Mercedes-Benz SL 2008 Owner's Manual page 155

Controls
Air conditioning
Switching the rear window heating
on/off
G Risk of accident
Clear all windows of ice or snow before set-
ting off. Impaired visibility could otherwise
endanger you and others.
i
At very low temperatures, the rear win-
dow heating is only switched on once the
vehicle interior has warmed up.
i
The rear window heating has a high cur-
rent draw. You should therefore switch it
off as soon as the window is clear, as it only
switches off automatically after approxi-
mately 30 minutes.
i
If the battery voltage is too low, the rear
window heating may switch off.
Make sure that the key is in position 2 in
X
the ignition lock.
Press the ¯ button.
X
The indicator lamp in the ¯
up or goes out.
152
Activating/deactivating air-recircula-
tion mode
You can deactivate the flow of fresh air if
unpleasant odours are entering the vehicle
from outside. The air already inside the vehi-
cle will then be recirculated.
G Risk of accident
Only switch over to air-recirculation mode
briefly at low outside temperatures. Other-
wise, the windows could mist up, thus
impairing visibility and endangering your-
self and others. This may prevent you from
observing the traffic conditions, thereby
causing an accident.
Make sure that the key is in position 2 in
X
the ignition lock.
To activate: press the
X
The indicator lamp in the
comes on.
i
Air-recirculation mode is activated auto-
matically at high outside temperatures.
button lights
When air-recirculation mode is activated
automatically, the indicator lamp in
the , button is not lit.
Outside air is added after about
30 minutes.
To deactivate: press the
X
The indicator lamp in the
out.
i
Air-recirculation mode switches off auto-
matically:
after approximately five minutes at out-
R
side temperatures below approximately
5 †
after approximately five minutes if the air
R
dehumidification is deactivated
after approximately 30 minutes at out-
R
side temperatures above approximately
5 †
Air-recirculation mode with the conve-
nience opening/closing feature
, button.
, button
G Risk of injury
Make sure that nobody can become trap-
ped between the side window and the door
frame as the side windows are opened and
closed. Do not place objects or lean against
the side window when it is being opened or
closed. You or the objects could be drawn
in or become trapped between the side
window and the door frame as the window
, button.
, button goes