See also:

Setting the side air vents
► To open/close: turn thumbwheel 3 to the left or right. Side window defroster vent 1 is never completely shut, even if side air vent 2 is shut. ...

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 ...

Please bear the following in mind
At the onset of winter, have your vehicle winterproofed at a qualified specialist workshop, e.g. at an authorized Mercedes- Benz Center. Observe the notes in the "Changing a wheel" ...