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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 04-14-2011, 04:55 PM   #1
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Join Date: Apr 2011
Location: Eugene Or
Posts: 1
My Ride: 2003 325i
Squeaky Tensioner

My Fiance has a 2003 325i and it started having a squeaky noise coming from the engine compartment. You can mostly hear it when it is idling. So from my research sounds like it is a belt tensioner, it probably has the mechanical one, but I have not been in there to see yet. I see that most people convert over to the hydraulic one. My question is this: what is the best way to go about fixing it. First off I see at my local Autozone have a replacement for the mechanical one that has a one year warranty and says it is improved from the original one. Would this be a good option. The problem is that I would go with the conversion but I dont know where or how much that will all cost. Right now with getting married I dont have a lot of extra cash. And if it is a good option to go with the autozone one since it is only $54.

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Old 04-14-2011, 06:27 PM   #2
Registered User
Join Date: Mar 2009
Location: Rochester, NY
Posts: 190
My Ride: 325xi
just get the pulley - the conversion kit isn't an improvement its all hype.

You have 2 tensioner pulleys, DAYCO 89133 and 1 idler pulley DAYCO 89089

I replaced all 3 but you can probably get away with just replacing the tensioner pulleys.

rock auto has the cheapest price on these.

This has some good diy info http://forum.e46fanatics.com/showthr...ayco+89133+diy

Last edited by wildcat293; 04-14-2011 at 06:32 PM.
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