BMW 5 Series: Close the windows and glass 
sunroof - Saving fuel - Driving tips - BMW 5 Series Owners ManualsBMW 5 Series: Close the windows and glass sunroof

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

    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. ...

    Check the tire inflation pressure regularly
    Check and, if necessary, correct the tire inflation pressure at least twice a month and before starting on a long trip. Low tire inflation pressure increases rolling resistance and thus raises ...

    See also:

    Flat towing
    Towing your vehicle with all four wheels on the ground is sometimes called flat towing. This method is sometimes used when towing a vehicle behind a recreational vehicle, such as a motor home. CA ...

    Center console box (front)
    If you remove the divider plate from the dual cup holders, you can use the center console box as a storage space. To use as storage space: Pull out the divider plate of the dual cup holder. T ...

    Low-beam headlamps
    •► To switch on the low-beam headlamps: turn the SmartKey in the ignition lock to position 2 or start the engine. •► Turn the light switch to . The indicator lamp in the instrume ...