See also:

The concept
▷ Most functions that are displayed on the Control Display can be operated by spoken commands via the voice activation system. The system prompts you to make your entries. ▷ Function ...

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. ...

After the ignition is switched off
The roof can still be operated for approx. 1 minute, as long as no door has been opened. ...