2012 MERCEDES-BENZ G-Class warning

Useful information ............................
152
Important safety notes ....................152
Displays and operation .................... 152
Menus and submenus ...................... 155
Display messages ............................. 165
Warning and
indicator lamps in the
instrument cluster ............................178 151
On-board computer and displays

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please
note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Please read the information on qualified
specialist workshops (Y page 20). Important safety notes
You will find an illustration of the instrument
cluster in the "At a glance" section
(
Y page 25).
G
WARNING
A driver's attention to the road and traffic
conditions must always be his/her primary
focus when driving.
For your safety and the safety of others,
selecting features through the multifunction
steering wheel should only be done by the
driver when

traffic and road conditions permit
it to be done safely.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h ), your vehicle is
covering a distance of 44 feet (approximately
14 m) every second. G
WARNING
No messages will be displayed if either the
instrument cluster or the multifunction
display is inoperative.
As a result, you will not be able to see
information about your driving conditions,
such as
R speed
R outside temperature
R warning/indicator lamps R
malfunction/warning messages
R failure of any systems
Driving characteristics may be impaired.
If you

must continue to drive, do so with added
caution. Contact an authorized Mercedes-
Benz Center as soon as possible. G
WARNING
Malfunction and warning messages are only
displayed for certain systems and are
intentionally not very detailed. The
malfunction and warning messages are
simply a reminder with respect to the
operation of certain systems. They do not
replace the owner's and/or driver's
responsibility to maintain the vehicle's
operating safety. Have all required
maintenance services and safety checks
performed on

the vehicle. Bring the vehicle to
an authorized Mercedes-Benz Center to
address the malfunction and warning
messages. Displays and operation
Tachometer
The red

band in the tachometer indicates the
engine's overrevving range.
! Do not drive in the overrevving range, as
this could damage the engine.
The fuel supply is interrupted to protect the
engine when the red band is reached. Displaying the coolant temperature
G
WARNING
Driving when your engine is overheated can
cause some

fluids which may have leaked into
the engine compartment to catch fire. You
could be seriously burned.
Steam from an overheated engine can cause
serious burns which can occur just by opening 152
Displays and operation
On-board computer and displays

the engine hood. Stay away from the engine
if you see or hear steam coming from it.
Stop the vehicle in a safe location away from
other
traffic.
Turn off the engine, get out of the
vehicle and do not stand near the vehicle until
the engine has cooled down.
The coolant temperature gauge is in the
instrument cluster on the left-hand side.
Under normal driving conditions, with the
correct anti-corrosion and antifreeze additive
concentration, the reading may rise to
248 ‡(120 †).
! If the coolant temperature exceeds
248 ‡(120 †) do not continue driving. The
engine will otherwise be damaged. Outside temperature display
The outside temperature display is in the
multifunction display (Y

page 154).G
WARNING
The outside temperature indicator is not
designed to serve as an ice-warning device
and is therefore unsuitable for that purpose.
Indicated temperatures just above the
freezing point

do not guarantee that the road
surface is free of ice. The road may still be icy,
especially in wooded areas or on bridges.
Changes in the outside temperature are
displayed after a short delay. Operating the on-board computer
The on-board computer is activated as soon
as you

turn the SmartKey to position 1 in the
ignition lock.
You can control the multifunction display and
the settings in the on-board computer using
the buttons on the multifunction steering
wheel. :
Multifunction display
;
WX
Selects submenus in the

Settings
menu
Changes values
Adjusts the volume =
~
Rejects or ends a call
Exits phone book/redial memory
6
Makes or accepts a call
Switches to the redial memory
?
VU
Selects a menu: scrolls back and
forth Displays and operation
153
On-board computer and displays Z

Standard display menu
Standard display X
Press the V or U button on the
steering wheel to select the standard
display. Standard display
:
Trip odometer
; Odometer
You can select the following functions in the
Standard display menu using the & or
* button:
R tire pressure monitor (Y page 249)
R digital speedometer or outside
temperature ( Y page 156)
R Service display (Y

page 215)
R G 55 AMG: oil level ( Y page 211)
X To reset the trip odometer: press and
hold the reset button in the instrument
cluster until the trip odometer is reset.
Displaying the digital speedometer or
outside temperature If you have selected the digital speedometer
as the status line (
Y
page 159), the outside
temperature is displayed here 10
. G
WARNING
The outside temperature indicator is not
designed to serve as an ice-warning device
and is therefore unsuitable for that purpose. Indicated temperatures just above the
freezing
point

do not guarantee that the road
surface is free of ice. The road may still be icy,
especially in wooded areas or on bridges. Digital speedometer (example)
Outside temperature (example)
X
Press the
V or U button on the
steering wheel to select the standard
display.
X Press the & or * button on the
steering to select digital speedometer :
or the outside temperature. Audio menu
Selecting a radio station i
SIRIUS XM satellite radio acts like a
normal radio.
For more information on satellite radio
operation, see the separate operating
instructions.
10 Vehicles for the United Kingdom: the outside temperature is always displayed.156
Menus and submenus
On-board computer and displays

X
Press the W or X button to activate
or deactivate the Headl. Delayed
Switch Off function.
X Before switching off the engine, turn the
light switch to position Ã.
The exterior lighting delayed switch-off is
activated.
X Press the &, V or U button to
select a different display.
Deactivating the delayed switch-off
temporarily:
X Before leaving the vehicle, turn the
SmartKey to
position 0 in the ignition lock.
X Turn the SmartKey to position 2 in the
ignition lock and back to position 0.
The delayed switch-off is deactivated.
Delayed switch-off is reactivated the next
time you start the engine.
Activating/deactivating the interior
lighting delayed switch-off
If the Interior Light. Delay. Sw. Off:
function is activated and you pull the
SmartKey out

of the ignition lock, the interior
lighting remains on for around 10 seconds.
X Press the V or U button on the
steering wheel to select the Settings
menu.
X Press the & button
to select submenus.
X Press the W or X
button to select the
Lighting submenu.
X Press the & button
to select Interior
Light. Delay Sw. Off.
X Press the W or X button to activate
or deactivate Interior Light. Delay.
Sw. Off.
X Press the &, V or U button to
select a different display. Vehicle Activating/deactivating the automatic
door locking feature
If you select the Automatic Locking
function,
the

vehicle is centrally locked above
a speed of around 9 mph (15 km/h).
i For more information on the automatic
locking feature, see ( Y page 66).
X Press the V or U button on the
steering wheel to select the Settings
menu.
X Press the & button
to select submenus.
X Press the W or X
button to select the
Vehicle submenu.
X Press the & button to select
Automatic Door Lock.
X Press the W or X button to switch
the Automatic Door Lock feature on or
off.
X Press the &, V or U button to
select a different display.
Convenience Activating/deactivating the EASY-
ENTRY/EXIT feature
You can use the
Easy-entry Function to
activate or deactivate the EASY-ENTRY/EXIT
feature ( Y page 83). G
WARNING
You must make sure no one can become
trapped or injured by the moving steering
wheel when the easy-entry/exit feature is
activated.
To stop steering wheel movement do one of
the following:
R Move steering wheel adjustment stalk.
R Press one

of the memory position buttons.
R Press the memory button.
Do not leave children unattended in the
vehicle, or with access to an unlocked vehicle.
Children could open the driver's door and Menus and submenus
161
On-board computer and displays
Z

Calling up the range
X
Press the V or U button to select
From Start.
X Press the & or * button to select
Range:.
The multifunction display shows the
estimated range of the vehicle, based on
the current driving style and the fuel level.
If there is only a small amount of fuel
remaining in the fuel tank, a gas pump
7 appears instead of the range. Telephone menu
Introduction You can establish a Bluetooth
®
connection to
COMAND (see the separate operating
instructions). G
WARNING
A driver's attention to the road must always
be his/her primary focus when driving. For
your safety and the safety of others, we
recommend that you pull over to a safe
location and stop before placing or taking a
telephone call. If you choose to use the
telephone while

driving, please use the hands-
free device and only use the telephone when
weather, road and traffic conditions permit.
Some jurisdictions prohibit the driver from
using a mobile phone while driving a vehicle.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h ), your vehicle is
covering a distance of 44 feet (approximately
14 m) every second.
X Switch on the mobile phone and COMAND
(see the separate operating instructions).
X Press the V or U button on the
steering wheel to select the Telephone
menu.
You will see one of the following display
messages in the multifunction display: R
Ready or

the name of the network provider:
the mobile phone has found a network and
is ready to receive.
R Bluetooth Ready : the mobile phone is not
yet connected via Bluetooth ®
to COMAND.
R No Service: no network is available.
Accepting a call If someone calls you when you are in the
Telephone
menu,

a display message appears
in the multifunction display, for example: COMAND display (example)
X
Press the 6 button on the steering
wheel to accept an incoming call.
If you are not in the Telephone menu,
you can
still accept a call.
Rejecting or ending a call X
Press the ~ button on the steering
wheel.
If you are not in the Telephone menu,
you can
still accept a call.
Dialing a number from the phone book You can enter new telephone numbers into
the
phone

book via the mobile phone (see the
separate operating instructions). If your
mobile phone is operational, you can select
and dial a number from the phone book at any
time. Menus and submenus
163
On-board computer and displays Z

Display messages
General notes
G
WARNING
All categories of messages contain important information which should be taken note of and,
where a
malfunction is indicated, addressed as soon as possible at an authorized Mercedes-Benz
Center.
Failure to repair the condition noted may cause damage not covered by the Mercedes-Benz
Limited Warranty, or result in property damage or personal injury.
Display messages appear in the multifunction display.
Display messages with graphic displays may be shown in simplified form in the Operator's
Manual and may differ from the messages shown in the multifunction display.
Please respond in accordance with the display messages and follow the additional notes in
this Operator's Manual.
Certain display messages are accompanied by an audible warning tone or a continuous tone. Hiding display messages
You can hide some display messages with a low priority.
X Press
the
V, U, & or *
button on the steering wheel to select another display.
or
X Press the reset button on the instrument cluster ( Y page 25).
The display message is cleared.
Display messages with a high priority are shown in 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 remedied. Message memory menu
The on-board

computer saves certain display messages. You can call up the display messages
in the message memory menu.
The message memory menu is only shown if any display messages have been stored.
X Press the V or U button repeatedly, until either the original menu or the message
memory menu is shown.
If there are display messages, the multifunction display shows 2 Messages, for example.
X Press the & or * 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 messages are also deleted. Display messages
165
On-board computer and displays Z

G
WARNING
Driving with the message
Check
Brake
Fluid Level displayed can result in an accident. Have
your brake system checked immediately.
Do not add brake fluid before checking the brake system. Overfilling the brake fluid reservoir can
result in spilling brake fluid on hot engine parts and the brake fluid catching fire. You can be
seriously burned. Display messages Possible causes/consequences and
M
Solutions
#
Brake Wear The brake pads/linings have reached their wear limit.
X
Have the brake pads/linings replaced as soon as possible at a
qualified specialist workshop. G
Tele Aid
Inoperative USA only: one or more main functions of the mbrace system are
malfunctioning.
Canada only: one or more main functions of the TELEAID system
are malfunctioning.
X
USA only: have the mbrace system checked at a qualified
specialist workshop.
X Canada only: have the TELEAID system checked at a qualified
specialist workshop. +
Restraint System
Malfunction
Service Required G
Risk of injury
The restraint systems are malfunctioning.
X Visit a qualified specialist workshop immediately. G
WARNING
In the event a malfunction of the SRS is indicated as outlined above, the SRS may not be
operational.
For your safety, we strongly recommend that you contact an authorized Mercedes-Benz Center
immediately to

have the system checked. Otherwise the SRS may not be activated when needed
in an accident, which could result in serious or fatal injury, or it might deploy unexpectedly and
unnecessarily which could also result in injury. Display messages
167
On-board computer and displays Z