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Old 06-17-2011, 04:21 PM   #4
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Join Date: Mar 2007
Location: West Point, NY
Posts: 1,450
My Ride: 2001 330Ci
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I didn't think the oil separator had much to do with oxygen sensors. I had work done on my oil separator from BMW since the codes started more than a year ago. I think they would have caught it, or I'd like
To think so.
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