My brakes are fairly new, about 1 year old and about 80% left
I had my struts replaced for my Mazda 3. When I drove after that it made a lot of grinding noise which was audible at low speeds. I went back to the mechanic and he blamed the rotors. He machined those which reduced the noise for a day or two.
Now there is again a lot of noise and the mechanic wants me to change the rotors and pads with no guarantee of fixing the issue.
Could someone suggest what could be the issue?