Mercedes-Benz 2012 C-Class Operator's Manual page 126

Overview of climate control systems
124
USA only
To set the temperature, left (
:
To defrost the windshield (
;
To switch maximum cooling MAX COOL on/off (
=
To activate/deactivate cooling with air dehumidification (
?
To switch the rear window defroster on/off (
A
To set the temperature, right (
B
To activate/deactivate air-recirculation mode (
C
To set the air distribution (
D
To increase the airflow (
E
To reduce the airflow (
F
To switch climate control on/off (
G
To set climate control to automatic (
H
Notes on using dual-zone automatic
climate control
The following contains notes and
recommendations on optimum use of dual-
zone automatic climate control.
Activate climate control using the à and
R
¿ buttons. The indicator lamps in the
à and ¿ buttons light up.
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
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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 as well. The
indicator lamp in the á button goes out.