i notice after a 45 to an hour of stop and go traffic my brake starts to squeak
when i come to a stop.i dont think this is normal right?if i go to a dealer do i get charge
for them to look at it?i still have factory and extended service warranty.

 

My brakes do the same thing, but all the time. I put brand new pads and rotors on the car, and it still makes the noise. The brakes only make noise at low speeds right before I stop. My friend with a 330i has the same problem. He claims the noise comes from the fact that the genuine pads create so much dust, and the buildup creates a squeak. Not sure if I buy that. Please let me know what the dealer tells you.

 

did u try changing the break sensors also?

 

Is your car under warranty? Are the brakes the original equipment pads and rotors? A dealer will charge you to diagnose and fix another person's work!

Some pad materials are noisy - some use specific anti-squeal backings and springs to dampen out the vibration that cause the noises you hear as a squeal. The sliding / moving parts are [or should be] properly lubricated with high-temp grease that helps reduce the vibrations etc.

The noise can be annoying but in most cases it isn't 'dangerous' or won't affect brake performance.

 

i had a similar problem on my cpo 530i. I brought it to the dealer and they replaced my pads.... twice! i didn't pay a cent. I love they're all inclusive maintenance program!!

 

Had the same issue on mine. I will wait to see what the dealer has to say.

 

i had the same problem......

it was the sensor on the rear brakes, pads and rotors were fine. took a couple of visits though, so ask them to check the sensors!!

 

Take it into the dealer. I went in today to change the oil and told them the brakes were squealing when coming to a stop. They changed both pads and sensors on the front and put anti-squeal grease on all four pads (it's dark/orange-brown in color so you can see it if you look closely), under warranty so free of charge. No more noisy brakes

 

My X3 brakes squeal a bit a day or so after a rain. My 550i did it when new but not lately. What I do (and did when the 550i was new) was to do several hard stops in a row. This beds in the pads a bit and can eliminate the squealing.

 

thanks guys any idea how long it takes to do this.don't feel like leaving the car.last time I went for warranty they had the car for 1 week and car came back scratched up underneath where the jack goes.anyways long story.