See also:

Head airbags
In a lateral impact, the head airbag supports the head. ...

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

Low tire pressure message
  The yellow warning lamp lights up. A Check Control message is displayed. ► There is a flat tire or a major loss in tire inflation pressure. ► The system was not reset after ...