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Old 02-04-2013, 08:40 PM   #5
BMWCaptain
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Join Date: Sep 2011
Location: TEXAS - Circuit of the Americas doing laps and coming in for a pit stop.
Posts: 2,348
My Ride: 03 325iT SportWagon
The CVV is the crankcase ventilation valve, BMWs version of a pcv valve. It is located under you intake and can cause oil problems with the engine if it gets clogged or frozen.
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