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Hi, I understand what you say, and will take it off and come back to normal. BUT, seeing the original breathing system, I can assure you this one breath a lot better!! The diameter of the PCV is ridiculous, and have you ever try to blow into it??? That does not explain why there is a blue smoke ONLY...

Ahah! I was thinking about this. Audi told me it was ok, but i thought it was too small. Everybody thought the same around but audi. I'll do a complete change of that piece, and let you know. On the other hand, with knew stem seal, the problem should have been solved for a while no? The car smoked t...

Hi, here are some pics: The modified oulet that comes from the top cams cover to the OCC http://imageshack.us/a/img16/379/20130407115925.jpg And the home made catch can: on the left entry, the hose from the cam cover, and the other one is a breather (there is a small air filter). bottom is a purge. ...

RS4pete wrote:Could this be a faulty PCV valve?

Hi,

Actually, i took out the PCV!! there is no more return to the motor. That's the oil catch can taht does it.

I'm thinking about getting a return to the crankcase, as original. At the moment, the little return hose to the crankcase is plugged.

I there, no, there's no frog in the engine, only in the driver seat! :biggrin3: I'm new on the forum, so before talking about a big trouble on my 07 RS4 avant, i wanted to present myself. I'm French, turning 39 in few days. Got my 07 RS4 since 02/13, the car has been De-coke by myself and the oil re...