See also:

Active Lane Keeping Assist
Important safety notes Active Lane Keeping Assist monitors the area in front of your vehicle by means of a camera at the top of the windshield. Active Lane Keeping Assist detects lane markings ...

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. ...

Important safety notes
For reasons of safety, Mercedes-Benz recommends that you drive with the lights switched on even during the daytime. In some countries, operation of the headlamps varies due to legal requiremen ...