Cooling With Air Dehumidification - Mercedes-Benz M-Class Operator's Manual

Operating the climate control system
128
Notes on using 3-zone automatic
climate control
The following contains notes and
recommendations on optimum operation of
automatic climate control.
Activate climate control using the à and
R
¿ buttons. The indicator lamps in the
à and ¿ buttons light up.
In automatic mode, you can also use the
R
ñ button to set a climate mode
(FOCUS/MEDIUM/DIFFUSE). The
MEDIUM level is recommended.
Set the temperature to 72 ‡ (22 †).
R
Only use the "defrosting" function briefly
R
until the windshield is clear again.
Only use "air-recirculation" mode briefly,
R
e.g. if there are unpleasant outside odors
or when in a tunnel. The windows could
otherwise fog up as, in air-recirculation
mode, no fresh air is drawn into the vehicle.
Use the ZONE function to adopt the
R
temperature settings on the driver's side
for the front-passenger side and the rear
compartment as well. The indicator lamp in
the á button goes out.
Use the residual heat function if you want
R
to heat or ventilate the vehicle interior
when the ignition is switched off. The
"residual heat" function can only be
activated or deactivated with the ignition
switched off.
Operating the climate control system
Activating/deactivating climate
control
Important information
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.
i
Switch on climate control primarily using
the à button (
In the rear compartment, you can also switch
climate control on and off using the à and
^ buttons.
Activating/deactivating
Turn the SmartKey to position 2 in the
X
ignition lock.
To switch on: press the à button.
X
The indicator lamp in the à button lights
up. Airflow and air distribution are set to
automatic mode.
or
Press the ^ button.
X
The indicator lamp in the ^ button goes
out. The previously selected settings come
into effect again.
To switch off: press the ^ button.
X
The indicator lamp in the ^ button lights
up.
Activating/deactivating the cooling
with air dehumidification function
Important information
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.
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.
Condensation may drip from the underside of
the vehicle when it is in cooling mode. This is
I n f o r ma t i o n P r o v i d e d b y :
page 129).
Y