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Old 12-05-2011, 10:42 AM
bmw325 bmw325 is offline
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Location: New York, NY
 
Join Date: Dec 2001
Posts: 8,198
Mein Auto: 528i
My 335i makes a similar noise. I have actually read that it does have something to do w/ the fuel pump. But to the person who started this thread, don't worry about fuel pump issues on your x28. You don't have the direct injection system w/ the HPFP that cuased so much grief for x35 owners.
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