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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Clunking noise after brake install



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      07-10-2012, 08:29 AM   #1
vasillalov
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Clunking noise after brake install

Ok folks,

I've installed brand new OEM front rotors and pads over the weekend. I also did a brake fluid flush. I torqued everything down according to manual and this is not the first time I am doing the brakes on this car, so I am fairly confident everything is assembled correctly.

I am now running Performance Friction 08 pads. What I noticed is that they did not come with retaining clips on the back of the pads. They sort of just sit on the calipers. So now, every time I go over a small bump they clunk and clank. But if I go over the bumps and apply the brakes slightly, there is no noise.

My questions:

* Is this normal for pads that don't have retaining clips?
* Should I be worried about anything due to the lack of those clips?
* What can I do to minimize the clunking noises when I go over bumps?

Thanks in advance
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      07-10-2012, 12:05 PM   #2
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Yup, my stockers rattled, and my cc pads rattle since the outer pad sits loose. My understanding is that the Hawk HPS pads come with an anti rattle clip for the outboard pads since that big ass springy retainer thing BMW uses is not strong enough. You can even hit the tire with your fist and hear it rattle.
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      07-10-2012, 02:24 PM   #3
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unfortunately, yes as long as it is not excessive. try and confirm its coming from the pads
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      07-10-2012, 11:45 PM   #4
vasillalov
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Quote:
Originally Posted by ericruiz911 View Post
unfortunately, yes as long as it is not excessive. try and confirm its coming from the pads
Yes it is. I took the wheel of and gently whacked the caliper with a rubber mallet. The brake pads made that noise I am hearing when going over bumps. I love my new pads for their braking performance, but I absolutely despise them for lack of retaining pins.

...and you'd expect a respectable company like Performance Friction to include retaining pins on pads that cost $260.00 for the front.
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