2013 MERCEDES-BENZ G-Class coolant temperature

Cargo compartment cover
Installing/removing .......................267
Notes/how to use ......................... 267
Opening and closing ...................... 267
Overview ........................................ 267
Cargo compartment enlargement
Important safety notes
..................264
Cargo tie down rings .........................267
CD player/CD changer (on-board
computer) .......................................... 216
Center console Overview .......................................... 32
Upper section .................................. 32
Central locking
Automatic locking (on-board
computer) ...................................... 220
Locking/unlocking (SmartKey) ........ 68
Changing bulbs
Important safety notes .................. 108
Overview of bulb types ..................109
Reversing lamps ............................ 113
Side marker lamps .........................112
Turn signals (front) ......................... 111
Changing gears .................................. 148
Checklist After driving off-road ...................... 166
Before driving off-road ................... 165
Child-proof locks
Important safety notes .................... 59
Rear doors ....................................... 59
Children
In the vehicle ................................... 54
Restraint systems ............................ 54
Child seat
Automatic recognition ..................... 44
Automatic recognition/air bag
deactivation, self-test ......................46
LATCH-type (ISOFIX) child seat
anchors ............................................ 57
Special seat belt retractor ............... 56
Top Tether ....................................... 58
Troubleshooting ............................... 47
Chrome parts (cleaning
instructions) ...................................... 298
Cigarette lighter ................................ 270Climate control
Controlling automatically ............... 130
Cooling with air dehumidification ..124
Defrosting the windows ................. 132
Defrosting the windshield .............. 131
Dual-zone automatic climate
control ........................................... 119
Important safety notes .................. 118
Indicator lamp ................................ 129
Maximum cooling .......................... 132
Notes on using automatic climate
control ........................................... 120
Overview of systems ......................118
Problems with "cooling with air
dehumidification" ........................... 129
Problem with the rear window
defroster ........................................ 133
Refrigerant ..................................... 354
Setting the air distribution .............131
Setting the airflow ......................... 131
Setting the air vents ......................134
Setting the temperature ................ 131
Switching air-recirculation mode
on/off ............................................ 134
Switching on/off ........................... 121
Switching residual heat on/off ...... 134
Switching the rear window
defroster on/off ............................ 133
Switching the ZONE function on/
off .................................................. 131
Windshield defroster ......................133
Cockpit
Overview .......................................... 28
see Instrument cluster
COMAND
see separate operating instructions
Combination switch ..........................103
Consumption statistics (on-board
computer) .......................................... 213
Convenience opening feature see Side windows
Coolant (engine)
Checking the level ......................... 291
Display message ............................ 234
Filling capacity ............................... 356
Notes ............................................. 354
Temperature (on-board computer) . 222 6
Index

Supplemental Restraint System
see SRS (Supplemental Restraint
System)

Surround lighting (on-board
computer) .......................................... 219
Suspension tuning SETUP (on-board computer) .......... 222
SUV
(Sport Utility Vehicle) .......................22
Switching air-recirculation mode
on/off ................................................. 134
Switching off the alarm (ATA) ............65T
Tachometer ........................................ 210
Tailgate Opening dimensions ...................... 357
Tail lamps
Display message

............................ 233
see Lights
Tank content
Fuel gauge ..................................... 209
Technical data
Capacities ...................................... 350
Tires ............................................... 344
Tires/wheels ................................. 344
Trailer Loads .................................. 358
Vehicle data ................................... 357
Wheels ........................................... 344
TELEAID
Call priority .................................... 276
Downloading destinations
(COMAND) ..................................... 277
Downloading routes .......................279
Emergency call .............................. 274
Geo fencing ................................... 280
Important safety notes .................. 272
Locating a stolen vehicle ............... 278
MB info call button ........................ 276
Remote vehicle locking .................. 277
Roadside Assistance button .......... 275
Self-test ......................................... 273
Speed alert .................................... 279
System .......................................... 273
Triggering the vehicle alarm ........... 280 Vehicle remote malfunction
diagnosis
....................................... 278
Vehicle remote unlocking .............. 277
Telephone
Accepting a call ............................. 217
Display message

............................ 246
Menu (on-board computer) ............ 216
Number from the phone book ........ 217
Redialing ........................................ 217
Rejecting/ending a call ................. 217
Telephone compartment ..................263
Temperature Coolant .......................................... 209
Coolant (on-board computer) ......... 222
Engine oil (on-board computer) ...... 222
Outside temperature ...................... 210
Setting (climate control) ................ 131
Theft deterrent systems
ATA (Anti-Theft Alarm system) .........65
Immobilizer ...................................... 64
Tilt/sliding sunroof
see Sliding sunroof
Time
see Separate Operator's Manual
Timing (RACETIMER) .........................222
Tire pressure Calling up (on-board computer) ..... 325
Checking manually ........................325
Display message ............................ 242
Maximum ....................................... 324
Notes ............................................. 323
Recommended ............................... 322
Table (single tires) .........................322
Tire pressure monitor
Checking the tire pressure
electronically ................................. 327
Warning message .......................... 327
Tire pressure monitoring system
Function/notes ............................. 325
Restarting ...................................... 327
Warning lamp ................................. 259
Tires
Aspect ratio (definition) ................. 339
Average weight of the vehicle
occupants (definition) .................... 338
Bar (definition) ............................... 338
Changing a wheel .......................... 340
Characteristics .............................. 33716
Index

Instrument cluster
Displays and controls
Function Page
:
Speedometer with segments 210
;
Multifunction display 212
=
Tachometer 210
?
Coolant temperature display 209
A
Fuel gauge
B
Instrument cluster lighting control 209Instrument cluster
29At a glance

Condensation may drip from the underside of the vehicle when it is in cooling mode. This is
normal and not a sign that there is a malfunction.
i
The cooling with air dehumidification function uses refrigerant R134a. This coolant does
not contain chlorofluorocarbons, and therefore does not damage the ozone layer.
Activating the cooling with air dehumidification function !
If the cooling with air dehumidification does not switch on, it is possible that the climate
control system has lost coolant.
Have the cooling with air dehumidification checked at a qualified specialist workshop. Canada only
:
Sets the temperature, left ( Y page 131)
; Defrosts the windshield ( Y page 131)
= Switches the ZONE function on/off ( Y page 131)
? Activates/deactivates cooling with air dehumidification ( Y page 124)
A Switches the rear window defroster on/off ( Y page 133)
B Sets the temperature, right ( Y page 131)
C Activates/deactivates air-recirculation mode (Y page 134)
D Sets the air distribution (Y page 131)
E Increases the airflow ( Y page 131)
F Reduces the airflow ( Y page 131)
G Display
H Switches climate control on/off ( Y page 121)
I Sets climate control to automatic (Y page 130)
X Press the Á button.
The indicator lamp in the Á button lights up. Operating the climate control systems
125Climate control Z

Activating/deactivating air-
recirculation mode
G
WARNING
Fogged windows impair visibility,
endangering you and others. If the windows
begin to fog on the inside, switching off the
air recirculation mode immediately should
clear interior window fogging. If interior
window fogging persists, make sure the air
conditioning is activated, or press the ¬
button.
X Turn the SmartKey to position
2 (Y page 139) in the ignition lock.
X To switch on: press the d button.
The indicator lamp in the d button lights
up.
i Air-recirculation mode is automatically
activated at high levels of pollution or at
high outside temperatures. When air-
recirculation mode is activated
automatically, the indicator lamp in the
d button is not lit.
Outside air is added after approximately
30 minutes.
X To deactivate: press the d button.
The
indicator lamp in the d button goes
out.
i Air-recirculation mode switches off
automatically:
R after approximately five minutes at
outside temperatures below
approximately

41 ‡
R after approximately five minutes if
cooling with air dehumidification is
deactivated
R after approximately 30 minutes at
outside temperatures above
approximately 41 ‡ (5 †) Activating/deactivating the residual
heat function
The "residual heat" function is only available
in Canada.
It

is possible to make use of the residual heat
of the engine to continue heating the
stationary 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
regardless of the airflow setting.
i If you activate the residual heat function
at high temperatures, only the ventilation
will be activated.
X Turn the SmartKey to position
0(Y page 139) in the ignition lock or
remove it.
X To activate: press the Á button.
The
indicator lamp in the Á button lights
up.
X To deactivate: press the Á button.
The
indicator lamp in the Á button goes
out.
i Residual heat is deactivated
automatically:
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 Setting the air vents
Important safety notes
G
WARNING
When operating the climate control, the air
that enters the passenger compartment
through the air vents can be very hot or very
cold

(depending on the set temperature). This
could cause burns or frostbite to unprotected
skin in the immediate area of the air vents. 134
Setting the air vents
Climate control

Problem Possible causes/consequences and
M SolutionsThe coolant
temperature display is
showing more than
248 ‡
(120 †). A
display message may
also appear in the
multifunction 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 291). Observe the warning
notes as you do so and add 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
sufficiently.
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-and-go traffic. Automatic transmission
Important safety notes
G
WARNING
If the engine speed is above the idling speed
and you engage transmission position D or
R,

the vehicle could pull away suddenly. There
is a risk of an accident.
When engaging transmission position D or R,
always firmly depress the brake pedal and do
not simultaneously accelerate. G
WARNING
The automatic transmission switches to
neutral position N when you switch off the
engine. The vehicle may roll away. There is a
risk of an accident.
After switching off the engine, always switch
to parking position P. Prevent the parked
vehicle from rolling away by applying the
parking brake.
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
transmission to position P and apply theparking 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
transmission directly from D to R, from R
to D or directly to P.
Do not open the driver's door while the
vehicle is in motion. At low speeds in
transmission

position D or R, park position
P is otherwise engaged automatically.
The transmission could be damaged. Automatic transmission
145
Driving and parking Z

Displays and operation
Instrument cluster
Instrument cluster: miles
:
Speedometer with segments (Y page 210)
; Multifunction display ( Y page 212)
= Tachometer (Y page 210)
? Coolant temperature ( Y page 209)
A Fuel gauge
B Instrument cluster lighting (Y page 209) Instrument lighting
The lighting in the instrument cluster, in the
displays and the controls in the vehicle
interior
can be adjusted using the brightness
control knob.
The brightness control knob is located on the
bottom left of the instrument cluster
(Y page 209).
X Turn the brightness control knob clockwise
or counter-clockwise.
If the light switch is set to Ã, T or
L, the brightness is dependent upon
the brightness of the ambient light.
i The
light sensor in the instrument cluster
automatically controls the brightness of
the multifunction display. In daylight, the displays in the instrument
cluster are not illuminated.
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
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 Displays and operation
209
On-board computer and displays
Z

vehicle and do not stand near the vehicle until
the engine has cooled down.
! A
display message is shown if the coolant
temperature is too high.
If the coolant temperature is over
248 ‡(120 †), do not continue driving. The
engine will otherwise be damaged.
The coolant temperature gauge is in the
instrument cluster on the right-hand side
(Y page 209).
Under normal operating conditions and with
the specified coolant level, the coolant
temperature may rise to 248 ‡ (120 †). Tachometer
! Do not drive in the overrevving range, as
this could damage the engine.
The

red band in the tachometer indicates the
engine's overrevving range.
The fuel supply is interrupted to protect the
engine when the red band is reached. Outside temperature display
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.
The outside temperature display is in the
multifunction display ( Y page 212).
Changes in the outside temperature are
displayed after a short delay. Speedometer with segments
The segments in the speedometer indicate
which speed range is available.
R Cruise control activated ( Y page 169):
The segments light up from the stored
speed to the maximum speed.
R Variable SPEEDTRONIC activated
(Y page 174):
The

segments light up from the start of the
scale to the selected limit speed.
R DISTRONIC PLUS activated (Y page 179):
One or two segments in the set speed
range light up.
R DISTRONIC PLUS detects a vehicle in front:
The segments between the speed of the
vehicle in front and the stored speed light
up. Operating the on-board computer
Overview :
Multifunction display
; To switch on the Voice Control System;
see the separate operating instructions
= Right control panel
? Left control panel
A Back button210
Displays and operation
On-board computer and displays