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:

    After refilling diesel exhaust fluid
    Incorrect fluid Incorrect fluids After refilling with the incorrect fluid, e.g., antifreeze for windshield wiper fluid, do not start the engine because this could result in a fire hazard. ...

    Radar sensor
    Position Radar sensor Dirty or covered sensor A dirty or covered sensor may hinder the detection of vehicles. ▷ If necessary, clean the radar sensor. Remove layers of snow and ice care ...

    General information
    Antifreeze for washer fluid Antifreeze is flammable. Therefore, keep it away from sources of ignition. Only keep it in the closed original container and inaccessible to children. Follow the i ...