Mercedes-Benz C-Class Operator's Manual page 134

Operating the climate control systems
132
Notes on using automatic climate
control
Optimum use of the automatic climate
control
The following contains notes and recommenda-
tions on optimum use of the dual-zone or 3-zone
automatic climate control.
Activate climate control using the Ã
R
rocker switch. The indicator lamp above the
à rocker switch lights up. The "Cooling
with air dehumidification" function is not acti-
vated automatically in automatic mode. If
necessary, activate this function
( page 133).
Y
Set the temperature to 72 ‡ (22 †).
R
Only use the "Windshield defrosting" function
R
briefly until the windshield is clear again.
Only use air-recirculation mode briefly, e.g. if
R
there are unpleasant outside odors or 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 3-zone automatic climate con-
R
trol or PLUG-IN HYBRID: use the "residual
heat" function if you want to heat or ventilate
the vehicle interior when the ignition is
switched off. The residual heat function can
only be activated or deactivated with the igni-
tion switched off. The residual heat function is
switched off when the ignition is switched on.
DYNAMIC SELECT switch (except
Mercedes-AMG vehicles)
You can choose between various drive programs
with the DYNAMIC SELECT switch
( page 154).
Y
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 (
Y
Switching on/off
Turn the SmartKey to position 2 in the ignition
X
lock ( page 146).
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.
i
3-zone automatic climate control: when cli-
mate control is switched off, "OFF" appears in
the rear-compartment display.
page 151).
Y
page 133).