See also:

Call volume
Call volume can be only be adjusted during a call. Use the buttons in the steering wheel keypad or the infotainment system’s VOL control. ...

Oil volume
...

Geartronic–manual shifting
Geartronic allows you to manually shift among your vehicle's six forward speeds. Geartronic can be selected at any time. To access the manual shifting position from Drive (D), move the gear ...