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Old 03-14-2010, 10:31 PM   #10
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Join Date: Nov 2006
Location: Edmonton, Canada
Posts: 2,230
My Ride: 2003 325xi
It's better to try the Seafoam treatment first because it's an easy first step. See in the above post. It may be all that is needed to clear the low flow codes. After 150K you should repeat the cleaning process several times.
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