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At outside temperatures above 79°F
(26°C) the system will not automatically
switch back to outside air. A quantity of
outside air is added after approximately
30 minutes.
Charcoal filter
An activated charcoal filter markedly
reduces bad odors and removes pollutants
from air entering the passenger compart-
ment. The charcoal filter can be activated
or deactivated.
The system switches automatically to the
air recirculation mode, if the
carbon monoxide (CO)
or
nitrogen oxide (NO
)
X
concentration of the outside air increases
beyond a predetermined level.
Automatic climate control (CLK 500/CLK 55 AMG)
i
The automatic air recirculation mode
OFF
does not function if the AC
tor lamp on button ° illuminated)
or A/C (indicator lamp on button 2
not lit) mode is selected or if the out-
side temperature has fallen
below 41°F (5°C).
Activating
Press button e ( page 191).
The indicator lamp on the button
comes on.
i
If you keep button e pressed, the
side windows will close.
i
The activated charcoal filter should be
switched off when windows fog up on
the inside, or if the passenger compart-
ment needs to be quickly heated or
cooled down.
Controls in detail
Warning!
(indica-
Never operate the side windows if there is
the possibility of anyone being harmed by
the closing procedure.
In the event that the closing procedure
causes potential danger, the closing of the
side windows can be immediately halted by
releasing the e button or by pressing or
pulling the respective window switch.
Deactivating
Press button e ( page 191).
The indicator lamp on the button goes
out.
i
If you keep button e pressed, the
side windows will return to their previ-
ous position.
G
197
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