See also:

Deactivating HDC
Press the button again and the LED goes out. HDC is automatically deactivated above approx. 37 mph/60 km/h. ...

Switching on automatically
Select transmission position R with the engine running. The images from Top View and PDC are displayed when the system has been switched on using iDrive. ...

Air volume, manual
To be able to manually adjust the air volume, switch off the AUTO program first. Press the left or right side of the button: decrease or increase air volume. The selected air volume is shown ...