Oil filler cap oil blow-by - Audi Forum - Audi Forums for the A4, S4, TT, A3, A6 and more!

07-21-2011 | 03:22 PM

ezy*g

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Joined: May 2011

Posts: 2

From: Kelowna

Oil filler cap oil blow-by

Oil filler cap and oil also leaking at rocker cover gasket...please help (2007 A4 2.0 Turbo) do I have a vacuum buildup?

07-21-2011 | 05:11 PM

cheeba

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Joined: Nov 2008

Posts: 725

From: Regina, SK

Re: Oil filler cap oil blow-by

Your valve cover is vented, so in order for it to be pressurized the vent would have to be plugged.

The valve cover gasket on the 1.8T/2.0T engines fail rather often - get it changed and inspect your PCV system for clogs/broken hoses/etc.

07-21-2011 | 07:38 PM

a4audi4fun

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Joined: Sep 2007

Posts: 583

From: Vancouver,BC

Re: Oil filler cap oil blow-by

PCV is a very likely candidate. Have had mine replaced under factory warranty at 55,000km.

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