Driving systems

Problem Possible causes/consequences and Solutions
distance

The red distance warning lamp lights up while the vehicle is in motion. A warning tone also sounds.

 The warning is issued if you approach a stationary vehicle or a Risk of accident

The warning is issued if you approach a stationary vehicle or a vehicle driving ahead of you at too high a speed.
immediately. Be prepared to brake immediately.
the traffic situation. You may have to Pay careful attention to the traffic situation. You may have to brake or take evasive action.
More information about DISTRONIC PLUS and PRE-SAFE® Brake
    See also:

    Problems with the engine
    Problem Possible causes/consequences and Solutions The engine does not start. The starter motor can be heard. • There is a malfunction in the engine electronics. • ...

    Important safety notes
    WARNING The cruise control is a convenience system designed to assist the driver during vehicle operation. The driver is and must always remain responsible for the vehicle's speed and for sa ...

    Problems with the rear window defroster
    The rear window defroster has deactivated itself prematurely or cannot be activated. •► Switch off any consumers that are not required, e.g. reading lamps or interior lighting. When the ...