[335dsleeper]

The entire valve cover gasket. Once it's compromised, likely in one of the runners like 335stoner suggested, it'll fill the crankcase with pressure and likely force oil out of the turbo seals and the rest of the valve cover and your oil fill cap.

Originally Posted by 32valves

The gasket to the head or the gaskets to the flapper ports?

[robnitro]

If the ccv is clogged you will force oil through the turbo seals. It happened to my tdi once where plastic cracked and got stuck in the hose that goes to intake. I found out by taking the oil cap off while idling and saw more than normal blow-by. I was able to temporarily vent ccv to atmosphere by taping closed the intake side so I could get home and fix it. After that temp fix, the smoke subsided and the turbo worked fine.

Do you have any smoke or vapour yo the left of the egr where the intake goes down into the turbo? If so, maybe your ccv rubber hose that goes into that intake pre turbo broke. Fixmyvw aarodriguez sells a replacement for that short rubber hose which often cracks.

[robnitro]

Originally Posted by 335dsleeper

^ I think you have a compromised valve cover and it's pressurizing your crankcase causing oil to push through the turbo seals and the CCV side into your compressors.

What fails or clogs in the valve cover to pressurize the ccv? Is there some kind of oil separator in the cover that can carbon and clog up??

[32valves]

I? just replaced the breather and a couple weeks ago I? did the tube that always breaks.

[32valves]

Originally Posted by 335dsleeper

The entire valve cover gasket. Once it's compromised, likely in one of the runners like 335stoner suggested, it'll fill the crankcase with pressure and likely force oil out of the turbo seals and the rest of the valve cover and your oil fill cap.

Where did you order your gasket?

[32valves]

My Provent 200 is on the way but I? know that won't help for this situation

[335dsleeper]

The valve cover gasket. It allows pressurized air (boost) to enter the valve cover/ crankcase.

Originally Posted by robnitro

What fails or clogs in the valve cover to pressurize the ccv? Is there some kind of oil separator in the cover that can carbon and clog up??

[robnitro]

So you're saying that the round intake ports go in the though the valve cover and have gaskets that can leak boost into there? I thought intake goes into the side of the head, but with this split swirl ports design I'm clueless...

Edit: I see now in real oem that yes the round ports are part of the valve cover!
http://www.realoem.com/bmw/enUS/show...diagId=11_4223

[335dsleeper]

Top intake port goes into the valve cover and then into the head. I assume it leaks there and boost pressure makes it's way inside the engine forcing oil out.

Originally Posted by robnitro

So you're saying that the round intake ports go in the though the valve cover and have gaskets that can leak boost into there? I thought intake goes into the side of the head, but with this split swirl ports design I'm clueless...

Edit: I see now in real oem that yes the round ports are part of the valve cover!

[32valves]

You guys are killing me I'm sipping as I? do this so is it the valve cover gasket or the o-rings on the flapper side.

[335dsleeper]

It’s the valvecover gasket. Failed/ leaking intake orings O-rings won’t pressurize the engine/ crankcase.

https://www.ecstuning.com/b-genuine-...t/11127796378/

Originally Posted by 32valves

You guys are killing me I'm sipping as I? do this so is it the valve cover gasket or the o-rings on the flapper side.

[32valves]

As I'm underneath my I? see my rear main seal shit the bed also...

[32valves]

Well the oil on the bottom of the car kinda looks like the rear main seal

[335dsleeper]

Pressurizing the crank case can cause all the seals to leak. Replace the VC gasket and go from there.

[32valves]

Originally Posted by 335dsleeper

Pressurizing the crank case can cause all the seals to leak. Replace the VC gasket and go from there.

Gotcha I? will do that.

[TDIwyse]

Originally Posted by 335dsleeper

Pressurizing the crank case can cause all the seals to leak. Replace the VC gasket and go from there.

Would be nice if the dipstick would pop out and vent pressure/oil before seals would leak, and give some indication of an over pressurized crank case. Had an old car that did that :-) But the 335d dipstick on my vehicle is a pretty snug fit.

There's some pics/video on this page where I used the dipstick tube to measure crankcase pressure/vacuum that might help you diagnose what's going on.

http://www.e90post.com/forums/showth...867543&page=15

[32valves]

So what all comes off to get the valve cover off?

Intake
Injectors

[Yozh]

32 valves, you had replaced your CCV with a Vaico part. What was wrong with your original, and why did you not replace with oem. They are about $60. I do not trust Vaico.

[335dsleeper]

Yes.

Originally Posted by 32valves

So what all comes off to get the valve cover off?

Intake
Injectors

[32valves]

Originally Posted by Yozh

32 valves, you had replaced your CCV with a Vaico part. What was wrong with your original, and why did you not replace with oem. They are about $60. I do not trust Vaico.

When I? took the top part off I? f*cked up the tab and it blew off so I? ordered that one from Europe. I? took apart cause oil started blowing out of that.

[32valves]

Power washed the engine and cleaned everything but left covers and pieces off so I? can find the culprit. So I? drove the car to work but drove normal. No oil leaks or exhaust smoke I'm still gun shy to mash it.

[32valves]

Originally Posted by 335dsleeper

Pressurizing the crank case can cause all the seals to leak. Replace the VC gasket and go from there.

Keep me updated when you do the vc gasket.