Operating The Climate Control System - Mercedes-Benz E-Class Sedan 2012 Operator's Manual

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
normal and not a sign that there is a
malfunction.
i The cooling with air dehumidification
function uses refrigerant R134a. This
coolant does not contain
chlorofluorocarbons, and therefore does
not damage the ozone layer.
Activating/deactivating
X
To activate: press the ¿ button.
The indicator lamp above the ¿ button
lights up.
X
To switch off: press the ¿ button.
The indicator lamp above the ¿ 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
Consult 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

Operating the climate control system

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 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 desired, cooling with air
dehumidification can be deactivated.
X
Turn the SmartKey to position 2 in the
ignition lock.
X
Set the desired temperature.
X
To activate: press the à button.
The indicator lamp above the à button
lights up. Automatic air distribution and
airflow are activated.
i 3-zone automatic climate control: when
automatic mode is activated, you can
select a climate mode setting
( Y page 136).
X
To deactivate: press the air distribution
button.
Dual-zone automatic climate control: press
button F(
3-zone automatic climate control: press
button I(
The indicator lamp above the à button
goes out.
or
X
Press the airflow button.
Dual-zone automatic climate control: press
button G(
3-zone automatic climate control: press
button H(
The indicator lamp above the à button
goes out.
Y page 131).
Y page 133).
Y page 131).
Y page 133).
135
Z