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  #1  
Old 10-06-2016, 09:41 AM
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Best CCV delete video I've seen on the Net for M54 BMW

https://www.youtube.com/watch?v=Biyu...4&feature=em-u
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Old 10-06-2016, 10:58 AM
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It looks pretty good but those are some long runs going to the catch can IMO - I do like that he integrated a drain line with a check valve though - very clean install.

He should have used a better quality catch can though and put clamps or zip ties on his hose connections and adapters the first time though lol
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Old 10-06-2016, 07:33 PM
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BMW CCV are used because the intake is lower than the valve cover IMO.
I ran a CCV delete on my 02 X5's without a catch can.
IMO when we do a CCV replacement hose etc we overlook the dipstick drain.
After some time that drain line builds up with carbon deposits and oil, restricting the flow.
I've seen on some forums that people replaced their CCV system and are still blowing white smoke. (cold weather)
Just a thought when we leave our vehicles overnight (colder weather) the moisture in the air will condense on top of the oil in the engine. When you start the engine and check the oil filler you'll see Mayo. With the Mayo in the system and the dipstick drain line restricted the oil/mayo will start to back up into the CCv and then be sucked into the intake.
Also, a slowly running drain line will give the oil time to cool and capture more moisture and freeze the dipstick drain.
The catch can method (colder weather) will catch more condensate IMO.
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Old 10-06-2016, 07:43 PM
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I saw some talk of using the M56 SULEV valve cover (built in serviceable CCV system) as a replacement M54 system. Sounds like a nice alternative way to do it.

The Permanent M54 CCV Delete - E46Fanatics
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Old 10-07-2016, 09:20 AM
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Quote:
Originally Posted by g300d View Post
I saw some talk of using the M56 SULEV valve cover (built in serviceable CCV system) as a replacement M54 system. Sounds like a nice alternative way to do it.

The Permanent M54 CCV Delete - E46Fanatics
It is IMO the best way to do it - you get rid of VCG problems, plastic valve cover, and the external CCV (and the potential for drain tube freezing) all in one shot - More costly, but an OEM solution, and no "moisture collector" of a catch can installed too.

Once every 80k miles probably can clean it out, and be good to go. One short hose from valve cover to intake manifold air distributor and thats it.
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