2014 MERCEDES-BENZ G-Class cooling

Cargo compartment enlargement
Important safety note s.................. 258
Cargo tie down rings .........................261
CD player/CD changer (on-board
computer) .......................................... 211
Center console Overview .......................................... 32
Upper section .................................. 32
Central locking
Automatic locking (on-board
computer) ...................................... 216
Locking/unlocking (SmartKey) ........68
Changing bulbs
Reversing lamps ............................ 113
Side marker lamps .........................112
Turn signals (front) ......................... 111
Changing gears .................................. 148
Checklist After driving off-roa d...................... 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 ......................45
LATCH-type (ISOFIX) child seat
anchors ............................................ 57
Special seat belt retractor ...............56
Top Tether ....................................... 58
Troubleshooting ............................... 47
Chrome parts (cleaning
instructions) ...................................... 292
Cigarette lighter ................................ 264
Climate 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 .......................... 132Notes on using dual-zone
automatic climate control
..............120
Overview of systems ......................118
Problems with "cooling with air
dehumidification" ........................... 129
Problem with the rear window
defroster ........................................ 133
Refrigerant ..................................... 347
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) .......................................... 208
Convenience opening feature see Side windows
Coolant (engine)
Checking the level .........................285
Display message ............................ 229
Filling capacity ............................... 349
Notes ............................................. 348
Temperature (on-board computer) .217
Temperature gauge ........................ 205
Warning lamp ................................. 251
Cooling
see Climate control
Cornering light function
Function/notes ............................. 104
Cruise control
Cruise control lever .......................169
Display message ............................ 237
Driving system ............................... 1686
Index

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 Read the information on qualified
specialist workshops: (Y page 24).Overview of climate control systems
Important safety notes
G
WARNING
Severe conditions (e.g. strong air pollution)
may require replacement of the filter before
its scheduled replacement interval. A clogged
filter will reduce the air volume to the interior
and the windows could fog up, impairing
visibility and endangering you and others.
Have a blocked filter replaced at a Mercedes-
Benz Center as soon as possible.
Observe the settings recommended on the
following pages. The windows could
otherwise fog up. This could prevent you from
observing the traffic conditions, thereby
causing an accident.
Dual-zone automatic climate control
regulates the temperature and the humidity
in the vehicle interior and filters undesirable
substances from the air.
Automatic climate control is only operational
when the engine is running. Optimum
operation is only achieved if you drive with the
side windows and sliding sunroof closed.
The climatic comfort deteriorates whilst the
sliding sunroof is open. The automatic climate
control cannot maintain the set temperature
with the sliding sunroof open. You have to
adjust the climate control manually. i
The residual heat function can only be
activated or deactivated with the ignition
switched off.
i The residual heat function can only be
activated or deactivated with the ignition
switched off (Y page 134).
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the
convenience opening feature (Y page 78).
This will speed up the cooling process and
the desired vehicle interior temperature
will be reached more quickly.
i The integrated filter can filter out most
particles of dust, and completely filters out
pollen. A clogged filter reduces the amount
of air supplied to the vehicle interior. For
this reason, you should always observe the
interval for replacing the filter, which is
specified in the Maintenance Booklet. As it
depends on environmental conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Maintenance
Booklet. 118
Overview of climate control systemsClimate control

Control panel for dual-zone automatic climate control
Canada only
0043
Sets the temperature, left (Y page 131)
0044 Defrosts the windshield (Y page 131)
0087 Switches the ZONE function on/off (Y page 131)
0085 Activates/deactivates cooling with air dehumidification ( Ypage 124)
0083 Switches the rear window defroster on/off(Y page 133)
0084 Sets the temperature, right (Y page 131)
006B Activates/deactivates air-recirculation mode (Y page 134)
006C Sets the air distribution (Y page 131)
006D Increases the airflow (Y page 131)
006E Reduces the airflow ( Ypage 131)
006F Display
0070 Switches climate control on/off (Y page 121)
0071 Sets climate control to automatic (Y page 130) Overview of climate control systems
119Climate control Z

USA only
0043
Sets the temperature, left (Y page 131)
0044 Defrosts the windshield (Y page 131)
0087 Switches maximum cooling MAX COOL on/off (Y page 132)
0085 Activates/deactivates cooling with air dehumidification (Y page 124)
0083 Switches the rear window defroster on/off(Y page 133)
0084 Sets the temperature, right (Y page 131)
006B Activates/deactivates air-recirculation mode (Y page 134)
006C Sets the air distribution (Y page 131)
006D Increases the airflow (Y page 131)
006E Reduces the airflow (Y page 131)
006F Display
0070 Switches climate control on/off (Y page 121)
0071 Sets climate control to automatic (Y page 130)Information about using dual-zone
automatic climate control
The following contains notes and
recommendations on optimum use of
automatic climate control.
R Activate climate control using the 0058and
0056 buttons. The indicator lamps in the
0058 and0056 buttons light up.
R Set the temperature to 72 ‡ (22 †).
R Only use the "defrosting" function briefly
until the windshield is clear again. R
Only use "air-recirculation" mode briefly,
e.g. if there are unpleasant outside odors
or when in a tunnel. The windows could
otherwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
R Use the ZONE function to adopt the
temperature settings on the driver's side
for the front-passenger side as well. The
indicator lamp in the 00D6button goes out. 120
Overview of climate control systemsClimate control

Operating the climate control systems
Switching climate control on/off
Points to observe before use G
WARNING
When the climate control system is deactivated, the outside air supply and circulation are also
deactivated. Only choose this setting for a short time. Otherwise the windows could fog up,
impairing visibility and endangering you and others.
Switching climate control on Canada only
0043
Sets the temperature, left (Y page 131)
0044 Defrosts the windshield (Y page 131)
0087 Switches the ZONE function on/off (Y page 131)
0085 Activates/deactivates cooling with air dehumidification ( Ypage 124)
0083 Switches the rear window defroster on/off(Y page 133)
0084 Sets the temperature, right (Y page 131)
006B Activates/deactivates air-recirculation mode (Y page 134)
006C Sets the air distribution (Y page 131)
006D Increases the airflow (Y page 131)
006E Reduces the airflow ( Ypage 131)
006F Display
0070 Switches climate control on/off (Y page 121)
0071 Sets climate control to automatic (Y page 130) Operating the climate control systems
121Climate control Z

X
Turn the SmartKey to position 2(Y page 139) in the ignition lock.
X Press the 0058button.
The indicator lamp in the 0058button lights up. Airflow and air distribution are set to
automatic mode.
or
X Press the 0078button.
The indicator lamp in the 0078button goes out. The previously selected settings are
restored. USA only
0043
Sets the temperature, left (Y page 131)
0044 Defrosts the windshield (Y page 131)
0087 Switches maximum cooling MAX COOL on/off (Y page 132)
0085 Activates/deactivates cooling with air dehumidification ( Ypage 124)
0083 Switches the rear window defroster on/off(Y page 133)
0084 Sets the temperature, right (Y page 131)
006B Activates/deactivates air-recirculation mode (Y page 134)
006C Sets the air distribution (Y page 131)
006D Increases the airflow (Y page 131)
006E Reduces the airflow ( Ypage 131)
006F Display
0070 Switches climate control on/off (Y page 121)
0071 Sets climate control to automatic (Y page 130)122
Operating the climate control systemsClimate control

X
Turn the SmartKey to position 2(Y page 139) in the ignition lock.
X Press the 0058button.
The indicator lamp in the 0058button lights up. Airflow and air distribution are set to
automatic mode.
or
X Press the 0078button.
The indicator lamp in the 0078button goes out. The previously selected settings are
restored.
Switching off climate control Canada only
0043
Sets the temperature, left (Y page 131)
0044 Defrosts the windshield (Y page 131)
0087 Switches the ZONE function on/off (Y page 131)
0085 Activates/deactivates cooling with air dehumidification ( Ypage 124)
0083 Switches the rear window defroster on/off(Y page 133)
0084 Sets the temperature, right (Y page 131)
006B Activates/deactivates air-recirculation mode (Y page 134)
006C Sets the air distribution (Y page 131)
006D Increases the airflow (Y page 131)
006E Reduces the airflow ( Ypage 131)
006F Display
0070 Switches climate control on/off (Y page 121)
0071 Sets climate control to automatic (Y page 130)
X Press the 0078button.
The indicator lamp in the 0078button lights up. Operating the climate control systems
123Climate control Z

USA only
0043
Sets the temperature, left (Y page 131)
0044 Defrosts the windshield (Y page 131)
0087 Switches maximum cooling MAX COOL on/off (Y page 132)
0085 Activates/deactivates cooling with air dehumidification (Y page 124)
0083 Switches the rear window defroster on/off(Y page 133)
0084 Sets the temperature, right (Y page 131)
006B Activates/deactivates air-recirculation mode (Y page 134)
006C Sets the air distribution (Y page 131)
006D Increases the airflow (Y page 131)
006E Reduces the airflow (Y page 131)
006F Display
0070 Switches climate control on/off (Y page 121)
0071 Sets climate control to automatic (Y page 130)
X Press the 0078button.
The indicator lamp in the 0078button lights up. Activating/deactivating cooling with air dehumidification
Points to observe before use G
WARNING
If you switch off the cooling function, the vehicle will not be cooled when weather conditions are
warm. The windows can fog up more quickly. Window fogging may impair visibility and endanger
you and others.
The "Cooling with air dehumidification" function is only available when the engine is running.
The air inside the vehicle is cooled and dehumidified according to the temperature selected. 124
Operating the climate control systemsClimate control