Mercedes-Benz CLA Operator's Manual page 124

Overview of climate control systems
122
Activates/deactivates air-recirculation mode (
?
Sets the airflow (
A
Switches cooling with air dehumidification on/off (
B
Switches the rear window defroster on/off (
C
Notes on using climate control
Automatic climate control
The following contains notes and
recommendations on optimum use of the
automatic climate control.
Switch on the air-conditioning system by
R
turning control knob A clockwise to the
desired position (except position 0).
Set the temperature to 72 ‡ (22 †).
R
Recommendation for preventing
R
fogged up windows with low outside
temperatures or rain: switch ¯ on for
the air distribution and switch P and
O off if possible (
In air-recirculation mode, switch e off
( page 131).
Y
Set airflow control A to a setting between
3 and 6 ( page 128).
Y
Recommendation for rapid cooling or
R
heating of the vehicle interior: briefly set
airflow control A to a setting between 3
and 6 ( page 128).
Y
Recommendation for a constant
R
vehicle interior temperature: set airflow
control A to a setting between 1 and 3
( page 128).
Y
Recommendation for air distribution in
R
the winter: set O and ¯
( page 128).
Y
Recommendation for air distribution in
the summer: set P or P and ¯
( page 128).
Y
Only use the "Windshield defrosting"
R
function briefly until the windshield is clear
again.
Only use air-recirculation mode briefly, e.g.
R
if there are unpleasant outside odors or
page 128)
Y
page 128).
Y
page 131)
Y
page 125)
Y
page 130)
Y
when in a tunnel. The windows could
otherwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
Vehicles with COMAND: if you change the
R
settings of the climate control system, the
climate status display appears for three
seconds at the bottom of the screen in the
COMAND display. See also the separate
COMAND operating instructions. You will
see the current settings of the various
climate control functions.
ECO start/stop function
During automatic engine switch-off, the ECO
start/stop function only operates at a
reduced capacity. If you require the full
climate control output, you can switch off the
ECO start/stop function by pressing the ECO
button ( page 140).
Y