See also:

Scanning audio files on an external device
This function plays the first ten seconds of each audio file. This function can be activated/ deactivated under: Bluetooth menu Scan. ...

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. ...

Audio volume and automatic volume control
The infotainment system compensates for disrupting noises in the passenger compartment by increasing the volume according to the speed of the vehicle. The level of sound compensation can be se ...