Blowing oil from the filler cap
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02-04-2013, 09:40 PM
Join Date: Sep 2011
Location: TEXAS - Circuit of the Americas doing laps with my M5 and coming in for a pit stop.
My Ride: 03 330iT SportWagon
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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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