See also:

Important notes on tire pressure
WARNING Should the tire pressure drop repeatedly: check the tire for foreign bodies. check whether the wheel is losing air or the valve is leaking. make sure that only a valve cap approv ...

Checklist after driving off-road
WARNING If you notice sudden significant vibrations or unusual handling performance or if you suspect that damage has occurred to the vehicle, you should activate the hazard warning lamps, g ...

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. ...