2013 MERCEDES-BENZ G-Class engine

X
Press : or 9 to select the
Surround Lighting function.
When the Surround Lighting function is
activated, the cone of light in the
multifunction display is shown in red.
X Press the a button to save the setting.
Deactivating delayed switch-off of the
exterior lighting temporarily:
X Before leaving the vehicle, turn the
SmartKey to position 0(Y page
139) in the
ignition lock.
X Turn the SmartKey to position 2 in the
ignition lock ( Y page 139).
The exterior lighting delayed switch-off is
deactivated.
Delayed switch-off of the exterior lighting is
reactivated the next time you start the
engine.
If you have activated the Surround
Lighting

function and the light switch is set
to Ã, the following functions are activated
when it is dark:
R Surround lighting: the exterior lighting
remains lit for 40 seconds after unlocking
with the SmartKey. If you start the engine,
the surround lighting is switched off and
automatic headlamp mode is activated
(Y page 100).
R Exterior lighting delayed switch-off: the
exterior lighting remains lit for
60 seconds after the engine is switched off.
If you close all the doors and the trunk lid,
the exterior lighting goes off after
15 seconds.
i Depending on your vehicle's equipment,
when the surround lighting and delayed
switch-off exterior lighting are on, the
following light up:
R Parking lamps
R Front fog lamps
R Low-beam headlamps
R Daytime running lamps
R Side marker lamps
R Surround lighting in the exterior mirrors Activating/deactivating the interior
lighting delayed switch-off
If you activate the Interior Lighting
Delay function, the interior lighting remains
on for 20 seconds

after you remove the
SmartKey from the ignition lock.
X Press the = or ; button on the
steering wheel to select the Sett. menu.
X Press the :
or 9 button to select the
Lights submenu.
X Press a to confirm.
X Press : or 9 to select the
Interior Lighting Delay function.
When the Interior Lighting Delay
function

is activated, the vehicle interior is
displayed in red in the multifunction
display.
X Press the a button to save the setting.
Vehicle Activating/deactivating the automatic
door locking mechanism
If you activate the Automatic Door Lock
function,

the vehicle is centrally locked above
a speed of around 9 mph (15 km/h).
X Press the = or ; button on the
steering wheel to select the Sett. menu.
X Press the :
or 9 button to select the
Vehicle submenu.
X Press a to confirm.
X Press : or 9 to select the
Automatic Door Lock function.
When

the Automatic Door Lock function
is activated, the vehicle doors are displayed
in red in the multifunction display.
X Press the a button to save the setting.
For further information on the automatic
locking feature, see ( Y page 75).220
Menus and submenus
On-board computer and displays

You can then only fold out the exterior mirrors
using button :.
Restoring the factory settings
X Press the = or ; button on the
steering wheel to select the Sett. menu.
X Press the : or 9 button to select the
Factory Setting submenu.
X Press a to confirm.
The Reset All Settings? message
appears.
X Press the : or 9 button to select
No or Yes.
X Press a to confirm the selection.
If you select Yes, the multifunction display
shows a confirmation message.
For safety reasons, the Daytime Running
Lights function in the Lights submenu is
only reset if the vehicle is stationary. AMG menu in AMG vehicles
AMG displays :
Digital speedometer
; Gear indicator
= Upshift indicator
? Engine oil temperature
A Coolant temperature
B Status indicator for ECO start/stop
function ( Y page 141)
X Press = or ; on the steering wheel
to select the AMG menu.
Upshift indicator UP = indicates that the
engine has reached the overrevving range
when in the manual gearshift program. Upshift indicator UP = fades out other
messages until you have shifted up.
If the engine oil temperature is below

176 ‡
(80 †), the oil temperature is shown in blue.
Avoid driving at full engine output 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 9 button repeatedly until
SETUP is displayed.
RACETIMER Displaying and starting 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
following posted speed limits. 222
Menus and submenus
On-board computer and displays

:
Lap
; RACETIMER
You can start the RACETIMER when the
engine is running or if the SmartKey is in
position 2(Y page 139) in the ignition lock.
X Press = or ; on the steering wheel
to select the AMG menu.
X Press the 9 button repeatedly until the
RACETIMER is shown.
X To start: press the a button to start the
RACETIMER.
Displaying the intermediate time X
Press the = or ; button to select
Interm. Time.
X Press a to confirm.
The intermediate time is displayed for five
seconds.
Starting a new lap :
RACETIMER
; Fastest lap time (best lap)
= Lap
X Press a to confirm New Lap.i
It is possible to store a maximum of
sixteen laps. The 16th lap can only be
completed with Finish Lap.
Stopping the RACETIMER X
Press the % button on the steering
wheel.
X Press a to confirm Yes.
The RACETIMER is interrupted if you stop the
vehicle and turn the SmartKey to position
1(Y

page 139) in the ignition lock. If you turn
the SmartKey to position 2 or
3(Y page 139) and then press a to
confirm Start, timing is continued.
Resetting the current lap
X Stop the RACETIMER ( Y page 223).
X Press = or ; to select Reset Lap.
X Press a to reset the lap time to "0".
Deleting all laps If you switch off the engine, the RACETIMER
is reset to "0" after 30 seconds. All laps are
deleted.
You cannot delete individual stored laps. If
you have stopped 16 laps, the current lap
does not have to be reset. Menus and submenus
223On-board computer and displays Z

Display messages Possible causes/consequences and
M Solutionsb
Check
Left Daytime
Running Light or 
Check Right
Daytime Running
Light The left or right-hand daytime running lamp is defective.
X
Visit a qualified specialist workshop. b
Malfunction See
Operator's Manual The exterior lighting is defective.
X
Visit a qualified specialist workshop. b
Auto

Lamp Function
Inoperative The light sensor is defective.
X
Visit a qualified specialist workshop. b
Switch Off Lights The lights are still switched on when you leave the vehicle. A
warning tone also sounds.
X
Turn the light switch to Ã.Engine
Display messages Possible causes/consequences and
M Solutions+
Check Coolant
Level See
Operator's Manual The coolant level is too low.
X
Add coolant, observing the warning notes before doing so
(Y page 291).
X Have the coolant system checked at a qualified specialist
workshop

if the coolant needs topping up more often than usual.? The fan motor is faulty.
X
At coolant temperatures below 248 ‡
(120 †), drive to the next
qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in
mountainous terrain and stop-start traffic.234
Display messages
On-board computer and displays

Display messages Possible causes/consequences and
M Solutions?
Coolant Too Hot
Stop Vehicle Turn
Engine Off The coolant is too hot.
A warning tone also sounds.
G WARNING
Do not drive when your engine is overheated. This can cause some
fluids which may have leaked into the engine compartment to
catch fire.
Steam from the overheated engine can also cause serious burns
which can occur just by opening the hood.
There is a risk of injury.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Y page 156).
X Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X Do not start the engine again until the display message goes out
and the coolant temperature is below
248 ‡ (120 †).
Otherwise, the engine could be damaged.
X Pay attention to the coolant temperature display.
X If the temperature increases again, visit a qualified specialist
workshop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to
248 ‡ (120 †).The poly-V-belt may have torn.
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Check the poly-V-belt.
If the poly-V-belt is torn:
! Do

not continue driving. The engine could otherwise overheat.
X Consult a qualified specialist workshop.
If the poly-V-belt is not damaged:
X Wait until the display message disappears before restarting the
engine. Otherwise, the engine could be damaged.
X Pay attention to the coolant temperature display.
X Visit a qualified specialist workshop. Display messages
235
On-board computer and displays Z

Display messages Possible causes/consequences and
M Solutions# The battery is not being charged.
A warning tone also sounds.
Possible causes are:
R
a defective alternator
R a torn poly-V-belt
R a malfunction in the electronics
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Open the hood.
X Check whether the poly-V-belt is torn.
If the poly-V-belt is torn:
! Do
not continue driving. The engine could otherwise overheat.
X Consult a qualified specialist workshop.
If the poly-V-belt is not damaged:
X Visit a qualified specialist workshop. 4
Check Engine Oil
At Next Refueling The engine oil level has dropped to the minimum level.
A warning tone also sounds.
X
Check the oil level when next refueling, at the latest
(Y page 289).
X If necessary, add engine oil ( Y page 291).
X Have the engine checked at a qualified specialist workshop if
engine oil needs to be added more often than usual.
! Avoid long journeys with too little engine oil. The engine will
otherwise be damaged.
Information on approved engine oils can be obtained from any
qualified specialist workshop or on the Internet at http://
www.mbusa.com (USA only). 4
Engine Oil Level
Low Stop Vehicle
Turn Engine Off The engine oil level is too low. There is a risk of engine damage.
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Add engine oil ( Y page 291) and check the oil level
(Y page 289). 236
Display messages
On-board computer and displays

Display messages Possible causes/consequences and
M Solutions4
Check Engine Oil
Level
(Add 1 quart) AMG vehicles: the engine oil level is too low.
X
Check the oil level when next refueling, at the latest
(Y page 289).
X If necessary, add engine oil ( Y page 291).
X Have the engine checked at a qualified specialist workshop if
engine oil needs to be added more often than usual.
! Avoid long journeys with too little engine oil. The engine will
otherwise be damaged.
Information on approved engine oils can be obtained from any
qualified specialist workshop or on the Internet at http://
www.mbusa.com (USA only). 4
Engine Oil Level
Cannot Be Measured The measuring system is malfunctioning.
X
Visit a qualified specialist workshop. 8
Fuel Level Low The fuel level has dropped into the reserve range.
X
Refuel at the nearest gas station. C There is only a very small amount of fuel in the fuel tank.
X
Refuel at the nearest gas station without fail. 8
Gas Cap Loose The fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.
X
Check that the fuel filler cap is correctly closed.
If the fuel filler cap is not correctly closed:
X Close the fuel filler cap.
If the fuel filler cap is correctly closed:
X Visit a qualified specialist workshop. Display messages
237
On-board computer and displays Z

Driving systems
Display messages Possible causes/consequences and
M SolutionsTC Shift
Conditions Not
Fulfilled
Apply Brake/
Parking Brake The parking brake has not been applied and the brake pedal has
not been depressed. The transfer case has canceled the gear
change
process and is in Neutral. There is no connection between
the engine and the drive wheels.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Depress the brake pedal and apply the parking brake.
X Shift the automatic transmission to neutral position N.
X Make sure all conditions for changing gears are met
(Y page 199).
X Repeat the gearshift process. TC Malfunction
Visit WorkshopTo
park, apply the
parking brake There is a malfunction in the transfer case.
X
Do not shift the transfer case.
X When parking, secure the vehicle against rolling away
(Y page 156).
X Have the vehicle checked at a qualified specialist workshop. TC Shift Canceled
Please Reactivate The transfer case has not performed the gear change process.
X
Repeat the gearshift process.
X Make sure all conditions for changing gears are met
(Y page 199). TC Shift Condition
Not Fulfilled
Drive at Max.
25 mph You have exceeded the maximum speed for the gearshift process.
X
Drive more slowly.
X Repeat the gearshift process. TC Shift Condition
Not Fulfilled
Shift to NEUTRAL You have not met one or more shift conditions.
X
Shift the automatic transmission to neutral position N.
X Repeat the gearshift process. TC shift condition
not fulfilled
Drive at Max.
40 mph You have exceeded the maximum speed for the gearshift process.
X
Drive more slowly.
X Repeat the gearshift process. LOW RANGE
On The transfer case is in the LOW RANGE off-road position.
HIGH RANGE
On The transfer case is in the HIGH RANGE on-road position.238
Display messages
On-board computer and displays