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:
Office
...
Opening the main menu
Press the button.
The main menu is displayed.
All iDrive functions can be called up via the main
menu. ...
Refueling
Always switch off the engine before refueling;
otherwise, fuel cannot be added to the tank and a message will be displayed.
Take all precautionary measures and observe
all applicable regulation ...