See also:

General notes
WARNING All categories of messages contain important information which should be taken note of and, where a malfunction is indicated, addressed as soon as possible at an authorized Mercedes- ...

Rejects or ends 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. ...

Switching on/off
The three blue indicator lamps in the buttons indicate the ventilation level you have selected. If the battery voltage is too low, the seat ventilation may switch off. - Make sure that ...