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

Problems with the key
Problem Possible causes/consequences and
M Solutions
You cannot lock or
unlock the vehicle
using the key. The key battery is discharged or nearly discharged.
X
Point the tip of the key at the driver's door handle from a dis-
tance of approximately 50 cm and try to unlock or lock the
vehicle again.
If this does not work:
X Check the key battery (Y page 71) and replace it if necessary
(Y page 71).
X Lock (Y page 74) or unlock (Y page 75) the vehicle using
the emergency key element. The key is faulty.
X
Lock or unlock the vehicle using the emergency key element
(Y page 74).
X Have the key checked at a qualified specialist workshop. You have lost a key. X
Have the key deactivated at a qualified specialist workshop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks replaced as well. You have lost the emer-
gency key element. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks replaced as well. Problem Possible causes/consequences and
M Solutions
The engine cannot be
started using the key. The key has been in position
0(Ypage 143) for a considerable
time.
X Remove the key and reinsert it into the ignition lock.
X Start the engine. The on-board voltage is too low.
X
Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to turn the key again.
If this does not work:
X Check the battery and charge it if necessary (Y page 311).
or
X Jump-start the vehicle (Y page 313).
or
X Consult a qualified specialist workshop. 72
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

Useful information
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. Country-specific differen-
ces are possible. Note that your vehicle
may not be fitted with all features descri-
bed. This is also the case for systems and
functions relevant to safety.
i Read the information on qualified special-
ist workshops: (Y page 22). Exterior lighting
Important safety notes
For reasons of safety, Mercedes-Benz recom-
mends that you drive with the lights switched
on even during the daytime. In some coun-
tries, operation of the headlamps varies due
to legal requirements and self-imposed obli-
gations. Driving abroad
Converting to symmetrical dipped
beam If your journey takes you to countries where
vehicles are driven on the opposite side of the
road to the country in which the vehicle is
registered, your headlamps must be switched
to symmetrical dipped beam. This prevents
oncoming traffic from being dazzled. Sym-
metrical lights do not illuminate as large an
area of the edge of the carriageway.
Have the headlamps converted at a qualified
specialist workshop as close to the border as
possible before driving in these countries.
Converting to asymmetrical dipped
beam after returning Have the headlamps converted back to asym-
metrical dipped-beam headlamps at a quali- fied specialist workshop as soon as possible
after crossing the border again. Light switch
Operation !
Switch off the side lamps and dipped-
beam headlamps when you leave the vehi-
cle. This prevents the battery from dis-
charging.
! If the battery has been excessively dis-
charged, the side lamps or parking lamps
are automatically switched off to enable
the nex tengine start. Always park your
vehicle safely and sufficiently li taccording
to legal standards. Avoid the continuous
use of the Tside lamps for several
hours. If possible, switch on the Xright
or the Wleft parking lamp. 1W
Left-hand parking lamps
2X Right-hand parking lamps
3T Side lamps, licence plate and instru-
ment cluster lighting
4Ã Automati cheadlamp mode/daytime
driving lights
5L Dipped-beam/main-beam head-
lamps
If you hear a warning tone when you leave the
vehicle, the lights may still be switched on.
X Turn the light switch to Ã.
The turn signals, main-beam headlamps and
the headlamp flasher are operated using the
combination switch (Y page 108).104
Exterior lightingLights and windscreen wipers

The exterior lighting (except the side lamps/
parking lamps) switches off automatically if
you:
R remove the key from the ignition lock
R open the driver's door with the key in posi-
tion 0
Dipped-beam headlamps 1W
Left-hand parking lamps
2X Right-hand parking lamps
3T Side lamps, licence plate and instru-
ment cluster lighting
4Ã Automatic headlamp mode/daytime
driving lights
5L Dipped-beam/main-beam head-
lamps
X To switch on the dipped-beam head-
lamps: turn the key in the ignition lock to
position 2or start the engine.
X Turn the light switch to L.
The L indicator lamp in the instrument
cluster lights up. Daytime driving lights 1W
Left-hand parking lamps
2X Right-hand parking lamps
3T Side lamps, licence plate and instru-
ment cluster lighting
4Ã Automatic headlamp mode/daytime
driving lights
5L Dipped-beam/main-beam head-
lamps
You can set the "daytime driving lights" func-
tion via the on-board computer
(Y page 222).
X Daytime driving lights: activate the day-
time driving lights function using the on-
board computer.
X Turn the light switch to Ã.
When the engine is on: depending on the
ambient light conditions, the daytime driv-
ing lights or the parking and dipped-beam
headlamps are switched on.
When the dipped-beam headlamps are
switched on, the Lindicator lamp in the
instrument cluster lights up.
Automatic headlamp mode G
WARNING
If the light switch is set to Ãand it is foggy,
snowing or there is poor visibility, the dipped-
beam headlamps will not come on automati-
cally. This could endanger you and others. In
such situations turn the light switch to L. Exterior lighting
105Lights and windscreen wipers
Z

The automatic headlamp feature is only an
aid. The driver is responsible for the vehicle's
lighting at all times. 1W
Left-hand parking lamps
2X Right-hand parking lamps
3T Side lamps, licence plate and instru-
ment cluster lighting
4Ã Automatic headlamp mode/daytime
driving lights
5L Dipped-beam/main-beam head-
lamps
X To switch on automatic headlamp
mode: turn the light switch to Ã.
Key in position 1in the ignition lock: the
side lamps are switched on or off automat-
ically depending on the brightness of the
ambient light.
With the engine running: if you have acti-
vated the daytime driving lights function in
the on-board computer, the daytime driving
lights or the dipped-beam headlamps are
switched on or off automatically depending
on the brightness of the ambient light.
When the dipped-beam headlamps are
switched on, the Lindicator lamp in the
instrument cluster lights up.
Foglamps (except AMG vehicles) G
WARNING
If you suspect that driving conditions will be
foggy, turn the light switch to Lbefore you
start your journey. Your vehicle may other- wise not be visible and you could endanger
yourself and others.
1W
Left-hand parking lamps
2X Right-hand parking lamps
3T Side lamps, licence plate and instru-
ment cluster lighting
4Ã Automatic headlamp mode/daytime
driving lights
5L Dipped-beam/main-beam head-
lamps
BN Foglamps (except AMG vehicles)
CR Rear foglamp
X To switch on the foglamps: turn the key
in the ignition lock to position 2or start the
engine.
X Turn the light switch to T,Lor
Ã. 106
Exterior lightingLights and windscreen wipers

X
Press the Nbutton.
The green Nindicator lamp in the instru-
ment cluster lights up.
X To switch off the front foglamps: press
the N button.
The green Nindicator lamp in the instru-
ment cluster goes out.
Only vehicles with frontf oglamps have the
"Foglamps" function. Rear foglamp
1W
Left-hand parking lamps
2X Right-hand parking lamps
3T Side lamps, licence plate and instru-
ment cluster lighting
4Ã Automatic headlamp mode/daytime
driving lights
5L Dipped-beam/main-beam head-
lamps
BN Foglamps (except AMG vehicles)
CR Rear foglamp X
To switch on the rear foglamp: turn the
key in the ignition lock to position 2or start
the engine.
X Turn the light switch to LorÃ.
X Press the Rbutton.
The yellow Rindicator lamp in the
instrument cluster lights up.
X To switch off the rear foglamp: press the
R button.
The yellow Rindicator lamp in the
instrument cluster goes out. Side lamps
1W
Left-hand parking lamps
2X Right-hand parking lamps
3T Side lamps, licence plate and instru-
ment cluster lighting
4Ã Automatic headlamp mode/daytime
driving lights
5L Dipped-beam/main-beam head-
lamps Exterior lighting
107Lights and windscreen wipers Z