See also:

Resetting the panorama roof with power tilt/sliding panel or the front roller sunblind
Reset the panorama roof with power tilt/sliding panel or the roller sunblinds if the panorama roof with power tilt/sliding panel or the roller sunblinds do not move smoothly. Do not open the p ...

The windshield wipers are inoperative
The windshield wiper drive is malfunctioning. Select another wiper speed on the combination switch. Have the windshield wipers checked at a qualified specialist workshop. ...

Cleaning the paintwork
Scratches, corrosive deposits, areas affected by corrosion and damage caused by inadequate care cannot always be completely repaired. In such cases, visit a qualified specialist workshop, e.g. ...