roof MERCEDES-BENZ G-CLASS SUV 2012 Owner's Manual

R
Chec kthat items of luggage and loads are
stowed safely and are well secured
(Y page 271).
R To avoid damaging the vehicle, make sure
there is always sufficient ground clearance.
R Always keep the engine running and in gear
when driving on a downhill gradient.
R Always keep the engine running and in gear
when driving on a slope.
R Drive slowly and evenly, if necessary at
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 When fording, do not stop and do not
switch off the engine.
R Look out for obstacles such as rocks, holes,
tree stumps and furrows.
R Always keep the doors, the rear door or
tailgate (G-Class Cabriolet), the side win-
dows and the sliding sunroof closed while
the vehicle is in motion.
R Switch off cruise control and variable
SPEEDTRONIC.
R Do not stray from marked routes or paths.
R Adapt your speed to the terrain. The
rougher, steeper or more ruts on the ter-
rain, the slower your speed should be.
R Drive slowly and at a constant speed
through the water. Ensure that a bow wave
does not form as you drive.
R On sand, drive quickly to overcome the roll-
ing resistance. Otherwise, the vehicle could
dig itself into the sand.
R Do not jump with the vehicle as this will
interrupt the vehicle's propulsion. R
Avoid high engine speeds. Drive at appro-
priate engine speeds.
R Always check the vehicle for damage after
off-road driving.
i Information about retrofitting special all-
terrain tyres is available from any qualified
specialist workshop.
i Do not use the HOLD function when driv-
ing off-road, on steep uphill or downhill gra-
dients or on slippery or loose surfaces. The
HOLD function cannot hold the vehicle on
such surfaces.
Checklist before driving off-road !
If the engine oil warning lamp lights up
during the journey, stop the vehicle in a
safe place as soon as is possible. Check the
engine oil level. The warning given by the
engine oil warning light must not be
ignored. Continuing your journey when the
symbol is shown may result in engine dam-
age.
X Engine oil level: check the engine oil and
top it up if necessary.
Only then does the engine receive enough
oil when the vehicle is standing on a steep
incline.
X G3 50 BlueTEC: have the AdBlue ®
level
checked at a qualified specialist workshop
(Y page 160).
X Tyre-change tool kit: check that the jack
is working and make sure you have the
wheelbrace, a robust tow cable and a fold-
ing spade in the vehicle.
X Wheels and tyres: check the tyre tread
depth and tyre pressure.
X Check for damage and remove any foreign
objects, e.g. small stones, from the
wheels/tyres.
X Replace any missing valve caps.
X Replace dented or damaged wheels.
X Carry a sound spare wheel. 170
Driving tipsDriving and parking

Warning displays
Warning display for the front area
:
Segments on the left-hand side of the
vehicle
; Segments on the right-hand side of the
vehicle
= Segments showing operational readiness
The warning displays show the distance
between the sensors and the obstacle. The
warning display for the front area is located
on the dashboard above the centre airv ents.
The warning display for the rear area is loca-
ted on the roof lining in the rear compart-
ment.
The warning display for each side of the vehi-
cle is divided into five yellow and two red seg-
ments. PARKTRONIC is operational if yellow
segments showing operational readiness =
light up.
The selected transmission position and the
direction in which the vehicle is rolling deter-
mine which warning display is active when the
engine is running. Transmission
position Warning display
D
Front area activated
R,
Nor the vehicle
is rolling back-
wards Rear and front areas
activated
P
No areas activated One or more segments light up as the vehicle
approaches an obstacle, depending on the
vehicle's distance from the obstacle.
From the:
R
sixth segmen tonwards, you will hea ran
intermittent warning ton efor approx-
imately two seconds.
R seventh segment onwards, you will hear a
warning tone for approximately two sec-
onds. This indicates that you have now
reached the minimum distance.
Deactivating/activating PARKTRONIC :
Indicator lamp
; To deactivate/activate PARKTRONIC
If indicator lamp :lights up, PARKTRONIC is
deactivated.
i PARKTRONIC is automatically activated
when you turn the key to position 2in the
ignition lock.
Towing atrailer PARKTRONIC is deactivated for the rea
rarea
when you establish an electrical connection
between yourv ehicle and a trailer. Driving systems
199Driving and parking Z

Roof carrier
G
WARNING
An incorrectl ysecured roof carrier, ski rack or
load could become detached from the vehi-
cle. These objects may then be thrown around
and can injure you or others or cause an acci-
dent. Follow the roof carrier/ski rack manu-
facturer's installation instructions and special
instructions for use.
The roof load raises the vehicle's centre of
gravity, thereby affecting vehicle handling.
Always observe the maximum roof load (see
the "Technical data" section). Always adapt
your driving style to the prevailing road, traffic
and weather conditions and drive with partic-
ular care if the roof is laden.
! Mercedes-Benz recommends that you
only use roof carriers that have been tested
and approved for Mercedes-Benz vehicles.
This helps to preven tdamage to the vehi-
cle.
Positio nthe load on the roof carrier in such
a way that the vehicle will not sustain dam-
age even when it is in motion.
Make sure that the sliding sunroof can be
fully raised, depending on the vehicle's
equipment.
X Follow the manufacturer’s installation
instructions when fitting the roof carrier. Features
Cup holders
Important safety notes G
WARNING
If you are transporting objects in the stowage
compartments, the stowage compartments
must remain closed while the vehicle is in
motion. Otherwise, vehicle occupants could
be injured by objects being thrown around if
you: R
brake sharply
R change direction suddenly
R are involved in an accident
Only use the cup holders for containers of a
suitable size and which have lids. The drinks
could otherwise spill.
Cup holders should not be used for hot drinks.
You may otherwise scald yourself.
Cup holders in the glove compartment X
To open: fold down the glove compartment
cover.
i Locking/unlocking the glove compart-
ment (Y page 267).
Cup holder on the centre console X
Fold cup holder :all the way up.
Cup holders in the rear compartment !
Make sure that you remove any contain-
ers from the rear-compartment cup holders Features
275Stowing and features Z

after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosio
nofthe brake discs and
brake pads/linings. For this reason, you
should drive for a few minutes after clean-
ing. Braking heats the brake discs and the
brake pads/linings, thus drying them. The
vehicle can then be parked up. Care of the exterior
Automatic car wash G
WARNING
Braking efficiency is reduced after washing
the vehicle. This could cause an accident. For
this reason, following a car wash, drive with
particular care until the brakes are dry.
! Preferably use car washes with adjustable
high-pressure jets for pre-washing. This
corresponds with the specifications for
cabriolet programmes. In car washes that
use high water pressures, there is a risk
that a small amount of water may leak into
the vehicle.
! Cabriolet: do not treat the vehicle with
hot wax under any circumstances.
! Make sure that the automatic car wash is
suitable for the size of the vehicle. Fold in
the exterior mirrors before the vehicle is
washed. The exterior mirrors could other-
wise be damaged.
! Make sure that the automatic transmis-
sion is in position Nwhen washing your
vehicle in a tow-through car wash. The vehi-
cle could be damaged if the transmission is
in another position.
! Make sure that:
R the side windows and sliding sunroof are
closed completely.
R the blower for the ventilation/heating is
switched off (airflow control is turned to position
0/theÃandÁ buttons
are switched off).
R the windscreen wiper switch is at posi-
tion 0.
The vehicle could otherwise be damaged.
You can wash the vehicle in an automatic car
wash from the very start.
Wash off excess dirt before cleaning the vehi-
cle in an automatic car wash.
After using an automatic car wash, wipe off
wax from the windscreen and the wiper
blades. This will prevent smears and reduce
wiping noises caused by residue on the wind-
screen.
High-pressure cleaning equipment G
WARNING
Do not use high-pressure cleaners with circu-
lar-jet nozzles (dirt grinders) to clean your
vehicle, in particular the tyres. You could oth-
erwise damage the tyres and cause an acci-
dent.
! Always maintain a distance of at least
30 cm between the vehicle and the high-
pressure cleaner nozzle. Information about
the correct distance is available from the
equipment manufacturer.
Move the high-pressure cleaner nozzle
around when cleaning your vehicle.
Do not aim directly at any of the following:
R tyres
R door gaps, roof gaps, joints etc.
R soft top (Cabriolet)
R electrical components
R battery
R connectors
R lights
R seals
R trim elements
R ventilation slots
Damaged seals or electrical components
can lead to leaks or failures. 296
CareMaintenance and care

Fire extinguisher
=is located in the stowage
compartment under the driver's seat.
X Pull handle :upwards.
X Pull the catch of cover ;forwards in the
directio nofthe arrow.
X Remove fire extinguisher =from the stow-
age compartment.
i Have fire extinguisher =refilled after
each use and checked every one to two
years. It may otherwise fail in an emer-
gency.
Observe the legal requirements for each
individual country. Vehicle tool kit
General notes The vehicle tool kit contains:
R
vehicle tool kit with:
-fuse extractor
- Allen key, e.g. to operate the sliding roof
manually in an emergency
- pump lever for vehicle jack
- screwdriver
- wheel wrench
R jack
Vehicle tool kit G-Class long-wheelbase version
The vehicle tool kit is located under the cover
in the footwell in front of the rear bench seat.
X
Fold cover :to the side.
X Pull vehicle tool kit ;out by the tab.
G-Class Cabriolet 306
Where will I find...?Breakdown assistance

Regular checking of wheels and tyres
R Regularly check the wheels and tyres of
your vehicle for damage at leas tevery 14
days, as well as after driving off-road or on
rough roads. Damage includes cuts, punc-
tures, cracks and bulges on tyres or severe
corrosio nordeformation on wheels, for
example. Damaged wheels can cause a
loss of tyre pressure.
R Regularly chec kthe tyre tread depth and
the condition of the tread across the whole
width of the tyre (Y page 323). In order to
inspect the inner side of the tyre surface,
turn the steering wheel to full lock.
R All wheels must have a valve cap to protect
the valve against dirt and moisture. Do not
fit anything onto the valve other than the
standard valve cap or avalve cap approved
by Mercedes-Ben zfor your vehicle.
Do not fit anything onto the valve, such as
tyre pressure monitoring systems.
R You should regularly check the pressure of
all your tyres including the spare wheel,
particularly prior to long trips. Adjust the
tyre pressure as necessary (Y page 328).
The service life of tyres depends on various
factors, including the following:
R driving style
R tyre pressure
R tyre mileage Tyre tread
G
WARNING
Please keep in mind that:
R tyre grip decreases rapidly on wet roads
when the tread depth is less than 3mm.
Thus, you should replace tyres that have
insufficient tread.
R winter tyres should be replaced when the
tread depth is 4mmorless, as they no lon-
ger provide adequate grip.
R the tread on a tyre may not wear evenly.
Thus, you should regularly check the tread depth and the condition of the tread across
the entire width of all tyres. If necessary,
turn the fron
twheels to full lock in order to
inspect the tyre tread more easily.
Otherwise, you could lose control of the vehi-
cle and cause an accident due to the reduced
grip of the tyres on the road. Selecting, fitting and replacing tyres
R Only fit tyres and wheels of the same type
and make.
R Only fit approved tyres of the correct size
onto the wheels.
R Tyres are supplied with a protective layer
from the factory. Run in new tyres at mod-
erate speeds for the first 100 km. They only
reach their full performance after this dis-
tance.
R Do not drive with tyres which have too little
tread depth. This otherwise significantly
reduces the traction on wet roads (aqua-
planing).
R Replace the tyres after six years at the lat-
est, regardless of wear. This also applies to
the spare wheel. Winter operation
General notes
Have your vehicle winterproofed at a qualified
specialist workshop at the onset of winter.
Observe the notes in the "Changing a wheel"
section (Y page 329). Driving with summer tyres
At temperatures below +7 †, summer tyres
lose elasticity and therefore traction and
braking power. Change the tyres on your vehi-
cle to M+S tyres. Using summer tyres at very
cold temperatures could cause tears to form,
thereby damaging the tyres permanently. Winter operation
323Wheels and tyres Z

may invalidate the vehicle's general operating
permit.
This is the case:
R if they cause a change of the vehicle type
from that for which the vehicle's general
operating permit was granted
R if other road users could be endangered
R if the emission or noise levels are adversely
affected
Always specify the vehicle identification num-
ber (VIN) (Y page 340) and the engine num-
ber (Y page 341) when ordering genuine
Mercedes-Benz parts. Vehicle electronics
Tampering with the engine electron-
ics G
WARNING
Always have work on the engine electronics
and related components carried out at a quali-
fied specialist workshop .Otherwise, the vehi-
cle's operating safety could be affected.
! Only have work carried ou tonthe engine
electronics and its associated parts, such
as control units, sensors and connector
leads, at a qualified specialist workshop.
Vehicle components may otherwise wear
more quickly and the vehicle's operating
permit may be invalidated. Retrofitting of two-way radios and
mobile phones (RF transmitters) G
WARNING
Incorrect retrofitting of RF transmitters can
cause the vehicle electronicst o malfunction.
The vehicle's operating safety and thus your
own safety are impaired.
Have aftermarket radio frequency transmit-
ting equipment installed at a qualified spe-
cialist workshop. G
WARNING
Incorrect retrofitting 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.
Have aftermarket radio frequency transmit-
ting equipment installed at a qualified spe-
cialist workshop.
! The operating permit may be invalidated
if the instructions for installation and use of
RF transmitters are not observed.
In particular, the following conditions must
be complied with:
R only approved wavebands may be used.
R the maximum permissible output in
these wavebands must be complied with.
R the approved aerial positions must be
complied with. Approved aerial positions
:
Front roof area
; Rear wing
i When fitting an aerial on the front roof
area of vehicles with a sliding sunroof,
observe the sweeping range of the roof.
On the rear wing, it is recommended to
position the aerial on the side of the vehicle
that faces the centre of the road.
Use Technical Specification ISO/TS 21609
(Road Vehicles –"EMC guidelines for fitting
aftermarket radio frequency transmitting
equipment") when retrofitting RF (radio fre- Vehicle electronics
339Technical data Z

The missing values for the following models
were not available at the time of going to
print:
R G 63 AMG
R G 65 AMG All mod-
els
(except
AMG vehi- cles) AMG vehi-
cles :Upper-
edge clear-
ance 1905 mm –
2005 mm ;Lower-
edge clear-
ance 680 mm –
780 mm =Range of
movement 931 mm
All models (except AMG
vehicles)
Vehicle length (ECE)
4662 mm
Vehicle width including
exterior mirrors
2055 mm
Vehicle width excluding
exterior mirrors
1760 mm
Maximum vehicle height
1951 mm
Wheelbase
2850 mm
Minimum ground clear-
ance
205 mm
Unladen weight (vehicles
with
apetrol engine) 2642 kg
Unladen weight (vehicles
with
adiesel engine) 2682 kg
Maximum roof load
200 kg G-Class Cabriolet
G5
00 :Upper-edge clear-
ance (spare wheel
bracket) 1580 mm –
1680 mm ;Lower-edge clear-
ance (tailgate) 1050 mm –
1070 mm =Range of move-
ment (spare wheel
bracket) 750 mm
?Range of move-
ment (tailgate) 500 mm
G5
00 Vehicle length (ECE)
4257 mm
Vehicle width including
exterior mirrors
2055 mm
Vehicle width excluding
exterior mirrors
1760 mm
Maximum vehicle height
1951 mm
Wheelbase
2400 mm
Minimum ground clear-
ance
205 mm
Unladen weight
2492 kgVehicle data
349Technical data Z