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 ...

The concept
Indicator/warning lamps The indicator and warning lamps can light up in a variety of combinations and colors. Several of the lamps are checked for proper functioning when the engine is started ...

BMW Maintenance System
The maintenance system directs you to required maintenance measures and thereby supports you in maintaining road safety and the operational reliability of the vehicle. ...