2012 MERCEDES-BENZ G-CLASS SUV coolant temperature

SRS (Supplemental Restraint Sys-
tem)
Display message ............................ 233
Introduction ..................................... 39
Warning lamp ................................. 259
Warning lamp (function) ................... 39
Starting the engine
Important safety notes ..................144
Steering (display message) ..............250
Steering wheel Adjusting (electrically). ....................97
Buttons (on-board computer) ......... 213
Gearshift paddles ........................... 153
Important safety notes ....................97
Steering wheel heating ....................97
Storing settings (memory function) 102
Steering wheel gearshift paddles ....153
Steering wheel heating Malfunction indicator lamp ..............98
Stopwatch (RACETIMER) ................... 226
Stowage areas ................................... 267
Stowage compartment Map pockets .................................. 268
Stowage compartments
Armrest (underneath) ....................268
Cuph older..................................... 275
Glove compartment .......................267
Important safety information .........267
Summer tyres .................................... 323
Sun visor ............................................ 276
Supplemental Restraint System see SRS (Supplemental Restraint
System)
Supplement Restraint System
see SRS (Supplemental Restraint
System)
Surround lighting (on-board com-
puter) ................................................. .222
Suspension tuning SETUP (on-board computer) ..........226
Switching off the alarm (ATA) ............64 T
Tailgate Display message ............................ 249
Opening dimensions ......................348
Tailgate (Cabriolet)
Opening/closing .............................. 76
opening the cover ..........................304
Tail lamps
Display message ............................ 236
see Lights
Technical data
Capacities ...................................... 341
Information .................................... 338
Trailer loads ................................... 350
Tyres .............................................. 333
Tyres/wheels ................................. 333
Vehicle data ................................... 348
Wheels ........................................... 333
Telephone
Accepting acall............................. 219
Display message ............................ 251
Menu (on-board computer) ............218
Number from the phone book ....... .219
Redialling ....................................... 220
Rejecting/ending acall................. 219
Telephone compartment ..................268
Temperature Coolant .......................................... 212
Coolant (on-board computer) ......... 225
Engine oil (on-board computer) ...... 225
Outside temperature ..................... .212
Setting (climate control) ................131
TEMPOMAT
Function/notes ............................. 173
Theft-deterrent system
ATA (Anti-Theft Alarm system) .........64
Immobiliser ...................................... 64
Tilt/sliding sunroof
see Sliding sunroof
Time
see Separate Owner' smanual
Timing (RACETIMER) .........................226
Tonneau cover ..................................... 85
Top Tether ............................................ 52
Total distance recorder ....................215
Tow-away protection ..........................6516
Index

Instrumen
tcluster Displays and controls
i
Instrument cluster: kilometres Function Page
:
Speedometer with segments 212
;
Multifunction display 214
=
Rev counter 212
?
Coolant temperature gauge 212
A
Fuel gauge
B
Instrument cluster lighting control 212Instrument cluster
27At a glance

i
Instrument cluster: miles Function Page
:
Speedometer with segments
;
Multifunction display 214
=
Rev counter
?
Coolant temperature
A
Fuel gauge
B
Instrument cluster lighting control28
Instrument clusterAt a glance

ary vehicle for up to 30 minutes after the
engine has been switched off
.The heating
time depends on the coolant temperature and
on the interior temperature that has been set.
i The blower will run at a low speed regard-
less of the airflow setting.
i If you activate the residual heat function
at high temperatures, only the ventilation
will be activated.
X Turn the key to position 0(Ypage 143) in
the ignition lock or remove it.
X To activate: press theÁbutton.
The indicator lamp in the Ábutton lights
up.
X To deactivate: press theÁbutton.
The indicator lamp in the Ábutton goes
out.
i Residual heat is deactivated automati-
cally:
R after approximately 30 minutes
R when the ignition is switched on
R if the battery voltage drops
R if the coolant temperature is too low Auxiliary heating
Important safety notes 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
maximum of two times, drive for a longer
distance.
i Switch the auxiliary heating on regularly
once a month for approximately ten
minutes.
The auxiliary heating heats the air in the vehi-
cle interior without using the heat of the run-
ning engine. The auxiliary heating is operated
directly using the vehicle's fuel. For this rea-
son, the tank content must be at least at
reserve fuel level to ensure that the auxiliary
heating functions.
The auxiliary heating/ventilation automati-
cally adjusts to changes in temperature and
weather conditions. For this reason, the aux-
iliary heating could switch from ventilation
mode to heating mode or from heating mode
to ventilation mode.
You cannot use the auxiliary ventilation to
cool the vehicle interior to a temperature
lower than the outside temperature.
Before switching on X
Turn the key to position 2(Ypage 143) in
the ignition lock.
X Set the temperature.
The auxiliary heating/ventilation can be acti-
vated even when climate control is set to
manual. Optimum comfort can be attained
when the system is set to automatic mode.
Set the temperature to 22 †.
The auxiliary heating/ventilation can be acti-
vated or deactivated using the remote control
or the button on the centre console. 134
Operating the climate control systemClimate control

Problem Possible causes/consequences and
M Solutions
The coolant tempera-
ture display is showing
more than 120 †. A
display message may
also appearint
he mul-
tifunction display and a
warning tone may
sound. The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.
X Stop as soon as possible and allow the engine and the coolant
to cool down.
X Check the coolant level (Y page 293). Observe the warning
notes as you do so and top up the coolant if necessary. If the coolant level is correct, the radiator fan may be faulty. The
coolant is too hot and the engine is no longer being cooled suffi-
ciently.
X
If the coolant temperature is below 120 †, you can continue
driving to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in
mountainous terrain and stop-start traffic. Automatic transmission
Important safety notes
G
WARNING
If the engine speed is above the idling speed
and you engage transmission position Dor
R, the vehicle could pull away suddenly. There
is a risk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do
not simultaneously accelerate.
i Bear in mind that the power transmission
between the engine and the transmission
is interrupted when the engine is switched
off. Therefore, to prevent the vehicle from
rolling away, shift the automatic transmis-
sion to position Pand apply the parking
brake when the engine is switched off and
the vehicle is stationary. Selector lever
Overview of transmission positions !
If the engine speed is too high or if the
vehicle is rolling, do not shift the transmis- sion directly from
Dto R, from Rto Dor
directly to P.
Do not open the driver's door while the
vehicle is in motion. At low speeds in trans-
mission position Dor R, park position Pis
otherwise engaged automatically.
The transmission could be damaged. Selector lever
j
Park position
k Reverse gear
i Neutral
h Drive
When you select a transmission position, the
selector lever subsequently returns to its
original position. Automatic transmission
149Driving and parking Z

Displays and operation
Instrument cluster
Instrument cluster: kilometres
:
Speedometer with segments (Y page 212)
; Multifunction display (Y page 214)
= Rev counter (Y page 212)
? Coolant temperature ( Ypage 212)
A Fuel gauge
B Instrumen tcluster lighting (Y page 212) Instrument cluster: miles
:
Speedometer with segments (Y page 212)
; Multifunction display (Y page 214) Displays and operation
211On-board computer and displays Z

=
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

Switching the fold-in mirrors when lock-
ing function on/off
When you activate the
Auto. fold in mir‐
rors function, the exterior mirrors are folded
in when the vehicle is locked. When you
unlock the vehicle and then open a door, the
exterior mirrors fold out again.
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 Auto. fold in mirrors function.
If the Auto. fold in mirrors function is
activated, the vehicle's exterior mirror is
displayed in red in the multifunction dis-
play.
X Press the abutton to save the setting. :
To fold the exterior mirrors in or out
If you have switched the Auto. fold-infunction on and you fold the exterior mirrors
in using button :, they will not fold out auto-
matically (Y page 99).
You can then only fold out the exterior mirrors
using button :. Resetting to factory settings
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Factory settings submenu.X
Press ato confirm.
The Reset all settings? message
appears.
X Press the :or9 button to select
No or
Yes .
X Press the abutton to confirm the selec-
tion.
If you have selected Yes , the multifunction
display shows a confirmation message.
For safety reasons, not all functions are reset:
the Limit speed (winter tyres) function
in permanent SPEEDTRONIC can only be set
in the Vehicle submenu. If you want to reset
the Daytime driving lights in the
Light submenu, you must turn the key to position
1(Y
page 143) in the ignition lock. 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 func-
tion (Y page 145)
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 mes-
sages until you have shifted up.
If the engine oil temperature is below 80 †,
the oil temperature is shown in blue. Avoid Menus and submenus
225On-board computer and displays Z