I got my 2003 A4 1.8T quattro about 2 months ago. The used dealership i bought it from put new pads on the rear wheels because it needed to be done for certification. They might have put new rotors on as well, i'm not sure on that.


But they squeal SO LOUD! Only the rear wheels. When i first start out driving there quiet but after i have been out there for a while they start to squeal all the time. It doesn't happen when push really hard or lightly on the brakes, just in the middle area it has this high pitch squeal!!

The pads they put on have tones of pad left. Are they cheap?? It's embarrassing to be driving my audi like this!

 

You are experiancing glazing my friend! What happens is when you step on the brake it get glazed in this material released from the pad and high heat, and then it creates the squeal at certain pressure, because the disc is still slipping freely and scrawtching this glaze. Go out on an empty road and accelerate up to 80km/h and then slam on the breaks down to 10km/h and DO NOT STOP! do the same thing two three times, and the problem will go away for a while. This only happens due to the glazing. Make sure you do not stop though, because if you do glazing will happen again. During your accelerations and slow downs cool it off a bit so make usre you are on a long stretch of raod so it can cool of while you drive, and not use a brake, I recommend an empty highway.

 

doesnt even have to be as fast as 80 km/h if its not permissible. like he said, just do some hard breaking and it should wear off the glaze.

 

i gave this a shot and it made the squeal even louder...

Maybe because they got so hot from braking so hard. I did the accelerate to 80km/h brake hard down to 10km/h, keep rolling, then i would do it over again. 4 times in a row but then i did end up coming to a stop sign a few minutes after.

 

mine had similar problem. almost new brake pads, but squeal loud. I took it a part, one of brake pad's back plate loose/almost off. did a little mod and put some brake quiter gel on it. no problem at all now.

better have it a checked.

 

Still making the squeal?

 

yes, i gave it another shot this morning. I cruised for a long time without breaking after doing it three times, and it came back. I put a bit of brake squeal gel on the back of the pads and it helped a bit.

any other advice? Or should i take it to the shop?

 

I forget, but is the rear disc brakes? if it is maybe they did not use any of the brake slipp material on the back of the pad, its like a thermal paste so the pads dont slip, or a possibility that they are worn down?

 

yeah it's the rear disc brakes and the pads are still really thick. Not sure if the rotors are bad, they feel pretty smooth. Can i buy that paste and put it on myself?

thank for the help btw.

 

yup you can Auto value has it for under $10, can you do it yourself? How good are you with changing breaks? You have to disassmbel the back to get to the pads and then aplly it to the back of the pad, so it is basically like changing breaks. My Suggestion would be to go to tirerack.com and compare the brake pads that they have for sale on there and look at noise and stopping power. And just swap them out if you are already going through the hassle of adding that compaund