Mercedes-Benz E-Class 2010 Owner's Manual page 127

Operating climate control systems
124
Operating climate control systems
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 briefly;
otherwise, the windows may mist up.
i
Activate climate control primarily using
the à button (
Activating/deactivating
Turn the key to position 2 in the ignition
X
lock.
To activate: press the à button.
X
The indicator lamp above the à button
lights up. Airflow and air distribution are set
to automatic mode.
or
Press the ^ button.
X
The indicator lamp above the ^ button
goes out. The previously selected settings
come into effect again.
To deactivate: press the ^ button.
X
The indicator lamp above the ^ button
lights up.
Switching cooling with air dehumidi-
fication on/off
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
Risk of accident
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
more quickly. This may prevent you from
page 124).
Y
observing the traffic conditions, thereby caus-
ing an accident.
Condensation may drip from the underside of
the vehicle when THERMOTRONIC is in cool-
ing mode. This is normal and not a sign that
there is a malfunction.
i
The cooling with air dehumidification
function uses refrigerant R134a. This cool-
ant does not contain chlorofluorocarbons,
and therefore does not damage the ozone
layer.
Switching on/off
To switch on: press the ¿ button.
X
The indicator lamp above the ¿ button
lights up.
To switch off: press the ¿ button.
X
The indicator lamp above the ¿ button
goes out. The cooling with air dehumidifi-
cation function has a delayed switch-off
feature.
Problems with the "cooling with air
dehumidification" function
If the indicator lamp in the ¿ button does
not go out when switched off, the cooling with
air dehumidification function is switched off
due to a malfunction. You can no longer
switch on the cooling with air dehumidifica-
tion function.
Consult a qualified specialist workshop.
X
Setting climate control to automatic
In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the tem-
perature of the dispensed air, the airflow and
the air distribution.
Automatic mode will achieve optimal opera-
tion if cooling with air dehumidification is also
activated. If desired, cooling with air dehu-
midification can be deactivated.