See also:

Functional readiness of the airbagsystem
When the ignition is switch on, the warning lamp in the instrument cluster lights up briefly and thereby indicates the operational readiness of the entire airbag system and the belt tensioner. ...

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. ...

Illuminated vanity mirror* in the rear
Folding down Press the button. The vanity mirror folds down. The angle can be adjusted by hand. Folding up Press the mirror up. ...