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      12-25-2020, 11:09 PM   #10
bluewater328
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Drives: 2011 bluewater 328i LCI sedan
Join Date: Aug 2010
Location: Hawaii

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Filter is integrated into the fuel regulator. The suspicion is the folks who have a failed regulator being that the filter gets clogged and pressure needs to be relieved somewhere (which is usually a small fissure near the top). Still only a "pretty good theory" but you get the idea
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