Please see attached photo.
Where does this oil come from (lots of oil between manifold and engine)?
This is for 1985 300D Turbo Diesel

Thank you,

Steve

Attached Thumbnails

 

Ah, you have a California version just like mine. When I had an oil leak like that it was streaming back from the turbo-to-intake manifold junction – the o-ring seals in the interface were old and leaking. Otherwise, the oil could be coming from the gasket between the valve cover and the head – any idea when that gasket was last changed?

__________________

"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970

Hi Jeremey
Thank you for the reply.
Over 2 years ago, I took the car to an independent Mercedes Shop for valve adjustment.
May be the valve gasket was not properly seated?

I would clean/degrease that area really good. Then you can keep an eye on it as the oil is probably seeping very slowly. Check that turbo oil supply pipe really good.

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'83 300D 198,000mi Howard
'03 Saturn Vue CVT 75,000mi(wifeys)

I have similar issues, another member notified me that the steel rings that border the air passages in the original mani gaskets fail due to expanding and shrinking.

I also have some oil in my manifold from my failing vacuum pump. If you are experiancing any rough shifting, door lock issues, shutoff issues you should consider learning about your vacuum pump.

have a new gasket that I will install as well as a new diaphram, also route your crank case breather with a hose to the ground, it will keep your intake manifold cleaner at the sacrafice of a drip of oil.

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'79 240D
'79 300SD

those that are missed:
'80 300TD bandit
'76 300D cleta jill

When I got my Car the whole engine was Oil soaked. After it was cleaned off I found that it was the Valve Cover Gasket. After that was change I found out that fixed 95% of my oil leakage problem.

If your Indy did the Valve Adjustment and did not charge you for a new Valve Cover Gasket there is a good chance it was not changed during the Valve Adjustment.

The Valve Cover Gasket is at least one part that will not cost vary much to buy.

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84 300D, 82 Volvo 244Gl Diesel