The concept

The central locking system becomes active when the driver's door is closed.

The system simultaneously engages and releases the locks on the following:

▷ Doors.
▷ Trunk lid.
▷ Fuel filler flap.

    See also:

    Radio
    When the same radio source is selected in the front and rear (e.g., FM/AM), the same radio station is played. Operation is the same as for the front radio. ...

    Safety belts
    Seats with safety belt The vehicle has five seats, each of which is equipped with a safety belt. Notes Always make sure that safety belts are being worn by all occupants before driving away. A ...

    Aerodynamic optimisation of underside panelling
    As the excellent drag coefficient (cd = 0.26) would suggest, the aerodynamics of the new BMW 3-Series have been intensively honed in a state-of-the-art wind tunnel. The optimised aerodynamics also ...