There was an article in the KC Star a couple of months ago about a traveling salesman in the area with a Mercedes (C320? can't remember??) that had this same engine in it.....he was working on something over 400,000 miles with no major issues.....changed the oil every 7-8 k.

Coupegirl, did you buy that one new? Was it a stick or automatic? What year was it? How often did you change the oil?