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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 Today, 07:04 PM   #1
Registered User
Join Date: Jul 2011
Location: Washington
Posts: 67
My Ride: 2000 E46 328i
What to replace to cure "squeaky belt"?

Ladies and Gentlemen, my car has started to make a "squeaky belt" sound, though it could be a pulley or something like the AC component. The entire cooling system is two years and maybe 10,000 miles old, so this would be a rather early failure for a belt or pulley, right?

In any case I'm going to replace the belt at least, and have a parts question for you guys. I'm wondering what all from this diagram should be ordered, and if there is anything that should be ordered not on this list.

Perhaps one pulley is known for failure while the other is bullet proof? The squeaking continues to last for up to 20 minutes after the car has warmed up, though it's usually quieter or intermittent at that point.

Thanks for the help!
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Old Today, 07:27 PM   #2
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Join Date: Sep 2009
Location: Atlanta, GA
Posts: 996
My Ride: '01 325Cic TiAg
Tensioner and idler pulley. Do a search on this website and YouTube.
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Old Today, 08:43 PM   #3
Registered User
Join Date: Apr 2011
Location: VA/DC, USA
Posts: 316
My Ride: 2004 330i (ZHP) x2
Originally Posted by tcphoto View Post
Tensioner and idler pulley. Do a search on this website and YouTube.


iPhone and BimmerApp
Shawn in VA/DC.

- Shawn's 2004 IR/Alc. w/ 6MT ZHP (1/351 built)- http://bit.ly/1nhx4gk

- Colin's 2004 OB/Sand w/ 6MT ZHP (1/25 built)- http://bit.ly/1qT1tT1
- Shawn's 2004 OB/NB w/ AT (sold)
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