Mercedes-Benz M-Class Owner's Manual page 127

Operating the climate control system
124
Switches rear-compartment climate control on/off (
Q
Reduces the airflow (
R
Notes on using THERMOTRONIC auto-
matic climate control
The following contains notes and recommen-
dations on optimum operation of
THERMOTRONIC 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 22 †.
R
Only use the demisting function briefly,
R
until the windscreen is clear again.
Only use the air-recirculation mode briefly,
R
e.g. if there are unpleasant outside odours
or when in a tunnel. The windows could
otherwise mist up as, in air-recirculation
mode, no fresh air is drawn into the vehicle.
Use the ZONE function to adopt the tem-
R
perature settings on the driver's side for
the front-passenger side and the rear com-
partment 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 resid-
ual heat function can only be activated or
deactivated with the ignition switched off.
Operating the climate control system
Switching climate control on/off
Important information
i
When climate control is switched off, the
air supply and air circulation are also
switched off. Only select this setting
page 127)
Y
page 124)
Y
briefly. Otherwise, the windows may mist
up.
i
Switch on climate control primarily using
the à button (
Y
In the rear compartment, you can also switch
climate control on and off using the à and
^ buttons.
Switching on/off
Turn the key to position 2 in the ignition
X
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 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 dehu-
midified according to the temperature selec-
ted.
G
WARNING
If the "cooling with air dehumidification" func-
tion is deactivated, the air inside the vehicle
will not be cooled (during warm weather) or
dehumidified. The windows could mist up
page 125).