See also:

The concept
This system reduces undesirable vehicle motion when using a dynamic driving style or traveling on uneven road surfaces. The system enhances driving dynamics and comfort as required for the road ...

Switching on/off manually
Press the button. On: the LED lights up. Off: the LED goes out. ...

Remove attached parts following use
Remove unneeded auxiliary mirrors, roof or rear luggage racks after use. Attached parts on the vehicle impair the aerodynamics and increase the fuel consumption. ...