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tech4tech · 01-08-2013, 06:44 PM

There's the plastic bag over the oil fill hole test, but the suction noise seems likely to be CCV related. I am not sure how the dealers test this

01-08-2013, 06:44 PM	#20
tech4tech Registered User Join Date: Jun 2010 Location: california Posts: 120 My Ride: e46, 325i View My Garage	There's the plastic bag over the oil fill hole test, but the suction noise seems likely to be CCV related. I am not sure how the dealers test this