Left-hand LED on, AUC mode: a sensor
detects pollutants in the outside air. If nec-
essary, the system blocks the supply of out-
side air and recirculates the inside air. As
soon as the concentration of pollutants in
the outside air has decreased sufficiently,
the system automatically switches back to
outside air supply.

Right-hand LED on, recirculated-air mode:
the supply of outside air is permanently
shut off. The system then recirculates the
air currently within the vehicle.

If condensation starts to form on the
inside window surfaces during operation

in the recirculated-air mode, you should switch
it off while also increasing the air flow rate as
required.
The recirculated-air mode should not be used
over an extended period of time, otherwise the
air quality inside the car will deteriorate contin-
uously.

Defrosting windows and removing
condensation

Quickly removes ice and conden-
sation from the windshield and

front side windows.
Switch on the cooling function as well.

Rear window defroster

The defroster switches off auto-
matically after a certain time or

when the hardtop is opened.

Ventilation

1 Lever for changing the direction of the

air flow.

2 Knurled wheels for opening and closing the

air vents.

3 Knurled wheel for adjusting the amount of

cool air from the vents to the upper body
area. In this way you can optimize the air
temperature for the upper body area.

Ventilation for cooling

Adjust the vent outlets to direct the flow of cool
air in your direction, for instance if it has become
too hot in the car.

Draft-free ventilation

Set the vent outlets so that the air flows past
you and not straight at you.

Microfilter/activated-charcoal filter

The microfilter traps dust and pollen in the
incoming air. The activated-charcoal filter pro-
vides additional protection by filtering gaseous
pollutants from the outside air. Your BMW cen-
ter replaces this combined filter during routine
maintenance.

This manual is related to the following products:

Z4 sDrive30i 2009