See also:

Displaying program information
This function is only available for analog FM and digital AM/FM programs (HD Radio). Information relevant to the current station is shown in the display window. Select Info in the radio display ...

Selecting the screen for the remote control
Turn thumbwheel 3 until the desired display is highlighted in the window. ...

Cleaning the exterior lighting
  Clean the plastic lenses of the exterior lights with a wet sponge and a mild cleaning agent, e.g. Mercedes-Benz car shampoo or cleaning cloths. Only use cleaning agents or cleaning ...