E-Class (W211) 2003-2009

Water in Oil (Milky Oil) W211 Gas Vol. FML

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Old Jan 2, 2014 | 08:17 PM
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JunkYardBenzzoo's Avatar
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2005 E320
Water in Oil (Milky Oil) W211 Gas Vol. FML

Did my first oil change a few weeks ago after buying the car and noticed that on the bottom of the oil cap and inside the oil filler neck housing there is milky oil residue. I haven't driven it except for a few times like when I first bought it (repairing light front end damage) but it runs fine and passed smog already. The milky residue is only on the oil cap, not in the filter, and not in the oil in the bottom of the block when checked with the dip stick. I'm praying this is just condensation and not the beginning of a blown head gasket or cracked head problem. Car has 119k, doesn't over heat, and none of the cooling system suffered damage from the impact. Anyone seen this before in these engines? I asked one Merc Dismantler in my area and he said those engines are pretty bullet proof. Thanks in advance.
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Old Jan 2, 2014 | 09:14 PM
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W205, X253, C190, W213,
Sounds like an oil cooler seal leak. Not too bad a fix... around $300.
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Old Jan 2, 2014 | 09:18 PM
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Could you elaborate on this please. I'm not to familiar with the 211s.

Originally Posted by irondad
Sounds like an oil cooler seal leak. Not too bad a fix... around $300.
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Old Jan 2, 2014 | 10:44 PM
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2004 E320 4matic
I have an 04 E320..been doing that since I bought it 3 years and 100,000 miles ago. Car now has 200,000 miles and runs just fine....I wouldn't worry about it
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Old Jan 2, 2014 | 11:07 PM
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Originally Posted by Schmitty4796
I have an 04 E320..been doing that since I bought it 3 years and 100,000 miles ago. Car now has 200,000 miles and runs just fine....I wouldn't worry about it
good to hear I think. have you ever investigated it?
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Old Jan 2, 2014 | 11:27 PM
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Have the oil tested for glycol, and check the coolant for oil.


If both are ok, it is just condensation.


Take longer drives.
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