Mercedes-Benz MY17 c-class Operator's Manual page 124

Operating the climate control systems
122
If you have selected drive program E:
the cooling output is reduced when cooling
R
when heating, the electrical heater booster is
R
deactivated and heat output is reduced as a
result
the rear window defroster running time is
R
reduced
If you have selected drive program C, S or S+,
the current climate settings are maintained.
ECO start/stop function
During automatic engine switch-off, the climate
control system only operates at a reduced capa-
city. If you require the full climate control output,
you can switch off the ECO start/stop function
by pressing the ECO button (
Operating the climate control sys-
tems
Activating/deactivating climate con-
trol
General notes
When the climate control is switched off, the air
supply and air circulation are also switched off.
The windows could fog up. Therefore, switch off
climate control only briefly
Switch on climate control primarily using the
à rocker switch (
Activating/deactivating
Turn the SmartKey to position 2 in the ignition
X
lock ( page 131).
Y
To switch on: set the airflow to level 1 or
X
higher using the H rocker switch.
To switch off: set the airflow to level 0 using
X
the H rocker switch.
page 136).
Y
page 123).
Y