See also:

Engaging the transmission position
Transmission position P can only be disengaged if the engine is running and the brake pedal is pressed. With the vehicle stationary, press on the brake pedal before shifting out of P or ...

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

System limits
Check the traffic situation as well PDC cannot serve as a substitute for the driver's personal judgment of the traffic situation. Check the traffic situation around the vehicle with your own e ...