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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old Today, 02:22 PM   #1
Registered User
Join Date: Jun 2014
Location: Spain
Posts: 61
My Ride: BMW 330CiA '04
Problem with CCV (adapting M5 Separator)

Hello guys,

I'm trying of use the M5 oil separator in my car but I'm having problem because my car is sucking oil up, so I don't know why this is happening

I follow this thread:

But in the intake I don't use the adapter, I use the oem configuration, just changing the CCV OEM for CCV M5.

I connect the crankcase in the lateral and the up conection for the intake.

Finally I had a PCV358 and I have tried to put in the intake hose for see if work good and I have broke the crankcase gasket!!
Beforte to broke the crankcase gasket I tried to open the Oil cap and I had a lot of pressure, was dificult to open it.

So I dont know what could be the problem, maybe I'm connecting bad?
Because I found this web (http://vsetrack.com/track_reports/20..._separator.htm) and they connect diferent (but in the DIY and in the original M5 engine, they use the same way than I used)

Please, I know that I could solve it using the OEM CCV, but I would like know and use the M5 CCV and why don't work good

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Old Today, 02:25 PM   #2
Registered User
Join Date: Nov 2009
Location: Fairfax, VA USA
Posts: 15,710
My Ride: 330CiC, M5, X5
Just use an OEM CCV system.

You likely will only ever need to install one on the car in the car or your lifetime.

Not sure why everyone wants to re-engineer these cars with catch cans and other CCV options.
Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temp, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose temp switch O-ring - BMW #13621743299
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