Mercedes-Benz 2013 M Class - Manual (Page 147)

Activating/deactivating cooling with
air dehumidification
Points to observe before use
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. Only deactivate the cooling
with air dehumidification function for a short
time to prevent the windows from fogging up.
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.
Condensation may drip from the underside of
the vehicle when it is in cooling mode. This is
normal and not a sign that there is a
malfunction.
Activating/deactivating
Example: ¿ button
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. The cooling with air
dehumidification function has a delayed
switch-off feature.
Problems with the "cooling with air
dehumidification" function
When you press the ¿ 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
Points to observe before use
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. Only deactivate the cooling
with air dehumidification function for a short
time to prevent the windows from fogging up.
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 necessary, cooling with air
dehumidification can be deactivated.
In the rear compartment, you can also switch
climate control for the rear seats to automatic
mode using the à button.
Activating/deactivating
Operating the climate control systems
145
Climate control