Date registered: Mar 2019
Vehicle: 2003 ml500, 2004 ml350
Location: boise Id
Mentioned: 1 Post(s)
Quoted: 55 Post(s)
81-300 SD turbo diesel, oil covered engine
I am posting this for an older friend of mine that is not too tech savvy , he does not even text! Since it is not my car, I have not put it in my description, so please no hard time for that.
The car is question is a pristine 1981 300 SD turbo diesel, he took european delivery of the car and has owned it since. It has only 111,000 miles on it. So to the juicy bits.
The car is not his daily driver, in fact it now only gets driven 2 weeks out of the year and is kept at a second home. Last year he came up for a visit and was going to drive several hundred miles to visit family. He got 2 hours away and called me. Was pulled over on the side of the road, 30 miles from the nearest town, Oil covering all the engine, almost none in the pan. Dip stick was in all the way.
He gets a tow finds the mechanic that has the best MB diesel experiance he can. The mechanic steam cleans it, goes over it, checks the filler cap, the filter housing. Refills it with oil, they start it no problem. He decides to turn around and head back no issue. Since then he has only driven it around town, had a second indy Mechanic look it over, no cause found. I looked it over nothing to be seen. I suggested may be the filter housing he agrees with that thought but to this day swears no oil at all in that area.
My second thought is Turbo oil bypass valve, I think it is called. But where would the oil come from? He was driving about 60 on the state highway before that about 45 miles on the interstate at about 75mph.
I am not a diesel guy but any ideas? We would like to hear them. Oh this did happen in August of 2018, can get hot and dry in our neck of the high desert, but it was about 10 AM. He wants to road trip it again this August.
Thanks in advance.