See also:

Volume of spoken instructions
Turn the volume button while giving an instruction until the desired volume is set. The setting is stored for the remote control currently in use. ...

Sound output
Switching on/off When the ignition is switched off: press ON/OFF button on the radio. Muting When the ignition is switched on or the engine is running: press the ON/OFF button on the radio. ...

Text messages
Text messages at the upper edge of the Control Display in combination with a symbol in the instrument cluster explain a Check Control message and the meaning of the indicator and warning lamps ...