Useful Information; Important Safety Notes - Mercedes-Benz 2013 C-Class W204 Sedan Owner's Manual

Overview of climate control systems
146

Useful information

i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variations are pos-
sible. Note that your vehicle may not be
equipped with all of the functions descri-
bed. This is also the case for systems and
functions relevant to safety.
i Read the information on qualified special-
ist workshops: (
Overview of climate control systems

Important safety notes

Observe the settings recommended on the
following pages. The windows could other-
wise mist up.
To prevent the windows from misting up:
switch off climate control only briefly
R
switch on air-recirculation mode only
R
briefly
switch on the cooling with air dehumidifi-
R
cation function
switch on the defrost windscreen function
R
briefly, if required
Climate control regulates the temperature
and the humidity in the vehicle interior and
filters undesirable substances out of the air.
Climate control is only operational when the
engine is running. Optimum operation is only
achieved when the side windows and the roof
are closed.
The residual heat function can only be acti-
vated or deactivated with the ignition
switched off ( Y
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature (
This will speed up the cooling process and
the desired vehicle interior temperature
will be reached more quickly.
Y page 29).
page 157).
Y page 104).
i The integrated filter filters out most par-
ticles of dust and soot and completely fil-
ters out pollen. It also reduces gaseous pol-
lutants and odours. A clogged filter reduces
the amount of air supplied to the vehicle
interior. For this reason, you should always
observe the interval for replacing the filter,
which is specified in the Service Booklet.
As it depends on environmental conditions,
e.g. heavy air pollution, the interval may be
shorter than stated in the Service Booklet.
i
It is possible that the residual heat func-
tion may be activated automatically an hour
after the key has been removed in order to
dry the air-conditioning system. The vehicle
is then ventilated for 30 minutes.