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:

    Making A Second Call While Current Call Is In Progress
    To make a second call while you are currently on a call, press the button and say “Dial” or “Call” followed by the phone number or phonebook entry you wish to call. The first call wil ...

    Using the telephone - Vehicles Without: Navigation System
    This chapter describes the phonefunctions of the audio unit. Note: Refer to your audio guide fordetails of the controls. An active phone must be present. Even if connected to the audio unit, yourph ...

    High beam, Halogen
    1. Remove the headlight housing from the vehicle (see page 306). 2. Remove the cover over the bulbs (see page 308). 3. Remove the bulb by turning it counterclockwise and pulling it straight out. ...