See also:

Malfunction
A message is displayed. Adaptive light control is malfunctioning or has failed. Have the system checked as soon as possible. ...

System limits
Basic limits System operation is limited in situations such as the following: On steep hills, in steep depressions or in tight curves. When the camera is dirty or the protective glass i ...

Close the windows and glasssunroof
Driving with the glass sunroof and windows open results in increased air resistance and raises fuel consumption. ...