After the ignition is switched off

The roof can still be operated for approx. 1 minute, as long as no door has been opened.

    See also:

    Malfunction
    In the event of a failure or malfunction of the parking brake, secure the vehicle against rolling using a wheel chock, for example, when leaving it. ...

    Fuel gauge
    The vehicle inclination may cause the display to vary. Notes on refueling, refer to page 234. ...

    USB audio interface/audio interface for mobile phone
    OverviewIt is possible to connect external audio devices. They can be operated via iDrive. Sound is output over the vehicle speakers. Options for connecting external devices > Connection via US ...