I have a w207 e class and I was wondering what the scroll nob should do. It works when I push it back to front and side to side but when I twist it should it do something?
It does lots on mine and I suppose should on yours.
If in navigation turning the wheel increases or decreases the map size, in radio mode scrolls through the stations, in media mode scrolls the various media options plus other options in other modes so in short yes it should work.