See also:

Showing the distance display
This function is only available with DISTRONIC PLUS. •► Press the button on the steering wheel to select the DriveAssist menu. •► Press the button to select Distance Display. ...

Important safety notes
WARNING Do not turn off the engine before the vehicle has come to a complete stop. With the engine not running, there is no power assistance for the brake and steering systems. In this case, ...

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 ...