BMW 5 Series: Remove attached parts 
following use - Saving fuel - Driving tips - BMW 5 Series Owners ManualsBMW 5 Series: Remove attached parts following use

Remove auxiliary mirrors, roof or rear luggage racks which are no longer required following use.

Attached parts on the vehicle impair the aerodynamics and increase the fuel consumption.

    Remove unnecessary cargo
    Additional weight increases fuel consumption. ...

    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:

    Setting the side air vents
    •► To open/close: turn thumbwheel 3 up or down. Side window defroster vent 1 is never completely shut, even if side air vent 2 is shut. ...

    Operating the system
    1 - Short press: switch the system ON. Press and hold: switch the system OFF. 2 - Infotainment system mode buttons (RADIO, MEDIA, or TEL). Press a button to access the desired mode and press the ...

    Changing wheels and tires
     Tire rotation NISSAN recommends rotating the tires every 7,500 miles (12,000 km). See Flat tire in the In case of emergency section of this manual for tire replacing procedures. As soon a ...