See also:

USB audio interface/mobile phone audio interface
At a glance It is possible to connect external audio devices. They can be operated via iDrive. The sound is output on the vehicle loudspeakers. Connectors for external devices ▷ Connection ...

Tone
Only treble and bass can be set in the rear for headphones. The settings are made separately for the left and right headphones. Operation is the same as for the front tone. ...

Gear shift indicator
The concept The system recommends the most fuel efficient gear in the current driving situation. Displays Indicators to shift up or down are displayed in the instrument cluster. ...