My 1998 E300D TurboDiesel, that I just plugged in another thread, began to blow some oil smoke out the back end while coming down a long mountain road with my foot off the throttle. Once on level ground, and with some throttle, the billowing smoke out the back end was over and has not reappeared in several hundred miles of routine flat and uphill or downhill driving.

Nothing obvious under the hood, but it seems like something a leaking turbo bearing seal might cause. Anyone have a similar experience?

Jim

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Own:
1986 Euro 190E 2.3-16 (291,000 miles),
1998 E300D TurboDiesel, 231,000 miles -purchased with 45,000,
1988 300E 5-speed 252,000 miles,
1983 240D 4-speed, purchased w/136,000, now with 222,000 miles.
2009 ML320CDI Bluetec, 89,000 miles

Owned:
1971 220D (250,000 miles plus, sold to father-in-law),
1975 240D (245,000 miles - died of body rot),
1991 350SD (176,560 miles, weakest Benz I have owned),
1999 C230 Sport (45,400 miles),
1982 240D (321,000 miles, put to sleep)

Possibly valve seals.

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Gone to the dark side

- Jeff

My '99 needed it's turbo replaced at about 40K miles under warranty. I don't have any details other than the scuttlebutt the service writer at the Mercedes-Benz dealer gave me. Something about the intercooler filling with oil. My car had no symptoms that I was aware of. It was out of service two weeks in Baton Rouge, LA. total. MB's out of town car breakdown sent me about $850.00 for my travel re-imbursement.