See also:

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" ...

Displays and controls
  ...

Route guidance active
No change of direction announced 1. Distance to the destination 2. Distance to the next change of direction 3. Current road 4. Symbol for "follow the road's course" ...