Driving systems

Problem Possible causes/consequences and Solutions Solutions
distance warning lamp lights up while the vehicle is in motion. A

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

 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.
Be prepared to brake immediately.
or take evasive action. 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:

    Immobilizer
    The immobilizer prevents your vehicle from being started without the correct SmartKey. When leaving the vehicle, always take the SmartKey with you and lock the vehicle. The engine can be starte ...

    Before changing a fuse
      Park the vehicle and apply the parking brake.   Switch off all electrical consumers.   Remove the SmartKey from the ignition lock. The fuses are located in various fuse boxes: ...

    Calibrating the compass
    Make sure that there is sufficient space for you to drive in a circle without impeding the remaining traffic. In order to calibrate the compass correctly, observe the following points: ca ...