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Controls in detail
4-zone automatic climate control
Air recirculation mode
Switch to air recirculation mode to prevent
unpleasant odors from entering the vehicle
from the outside (e.g. before driving
through a tunnel). This setting cuts off the
intake of outside air and recirculates the
air in the passenger compartment.
Activating
̈ Press button , (୴ page 224) or
(
୴ page 225).
The indicator lamp on the button
comes on.
Deactivating
̈ Press button , (୴ page 224) or
(
୴ page 225).
The indicator lamp on the button goes
out.
Warning! G
Fogged windows impair visibility, endanger-
ing you and others. If the windows begin to
fog on the inside, switching off the air
recirculation mode immediately should clear
interior window fogging. If interior window
fogging persists, make sure the air
conditioning (
୴ page 235) is activated, or
press button P or 0.
i
The air recirculation mode is activated auto-
matically at high outside temperatures and if the
concentration of carbon monoxide (CO) and ni-
trogen oxide in the outside air increases, for ex-
ample in a tunnel.
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.
i
The air recirculation mode is deactivated au-
tomatically:
ț after 5 minutes if the outside temperature is
below approximately 41°F (5°C)
ț after 5 minutes if the air conditioning is
turned off
ț after 30 minutes if the outside temperature
is above approximately 41°F (5°C)