See also:

Genuine Mercedes-Benz parts
All Mercedes-Benz Centers maintain a supply of genuine Mercedes-Benz parts for necessary service and repair work. In addition, strategically located parts delivery centers provide for quick an ...

Rejects or ends a call
Press the button on the steering wheel. If you are not in the Telephone menu, you can still reject or end a call. ...

High outside temperatures
If DEF heats up to over 122 °F (50 °C) for extended periods, e.g. as a result of direct sunlight on the DEF reservoir, DEF can decompose. Ammonia vapors develop as a result. WARNING When o ...