See also:

Adjusting volume
Turn knob 1next to the CD/DVD player until the desired volume is obtained. You can also adjust the volume with buttons on the steering wheel. ...

Voice operation
Vehicles equipped with the voice activation system: operation. Vehicles not equipped with the voice activation system: depending on the equipment, the mobile phone can be voice operated as desc ...

Requirements
Via the Control Display, set a language that is also supported by the voice activation system so that the spoken commands can be identified. Set the language. ...