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clicking or grating sound in rear wheel at low speed
I had the same problem with my 2014 Mazda CX5, but it was the front rotors that warped at 25k miles (when i started noticing it). This time in my 2016 CX5 I hear a clicking or grating sound in the right rear wheel. It appears that the rotor is warped and I can hear it hitting the brake pad on each revolution of the wheel. Most noticeable at low speeds. Gets masked at higher speeds. This is absolutely terrible that I'll have to spend hundreds of dollars to replace the rear rotors and pads on a car that is less than 10 months! I've never had to replace rotors on any car I've owned before it reached 100k miles. I can't believe Mazda quality has sunk this low to put cheap rotors on such a nice car. I'm guessing they put very thin ones on to save weight and increase gas mileage by a fraction, but it leads to premature failure. I'm very upset with Mazda since this will not be covered under my original 3 year 36k "bumper to bumper except for brakes" warranty.
Update from Nov 29, 2016: Today on the way home the sound increased enough to make me think it's coming from the front instead of the back as I originally thought. This would make it the same problem I faced with my 2014 model. I will have to pull the front right wheel to see if I can determine, but I'm assuming it's the same situation as my last car - premature brake/rotor failure.
Update from Dec 6, 2016: Please remove this complaint. Turns out it was loose lug nuts on front wheel after mechanic rotated the tires 2k miles ago!
Snow Shoe, PA, US