See also:

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 ...

PRE-SAFE® Brake
PRE-SAFE® Brake is only available in vehicles with DISTRONIC PLUS. Observe the "Important safety notes" section PRE-SAFE® Brake can help you to minimize the risk of a frontal collisi ...

Adjusting the brightness, contrast or color
Select Source in the rear-compartment screen and press the button on the remote control to confirm. Select Display Aux or Disk Drive Aux and press the button to confirm. Select Brightness ...