See also:

Malfunction
A message is displayed in the instrument cluster. HDC is not available, e.g., due to elevated brake temperatures. ...

Hands-free system
General information Calls that are being made on the hands-free system can be continued on the mobile phone and vice versa. From the mobile phone to the handsfree system Calls that were begun ...

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. ...