See also:

Condensation under the parked vehicle
When using the automatic climate control, condensation water develops that exits underneath the vehicle. Therefore, traces of condensed water under the vehicle are normal. ...

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: ...

Opening the main menu
Press the button. The main menu is displayed. All iDrive functions can be called up via the main menu. ...