Oil leak-sort of.
 

Hi guys, have a little problem where oil is getting pushed passed oil cap? Replaced oil cap, and found one of the breather pipes off, after sorting that it stopped for a while but now it's back again. Any ideas? :Confused:

You have a breather problem somewhere and it's building too much pressure.

If you post more detail like what engine it is, MJ i'm sure will know the likely candidates to look for

Are there any valves? Checked pipes and can't see any cracks.

Engine is 2.8. I'm starting to feel bad now, I've asked MJ so many questions :ROFL:

Might be a broken or duff PCV Valve causing too much pressure - not too expensive for another one. . . .+++

Would you have a part number? Can't find it anywhere on parts catalog.

I've got a spare one kicking around somewhere, I'll see if there's a part number on it if I can find it.

Edit: 077 103 245 B Loads on eBay. Not sure of the condition of the diaphragm in mine though it works OK.
I think it's the same unit for loads of different VAG engines.

Just popped it open, it's fine though a bit oily as you'd expect for a used one.

There are only 4 components in the whole thing: plastic top and bottom (clip together), spring and orange diaphragm.

Happy to sell it for a fair price. I think I changed mine because of my weird engine problems that dragged on for ages where I was trying everything; which all turned out to be a hair-trigger brake switch.

Already ordered one, but thanks for the offer. +++ this car better not have any oil leaks after spending fortune on seals :ROFL:

Ok stupid question, bit where does the valve go? Couldn't find it for life of it :Confused:

Take the engine cover off and it's staring you in the face at the back in the middle.
You might need a Clic-R tool to get it off easily.

Erm, late to the party sorry. The V6 doesn't have the round separator pod that the V8 does.

The V6 breather system has some fragile plastic pipes which join the two cam covers to the throttle body. The plastic breaks, often in several places, meaning there's no vacuum in the crank case hence why the V6 leaks oil like the Deepwater Horizon. There's a separator in the gubbins down by the throttle body boot IIRC, and a few more plastic pipes. Other than the main pipe on the top, the rest are a total arse to get to. The manifold has to come off really. The packaging on the V6 round there is pretty awful.

Ooops, sorry I missed that. :o

Two links you might want to check out. Neither relates directly to the 2.8 V6 in the Audi, but they are for a 2.8 V6 fitted in a Passat, so in theory, should be the same or very similar (but then we know that VAG never keep anything the same!). If nothing else, they will give you an idea of what you're looking for.

This first one is a diagnostic procedure for determining if you have a leak, and requires a pressure gauge and VCDS:

https://web.archive.org/web/20120412...leakhowto.html

The second one is a YouTube video showing replacement of the entire breather system:

https://www.youtube.com/watch?v=4_BVzgOb2rk

And yet again I assumed everyone had what I have! Mine is a 2.8 :o

Yes sorry, as noted just above, I missed that.

Thanks again guys. The pipes I could get to are all good and not cracked. Next job might be getting inlet mani off and see what's what. +++