BMW Z4 sDrive35is 2011 - Manual (Page 100)

▷ When the engine is warm.
▷ With sufficient battery voltage.
▷ At an external temperature under 77 ℉/
25 ℃.
The middle LED is lit when the function is on.
Automatic recirculated air control/
recirculated air mode
Switch on the desired operating
mode by pressing this button re‐
peatedly:
▷ LED off: outside air flows in
continuously.
▷ Left LED on, automatic recirculated air con‐
trol: a sensor detects pollutants in the out‐
side air. If necessary, the system blocks the
supply of outside air and recirculates the in‐
side air. As soon as the concentration of pol‐
lutants in the outside air has decreased suf‐
ficiently, the system automatically switches
back to outside air supply.
▷ Right LED on, recirculated air mode: the
supply of outside air into the vehicle is per‐
manently blocked. The system then recir‐
culates the air currently within the vehicle.
Only use recirculated air mode for a limited
period
If condensation starts to form on the inside win‐
dow surfaces during operation in the recircu‐
lated air mode, you should switch it off while also
increasing the air flow rate as required. The re‐
circulated air mode should not be used for an
extended period of time, as the air quality inside
the vehicle deteriorates steadily.◀
Defrosting windows and removing
condensation
Quickly removes ice and conden‐
sation from the windshield and
front side windows.
For this purpose, also switch on the cooling
function.
Rear window defroster
The defroster switches off auto‐
matically after a certain time or
when the hardtop is opened.
Ventilation
1 Use the lever to change the direction of the
air flow
2 Use the thumbwheels to smoothly open and
close the air vents
3 Thumbwheel for adjusting the amount of
cool air from the vents to the upper body
area. This can be used to adjust the air tem‐
perature for the upper body area.
Ventilation for cooling
Adjust the vents to direct the flow of cool air in
your direction, for instance if the interior has be‐
come too warm.
Draft-free ventilation
Adjust the vents to let the air flow past you.
Microfilter/activated-charcoal filter
The microfilter traps dust and pollen in the in‐
coming air. The activated-charcoal filter pro‐
vides additional protection by filtering gaseous
pollutants from the outside air. Your service cen‐
ter replaces this combined filter during routine
maintenance.
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Climate control