Check Engine light
MBWorld Fanatic!
Joined: Nov 2001
Posts: 4,260
Likes: 6
From: Philadelphia area
2010 ML550, 2010 E350 4M, 1966 Corvette Convt C2
There are lots of items that can cause a CEL. The only way to know what to change is to have the car correctly diagnosed and I do not mean with a handheld scanner or Autozone. The correct way to do this is to have it done with the MB Star system that should pinpoint exactly what the problem is. The others just give general info, no specifics. And, yes you should have it done as some items can lead to very expensive reopairs if not addressed promptly. It could also lead to an on the road breakdown and that will happen when and where you don't want it to.
