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Old 10-20-2010, 08:32 PM   #28
E46Fanatics Owner
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Join Date: Dec 1969
Location: SF
Posts: 11,929
My Ride: 03 Ti Silver M3
Just finished my M3 fuel filter change and already the idle smoothness has improved. If you haven't changed your filter recently I'd suggest it. The dirty fuel that came out of the filter was nasty!

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