See also:

Transmission positions
D Drive, automatic position Position for normal vehicle operation. All forward gears are available. Under normal operating conditions, fuel consumption is lowest when you are driving in position ...

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

Example: dialing a phone number
1. Briefly press the button on the steering wheel. 2. ›Dial number‹ The system says: »Please say the number«. 3. For instance, ›123 456 790‹ The system says: »123 456 790. Continue?   ...