Air recirculation
¤ Please first read and note the introductory information and heed the WARNINGS
General information
There are different types of air recirculation:
3 Manual air recirculation.
Automatic air recirculation mode (Climatronic only).
The air recirculation mode helps prevent outside air from entering the vehicle interior.
In very hot outside temperatures, temporarily switch to manual air recirculation in order to cool the
vehicle interior faster.
For safety reasons, air recirculation is switched off if you push the  button or the air distribution
knob is turned to < ⇒ .
Switching manual air recirculation on and off
Switching on: Press the 3 button. The indicator light under the button lights up.
Switching off: Press the 3 button. The indicator light under the button goes out.
Switching the automatic air recirculation mode on and off: Climatronic
x Press the -%.5 button.
x Touch the £ function key.
x Switch automatic recirculation mode on or off by touching the Automatic air recirculation function
key.
If the box in the function key is checked =, the automatic recirculation mode is switched on.
Features of automatic air recirculation mode
In automatic air recirculation mode, fresh air enters the passenger compartment. If the system detects
an increased concentration of pollutants in the outside air, it automatically switches to air recirculation.
As soon as the pollutant level is back in the normal range, air recirculation is switched off.
Unpleasant odors cannot be detected by the system.
To prevent condensation from forming on the windows, air recirculation does not automatically switch
on in certain situations.
WARNING
Stale air causes driver fatigue and reduces driver alertness, which can cause accidents,
collisions and serious personal injury.
x Never use air recirculation mode over an extended period of time, since no fresh air will
enter the passenger compartment.
x When the air conditioner is off and recirculation mode is on, condensation can quickly
form on the windows and greatly reduce visibility.
x Always switch off recirculation mode when it is not needed.
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