See also:

Restoring the factory settings
► Press the buttons simultaneously for approximately six seconds until the battery check lamp flashes twice. ...

Rejecting or ending a call
– Press the button on the steering wheel. If you are not in the Tel menu, you can still reject or end a call. ...

Outside temperature display
The outside temperature display is in the multifunction display WARNING The outside temperature indicator is not designed to serve as an ice-warning device and is therefore unsuitable for ...