s4mb0
Active Member
I've got a 2004 E55 w211 and just had the supercharger and auxiliary belt changed at a mb specialist, but since I've got it back it seems to idle a little higher and it also sticks a little when driving which is more of concern. So my question is could it be a coincidence or could doing these jobs alter the revs slightly ? if to say the belt was to tight or something? I'm not sure about doing the belt hence why I didn't try to change it myself