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The BMW E46 ///M3 is the M version E46 and puts out an amazing 333 HP and 262 lb-ft of torque at stock specs! There are an amazing amount of modifications for both the coupe and convertible models so read up and get started modifying your cars today!

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Old 07-13-2017, 10:54 AM   #1
Canadian///M
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LOUD squealing from rear brakes!!

Hey guys,

My car has begun to do something really strange. When I'm driving the car sounds fine but if I go over a bump or accelerate slightly hard I get an awful noise coming from I think the rear brakes. It sounds like a very high pitch metal on metal squeal.
It will not go away until I pull over and put it in reverse.
I only need to reverse like 2 feet and it stops. It is driving me nuts. The rear rotors and pads are brand new and I have taken them apart and there is nothing stuck anywhere. I think it's the shoes as when the rotor is off I can easily move them. Any suggestions??
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Old 07-13-2017, 06:23 PM   #2
Alan
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Did you bed them?

Are there any marks on the rotor?

Is the noise consistent with wheel speed?
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Old 07-16-2017, 02:23 PM   #3
Canadian///M
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No the rotors look totally fine. The noise isn't consistent with wheel speed it just starts and won't stop until I go in reverse.
Reverse doesn't always cut the noise out the last time I drove it I couldn't get it to stop no matter what I did
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Old 07-17-2017, 04:59 AM   #4
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So why not lift the back wheels off the ground and have a look???
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Old 07-17-2017, 07:10 AM   #5
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Hand brake shoes need checking is my guess

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Old 07-18-2017, 11:07 AM   #6
Canadian///M
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The rear hand brake system is completely loose. The driver side has a huge amount of play in it and I'm assuming that is the problem. I haven't dealt with brake shoes much so I wanted to wait before jumping into it but the passenger side has about an inch of movement
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