2012 MERCEDES-BENZ G-CLASS SUV warning

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). Important safety notes
G
WARNING
Only use the on-board computer when road
and traffic conditions permit .You would oth-
erwise be distracted and unable to concen-
trate properly on driving, and could cause an
accident. G
WARNING
No messages will be displayed if either the
instrument cluster or the multifunction dis-
play is inoperative.
As a result, you will not be able to see infor-
mation about your driving conditions, such as
speed, outside temperature, warning and indi-
cator lamps, display messages or system fail-
ures. Driving characteristics may be impaired.
Adjust your driving style and vehicle speed
accordingly.
Contact a qualified specialist workshop
immediately. G
WARNING
The on-board computer only records and dis-
plays malfunctions and warnings from certain
systems. For this reason, you should always
make sure that your vehicle is safe to use. You
could otherwise cause an accident by driving
an unsafe vehicle. G
WARNING
The operating safety of your vehicle could be
impaired if maintenance work is carried out
incorrectly. This could cause you to lose con-
trol of your vehicle and cause an accident.
Moreover, the safety systems may no longer
be able to protect you or others as they are
designed to do.
Always have service work carried out at a
qualified specialist workshop.
For an illustration of the instrument cluster,
see (Y page 211). 210
Important safety notesOn-board computer and displays

=
Rev counter (Y page 212)
? Coolan ttemperature (Y page 212)
A Fuel gauge
B Instrument cluster lighting (Y page 212)Instrument cluster lighting
The lighting in the instrument cluster, in the
displays and the controls in the vehicle inte-
rior can be adjusted using the brightness con-
trol knob.
The brightness control knob is located on the
bottom left of the instrument cluster
(Y page 211).
X Turn the brightness control knob clockwise
or anti-clockwise.
If the light switch is set to Ã,Tor
L, the brightness is dependen tupon
the brightness of the ambient light.
i The light senso rinthe instrumentc luster
automatically controls the brightness of
the multifunction display.
In daylight, the displays in the instrument
cluster are not illuminated. Displaying the coolant temperature
The coolan ttemperature gauge is in the
instrument cluster on the right-hand side
(Y page 211).
The reading may rise up to 120 †undernor-
mal driving conditions if the coolant has been
filled correctly.
At high outside temperatures and when driv-
ing uphill, the coolant temperature may rise
to the end of the scale. Rev counter
! Do not drive in the overrevving range.
Doing so will damage the engine.
The red band in the rev counter indicates the
engine's overrevving range. The fuel supply is interrupted to protec
tthe
engine when the red band is reached. Outside temperature display
G
WARNING
At temperatures just above freezing point, the
street may be icy, especially in wooded areas
or on bridges. If you do not adapt your driving
style to the conditions, the vehicle could skid.
For this reason, adapt your driving style and
speed to the weather conditions.
The outside temperature displayi s in the mul-
tifunction display (Y page 214).
Changes in the outside temperature are dis-
played after a short delay. Speedometer with segments
The segments in the speedometer indicate
which speed range is available.
R Cruise control activated (Y page 173):
The segments light up from the stored
speed to the maximum speed.
R Variable SPEEDTRONIC activated
(Y page 178):
The segments light up from the start of the
scale to the selected limit speed.
R DISTRONIC PLUS activated (Y page 184):
One or two segments in the set speed
range light up.
R DISTRONIC PLUS detects avehicle in front:
The segments between the speed of the
vehicle in fron tand the stored speed light
up. 212
Displays and operationOn-board computer and displays

X
To select a station from the station
list: press and briefly hold the 9
or : button.
If no statio nlist is received:
X To select astation using the station
search: press and briefly hold the 9
or : button.
i For informatio nonswitching wavebands
and storing stations, see the separate oper-
ating instructions.
i DABradio mode ( DigitalAudioBroadcast-
ing), see the separate operating instruc-
tions.
Operating audio devices or media Example
:display CD/DVD changer
: Current CD in the CD/DVD changer
; Current track
Audio data from various audio devices or
media can be played, depending on the equip-
ment fitted in the vehicle.
X Switch on the audio syste morCOMAND
Online and select the audio player or
medium, see the separate operating
instructions.
X Press the =or; button on the steer-
ing wheel to select the Audio menu.
X To select the next/previous track:
briefly press the 9or: button.
X To select a track from the track list
(rapid scrolling): press and hold the
9 or: button until desired
track ;has been reached.
If you press and hold 9or:, the
rapid scrolling speed is increased. Not all audio devices or media support this func-
tion.
If track information is stored on the audio
device or medium, the multifunction display
will show the number and title of the track.
The current track does not appearina udio
AUX mode (Aux iliary audio mode: external
audio source connected).
Video DVD operation Example: display CD/DV
Dchanger
: Current DVD in the CD/DVD changer
; Current scene
X Switch on the audio system or COMAND
Online and select video DVD, see the sep-
arate operating instructions.
X Press the =or; button on the steer-
ing wheel to select the Audio menu.
X To selectt he nextorprevious scene:
briefly press the 9or: button.
X To select ascene from the scene list
(rapid scrolling): press and hold the
9 or: buttonuntil desired
scene ;has been reached. Telephone menu
Introduction G
WARNING
Observe the legal requirements of the country
in which you are currently driving regarding
the use of mobile phones in the vehicle.
If it is permitted to use mobile phones while
the vehicle is in motion, you should only use
them when the road and traffic conditions
allow. Otherwise, you may be distracted from 218
Menus and submenusOn-board computer and displays

Vehicle
Setting permanen
tSPEEDTRONIC
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Vehicle submenu.
X Press ato confirm.
X Press :or9 to select the Limit speed (winter tyres): function.
You will see the current setting.
X Press ato confirm.
X Press the :or9 button to adjust
permanent SPEEDTRONIC in increments of
ten (230 km/h to
160 km/h ). The
Off set-
ting switches permanent SPEEDTRONIC
off.
X Press the abutton to store the entry.
For further information on permanent SPEED-
TRONIC (Y page 182).
Switching the automatic locking feature
on/off
If you activate the Auto. door locks func-
tion, the vehicle is centrally locked above a
speed of approximately 15 km/h.
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Vehicle submenu.
X Press ato confirm.
X Press :or9 to select the Auto. door locks function.
When the Auto. door locks function is
activated, the vehicle doors are displayed
in red in the multifunction display.
X Press the abutton to save the setting.
For further information on the automatic lock-
ing feature, see (Y page 74). Activating/deactivating the acoustic
locking confirmation
If you switch on the
Acoustic Lock function,
an acoustic signal sounds when you lock the
vehicle.
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Vehicle submenu.
X Press ato confirm.
X Press the :or9 button to select the
Acoustic Lock function.
If the Acoustic Lock function is activated,
the & symbol in the multifunction dis-
play lights up red.
X Press the abutton to save the setting.
Heating Auxiliary heating departure time
G
WARNING
Exhaust fumes are produced when the auxili-
ary heating is in operation. Inhaling these
exhaust fumes can be poisonous. You should
therefore switch off the auxiliary heating in
confined spaces without an extraction sys-
tem, e.g. a garage. G
WARNING
When operating the auxiliary heating parts of
the vehicle can get very hot. Make sure that
the exhaust system does not under any cir-
cumstances come into contact with easily
ignitable material such as dry grass or fuels.
The material could otherwise ignite and set
the vehicle alight. Choose your parking spot
accordingly.
Operating the auxiliary heating is thus pro-
hibited at filling stations or when your vehicle
is being refuelled. You must therefore switch
off the auxiliary heating at filling stations.
! Operating the auxiliary heating/ventila-
tion draws on the vehicle battery. After you
have heated or ventilated the vehicle a Menus and submenus
223On-board computer and displays Z

maximum of two times, drive for a longer
distance.
This function is only available on vehicles with
auxiliary heating (Y page 126).
In the Heating submenu, you can select a
stored departure time or change a departure
time.
The auxiliary heating timer function calcu-
lates the switch-on time according to the out-
side temperature so that the vehicle is pre-
heated by the departure time. When the
departure time is reached, the auxiliary heat-
ing continues to heat for a further five
minutes and then switches off. The auxiliary
heating adopts the THERMATIC temperature
setting.
You can switch off the auxiliary heating by
using the remote control or the &auxiliary
heating button on the centre console.
Selecting the departure time or deactivat-
ing a selected departure time
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Heating submenu.
X Press ato confirm.
You will see the selected setting.
X Press ato confirm.
X Press the :or9 button to select
one of the three departure times or Timeroff (no timer active).
X Press ato confirm.
If a departure time is selected, the yellow
indicator lamp lights up on the &auxil-
iary heating button.
Changing the departure time
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Heating submenu.
X Press ato confirm.
You will see the selected setting. X
Press ato confirm.
X Press the :or9 button to select
Change A ,
B or
C .
X Press ato confirm.
You can now change the departure time.
X Press the =or; button to select the
display to be changed :hours, minutes.
X Press the :or9 button to set the
selected display.
X Press the abutton to store the entry.
The yellow indicator lamp on the &aux-
iliary heating button lights up.
Convenience Activating/deactivating the EASY-
ENTRY/EXIT feature
G
WARNING
The steering wheel moves when the EASY-
ENTRY/EXIT feature is active. There is a risk
of occupants becoming trapped. Before acti-
vating the EASY-ENTRY/EXIT feature, make
sure that nobody can become trapped.
Do not leave children unsupervised in the
vehicle, even if they are secured in a child
restraint system. The children could open the
driver's door and thereby unintentionally acti-
vate the EASY-ENTRY/EXIT feature and
become trapped.
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
CONVENIENCE submenu.
X Press ato confirm.
X Press :or9 to select the Easy Entry/Exit: function.
If the Easy Entry/Exit function is activa-
ted, the vehicle steering wheel is displayed
in red in the multifunction display.
X Press the abutton to save the setting.
Further information on the EASY-ENTRY/EXIT
feature (Y page 98). 224
Menus and submenusOn-board computer and displays

using the full output of the engine during this
time.
SETUP
:
Drive program (C /SS+ /M )
; ESP ®
mode (ON /OFF )
= Suspension tuning (SPORT /COMFORT )
SETUP shows the drive program, the ESP ®
(Electronic Stability Program) mode and the
SPORT handling mode.
X Press =or; on the steering wheel
to select the AMG menu.
X Press the 9buttonrepeatedly until
SETUP is displayed.
RACETIMER Displaying and starting the RACETIMER
G
WARNING
The RACETIMER feature is only for use on
roads and in conditions where high speed
driving is permitted. Racing on public roads is
prohibited under all circumstances. The driver
is and must always remain responsible for fol-
lowing posted speed limits. :
Lap
; RACETIMER
You can start the RACETIMER when the
engine is running or if the key is in position
2(Y page 143) in the ignition lock. X
Press =or; on the steering wheel
to select the AMG menu.
X Press the 9button repeatedly until the
RACETIMER is shown.
X To start: press the abutton to start the
RACETIMER.
Displaying the intermediate time X
Press the =or; button to select
Interm. Time .
X Press ato confirm.
The intermediate time is displayed for five
seconds.
Starting a new lap :
RACETIMER
; Fastes tlap time (bes tlap)
= Lap
X Press ato confirm New Lap .
i It is possible to store a maximum of six-
teen laps. The 16th lap can only be com-
pleted with Finish Lap .
Stopping the RACETIMER 226
Menus and submenusOn-board computer and displays

This function is only available if you have
stored at least two laps and have stopped the
RACETIMER.
X
Press =or; on the steering wheel
to select the AMG menu.
X Press the 9button repeatedly until the
lap evaluation is shown.
Each lap is shown in a separate submenu.
The fastest lap is indicated by flashing sym-
bol :.
X Press the 9or: button to select a
different lap evaluation. Display messages
Introduction
General notes Display messages appear in the multifunction
display.
Display messages with graphic symbols are
simplified in the Owner's Manual and may dif-
fer from the symbols in the multifunction dis-
play.
Please respond in accordance with the dis-
play messages and follow the additional
notes in this Owner's Manual.
Certain display messages are accompanied
by an audible warning tone or a continuous
tone.
When you stop and park the vehicle, please
observe the notes on:
R
HOLD function (Y page 196)
R Parking (Y page 163)
Hiding display messages X
Press the aor% button on the steer-
ing wheel to hide the display message.
The display message is cleared.
High-priority display messages are red.
You cannot hide display messages of the
highest priority. The multifunction display
shows these messages continuously until the causes for the messages have been rem-
edied.
Message memor
ymenu The on-board compute
rsaves certain display
messages .You can call up the display mes-
sages in the message memory.
X Press the =or; button on the steer-
ing wheel to select the Serv. menu.
If there are display messages, the multi-
function display shows 2 messages , for
example.
X Press the 9or: button to select the
entry, e.g. 2 messages .
X Press ato confirm.
X Press the 9or: button to scroll
through the display messages.
When the ignition is switched off, all display
messages are deleted apart from some high-
priority display messages. Once the causes of
the high-priority display messages have been
rectified, the corresponding display mes-
sages are also deleted. 228
Display messagesOn-board computer and displays

Safety systems
Display messages Possible causes/consequences and
M Solutions
!÷
currently unavail‐
able See Owner's
Manual ABS (Anti-lock Braking System), ESP
®
(Electronic Stability Pro-
gram), BAS (Brake Assist), the HOLD function, hill start assist and
ESP ®
trailer stabilisation are temporarily unavailable.
BAS and the adaptive brake lights may also have failed.
In addition, the ÷,åand! warning lamps light up in
the instrument cluster.
Possible causes:
R Self-diagnosis is not yet complete.
R The on-board voltage may be insufficient.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The steerability and braking characteristics may be severely affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
The danger of skidding and having an accident increases.
X Carefully drive on a suitable stretch of road making slight steer-
ing movements at a speed above 20 km/h.
If the display message disappears, the functions mentioned
above are available again.
If the display message continues to be displayed:
X Drive on carefully.
X Visit a qualified specialist workshop. !÷
inoperative See
Owner's Manual ABS, ESP
®
, BAS, the HOLD function, hill start assist and
ESP ®
trailer stabilisation are unavailable due to a malfunction.
BAS and the adaptive brake lights may also have failed.
In addition, the J,÷,åand! warning lamps light
up in the instrument cluster.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The steerability and braking characteristics may be severely affec-
ted. The braking distance in an emergency braking situation can
increase. Display messages
229On-board computer and displays Z