2013 MERCEDES-BENZ G-Class Owner's Manual

Deactivating the cooling with air dehumidification function
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 goes out. The cooling with air dehumidification
function has a delayed switch-off feature. Operating the climate control systems
127Climate control Z

USA only
:
Sets the temperature, left ( Y page 131)
; Defrosts the windshield ( Y page 131)
= Switches maximum cooling MAX COOL on/off ( Y page 132)
? 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 goes out. The cooling with air dehumidification
function has a delayed switch-off feature. 128
Operating the climate control systemsClimate control

Problems with the cooling with air dehumidification function
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)
When you press the Á button, the indicator lamp in the button flashes three times or
remains off. You can no longer switch on the cooling with air dehumidification function.
X Visit a qualified specialist workshop. Operating the climate control systems
129Climate control Z

USA only
:
Sets the temperature, left ( Y page 131)
; Defrosts the windshield ( Y page 131)
= Switches maximum cooling MAX COOL on/off ( Y page 132)
? 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)
When you press the Á button, the indicator lamp in the button flashes three times or
remains off. You can no longer switch on the cooling with air dehumidification function.
X Visit 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 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.130
Operating the climate control systems
Climate control

X
Turn the SmartKey to position
2 (Y page 139) 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 deactivate: press the _ button.
or
X Press the I or K button.
The
indicator lamp in the à button goes
out. Setting the temperature
You can set the temperature separately for
the driver's and front-passenger sides with
controls : or B(Y page 119).
X Turn the SmartKey to position
2 (Y page 139) in the ignition lock.
X Set control : or B(Y page 119) to the
desired temperature.
Only change the temperature setting in
small increments. Start at

72 ‡ (22 †).Setting the air distribution
X Turn the SmartKey to position
2 (Y page 139) in the ignition lock.
X Press the _ button repeatedly until the
desired symbol appears in the display.
P Directs the airflow through the center
vents
O Directs the airflow through the
footwell air vents
S Directs the airflow through the center
and footwell vents
¯ Directs air through the defroster vents
b Canada only: directs the airflow
through

the defroster and center vents a
Directs air through the defroster and
footwell vents
_ Canada only: directs the airflow
through

the defroster, center and side
air vents and the footwell Setting the airflow
X Turn the SmartKey to position
2 (Y page 139) in the ignition lock.
X To increase: press the K button.
X To reduce: press the I button.
i The airflow from the rear-compartment
vents and the center vents is the same. Activating/deactivating the zone
function
X To switch on: press the á button.
The
indicator lamp in the á button lights
up.
i The temperature setting for the driver's
side

is not adopted for the front-passenger
side and the rear compartment. The
temperature for the front-passenger side
and the rear compartment must be set
separately.
X To switch off: press button á.
The

indicator lamp in the á button goes
out.
i The temperature setting for the driver's
side

is adopted for the front-passenger side
and the rear compartment. Defrosting the windshield
You can use this function to defrost the
windshield or to defrost the inside of the
windshield and the side windows.
i You should only select the defrosting
function

until the windshield is clear again. Operating the climate control systems
131
Climate control Z

X
Turn the SmartKey to position
2 (Y page 139) in the ignition lock.
X To activate: press the ¬ button.
The indicator lamp in the ¬ button lights
up.
The climate control system switches to the
following functions:
R cooling with air dehumidification (only
with engine running)
R high airflow (depending on the outside
temperature)
R high temperature (depending on the
outside temperature)
R air distribution to the windshield and
front side windows
R air-recirculation mode off
X To deactivate: press the ¬ button.
The
indicator lamp in the ¬ button goes
out. The previously selected settings are
restored. The cooling with air
dehumidification function remains on. Air-
recirculation mode remains deactivated.
or
X Press the à button.
The

indicator lamp in the ¬ button goes
out. Airflow and air distribution are set to
automatic mode.
or
X Turn controls : or B clockwise or
counter-clockwise ( Y page 119).
or
X Press the K or I button. Activating/deactivating MAX COOL
maximum cooling
The MAX COOL function is only available in
vehicles for the USA. MAX COOL is only operational when the
engine is running.
X
To activate: press the Ù button.
The indicator lamp in the button lights up.
X To activate: press off-road button Ù
again.
The

indicator lamp goes out. The previously
selected settings are restored.
When you activate MAX COOL, climate
control switches to the following functions:
R maximum cooling
R maximum airflow
R air-recirculation mode on Defrosting the windows
Windows fogged up on the inside X
Activate the Á cooling with air
dehumidification function.
X Activate automatic mode Ã.
X If the windows continue to fog up, activate
the defrosting function

(Y page 131).
i You should only select this setting until
the windshield is clear again.
Windows fogged up on the outside X
Switch on the windshield wipers
(Y page 114).
X Press the _ button repeatedly until the
P or O symbol appears in the
display. 132
Operating the climate control systems
Climate control

i
You should only select this setting until
the windshield is clear again. Switching the windshield defroster
on/off
G
WARNING
Any accumulation of snow and ice should be
removed from the windshield before driving.
Otherwise, your vision may be impaired,
which could endanger you or others. X
Turn the SmartKey to position
2 (Y page 139) in the ignition lock.
X To switch on: press button ;.
Indicator lamp : lights up.
X To switch off: press button ;.
Indicator lamp : goes out.
i At outside temperatures above
50 ‡(10 †),
the windshield heating cannot
be activated. 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 heating otherwise switches
itself off automatically after 10 minutes.
i If you turn on the windshield heating for
the fourth consecutive time, the windshield
heating will automatically switch off after
5 minutes.
i If the vehicle's electrical system voltage
is too low because too many electrical consumers are switched on, indicator
lamp
: flashes. After approximately
30 seconds, the windshield heating turns
off automatically. 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.
X Turn the SmartKey to position
2 (Y page 139) in the ignition lock.
X USA only: press the ª button.
The
indicator lamp in the ª button lights
up or goes out.
i The rear window defroster has a high
current draw. You should therefore switch
it off as soon as the rear window is clear.
as it only switches off automatically after
several minutes.
i If the battery voltage is too low, the rear
window defroster may switch off.
Problems with the rear window
defroster If the indicator lamp in the
ª
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. Operating the climate control systems
133
Climate 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