Overview of the buttons on the steering wheel
Back/Home button (press and hold), on-board computer
Touch Control, on-board computer
Control panel for cruise control/limiter or Active Distance Assist DISTRONIC
Control panel for multimedia system:
Voice control system
Displays favourites
VOL: control knob, adjusts the volume or switches the sound off (press)
Makes/accepts a call
Rejects/ends a call
Calls up the home screen
Touch Control multimedia system
Back button