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Old 05-30-2011, 09:10 PM   #4
GuitarmanTT
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Join Date: Aug 2010
Location: Ogden, Utah
Posts: 207
My Ride: 1999, E46 328i
Auto zone coder is retarded Could be the pump, check valve (back of motor) or air valve (next to pump) There is a diy on you tube on how to tell which it is. Search ( e46 secondary air system ) on youtube.

http://www.realoem.com/bmw/showparts...03&hg=11&fg=45
http://www.realoem.com/bmw/showparts...88&hg=11&fg=50
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