I replaced the brake pads and rotors on my '05 R53 and after I did I now have a "squeak squeak squeak" but goes away when the brakes are depressed so I know it's brake related but can't find the cause and is driving me nuts. And the squeak gets faster with speed. I have removed the calipers and pads and didn't find anything. I do notice if I wash the car or the brakes get wet the squeak goes away until the dry out. I can't tell whether it's the front or rear but think it's on the driver's side. What did I overlook? I also replaced the brake sensors too.

 

Pull the pads and apply CRC Disc Brake Quiet (or similar) to the back of the pads before reassembly. It's a rubber-like, anti-squeal, anti-vibration substance that helps eliminate just this type of sound.

 

Are the rear inside pads properly mounted using the spring to attach them to the lip of the rear caliper piston? If that's not done, then the pads aren't secured properly, mobe back and forth against the caliper and can result in squeaking and/or rubbing sounds.

 

Does that actually make a difference? Just on the side where the piston makes contact?

 

Yes they are attached, I double checked.

 

Yes i double checked that.