I hope the good folks at Briskoda can help me get this straight, once and for all. Cos getting my head around the PCV valve/breather hose/inlet manifold set-up is driving me nuts. So much conflicting info and diagrams (not on this forum so much) has made me realise the OCC route makes sense.

I've got an oil leak and have been trying to sort it out. Rocker cover gasket change= still got a leak. The two mechanics I know are being really evasive (i.e; too ****in complicated for them). So I'm currently replacing a the breather hoses. I was intending to just replace the sections one by one, to avoid mistakes, but a lot of my system has been bodged badly, and some pipes just go to fresh air!Anyways I've got as far as the 'T' and, as we all know,this area tends to disintegrate and is difficult to access. I don't really know what the clump of pipes under the dipstick plate are; I'm currently trying to get the plate out! I have found the end of the breather pipe that goes in above the dipstick / oil filter area (into the manifold) is just falling out. But I've also found there's another valve in the pipe at that point.

That makes three valves! One on the 'T', one near the air filter (hockey puck) and now this one. Something strange here. No wonder my oil filler cap blows rather than sucks.

Does anyone know how to fit the rigid plastic bend piece that should be in this oil filter hole?

Are three valves found normally? Most info I've read suggests two. And I haven't even got to the 'other' branch of the 'T' section.

There's two great threads on briskoda covering this- but they're old and if I were to ask there, I'll probably get no answer since they're 2013 or something. And they don't cover the issues I'm bumbling my way through, like removing the dipstick plate, orientation of the two 'green' valves, and why my oil filler blows (Negative crankcase ventilation, if you like).

I intend to keep my VRS for at least another year and a daft oil leak is not gonna beat me.This is probably the reason the boost is poor, economy of fuel is down and the leak itself.

Thanks people

sorry mine is an AUQ 1.8T engine

I found the issue is now trying to find replacement hoses. A lot now do the simplified setup to remove as much as possible.

Unsure if this is feasable for yourself?
https://www.briskoda.net/forums/topic/155472-how-to-remove-delete-sai-n249-and-n112/

I managed to get the whole lot changed over the last two days. My primary concern is the oil leak; after getting rocker gasket replaced, next step was all the ancient hoses. So as I'd bought them, I thought I'd address the leak first- although most of the guidance on briskoda encourages the OCC and delete route. I had to read all this to help me do the job, and it sounds like the way to go. But I've done it and I'm jolly proud of myself! Wrecked my hands as expected, and have probably dropped some bits into the manifold hole-we'll see.

Only had time for a 20 miunte drive to the supermarket though; and it was too dark to check on leaks. Will update tomorrow.

But while it's in my mind, here's the troublesome bits-

scraping and digging the broken 90 degree elbow remnants from the hole; took forever. A washer came out at the end, as well as a 4cm section of pipe.Stupidly I didn't put the washer back but I did put a new one on the new elboy. The spring clip was another struggle, as it's partly under a cable mounting plate (getting it back in was the difficult bit).

the pipe that goes up from the 'T' was a hassle- I couldn't get it reach so used a section of 19mm breather pipe from a scrap vehicle, cut to size. It's not rigid plastic but I couldn't give a **** by that stage.

When I first drove off, it seemed at bit jerky in first/second gear, but that was probably my stress overthinking stuff (i.e; forgotten how to drive)

I'll drive againtomorrow. I'm hoping for better boost, economy and whatnot, and hopefully a dry oil-free parking space!

Oh yeah, the 'third' valve I mentioned was a mistake- it was simply a steel hose termination in a green shroud, that looked like a valve ..until I looked at it properly.

More later