See also:

Switch off the engine duringlonger stops
Switch off the engine during longer stops, e.g., at traffic lights, railroad crossings or in traffic congestion. Auto Start/Stop function The Auto Start/Stop function of your vehicle automatically ...

Saving a function
1. Highlight the function via the iDrive. 2. Press the desired button for more than 2 seconds. ...

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