BMW 3 SERIES SEDAN Owner's Manual page 139

▷ LED off: outside air flows in continuously.
▷ LED on, recirculated-air mode: the supply of
outside air into the vehicle is permanently
blocked.
If the windows fog over, switch off recirculated-
air mode and increase the air volume, if neces‐
sary.
Continuous recirculated-air mode
The recirculated-air mode should not be
used for an extended period of time, as the air
quality inside the vehicle deteriorates steadily.◀
Switching the system on/off
Switching off
Press the left button for the minimum
speed.
Automatic climate control with enhanced features
1 Seat heating, left 48
2 Temperature, left
3 AUTO program
Online Edition for Part no. 01 40 2 917 801 - II/13
Climate control
Switching on
Press any button except
▷ Rear window defroster.
▷ Seat heating.
Microfilter
In external and recirculated air mode the micro‐
filter filters dust and pollen out of the air.
This filter should be replaced during scheduled
maintenance, refer to page 200, of your vehicle.
4 Display
5 Maximum cooling
6 Temperature, right
Controls
139