2009 E-350 W211 - Engine M272 - Oil sipping at back of the engine - Mercedes-Benz Forum
 
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post #1 of 5 (permalink) Old 06-24-2019, 01:07 PM Thread Starter
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2009 E-350 W211 - Engine M272 - Oil sipping at back of the engine

Hello all. I have 2009 E-350 W211. I has the M272 Engine it it. At the back of the Engine, there is small black looking holder, it seems like oil vapor return line that goes into it. The black holder seems to be sipping some oil. It is not leaking, but you can see some sip-page of oil. Below are the photos.

Can any one please kindly guide me to what is this small black plasticity looking container is and why I am seeing oil sip-page there.

Again my car is 2009 and has M272 engine in it.
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post #2 of 5 (permalink) Old 06-24-2019, 01:36 PM Thread Starter
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I found some of the photos of M272 Engine. Please see below, this is where oil is slightly showing some sipping.

What is this and what I need to do to fix this oil sipping before it gets worst.
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post #3 of 5 (permalink) Old 06-26-2019, 06:54 AM
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Do you mean Oil seeping, seepage, seeps?
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post #4 of 5 (permalink) Old 06-27-2019, 05:36 AM Thread Starter
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ot1, yes, I mean to say oil seepage or oil seeping from that black looking housing right under MAF and engine. If you know what I need to do or should I be worry about it to look into it.
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post #5 of 5 (permalink) Old 07-02-2019, 07:09 PM
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What I'd do is remove the MAF sensor and look. Even if you are completely DIY inept, you should be able to do this yourself. Watch this video, dont clean the MAF, just for procedure.


Once its off you should be able to see. My only guess is valve cover, crankcase vent system or its the cam covers that are just leaking downwards. There is no oil seepage from the MAF itself.
https://www.fcpeuro.com/products/mer...es-2720100631k

ALL the M272 crankcase vent valves leak. If it hasnt been done yet, its probably time. Just remove the bolts with a torx piece and swap out. Easy as that. Dont pay anyone.

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