E-Class (W211) 2003-2009

Guys what is this leak that I知 having ? E320cdi

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Old Sep 5, 2019 | 02:26 AM
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From: chandler arizona
2006 E320CDI
Guys what is this leak that I知 having ? E320cdi







I was looking around the engine bay today for fun yes I do that I randomly take my engine cover off to see if my engine is happy. Today it wast happy I noticed a leak. I don稚 know what it is and that is why I知 here to get some info and see if anyone痴 ever DIY this repair. Thanks in advance. 4th pic from the top.
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Old Sep 5, 2019 | 01:50 PM
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looks good...dont see any <major> leaks.

you can always clean the engine at the self serve carewash, then you can see if any new oil comes out/seeps for a better assessment of leaks
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Old Sep 5, 2019 | 05:10 PM
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From: Frederick
2000 ML320, 2005 E320 CDI
The oil cap has a seal under the entire peice, it is leaking. The intake was unbolted and rebolted too loosely and is leaking on the other side. I had both of these issues and new gaskets ($20) fixed it.
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Old Sep 5, 2019 | 10:07 PM
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From: chandler arizona
2006 E320CDI
Originally Posted by boardboy330
The oil cap has a seal under the entire peice, it is leaking. The intake was unbolted and rebolted too loosely and is leaking on the other side. I had both of these issues and new gaskets ($20) fixed it.
ok, do you happen to have part numbers for them? Also I tried to look at a diy it seems to be a big job but i may be wrong, should i try to tighten the bolts see if that will fix it? Whats the best course of action here?
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Old Sep 6, 2019 | 10:55 AM
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From: Frederick
2000 ML320, 2005 E320 CDI
I will find part numbers. Honestly neither is a big job - unbolt, replace gasket, new bolts. I will update later when I find part numbers.
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Old Sep 6, 2019 | 01:43 PM
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From: chandler arizona
2006 E320CDI
Originally Posted by boardboy330
I will find part numbers. Honestly neither is a big job - unbolt, replace gasket, new bolts. I will update later when I find part numbers.
okay thanks, I checked the job on Alldatadiy, it looks like theres a lot of parts that need to be removed to replace the intake manifold gasket. The other one doesn't seem to be as difficult.
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Old Feb 13, 2020 | 11:01 PM
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05 mercedes e320 cdi
I feel your pain

Originally Posted by mzg23






I was looking around the engine bay today for fun yes I do that I randomly take my engine cover off to see if my engine is happy. Today it wast happy I noticed a leak. I don稚 know what it is and that is why I知 here to get some info and see if anyone痴 ever DIY this repair. Thanks in advance. 4th pic from the top.
I took the intercooler pipes and the connector that attached to the intake( were your leaking on the drivers side) to clean them out. It was ridiculously clogged. When I reattached with the old metal gasket, it leaked like yours. I replaced with a new metal gasket and it is still weeping. Not sure why. It is a bit of a chore getting it off because you do have to take a number of parts off but it is diy, just given yourself enough time. Also my oil cap leaks after 3 different mercedes oil caps and a new air/ oil separator. Not terrible but it eventually makes a mess. Still trying to figure it out but the wife drives it daily so it doesn't get a lot of down time. Let me know if you figure it out.

Needed cleaning. Same part that is leaking on your drivers side.

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Old Feb 14, 2020 | 11:53 AM
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Looks like that might be oil spill during change 5 years ago.
Wash the engine and recheck after some driving.
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2005 E320 CDI, 2015 GLA 250
I too, removed the intercooler pipes and replaced the intake manifold gasket and mine still leaks.

Maybe two gaskets would help seal across the not too parallel surfaces?

Peter
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Old Feb 16, 2020 | 08:16 AM
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05 mercedes e320 cdi
I was thinking maybe a thin layer of gasket sealant maybe. I'm not sure.
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