See also:

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

Activating HDC
Press the button; the LED above the button lights up. ...

Opening/closing the glass sunroof and sliding visor together
Briefly press the switch twice in succession in the desired direction past the resistance point. The glass sunroof and sliding visor move together. Pressing the switch again stops the motio ...