I Need Turbo Help 83 300d/80 300td - PeachParts Mercedes-Benz Forum

bmitchell510 · #1 09-15-2003, 02:03 PM

Thanks for all the great post I love this bulletin board....

Here's a quick backgraound on my ride. It's an 80 300td (190k) with an 83 300d (120k motor. I have decent records on both cars. This wagon still has the non turbo gears so it hauls. I have owned 14 cars in my 26 years and this is by far the best one....so here's the problem....

While driving through SF this weekend I bottomed out pretty hard while mobbing over a hill. No initial problems and a quick visual inspection didn't reveal any significant impact points. I parked went about my bussiness, car started fine drove back through city with no problems, got on the freeway and about five minutes in I noticed a new wail coming from the turbo. It always had a cool sounding whine (although a little louder than my girlfriend's 83 300d sedan). This new sound came with a slight but noticeable decrease in power. (I should mention that the previous owner replaced the turbo with a new part from a reputeable dealer about 2 years ago, and I know that one of my air cleaner brackets is busted.) It still starts on the first try but now needs a couple of revs to maintain idle but idles smooth as always. There seems to be a tad of smoke coming from somewhere in the engine bay (i Just glanced under the hood). My gut tells me that the bearings in the turbo are calling it quits but these symptoms could also be consistent with a leak somewhere in the intake system??? any replies are appreciated...