E46Fanatics - View Single Post - DIY: OE Oil Separator alternative --> E39 M5 OS
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Old 02-28-2012, 02:36 PM   #6
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Join Date: Apr 2010
Location: Chicoutimi, Quebec, Canada
Posts: 102
My Ride: 325xiT and E30S50
Originally Posted by Drewfus2101 View Post
Good post.

Did you use a PCV valve as a check valve between the dip-stick and OS?
No, I just connected the original hose to the bottom of the M5 OS.

And thanks drewfus! I measured the plastic original part and draw the adapter. I can provide the drawing if required.
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