Before the junkyard consideration .... how is the rest of the car?
Since MBZ diesels are pretty tough, especially the bottom-ends of the engines .... my guess is the head is the problem (or at least was the beginning of the problem).
So if the head were pulled and that is all you needed .... how much. Maybe a used one or a used one that got a valve job before going back on.
Since the valves had never been adjusted in XX,XXX miles .... did the tech even attempt to? Possibly this is the first place. Maybe not and the head is toast. But it it were my car, I would definately try a valve adjust first and see if it made any difference.
What do you think?
'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)