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brake noises, loud groaning/creaking during low-speed braking, dealer says it is "normal"

mklybormklybor marylandPosts: 1
edited March 22 in Mazda
I am having this problem with a 2017 3 GT hatchback. It has been to the dealer 4 times to fix the problem. It makes a groaning/creaking noise during low-speed braking (parking). Also when coming to a full stop at normal speeds. (stops, seems to make the sound when the car "rebounds" from a normal-effort full-stop) I thought at first it was suspension related, since it did sound like a suspension creak. Dealer tells me it is a brake noise. And it is "normal" for this car to make that noise. It started in a couple of months ago (23k miles now). I have never driven any car, owned, rental or otherwise that made such a noise. So I can't take this as "normal". It is really loud. Not a scraping sound (like rusty disks or worn pads). Also, if I am stopped in a parking lot, and I release the brakes really slowly, I can get this continuous noise, the vehicle not moving, this groan/creak/whine kind of noise, can get it to go on for 30 seconds with no motion of the vehicle (in gear). One of the dealer mechanics said it could be due to the "city braking" system/option that warns/applies brakes at low speed, pre-loads the calipers. But it shouldn't whine about it.

Today, to "prove" to me that this is "normal", they put me into a 6 with 2k miles on it. And, yes, I could get it to make that noise also. Again, if this is what Mazda thinks is "normal" brake behavior, it doesn't say much for the brand. I would not expect this kind of issue with a vehicle that is less than 2 years old. None of my ancient Hondas ever made such a noise (first experience with Mazda). As far as I can tell, they have taken no action to attempt to remedy the situation, they just "diagnose" it and do nothing except tell me that it is a noise to be expected.

Any ideas of the real cause of this issue? thanks!

Comments

  • thecardoc3thecardoc3 Posts: 4,989
    A slip/stick groan that can be heard at very low speeds is indeed a normal sound.
  • Mr_ShiftrightMr_Shiftright Sonoma, CaliforniaPosts: 64,490
    If other new/newish cars you tested made the same noise, then I guess that's the "new normal" for that particular brand. Brakes do work off of friction and so there is bound to be some noise--exactly how much might depend on the particular design of a particular car.
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