See also:

Automatic deactivation during forward travel
The system switches off when a certain driving distance or speed is exceeded. Switch the system back on if necessary. ...

CD changer
The BMW CD changer for six CDs is behind the left side panel in the cargo area. Removing the CD magazineTo insert or remove CDs from the CD magazine, you must first remove it from the CD changer: ...

Malfunction
In the event of a failure or malfunction of the parking brake, secure the vehicle against rolling using a wheel chock, for example, when leaving it. ...