See also:

Note
Children in the vehicle Do not leave children unattended in the vehicle; otherwise, they could endanger themselves and other persons, e.g., by opening the doors.◀ ...

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

Buckling the belt
Make sure you hear the latch plate engage in the belt buckle. Tensioning the safety belt automatically After the belt is buckled and the door is closed, the belt is tightened once automatica ...