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#1
11-15-2006, 08:52 AM
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Please help me pinpoint oil leak..
Hi all,
Please see the attached photo...angle is from the passenger side looking forward at the back of the bell housing/ rear main. On my 2000 E-320(WITH 49K),I discovered this.It is oil, not trans fluid. It was about to drip..so I cleaned it off. The photo was taken after I then drove 2 days/100 miles. I appears to be coming out of the "vent" and not the actual seal in front of that. Any Ideas??? What would/could cause a relatively new, low mile car to start this? How serious is it? How big of job ($$$) to fix? Help  Thanks!!!! 
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#2
11-15-2006, 10:52 AM
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look up inside the bellhousing at the front of the trans and at the rear engine seal. one of those is likely your culprit. Judging by the color and the car's age/mileage I'd say thats trans fluid but it does only seem to be toward the engine side so it may be oil. hard to tell from that picture.
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 1980 500SE/AMG Euro 1981 500SEL Euro 1982 380SEL 1983 300TD 1983 500SEC/AMG Euro 1984 500SEC 1984 300TD Euro 1986 190E 2.3-16 1986 190E 2.3 1987 300D 1997 C36 AMG 2003 C320T 4matic past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350
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#3
11-15-2006, 12:18 PM
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i am working on the same v6 engine in the c class.same year same problem.the plate that holds the rear main oil seal was cracked due to the bolt that holds the excentric weight on the balance shaft coming loose but i am replacing the seal as well[needed a new plate but surprise.......it was in stock].
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David S Poole European Performance Dallas, TX 4696880422 "Fortune favors the prepared mind" 1987 Mercedes Benz 420SEL 1988 Mercedes Benz 300TE (With new evaporator) 2000 Mercedes Benz C280 http://www.w108.org/gallery/albums/A...1159.thumb.jpg
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#4
11-16-2006, 01:25 PM
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That is likely the rear main seal. Pretty classic. But i'm not experienced on the MB so much.
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1986 300e (runs like a top.. interior needs parts) 2006 GTO 2003 Mini S
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#5
11-18-2006, 03:42 PM
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i just was able to get a good look inside...found nothing that indidcates where its coming from...everything inside the "vent" looks dry
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#6
11-18-2006, 03:48 PM
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Would agree, probably main seal or the plate the main seal presses in to. Does look a bit more like ATF to me too though. I don't "think" your torque converter has a drain plug, but if you want to double-check, possibly that plug might be dribbling a little and slinging the fluid around inside the bell housing, that would explain why you can't find where it's coming from. Bottom line is that if the car doesn't "leave it's mark" on the floor or driveway overnight, probably not worth pursuing IMHO.
Gilly
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Click here to see a photo album of my '62 Sprite Project Moneypit (Now Sold)
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