warning MERCEDES-BENZ G-CLASS SUV 2012 Service Manual

Do not attach any heavy or large objects to
the key .Remove any bulky keyrings before
inserting the key into the ignition lock. G
WARNING
When the double locks are activated, the
doors can no longer be opened from the
inside. People in the vehicle can no longer get
out, e.g. in hazardous situations. There is a
risk of injury.
Therefore, do not leave any people unsuper-
vised in the vehicle, particularly children, eld-
erly people or people in need of special assis-
tance. Do not activate the double lock when
people are in the vehicle.
Deactivating the double lock
i If the vehicle has been locked with the
key, the double lock function is activated
as standard. It is then not possible to open
the doors from inside the vehicle.
X Deactivate the interior motion sensor
(Y page 65).
X Lock the vehicle with the key.
The double lock is deactivated and the
doors can be opened from the inside. :
& To lock the vehicle
; % To unlock the vehicle
X To unlock centrally: press the%but-
ton. If you do not open the vehicle within
approximately 40 seconds of unlocking:
R
the vehicle is locked again.
R the anti-theft system is primed again.
X To lock centrally: press the&button.
The key centrally locks/unlocks:
R the doors
R the rear door
R the fuel filler flap
i When unlocking, the turn signals flash
once. When locking, they flash three times.
You can also set an audible signal to confirm
that the vehicle has been locked. The audible
signal can be activated and deactivated using
the on-board computer (Y page 223).
When it is dark, the surround lighting also
comes on if it is activated in the on-board
computer (Y page 222). Changing the settings of the locking
system
You can change the setting of the locking
system in such a way that only the driver's
door and the fuel filler flap are unlocked. This
is useful if you frequently travel on your own.
i
If the setting of the locking system is
changed within the signal range of the vehi-
cle, pressing the &or% button locks
or unlocks the vehicle.
X To change the setting: press and hold
down the %and& buttons simulta- Key
69Opening and closing Z

neously for approximately si
xseconds until
battery chec klamp :flashes twice.
The key now functions as follows:
X To unlock the driver's door and fuel
filler flap: press the%button once.
X To unlock centrally: press the%but-
ton twice.
X To lock centrally: press the&button. Restoring factor
ysettings X
Press the %and& buttons simulta-
neously for approximately six seconds until
battery check lamp :flashes twice. Emergency key element
General notes If the vehicle can no longer be unlocked with
the key, use the emergency key element.
If you use the emergency key element to
unlock and open the driver's door, the anti-
theft alarm system will be triggered
(Y page 64).
There are several ways to tur noff the alarm:
X Press the %or& button on the key.
or
X Insert the key into the ignition lock.
If you unlock the vehicle using the emergency
key element, the fuel filler flap will not be
unlocked automatically. X
To unlock the fuel filler flap: insert the
key into the ignition lock.
Removing the emergency key element :
Release catch
; Emergency key element
X Push release catch :in the direction of
the arrow and at the same time, remove
emergency key element ;from the key. Battery of the key
Important safety notes G
WARNING
Batteries contain toxic and corrosive substan-
ces. If batteries are swallowed, it can result in
severe health problems. There is a risk of fatal
injury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention
immediately. H
Environmental note Batteries contain pollutants.
It is illegal to dispose of them
with the household rubbish.
They must be collected sep-
arately and disposed of in an
environmentally responsible
recycling system.
Dispose of batteries in an
environmentally responsible
manner. Take discharged70
KeyOpening and closing

Doors
Important safety notes
G
WARNING
If children are lef tunsupervised in the vehicle,
they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shift the automatic transmission ou tof
parking position P.
R shift the manual transmission into neutral.
R start the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave
children or animals unattended in the vehicle.
Always keep the key out of reach of children. Unlocking and opening the doors
from the inside
You can open a door anytime from inside the
vehicle, even if it has been locked, unless the
child-proof locks (Y page 59) have been acti-
vated.
If the vehicle has previously been locked with
the key, opening a door from the inside will
trigger the anti-thef talarm system. Switch off
the alarm (Y page 64).
You can only open the rear compartment
doors fro minside the vehicle if they are not
secured by the child-proof locks (Y page 59). X
Pull door handle ;.
If the door is locked, locking knob :pops
up .The door is unlocked and can be
opened. Centrally locking and unlocking the
vehicle from the inside
G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shift the automatic transmission out of
parking position P.
R shift the manual transmission into neutral.
R start the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave
children or animals unattended in the vehicle.
Always keep the key out of reach of children.
You can centrally lock or unlock the vehicle
from the inside. This feature may be useful if,
for example, you wish to unlock the front-
passenger door from the inside or lock the
vehicle before you pull away. Doors
73Opening and closing Z

X
Turn the emergency key element back and
remove it.
X Insert the emergency key element into the
key. Locking the vehicle
If the vehicle can no longer be centrally
locked with the key, use the emergency key
element.
X Close the front-passenger door, the rear
compartment doors and the rear door or
tailgate (G-Class Cabriolet).
X Press the locking button (Y page 73).
X Make sure that the lockin gknobs on the
doors are still visible .Press downt he lock-
ing knobs by hand, if necessary.
X Close the driver's door from the outside. X
Take the emergency key element out of the
key (Y page 70).
X Insert the emergency key element into the
lock of the driver's door as far as it will go.
X Turn the emergency key element clockwise
as far as it will go to position 1.
i On right-hand-drive vehicles, turn the
emergency key element anti-clockwise.
X Turn the emergency key element back and
remove it.
X Check if the doors, including the rear door
or tailgate (G-Class Cabriolet), are locked.
X Insert the emergency key element into the
key. Rear door (G-Class long-wheelbase
version)
Important safety notes
G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. If the tail-
gate/rear door is open when the engine is
running, particularly if the vehicle is moving,
exhaust fumes could enter the passenger
compartment. There is a risk of poisoning.
Turn off the engine before opening the tail-
gate/rear door. Never drive off with the tail-
gate/rear door open.
! The tailgate swings out to the side when
opened. Therefore, make sure that there is
sufficient clearance.
i Do not leave the key in the luggage com-
partment.Y ou may otherwise be inadver-
tently locked out. Opening
You can only open the rear door after unlock-
ing it first.
X Press the %button on the key. X
Press release button :and pull door han-
dle ;.
X Open the rear door. Rear door (G-Class long-wheelbase version)
75Opening and closing Z

Closing
X Push the rear door closed from outside the
vehicle.
X If necessary, loc kthe vehicle with the
& button on the key. Tailgate (G-Class Cabriolet)
Important safety notes
G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. If the tailgate
is open when the engine is running, particu-
larly if the vehicle is moving, exhaust fumes
could enter the passenger compartment.
There is a risk of poisoning.
Turn off the engine before opening the tail-
gate. Never drive with the tailgate open. G
WARNING
If the spare wheel bracket is not correctly
closed and engaged, it could swing to the side
while the vehicle is in motion. There is a risk
of an accident and injury.
Close the spare wheel bracket completely
before the journey and make sure that it is
engaged. Opening
! Make sure that there is sufficient clear-
ance.
You can only open the tailgate after it has
been unlocked.
X Press the %button on the key.
The tailgate is unlocked. X
Raise safety catch :and pull lever =in
the direction of the arrow.
X Swing spare wheel bracket ;to the side
in the direction of the arrow. X
Turn quick-locking mechanisms ?clock-
wise.
X Open zips Aupwards approximately
10 cm.
i When the soft top is open and the tonneau
cover is attached, you need only release the
quick-locking mechanisms on the tonneau
cover. 76
Tailgate (G-Class Cabriolet)Opening and closing

X
Pull handle Bupwards and push down the
tailgate. Closing
X Fold the tailgate upwards.
The tailgate engages audibly.
X If necessary, lock the vehicle with the
& button on the key.
X Zip up the tonneau cover.
X Turn the quick-release fasteners to the left.
X Swing the spare wheel bracket to the left
until it sits on the tailgate.
X Press the lever to the right until the retain-
ing hook engages audibly. Side windows
Important safety notes
G
WARNING
While opening the side windows, body parts
could become trapped between the side win-
dow and the door frame as the side window
moves. There is a risk of injury.
Make sure that nobody touches the side win-
dow during the opening procedure. If some-
body becomes trapped, release the switch or
pull the switch to close the side window again. G
WARNING
While opening the side windows, body parts
in the closing area could become trapped.
There is a risk of injury.
Make sure that no body parts are in close
proximity during the closing procedure. If
somebody becomes trapped, release the
switch or press the switch to open the side
window again. G
WARNING
If children operate the side windows they
could become trapped, particularly if they are
left unsupervised. There is a risk of injury. Activate the override feature for the rear side
windows. When leaving the vehicle, always
take the key with you and lock the vehicle.
Never leave children unattended in the vehi-
cle.
G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shift the automatic transmission out of
parking position P.
R shift the manual transmission into neutral.
R start the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave
children or animals unattended in the vehicle.
Always keep the key out of reach of children. Opening and closing the side win-
dows
The switches for all side windows are located
on the driver's door. There is also a switch on
each door for the corresponding side window.
The switches on the driver's door take prec-
edence. Side windows
77Opening and closing Z

Example: G-Class long-wheelbase version
: Front left
; Front right
= Rear right (G-Class long-wheelbase ver-
sion only)
? Rear left (G-Class long-wheelbase version
only)
X Turn the key to position 1or 2in the igni-
tion.
X To open: press the corresponding switch.
X To close: pull the corresponding switch.
X To open automatically: press the corre-
sponding switch briefly beyond the point of
resistance.
The side window opens completely.
X To interrupt automatic operation: press
or pull the corresponding switch again.
i You can continue to operate the side win-
dows after switching off the engine or
removing the key. This function remains
active for five minutes or until the driver's
or front-passenger door is opened.
i The side windows canno tbe operated
from the rear when the override feature for
the side windows is activated (Y page 60).Convenience opening feature
i The convenience opening feature can
only be operated using the key. The key
must be close to the driver's door handle. You can ventilate the vehicle before you start
driving. To do this, the key is used to carry out
the following functions simultaneously:
R unlock the vehicle
R open the side windows
R open the sliding sunroof
R switch on the seat ventilation for the driv-
er's seat and front-passenger seat
X Point the tip of the key at the driver's door
handle.
X Press and hold the %button until the
side windows and the sliding sunroof are in
the desired position.
X To interrupt convenience opening:
release the %button. Problems with the side windows
G
WARNING
Closing the side windows with increased force
or without the anti-entrapment feature could
lead to serious or even fatal injury. Make sure
that nobody can become trapped when clos-
ing the side windows.
Problem: aside window cannot be closed
because objects are trapped between the
side window and the door frame.
X Remove the objects.
X Close the side window.
Problem :aside window cannot be closed
and you cannot see the cause.
If a side window is obstructed during closing
and reopens again slightly:
X Immediately afte rthe window blocks, pull
the corresponding switch again until the
side window has closed. 78
Side windowsOpening and closing

If a side window is obstructed again during
closing and reopens again slightly:
X Immediately after the window blocks, pull
the corresponding switch again until the
side window has closed.
i If a side window no longer opens or closes
due to a malfunction, contact a qualified
specialist workshop. Sliding sunroof
Important safety notes
G
WARNING
While opening and closing the sliding sunroof,
body parts in close proximity could become
trapped .There is a risk of injury.
Make sure that no body parts are in close
proximity during the opening and closing pro-
cedures.
If somebody becomes trapped:
R release the switch immediately, or
R during automatic operation, push the
switch briefly in any direction
The opening or closing procedure will be stop-
ped. G
WARNING
If children operate the sliding sunroof they
could become trapped, particularly if they are
left unsupervised. There is a risk of injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave
children unattended in the vehicle.
! Only open the panorama sliding sunroof
if it is free of snow and ice. Otherwise, mal-
functions may occur.
Do not allow anything to protrude from the
sliding sunroof. Otherwise, the seals could
be damaged.
i Resonance noises can occur in addition
to the usual airflow noises when the sliding
sunroof is open. They are caused by minor
pressure fluctuations in the vehicle interior. Change the position of the sliding sunroof
or open a side window slightly to reduce or
eliminate these noises. Opening and closing the sliding sun-
roof
Overhead control panel
:
To raise
; To open
= To close/lower
X Turn the key to position 1or
2(Y page 143) in the ignition.
X Press or pull the ¡switch in the corre-
sponding direction.
X To open automatically: press the¡
switch briefly beyond the point of resist-
ance in the direction of arrow ;.
The sliding sunroof opens completely.
X To interrupt automatic operation: press
or pull the ¡switch again.
i The automatic operation is only available
for opening. Operating the sliding sunroof man-
ually
The actuator is located in the luggage com-
partment, on the left-hand side behind the
rear wall trim. Sliding sunroof
79Opening and closing Z

X
Open the rear door.
X Pull off edge protection :from the door
pillar in the direction of arrow ;.
X Pull away rear panel trim =as far as nec-
essary in the direction of arrow ?until the
electrical connections can be accessed.
X Disconnect the electrical connections.
X Remove rear panel trim =completely. X
Take wheel wrench Aout of the vehicle
tool kit (Y page 306).
X Place wheel wrench Aonto the hexagonal
nut of the actuator.
X To open: turn wheel wrench Aanti-clock-
wise.
X To close: turn wheel wrench Aclockwise. X
Reconnect the electrical connections.
X Refit rear panel trim =.
When doing so, hook lugs Bof rear panel
trim =into vehicle side wall C.
X Refit edge protection :.
X Close the rear door. Problems with the sliding sunroof
G
WARNING
You could be severely or even fatally injured
when closing the sliding sunroof with
increased closing force or if the anti-entrap-
ment feature is deactivated. Make sure that
nobody can become trapped when closing the
sliding sunroof.
! If the sliding sunroof cannot be fully
opened or closed due to a malfunction,
contact a qualified specialist workshop.
Problem: the sunroof cannot be closed
and you cannot see the cause. 80
Sliding sunroofOpening and closing

If the sliding sunroof is obstructed during
closing and reopens again slightly:
X Immediately after the sliding sunroof
blocks, pull the ¡switch in the over-
head control panel down to the point of
resistance and hold it until the sliding sun-
roof is closed.
If the sliding sunroof is obstructed again dur-
ing closing and reopens again slightly:
X Immediately after the sliding sunroof
blocks, pull the ¡switch in the over-
head control panel down to the point of
resistance and hold it until the sliding sun-
roof is closed. Soft top (G-Class Cabriolet)
Important safety notes
G
WARNING
If the closed soft top is not locked, it can open
while the vehicle is in motion. This could
cause you to lose control of the vehicle .There
is a risk of an accident.
Only drive with the soft top fully open or
closed.
! Never sit on the soft top or store heavy
objects on it. Otherwise, the soft top will be
damaged.
! The soft top swings upwards when it is
opened or closed. In order to avoid dam-
aging the soft top or other parts of the vehi-
cle when opening or closing the soft top,
observe the following:
R there must be sufficient clearance above
the vehicle.
R the tonneau cover must not be attached
to the opened soft top.
R the luggage compartmentc over must
not be pushed up by the load.
R there must not be any objects on the lug-
gage compartment cover.
R no roof rack must be fitted. R
the outside temperature must be over
−15 †.
R the fabric must not be dirty, wet or fro-
zen.
R the vehicle must not be parked at a steep
angle, e.g. off-road.
R zip fasteners and quick-release fasteners
must be closed.
The soft top can only be opened and closed if
the vehicle is stationary.
i Make sure the soft top is dry before open-
ing it. Water could otherwise enter the vehi-
cle interior or luggage compartment.
i Avoid repeatedly opening and closing the
soft top. This discharges the battery. Operating the soft top
Opening X
Move the selector lever to P.
X Apply the parking brake.
X Turn the key to position 2in the ignition
lock.
X Fold raised sun visors onto the windscreen. X
Swing release lever :to the left until a
warning tone sounds.
X Swing release lever ;to the right, a warn-
ing tone sounds.
The soft top is unlocked. Soft top (G-Class Cabriolet)
81Opening and closing Z