[Rae604]

So how do you know if your serpentine belt is wearing off ? What kind I noise does it make ?

Much appreciated

[Efthreeoh]

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.

[SwUz]

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?

[Rae604]

How much did you have to pay to got your belt replaced ?

[Rae604]

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

[Rae604]

bump

[SwUz]

Having trouble opening the recording. u got anything else?

[Rae604]

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.

[Rae604]

ok here i uploaded it in youtube

let me know what you guys think ?

[SwUz]

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

[Rae604]

alright thanks for your input I'll try changing the Belt and see if that works.

[getBMWparts]

Originally Posted by Rae604

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.