Xoutpost.com - Had the dealership look at my brakes

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- - Had the dealership look at my brakes (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/23846-had-dealership-look-my-brakes.html)

supersteve

12-08-2006 11:06 PM

Check out this site. It's from Bosch but it explains why "The Cleaner" and I are both correct.

The first section talks about causes of noise. The third section talks about brake break in.

The Burn in I have been talking about is to cure the pads in a controlled way and apply some material to the rotors.

According to Bosch not all pads are created equal.

Enjoy the weekend (if you get one).

SS

supersteve

12-08-2006 11:07 PM

oops

supersteve

12-08-2006 11:07 PM

http://www.boschautoparts.com/Resour...s/BrakePad.htm

Double OOPS!

JCL	12-03-2010 03:43 AM

Quote:

Originally Posted by andreasue (Post 785367)

Maybe that squeaking sound it the rust itself? Oh God i am always applying WD-40 on my breaks hoping to remove some rust. So tell me is it bad for my breaks? So far i am not hearing any squeaking sound in my car maybe because i maintained it with anti-rust spray.

Applying WD40, which is a water displacing product that includes mineral oil, to your brakes, is a very bad idea. Brake pads are not designed to be contaminated by oils and still have the proper performance characteristics (friction, durability, etc).

Squealing brakes are caused by the pad vibrating. You can isolate that vibration so that it doesn't carry through the caliper, when you hear it, by using high temperature grease on the ears of the pads where they touch the calipers. There should never be lubricant applied to the friction surface. Never.

apetrov1x5

12-03-2010 09:21 AM

Quote:

Originally Posted by JCL (Post 785369)

Applying WD40, which is a water displacing product that includes mineral oil, to your brakes, is a very bad idea. Brake pads are not designed to be contaminated by oils and still have the proper performance characteristics (friction, durability, etc).

Squealing brakes are caused by the pad vibrating. You can isolate that vibration so that it doesn't carry through the caliper, when you hear it, by using high temperature grease on the ears of the pads where they touch the calipers. There should never be lubricant applied to the friction surface. Never.

thank you, but what are the main causes of pad vibration?
I changed my rotors/pads (used ones) about 500 miles ago and the squelling is still there :(

JCL	12-03-2010 12:31 PM

Quote:

Originally Posted by apetrov1x5 (Post 785388)

thank you, but what are the main causes of pad vibration?
I changed my rotors/pads (used ones) about 500 miles ago and the squelling is still there :(

Glazed pads (which have a different coefficient of friction than fresh pads)
Glazed rotors (same result)
Pads not installed properly (HT grease on pad ears, anti-rattle clips, etc)

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