Mercedes-Benz ML320 Cdi Operator's Manual page 230

Activating
Press button : ( page 222).
The indicator lamp on the button
comes on.
i
The air recirculation mode is activated auto-
matically at high outside temperatures.
The indicator lamp on button : is not lit when
the air recirculation mode is automatically
switched on.
A quantity of outside air is added after approxi-
mately 30 minutes.
If you have turned off the air conditioning
( page 230) or the outside temperature is
below 41°F (5°C), the air recirculation mode will
not switch on automatically.
i
To cool the interior as fast as possible, the
automatic climate control automatically switch-
es to air recirculation. The indicator lamp on
button : is not lit when the system switches
to air recirculation automatically.
Deactivating
Press button : ( page 222).
The indicator lamp on the button
comes on.
i
The air recirculation mode is deactivated
automatically
after 5 minutes if the outside temperature is
below approximately 41°F (5°C)
after 5 minutes if the air conditioning and
air-drying is turned off
after 30 minutes if the outside temperature
is above approximately 41°F (5°C)
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.
Controls in detail
3-zone automatic climate control*
Air recirculation mode with conve-
nience closing and opening feature
Warning!
Never operate the side windows and
tilt/sliding sunroof* if there is the possibility
of anyone being harmed by the opening or
closing procedure.
In case the procedure causes potential
danger:
Vehicles with or without tilt/sliding sun-
roof*: The closing of the windows can be im-
mediately halted by pressing or pulling the
respective window switch. The closing of the
tilt/sliding sunroof* can be immediately
halted by moving the switch for the tilt/slid-
ing sunroof* in any direction.
The closing of the side windows and the
tilt/sliding sunroof* can be reversed by
again pressing and holding the : button.
G
229