190E (W201) 1982-1993: 190E 2.3, 190E 2.6, 190E 2.3-16, 190E 2.5-16, 190 D 2.2, 190 D 2.5, 190 D 2.5 TURBO, 190E 2.5-16 Evolution I, 190E 2.5-16 Evolution II

Oil Leak

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Old Dec 18, 2008 | 12:21 AM
  #1  
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1988 190e 2.3 8v 5spd- manual trans
Unhappy Oil Leak

I have noticed that there is a leak by the oil cap of my car, my first impression is the oil cap might be messed up or worn out, so i purchased a new one, and a day later the same thing again, there is still a leak of oil coming out from the oil cap... any help??
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Old Dec 18, 2008 | 02:07 AM
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1987 190E 2.3
Could still be the oil cap. Take some pics of it.
Could also be bad PCV hoses
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Old Dec 29, 2008 | 01:25 PM
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From: Bronx NY
1988 190e 2.3 8v 5spd- manual trans
sorry... been so busy lately but here are the pics....







any ideas?
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Old Dec 29, 2008 | 04:20 PM
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It looks like it is leaking right where that puddle is forming. I dont see a trail of oil anywhere.


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Old Dec 29, 2008 | 04:57 PM
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1988 190e 2.3 8v 5spd- manual trans
here is what happens... or the trail...

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Old Dec 29, 2008 | 06:44 PM
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If that is indeed the trail, as I will trust you can see it where I cant lol. Then I would guess you didn't get a new rubber seal for the new cap. The old one probably fell apart so you bought a new cap and it didn't have one. If that is true, that is your problem. If you have a rubber seal on the cap, I am lost.

If you can, remove the cap and take a picture of where it goes.


Lastly, why does your motor oil look red??
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Old Dec 30, 2008 | 08:34 AM
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1988 190e 2.3 8v 5spd- manual trans
thats just the flash... lol i will try to take some pics tonight of it....
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Old Dec 30, 2008 | 09:44 AM
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Originally Posted by tnez190e
thats just the flash... lol i will try to take some pics tonight of it....
ooops. Thought maybe you had that marvel mystery oil in there or something.
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Old Dec 30, 2008 | 12:02 PM
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'85 190E 2.3-16 '99 C280 '11 GLK350
You might want to check your air filter to see if there's more than just a bit of oil in the housing.

If so, it could mean that there's excess pressurization under the valve cover, from either the valves or the crankcase ventilation system. That pressure could be forcing oil past the cap seal.
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Old Dec 30, 2008 | 05:15 PM
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Get a can of brake clean and spray everything down and take it for a drive. Then see where the oil is comig from.
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Old Dec 31, 2008 | 03:56 PM
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Originally Posted by Gullwing
Get a can of brake clean and spray everything down and take it for a drive. Then see where the oil is comig from.
He said there is a trail of oil coming from the cap to that puddle. At least thats what I gathered.
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Old Jan 1, 2009 | 02:33 PM
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Originally Posted by PhilipM3
He said there is a trail of oil coming from the cap to that puddle. At least thats what I gathered.
Could be more then one leak
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Old Jan 5, 2009 | 03:52 PM
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From: Bronx NY
1988 190e 2.3 8v 5spd- manual trans




i dont know if these pics work... if they dont i can take some when is still bright outside to get more light and less flash
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Old Jan 8, 2009 | 05:03 PM
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I think you are missing the rubber peice on the cap that helps keep the oil in. Did the new cap come with a rubber piece?
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Old Jan 9, 2009 | 09:40 AM
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1988 190e 2.3 8v 5spd- manual trans
No, it was just the cap that came in the box. I will do some research to see if i find a rubber seal for it.
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Old Jan 9, 2009 | 10:24 AM
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190E 2.6
My 190E has the exact same problem and i have to top off the oil about once every 2 weeks and its starting to become costly so if anyone finds anythings out please lemme know
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Old Jan 9, 2009 | 04:46 PM
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From: Bronx NY
1988 190e 2.3 8v 5spd- manual trans
out of these two, which one should i get??

http://www.autopartsworld.com/1988_m...ket_parts.html
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Old Jan 10, 2009 | 12:33 AM
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your head gasket doesnt look the best either thats not the worst repair to do but if the cap still isnt working i would replace the gasket and see if that helps
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Old Jan 10, 2009 | 12:34 AM
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oh and both those cap gaskets are under 3 dollars just get both to be safe
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Old Jan 27, 2009 | 01:53 PM
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Do you mean headgasket or valve cover gasket? I had the same puddle and replaced the valve cover gasket and solved that problem.
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Old Jan 29, 2009 | 01:38 AM
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1993 190E 2.6
Yeah I think its the valve cover gasket. Mine leaks as well. Its worst when you are parked facing downhill. If you can park flat or up hill and it wont leak as bad. I tried a can of Restore engine restorer in my 190E 2.6 and for the time being it has worked. Sealed up the leak for the time being.
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Old Jan 29, 2009 | 09:30 AM
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1988 190e 2.3 8v 5spd- manual trans
yea i also think its the valve cover gasket, i ask strass how much would that be and the part is like 75 but the labor is almost 400 so i think i will wait, i will have to buy some of that restorer and give it a try.
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Old Jan 29, 2009 | 10:05 AM
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1988 190e 2.3 8v 5spd- manual trans
or maybe i wont, i saw some pretty bad reviews, some talking about engine blow up, i dont think i want that..... I'll just wait to talk with my ppl see who can give me a hand at doing it myself, im pretty sure it is not that hard to do it myself having the right tools and parts
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Old Jan 29, 2009 | 07:26 PM
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Originally Posted by tnez190e
yea i also think its the valve cover gasket, i ask strass how much would that be and the part is like 75 but the labor is almost 400 so i think i will wait, i will have to buy some of that restorer and give it a try.

NO! NO! NO! You can buy the valve cover gasket at www.autohausaz.com for something like $14 shipped and you can DIY in 1 hour working at a leisurely pace.

The $400 sounds like a head gasket job.
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Old Jul 14, 2009 | 10:02 PM
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1988 190e 2.3 8v 5spd- manual trans
Exclamation

Originally Posted by Sincity
Do you mean headgasket or valve cover gasket? I had the same puddle and replaced the valve cover gasket and solved that problem.

so after 10yrs i finally changed the valve cover gasket, and after 10mins of idle it leaked again, this time since everything was nice and cleaned i know its coming from the cap, but that cap is a new one, what I will do next is just get a new cap from MB dealer, could that be the problem??
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