Hmmm... thanks. Let's hope it isn't the cam problem. You're right, having someone tear down and put one of these engines back together is ridiculous. If that happens we'll have to look for another used car., and this one will be scrapped. I'd put a replacement engine in myself but my health won't cooperate. Can't believe MB sold these cars with such a terminal problem. My car only has 160K miles - and yes the CEL is on - IMO engines should go at least 200K without issues in this day and age. I should have gone with my gut and stayed with diesels which we have driven for 25 years.

It's at the shop now but they're busy til Tuesday.
Thanks for responding.
Larry