Close the windows and glass sunroof

Driving with the glass sunroof and windows open results in increased air resistance and raises fuel consumption.

    See also:

    Electronic brake-force distribution
    The system controls the brake pressure in the rear wheels to ensure stable braking behavior. ...

    The concept
    Two radar sensors below the rear bumper monitor the area behind and next to the vehicle at speeds above approx. 30 mph/50 km/h. The system indicates whether there are vehicles in the blind sp ...

    Preparation
    1. Check whether the battery of the other vehicle has a voltage of 12 volts and approximately the same capacitance in Ah. This information can be found on the battery. 2. Switch off the engine ...