2012 MERCEDES-BENZ G-Class interior lights

Problems with the cooling with air
dehumidification function
If the indicator lamp in the
Á button does
not go out or flashes when switched on, the
cooling with air dehumidification function is
switched off
due to a malfunction. You can no
longer switch on the cooling with air
dehumidification function.
X Consult a qualified specialist workshop. Setting climate control to automatic
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.
In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the
temperature of the dispensed air, the airflow
and the air distribution.
Automatic mode will achieve optimal
operation if cooling with air dehumidification
is also activated. If desired, cooling with air
dehumidification can be deactivated.
X Turn the SmartKey to position 2 in the
ignition lock.
X Set the desired temperature.
X To switch on: press the à button.
The indicator

lamp in the à button lights
up. Automatic air distribution and airflow
are activated.
X To switch off: press the à button.
The indicator

lamp in the à button goes
out. Automatic air distribution and airflow
are deactivated. Setting the temperature
Different temperatures can be set for the
driver's and front-passenger sides. X
Turn the SmartKey to position 2 in the
ignition lock.
X To increase/reduce: turn controls ;
and
= clockwise or counterclockwise
(Y page 105).
Only change the temperature setting in
small increments. Start at 72 ‡ (22 †).
i If you

turn the temperature control on one
side of the vehicle fully clockwise or
counterclockwise, you will increase or
reduce the temperature on the other side
of the vehicle at the same time. Setting the air distribution
You can set the air distribution for the entire
vehicle.
The symbols for the air distribution have the
following meanings: Symbol Meaning
M
Directs the airflow through the
defroster vents to the
windshield and side windows
Q
Directs the airflow to the entire
vehicle interior
O
Directs the airflow through the
footwell and side air vents
P
Directs the airflow through the
center and side air vents
X
Turn the SmartKey to position 2 in the
ignition lock.
X Press the à button.
The indicator

lamp in the à button goes
out.
X Turn control ?(Y page 105) to the
corresponding symbol. The control can
also be turned to the area between two
symbols. Operating the climate control system
107
Climate control Z

Otherwise, your vision may be impaired,
which could endanger you or others.
i
At outside temperatures over
50 ‡ (10 † ) the windshield defroster
cannot be switched on. Indicator lamp ;
lights up briefly when you attempt to
activate it and then goes out again.
i The windshield defroster has a high
current draw. You should therefore switch
it
off as soon as the windshield is clear. The
windshield defroster switches off
automatically after ten minutes.
i If you switch on the windshield defroster
four times in a row, it switches off
automatically after five minutes.
i If too many electrical consumers are
switched on simultaneously and the
battery voltage is too low, indicator
lamp ; flashes in windshield defroster
switch :. After about 30 seconds the
windshield defroster switches off.
X Turn the SmartKey to position 2 in the
ignition lock.
X Press button : on the windshield
defroster.
Indicator lamp ; lights up or goes out. Switching the rear window defroster
on/off
Activating/deactivating G
WARNING
Any accumulation of snow and ice should be
removed from

the rear window before driving.
Visibility could otherwise be impaired,
endangering you and others.
The rear window defroster has a high current
draw. You should therefore switch it off as
soon as the window is clear. as it only
switches off automatically after several
minutes.
If the battery voltage is too low, the rear
window defroster may switch off.
X Turn the SmartKey to position 2 in the
ignition lock.
X To switch on, press the ª 7
or £ 8
button.
The indicator lamp in the ª7
or £ 8
button goes off.
Problems with the rear window
defroster If the indicator lamp in the
ª
7
or £ 8
rear window

defroster button flashes, the on-
board voltage is too low. The rear window
defroster has deactivated prematurely or
cannot be activated.
X Switch off any consumers that are not
required, e.g. reading lamps or interior
lighting.
When the battery is sufficiently charged,
the rear window defroster is activated
again automatically.
7 USA only.
8 Canada only. Operating the climate control system
109
Climate control Z

Activating/deactivating air-
recirculation mode
You can deactivate the flow of fresh air if
unpleasant odors are entering the vehicle
from outside. The air already inside the
vehicle will then be recirculated. 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 button
z or ¥.
X Turn the SmartKey to position 2 in the
ignition lock.
X To switch on: press the g button.
The indicator

lamp in the g button lights
up.
i Air-recirculation mode is activated
automatically at high outside
temperatures. When

air-recirculation mode
is activated automatically, the indicator
lamp in the g button is not lit.
Outside air is added after about 30
minutes.
X To switch off: press the g button.
The indicator

lamp in the g button goes
out.
i Air-recirculation mode switches off
automatically:
R after approximately five minutes if
outside temperatures

are less than about
41 ‡ (5 †)
R after approximately five minutes if
cooling with air dehumidification is
deactivated
R after approximately 30 minutes if outside
temperatures are over about
41 ‡ (5 †) Activating/deactivating the residual
heat function
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 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 switch off: press the Á button.
The indicator

lamp in the Á button goes
out.
i Residual heat is deactivated
automatically:
R after about 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.
Always keep sufficient distance between
unprotected parts of the body and the air
vents. If necessary, use the air distribution 110
Setting the air vents
Climate control