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Old 12-06-2012, 08:09 AM
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bluebee bluebee is offline
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Location: San Jose, California
 
Join Date: Mar 2008
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Mein Auto: 02 BMW 525i M54 auto 130K
Quote:
Originally Posted by Dnormand View Post
The new oil separator(OS) has a small port that was unplugged upon receiving it. Official BMW records say that port is "required" for my model year car.
This thread, found by typing /ccv F3 in the bestlinks, was designed to answer your question well before you asked it:

- Clarification on how the M54 CCV vacuum port works on the M52 CCV valve connection to the fuel pressure regulator connection (1)

If it doesn't answer your question - please ask over there as that's the canonical thread for the CCV vacuum port connection.

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