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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > 2006 325i Serpentine belt



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      10-16-2012, 05:08 PM   #1
Rae604
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So how do you know if your serpentine belt is wearing off ? What kind I noise does it make ?

Much appreciated
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      10-16-2012, 09:08 PM   #2
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Take a flaslight and look at the underside of the belt (the ribbed side) and look for cracks perpendicular to the belt ribs. The belt drive system will make a chirping sound if the bearings in any of the pulleys are going bad.
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      10-17-2012, 12:02 AM   #3
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Post a video or recording of the noise. I had mine replaced about 2 months ago. The belt itself doesn't make noise, but it could be worn bearings in the idler pulley. Is it less noticeable once the car is warmed?
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      10-18-2012, 04:38 PM   #4
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How much did you have to pay to got your belt replaced ?
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      10-20-2012, 12:30 AM   #5
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http://db.tt/XvfNk1v8

here's a clip of the noise, let me know what you guys think it is ? is this noise a sign that my belt is wearing off
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      10-20-2012, 07:29 PM   #6
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bump
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      10-20-2012, 07:51 PM   #7
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Having trouble opening the recording. u got anything else?
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      10-20-2012, 08:16 PM   #8
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hmm I'll upload it again, I recorded it from my phone and when I tried to upload it here it says failed. I'll try uploading it in YouTube.
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      10-20-2012, 11:33 PM   #9
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ok here i uploaded it in youtube

let me know what you guys think ?
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      10-21-2012, 05:29 AM   #10
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I had the same noise from bearings at 0:02. Not the same "Cutting" noise on top, but its probably just your belt. Parts were abt $325 shipped from getbmwparts. I do have a e92(N52), I'd check with the guys at getbmwparts first to make sure the parts are the same.

Here is a link to a similar DIY;
http://www.e90post.com/forums/showthread.php?t=627158
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      10-22-2012, 03:23 AM   #11
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alright thanks for your input I'll try changing the Belt and see if that works.
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      11-07-2012, 10:18 AM   #12
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Quote:
Originally Posted by Rae604 View Post
alright thanks for your input I'll try changing the Belt and see if that works.
PM Evan or I if you need any assistance locating the genuine BMW parts.

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