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Weird oil leak E320 Coupe 1994
Anyone aware of oil leaking from here?
I think it could explain this thread i posted in benzworld: http://www.benzworld.org/forums/w124-e-ce-d-td-class/1434656-need-help.html or seeing visible smoke from the back when I stretch the legs of the coupe (90+ MPH for longer than 5 miles), which makes sense because when you push the car a lot, oil pressure gets high and could be leaking out of these vacuum ports. that said, when I took the intake housing off, it was really dirty with oil and the MAF was covered in dirty oil as well, and you can see the same dirtyness on the butterfly valve of the throttle actuator. What are the best ways to clean them out? I also have developed a very slight rough idle and took the intake off to look at the ignition coils but spotted the above dirtyness. The idle isn't really really rough like its about to conk out and the car shakes a lot, its just there are visible yet very very subtle inconsistencies in idle RPM sometimes, and you can feel the engine kicking very very subtly like theres a very small misfire. It does not inhibit driving at all but it just doesnt idle as smoothly as it used to. Motor mounts were done just last year and this rough idle doesn't happen all the time. Could the dirty MAF cause the rough idle? How do I fix that oil leak?
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1975 W116 280S - SOLD 1994 W124 E320 Coupe - Gone CURRENT - 1974 450SEL - 1987 560SEL |
#2
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bump....
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1975 W116 280S - SOLD 1994 W124 E320 Coupe - Gone CURRENT - 1974 450SEL - 1987 560SEL |
#3
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My first check would be the TSB Bulletin concerning oil level...they want the oil level on that chassis to NEVER be past the 1/2 way Mark with engine up to temp and a 2 min wait for the check.
There was a capacity change on that version to lessen cap by 1/2 ltr. The skip is most likely the plug connectors under the coils. Any codes??
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A Dalton |
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No codes. What's the TSB bulletin?
Car is serviced by Mercedes Certified specialist, and oil pressure has never been an issue. Car is almost flawless with the way I take care of it,
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1975 W116 280S - SOLD 1994 W124 E320 Coupe - Gone CURRENT - 1974 450SEL - 1987 560SEL |
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<
TSB # 00/134 -18/45 Effective 12/95 Reduced oil capacity/104 engine .
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A Dalton |
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Please message me if you resolve this issue as I have the same exact issues you have mentioned (just that my car is 94 e320 sedan). The smoke has occurred to me a few times after high speed driving, I also have the slight idle issue when car warms up, and I found oil in the same spots with some oil on the spark plug connector for spark plug closest to the firewall (cylinder #6 i believe). The last time I saw the smoke was last summer. For me the smoke occurred on days with hot temperatures outside or it could have coincided with the same oil change that was the culprit. I was going to replace the valve cover gasket and get the kit that comes with 6 little rings for each cylinder.
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