A6 / S6 (C6 Platform) Discussion Discussion forum for the C6 Audi A6 produced from 2004-present and Audi S6 produced from 2007 - 2011

Faulty PCV Valve?

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Old Sep 10, 2023 | 07:48 AM
  #1  
darekdani's Avatar
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Default Faulty PCV Valve?

Hello.

I replaced the PCV Valve (Esen brand) on my A6 C6 (2010) in May.
I noticed if I want to take off the oil cap when the engine is running, I need fairly a lot of force to remove the cap, almost "impossible" with a single hand.

Is it possible that the replaced PCV Valve is already faulty? I barely drove like 3.000 kms since I replaced it.
Is there another way(s) to test, and make sure it's the PCV Valve that's failing?
PCV Valve kit I bought runs under this ID: 31SKV005 SKV/O

I appreciate any help or ideas!
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Old Sep 10, 2023 | 11:00 AM
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Which engine does your 2010 A6 have?
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Old Sep 11, 2023 | 10:39 AM
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darekdani's Avatar
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Sorry, I forgot to mention. It's a 2.0 TFSI EA113.
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