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:

    Steering Wheel Adjustments
    Make any steering wheel adjustments before you start driving. Adjusting the steering wheel position while driving may cause you to lose control of the vehicle and be seriously injured in ...

    Compact Spare Tire
    Use the compact spare tire as a temporary replacement only. Get your regular tire repaired or replaced, and put it back on your vehicle as soon as you can. Check the air pressure of the com ...

    Clearing the phone book
    In phone mode, all entries in the infotainment system's phone book can be cleared in Phone menu Phone book Clear phone book. NOTE Clearing the entries in the infotainment system's pho ...