See also:

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. ...

Switching on/off
The three blue indicator lamps in the buttons indicate the ventilation level you have selected. If the battery voltage is too low, the seat ventilation may switch off. - Make sure that ...

Cleaning the wheels
WARNING Do not use power washers with circular-jet nozzles (dirt grinders) to clean your vehicle, in particular the tires. You could otherwise damage the tires and cause an accident. ...