Well guys I have one of these vehicles that has had engine probs....total new engine at 103K(warranty).
I bought the car at 90K and the car appeared to be very clean and taken care of...but none the less at about 98K it started smoking and by 102K I was burning a quart of oil every 180 miles
So now I have a new engine with a MB 48/50 parts and labor warranty
The MB regional MB rep said that some people never had problems with this engine so it could very well be a maintenace issue..but in any case there must have been several modification done in late 1994 early 1995 to alleviate this "problem" as I have seen no newer cars with this problem and there seem to be no repeats of this problem with the people that had new engines installed..I guess MB found the weakness and corrected it
In any case I think MB will offer goodwill on this engine if it has less than 75K and a documented MB dealer service history. I know of two gentleman in Texas who have gotten repairs at least partially paid for by MB out of warranty
But again I have seen these cars with excess of 200K with no problems..

Warren
1992 300SD 113K
Columbus Ohio