Mercedes-Benz 2009 SL-Class Operator's Manual page 169

Deactivating the climate control sys-
tem
G Warning!
When the climate control is switched off,
the outside air supply and circulation are
also switched off. Only choose this setting
for a short time when the retractable hard-
top is closed. Otherwise the windows could
fog up, impairing visibility and endangering
you and others.
X
Deactivating: Press button ´.
The indicator lamp in the button comes on.
X
Reactivating: Press button
The indicator lamp in the button goes out.
The previous settings are once again in
effect.
or
X
Turn temperature controls
7
( Y page 164) clockwise or counterclock-
wise.
The indicator lamp in button
or
X
Press button U.
The indicator lamp in button
on. The air volume and air distribution are
adjusted automatically.
or
X
Press button y.
The indicator lamp in button
Air conditioning
The air conditioning is operational while the
engine is running and cools the interior air to
the temperature set by the operator. In addi-
again.
tion, the air conditioning dehumidifies the
´
interior air and helps prevent window fogging.
G Warning!
If you switch off the cooling function, the
vehicle will not be cooled when weather
conditions are warm. The windows can fog
or
c
up more quickly. Window fogging may
impair visibility and endanger you and oth-
ers.
goes out.
´
i Condensation may drip out from under-
neath the vehicle. This is normal and not an
indication of a malfunction.
Deactivating
comes
U
It is possible to deactivate the cooling func-
tion of the climate control system. The inte-
rior air will then no longer be cooled or
dehumidified.
X
Press button 9.
The indicator lamp in the button goes out.
goes out.
´
The cooling function switches off after a
short delay.
Activating
Moist air can fog up the windows. You can
dehumidify the interior air with the air condi-
tioning.
X
Press button
The indicator lamp in the button comes on.
The air conditioning uses the refrigerant
R134A. This refrigerant is free of CFCs which
are harmful to the ozone layer.
Controls in detail
Climate control system
again.
9
167
Z