User Manual - Page 152

For 4 SERIES GRAN COUPE.

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Press button repeatedly to select an
operating mode:
LED off: outside air flows in continuously.
LED on, recirculated-air mode: the supply
of outside air into the vehicle is perma‐
nently blocked.
Recirculated air mode switches off automati‐
cally at low external temperatures after a cer‐
tain amount of time in order to avoid window
fogging.
If the windows fog over, switch off recircu‐
lated-air mode and increase the air flow, if
needed.
Sufficient ventilation
When remaining in the vehicle for an ex‐
tended period of time, ensure sufficient exter‐
nal ventilation. Do not continuously use recir‐
culated-air mode; otherwise the air quality in
the interior continuously deteriorates and win‐
dow condensation increases.◀
Switching the system on/off
Switch off
Press the left button for the minimum
speed.
Switching on
Press any button except
Rear window defroster.
Seat heating.
Microfilter
In external and recirculated air mode the mi‐
crofilter filters dust and pollen from the air.
This filter should be replaced during scheduled
maintenance, refer to page 207, of your vehi‐
cle.
Automatic climate control with enhanced features
1 Seat heating, left  54 2 Temperature, left
Seite 148
Controls Climate control
148
Online Edition for Part no. 01 40 2 960 707 - II/15
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