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:

    Tilt alarm sensor
    The tilt of the vehicle is monitored. The alarm system responds in situations such as attempts to steal a wheel or when the car is towed. ...

    1975: the first generation - premiere as a two-door sedan with high-output four-cylinder engines
    The presentation of the first BMW 3-Series in July 1975 saw BMW write a new chapter into the automotive history books. The two-door sedan wasted no time in leaving its own distinctive stamp on the ...

    Vehicle equipment
    All standard, country-specific and optional equipment that is offered in the model series is described in this chapter. Therefore, equipment is also described that is not available in a vehicle, ...