See also:

Route guidance inactive
Route guidance inactive 1 Direction of travel 2 Current road ...

Guide lines in the COMAND display
WARNING Use of rear view camera can be dangerous if you are color-blind or have impaired color vision. Only use rear view camera if you can see and distinguish all colored guidelines shown ...

Windows fogged up on the outside
Switch on the windshield wipers. Activate automatic climate control. You should only select this setting until the windshield is clear again. ...