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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 09-05-2007, 05:16 PM
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SPLITSENSETAM SPLITSENSETAM is offline
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Mein Auto: 97 BMW AUTO 528I
new brakes installed & having high pitch yelling sound..what now?

hey eveyone ! i just had new brakes installed on my 528i i went with the oem brembo rotors and pagid pads all around the car cause i was thinking it will produce the less noise possible ..everything is all good with very little noise except when i depress the petal down at about 1/4 at very slow speeds i get a high pitch yelling type sound and goes away if i go down more towards the 1/2 way mark ?...what gives ? how can i cure the problem?

thanks !
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  #2  
Old 09-05-2007, 05:24 PM
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MatWiz MatWiz is offline
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Did you install the shims? Their job is to prevent the vibrations that create the noise.

But I never install the shims...

You need to bed the brakes, and the noise will go away. Look at www.zeckhausen.com for the bedding procedure.

Anyway, if you don't do anything, it will do away after a few weeks.
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  #3  
Old 09-05-2007, 05:45 PM
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SPLITSENSETAM SPLITSENSETAM is offline
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to tell you the truth i have no clue i had my indie install them for me.
im guessing he didnt ...how long am i gonna have this sound for does it mess anything up?

if it goes away within the weeks im fine with that ..

thanks matwiz!
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  #4  
Old 09-05-2007, 06:07 PM
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MatWiz MatWiz is offline
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Well, do the bedding anyway. It's a great thing to do to your brakes, and it is a lot of fun, as it involves driving you car like a maniac...

See my post here for a shot explanation about the bedding process. here: http://www.bimmerfest.com/forums/sho...d.php?t=228458
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Old 09-05-2007, 06:16 PM
Rainman15 Rainman15 is offline
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When I did my front pads I missed one shim and didn't realize it until after I was putting the wheels back on. I figured it wouldn't make a difference, but I ended up with the exact same squealing you are describing. I took that side back apart and installed the shim. Problem solved, dead silence under all braking conditions. I couldn't believe that one shim made that much of an impact on the way the brakes worked and sounded. I'd bet he missed one or all of your shims when he did your installation. Steve/Staten Island.
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Old 09-08-2007, 09:04 PM
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Mein Auto: 98 740iL - Tweaked a bit
You need shims and/or brake pad lube on the backside to stop the squeeling...it won't fix itself unfortunately.
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