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      01-03-2011, 02:06 PM   #2
Richwm
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Drives: 06 E90 330i 6MT, 01 E46 330i
Join Date: May 2006
Location: Canyon Country, CA.

Posts: 870
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When my idler pully went bad it whined but it was a lot louder and kinda sounded like a supercharger. Does the wine increase with the throttle? If so you can try it it was only like $70 and took 20 min to change.

Its item 1 here http://www.realoem.com/bmw/showparts...40&hg=11&fg=18

Tisher has them for $86.05
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Mar 05 Build date,2006 E90 330i, Sport Package, Premium Package, TR MT-1's . V-1 Hard-wired power with custom V-1 Concealment Display . Rear fogs, Rear power outlet's, M short shifter knob, BlackLines, BMW Strut tower bar, CDV Delete, M3 wishbones + tension struts, BMW Performance shocks and springs, BMW Performance Brake kit F&R, OEM short shift kit.
177K miles.

Last edited by Richwm; 01-03-2011 at 02:12 PM.
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