Rattling brake pads
 

So, I thought it was my UUC swaybar endlinks again, but I replaced those with the MUCH better upgraded ones... and the rattling remained.

I finally figured out that it is my rear brakes that are driving me slowly insane with their noise... the rattling disappears when I put even a tiny bit of pressure on the pedal.

I lifted the back of the car tonight, took off a wheel, and figured out exactly what's rattling... the inside pads. They've got just enough wiggle room to make a racket. The hex bolts that hold the caliper are torqued just about as tight as I could get them with the leverage a regular socket wrench can provide.

So know the question I'm trying to answer is, did I do something wrong installing the pads, or is it just a case of poor fitment? They're Hawk ceramic pads.

Anyone have any idea of ways to address this? Or is the only answer to put other pads on?

Re: Rattling brake pads
 

Aren't there shim kits for that?

Did you put anti-squeal compound on the pads?

Re: Rattling brake pads
 

:dunno:

No, I didn't... does anti-squeal compound address more than just squeal? How would it help rattling?

Yeah, it sorta "cushions" the pad against the caliper. Give it a try....

I know the PO of my 740i had issues with the UUC brakes he installed. I seem to recall one of them was the pads were moving around a bit and causing a knocking sound. It was solved by changing out to a different pad.

Again - This all pre-dates my taking the car. All I know is that the brakes as they are now are GREAT. NO noise other than my wife squealing if I hit the pedal real hard... :lol:

I have the Akebono (sp?) ceramic ones installed as I remember. That and there was an 'anti rattle' shim/filler involved... I don't have the notes on my car handy now otherwise I'd look it up for you.

Good luck -

Thanks, I'll do that. Do I actually goop it on all over the little metal "hangers?"

Smear it on the backside of the pad where ever it touches anything.

http://m3.madrussian.net/diy/front_brake_pads/21.jpg

Gotcha. Thanks again.