The concept

The vehicle alarm system responds to:

▷ Opening of a door, the hood or the tailgate.
▷ Movements in the vehicle: interior motion sensor
▷ Changes in the vehicle tilt, e.g., during attempts to steal a wheel or tow the car.
▷ Interruptions in battery voltage.

The alarm system briefly indicates tampering:
▷ By sounding an acoustic alarm.
▷ By switching on the hazard warning system.
▷ By flashing the high beams.

    See also:

    Signal tones
    When approaching an object, an intermittent tone is sounded that indicates the position of the object. For example, if an object is detected to the left rear of the vehicle, a signal tone sounds ...

    Opening/closing the glass sunroof
    When the sliding visor is open, proceed as described under Sliding visor. ...

    Have maintenance carried out
    Have vehicles maintained regularly to achieve optimal vehicle economy and operating life. Have the maintenance carried out by your service center. Please also note the BMW Maintenance System, ...