no
longer provide sufficient grip. This could
cause you to lose control of your vehicle and
cause an accident.
Always observe the maximum permissible
speed specified for the winter tyres you have
fitted. If you fit winter tyres which have a
lower maximum permissible speed than that
of the vehicle, affix an appropriate warning
sign in the driver's field of vision. This can be
obtained at a qualified specialist workshop,
e.g. from a Mercedes-Benz Service Centre.
Under these circumstances, you should also
restrict the maximum speed of the vehicle
using permanent Speedtronic 27
to the maxi-
27 Only available for certain countries. Winter driving
185Operation
* optional
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Page 192 of 309

MERCEDES-BENZ GL SUV 2009 Owners Manual G
Risk of accident
Grains of sand, particles of dirt and other
abrasive materials can enter the brake sys-
tem. This can lead to excessive wear and
unpredictable braking efficiency.
After the brakes h

G
Risk of accident
Grains of sand, particles of dirt and other
abrasive materials can enter the brake sys-
tem. This can lead to excessive wear and
unpredictable braking efficiency.
After the brakes have been exposed to dirty
conditions, have them checked and cleaned
at a qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre. Otherwise,
there is a risk that braking power may be
insufficient in the event of an emergency, or
that braking efficiency may be unpredictable.
Read this section before driving your vehicle
off-road. Practise by travelling over more gen-
tle off-road terrain first.
The following driving systems are specially
adapted to off-road driving:
R LOW RANGE off-road gear (Y page 114)
R off-road ABS (Y page 50)
R off-road 4-ETS (Y page 53)
R off-road ESP ®
(Y page 52)
R differential locks (Y page 116)
R DSR (Downhill Speed Regulation)
(Y page 113) Off-road driving
G
Risk of accident
Damage to the vehicle creates the risk of an
accident for yourself and other road users. If
in doubt, have your vehicle checked at a quali-
fied specialist workshop which has the nec-
essary specialist knowledge and tools to carry
out the work required. Mercedes-Benz rec-
ommends that you use a Mercedes-Benz
Service Centre for this purpose. H
Environmental note
Protection of the environment is of primary
importance. Treat nature with respect.
Observe all prohibiting signs. General information R
Stop your vehicle and, if necessary, select
the LOW RANGE off-road gear
(Y page 114) before driving off-road.
R Select a vehicle level suitable for the off-
road terrain. Make sure there is always suf-
ficient ground clearance to prevent dam-
age to the vehicle.
R Check that items of luggage and loads are
stowed safely and are well secured
(Y page 156).
R Always keep the engine running and in gear
when driving on a downhill gradient. Acti-
vate DSR.
R Drive slowly and evenly, if necessary at a
walking pace.
R Ensure that the wheels are in contact with
the ground at all times.
R Drive with extreme care on unknown off-
road routes where visibility is poor. For
safety reasons, get out of the vehicle first
and survey the off-road route.
R Check the depth of water before fording
rivers and streams.
R Look out for obstacles such as rocks, holes,
tree stumps and furrows.
R Always keep the side windows and the slid-
ing /tilting sunroof* closed during the jour-
ney.
R Do not stray from marked routes or paths.
i Information about retrofitting special all-
terrain tyres is available from any
Mercedes-Benz Service Centre.
Checklist before driving off-road X
Engine oil level: check the engine oil and
top it up if necessary.
X Vehicle toolkit: check that the jack is
working and make sure you have the wheel-
brace, a robust tow cable and a folding
spade in the vehicle. Off-road driving
189Operation
* optional
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Page 279 of 309

MERCEDES-BENZ GL SUV 2009 Owners Manual Jump-start connection point
:
Earth point (negative terminal)
; Positive terminal (under the cover) Reconnecting the battery
! Always disconnect the battery in
the order described below. Never swap th

Jump-start connection point
:
Earth point (negative terminal)
; Positive terminal (under the cover) Reconnecting the battery
! Always disconnect the battery in
the order described below. Never swap the
battery terminals. You may otherwise dam-
age the vehicle electronics.
X Switch off all electrical consumers (e.g.
radio, blower, etc.).
X Connect the positive terminal clamp and
secure the cover.
X Connect the negative terminal clamp.
X Connect the breather hose.
i If the battery power supply has been inter-
rupted (e.g. if it has been reconnected), you
must carry out the following tasks:
R set the time (Y page 104).
On vehicles with COMAND and a naviga-
tion system*, the clock is set automati-
cally.
R reset the sliding/tilting sun-
roof* (Y page 151).
R reset the function for folding the exterior
mirrors in/out automatically* by folding
the mirrors out once (Y page 73)
R reset the side windows ( Ypage 86). Jump-starting
If your vehicle's battery is discharged, the
engine can be jump-started from another
vehicle or from an external battery using jump
leads.
Observe the following points:
R you may only jump-start when the engine
and catalytic converter are cold.
R do not start the engine if the battery is fro-
zen. Let the battery thaw first.
R jump-starting may only be performed from
batteries with a nominal voltage of 12 V.
R only use jump leads which have a sufficient
cross-section and insulated terminal
clamps.
i Jump leads and further information about
jump-starting can be obtained from any
Mercedes-Benz Service Centre.
! Avoid repeated and lengthy starting
attempts.
Do not use a rapid-charging device to start
the engine. G
Risk of injury
There is a risk of acid burns when jump-start-
ing a vehicle due to the gases which escape
from the battery. Do not lean over the battery
while the engine is being jump-started. G
Risk of explosion
Gases escaping from the battery during jump-
starting may cause minor explosions. Avoid
creating sparks. Keep naked flames away
from the battery, and do not smoke.
Comply with safety precautions and take pro-
tective measures when handling batteries.
You will find these under "Battery" in the
index.
X Make sure that the two vehicles do not
touch.
X Depress the parking brake firmly. 276
Jump-startingPractical advice
* optional
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Page 288 of 309

MERCEDES-BENZ GL SUV 2009 Owners Manual Retrofitting of two-way radios and
mobile phones (RF transmitter)
Use the Technical Specification
ISO/TS 21609 36
implementation regulation
when retrofitting RF (radio frequency) trans-
mitters.
If yo

Retrofitting of two-way radios and
mobile phones (RF transmitter)
Use the Technical Specification
ISO/TS 21609 36
implementation regulation
when retrofitting RF (radio frequency) trans-
mitters.
If your vehicle has fittings for two-way radio
equipment (e.g. taxis, hire cars or official vehi-
cles), use the power supply or aerial connec-
tions intended for use with the basic wiring.
Be sure to observe the manufacturer's addi-
tional instructions when installing the fittings.
! Damage resulting from installation work
that has not been carried out correctly is
not covered by the Mercedes-Benz implied
warranty.
To ensure correct installation, Mercedes-
Benz recommends having this work done
at a Mercedes-Benz Service Centre or at a
qualified specialist workshop.
Transmission output Transmission output at the aerial base must
not exceed the maximum values below. Waveband Maximum trans-
mission output
(PEAK)
Short wave
(f < 54 MHz) 100 W
4 m waveband 30 W
2 m waveband 50 W
Trunked radio/Tetra 35 W
70 cm waveband 35 W
GSM 900/AMPS 10 W
GSM 1800 10 W
UMTS 10 W Aerial positions
The following aerial positions may be used if
RF transmitters have been properly installed:
Aerial positions
:
Front roof area (vehicles with sliding/tilt-
ing sunroof*: observe the roof's sweep)
; Rear mudguard (recommended installa-
tion position: on the side which faces the
centre of the road) G
Risk of accident
Incorrect retrofitting of RF transmitters can
cause the vehicle electronics to malfunction,
impair the vehicle's operating safety and,
thus, also impair your own safety.
To ensure correct installation, Mercedes-
Benz recommends having this work done at a
Mercedes-Benz Service Centre or at a quali-
fied specialist workshop. G
Risk of injury
Improper installation of RF transmitters can
lead to increased electromagnetic radiation in
the vehicle interior. Using an exterior aerial
takes into account current scientific discus-
sions relating to the possible health hazards
that may result from electromagnetic fields.
To ensure correct installation, Mercedes-
Benz recommends having this work done at a
Mercedes-Benz Service Centre or at a quali-
fied specialist workshop.
36 ISO/TS 21609 – Technical Specification for Road Vehicles -- (EMC) guidelines for installation of aftermarket
radio frequency transmitting equipment. Vehicle electronics
285Technical data
* optional
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Page 295 of 309

MERCEDES-BENZ GL SUV 2009 Owners Manual Vehicle data, GL 450 4MATIC
Vehicle dimensions
Vehicle length
(ECE)
5099 mm
Vehicle width
including exterior
mirrors
2124 mm
Minimum vehicle
height
38 1840 mm
Maximum vehicle
height
38 1950 mm
Minimum

Page 296 of 309

MERCEDES-BENZ GL SUV 2009 Owners Manual Vehicle data, GL 350 CDI 4MATIC
BlueEFFICIENCY Vehicle dimensions
Vehicle length
(ECE) 5099 mm
Vehicle width
including exterior
mirrors
2124 mm
Minimum vehicle
height
40 1840 mm
Maximum vehicle
height

Page 297 of 309

MERCEDES-BENZ GL SUV 2009 Owners Manual Vehicle dimensions
Ground clearance
when the suspen-
sion is set to High-
way level
41 217 mm
Wheel base
3075 mm
Vehicle weights
Unladen weight
(in accordance
with EC directive)
2415 kg
The unladen we

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tire pressure reset wheel bolts headlamp gas type radio heating