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DIY: Do It Yourself
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Old 12-02-2015, 07:11 PM   #61
The_AK
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Vlad, any updates on this? Hows the car been running since this swap?
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Old 12-23-2015, 08:57 AM   #62
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Hate to bump an old thread but would this work on a 04 ZHP??
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Old 12-27-2015, 09:04 PM   #63
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I don't see why it wouldn't, I'm really thinking seriously about this.

I wonder if there would be a conflict of any kind running the built in CCV in the M56 valve cover behind another PCV valve.... the ESS TS kits have a PCV valve in the ESS manifold....hmmm
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Old 12-27-2015, 10:03 PM   #64
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My catch can finally took out my VCG. Was driving down the road and saw smoke billowing behind me. Complete failure. Nursed it home and it currently sits in my garage completely torn down just waiting for the new gasket to come in the mail.
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Old 12-30-2015, 08:57 PM   #65
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How did the catch can take out the VCG? Did it freeze or something?
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Old 01-23-2016, 12:22 PM   #66
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Vlad, any updates on this? Hows the car been running since this swap?
Car is currently put away for the winter, but was running great; no issues.
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Old 01-24-2016, 08:43 AM   #67
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Hate to bump an old thread but would this work on a 04 ZHP??

Yes. The engine design is the same on all M54B30 engines.
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Old 01-24-2016, 11:10 PM   #68
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Job of CCV is to separate oil from going intake manifold and depositing in the intake runners and the valves. Deleting CCV is not smart.
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Old 01-24-2016, 11:12 PM   #69
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Job of CCV is to separate oil from going intake manifold and depositing in the intake runners and the valves. Deleting CCV is not smart.
There's still a CCV with this; it's just built into the valve cover.
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Old 01-26-2016, 09:41 PM   #70
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Thinking of adding this to the list of DIYs for my 330ci build. Love the idea. Replaced the CCV for my 325xi two years ago, no fun.
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Old 01-27-2016, 09:12 AM   #71
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Job of CCV is to separate oil from going intake manifold and depositing in the intake runners and the valves. Deleting CCV is not smart.

The oil catch can does the job much better than the CCV. My theory is that the CCV was designed by an engineer fired by Audi! In reality the CCV design is poor.
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Old 02-10-2016, 09:30 PM   #72
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The oil catch can does the job much better than the CCV. My theory is that the CCV was designed by an engineer fired by Audi! In reality the CCV design is poor.
Except it doesnt drain back into the oil pan, you have to keep emptying the can.

What is poor about the CCV design?
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Old 02-11-2016, 09:08 AM   #73
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Except it doesnt drain back into the oil pan, you have to keep emptying the can.



What is poor about the CCV design?

The problem with the CCV is that it doesn't provide adequate and consistent vacuum. The design is poor. Yes, an oil catch can doesn't return "oil" back into the sump. But, if you've ever seen the stuff that accumulates in an oil catch can you wouldn't want it in your engine anyway. My oil catch can is in the drug bin. Easy access for me.
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Old 02-14-2016, 11:12 AM   #74
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For anyone interested, here's what the underside of the M56 valve cover looks like. First, a closeup from above of the cap to the integrated CCV. Interestingly, I looked in TIS to see if there were any instructions on when/how to clean it, but didn't find anything. Maybe there was a BMW technical bulletin on it? The other two pictures are of the underside. It looks like the CCV portion covers the entire underside. Also a shot of what is under the cap in the first picture with the vent outlet that connects via a hose to the intake manifold.
Thank you for posting these.

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Also pictures without the plates?
See what is really inside.
Think it's service free because it's not easy to get in there.
Can anyone do this? It looks like there are just some torx screws holding on those plates, would be interested to see the "guts".

I'd love to not have to empty the oil catch can anymore....
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Old 02-15-2016, 12:31 PM   #75
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Thank you for posting these.



Can anyone do this? It looks like there are just some torx screws holding on those plates, would be interested to see the "guts".

I'd love to not have to empty the oil catch can anymore....
These pictures are not mine; they were taken by irrogical on Bimmerforums. They show the inside of the CCV chamber.
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Old 02-15-2016, 03:21 PM   #76
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Awesome, thank you, and while searching for one of these M56 covers I just stumbled accross this thread:

https://forum.e46fanatics.com/showthread.php?t=1054058

Looks like what a catch can would do, with the walls in there like that.

With my ESS TS2 kit I have a PCV already, so I bet I could remove the spring out of the CCV in this valve cover and I'd get the proper "suction" and a built-in catch can too
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Old 02-15-2016, 03:35 PM   #77
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Which leads me to the regulator. I can see the spring in the regulator from inside the serpentine chamber. I would love to take it apart and clean it or replace it given how dirty the rest of the valve cover was, but it seem certain to be damaged if I try to pry it off.

Has anyone had any success (or even tried) to replace this:



with this:



Found at: https://www.fcpeuro.com/products/bmw...ve-11127547058

Obviously I don't want to try on my intact unit! Who has a "dead" valve cover this can be tried on?
Hey I was checking to see if I could remove this and replace it, but the fitment guide only mentions the 5 and 7 series cars, not the 325i, so I guess I'm curious if it would still fit or not...
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Old 02-15-2016, 08:25 PM   #78
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OE M56 valve cover breather hose on (Part # 11157513756)


Hey did you happen to notice of the connector is different on this new breather hose, or did you only have to get a new one because of the length (and routing of the hose)?

I'm wondering if my M54 breather hose will connect right onto the M56 cover's "nipple" just the same or not...
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Old 02-16-2016, 04:12 PM   #79
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Originally Posted by rkneeshaw View Post
Hey did you happen to notice of the connector is different on this new breather hose, or did you only have to get a new one because of the length (and routing of the hose)?

I'm wondering if my M54 breather hose will connect right onto the M56 cover's "nipple" just the same or not...
Great thread! I am not sure if the CCV has ever been replaced on my 2002 325i (~128k miles)

I too am wondering about the connection to the M56 valve cover - where does this plug in?
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Old 02-18-2016, 05:10 PM   #80
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I too am wondering about the connection to the M56 valve cover - where does this plug in?
Well earlier in the thread it was pointed out that there is a new shorter CCV breather hose part number that can be used to connect the nipple on the M56 valve cover to the port on the intake manifold.

But I don't have the stock intake manifold anymore because I have the ESS TS2 kit installed. It has its own hose that runs from the stock M54 valve cover to it's PCV. I'm wondering if that same hose will simply connect onto the M56 valve cover, which would mean the "nipple" would need to be the same.

Another question to ask to get the answer I need would be if anyone knows if the new shorter CCV hose has the same connector as our stock M54 CCV breather hose? It's simply a shorter breather hose?
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