I have a 2019 signature and I am very disapointed with the brake system on that car. Noticed they they started squealing at drive through around 12K...they told me it's because high quality pad. Well ok, it went away with the time. At my first clean up at 24k I mentionned cling cling sound when I get at home and set to reverse then release brake to drive backward to park. Brake pad loose in the assembly so they changed some shim. About 3 or 4 week later, it started to cling cling again and it became very loud until my next oil change and could be recreated each time I drive reverse, then forward, then reverse. They were about to change the pad but they got info from mazda technical deparment they need to glue or put some silicon on the pad. It fixed the noise quite well and no problem until the next brake cleanup (I do it after each winter and was at 48k anyway. They told me pad are loose they need to change the shim. Start to argue with them it's getting ridiculous and they investigate and got a procedure from the mazda technical deparment saying they need to hammer punch both side of the pad so it doesnt *excessively play in the support* to use the words they used. The mechanical told me every CX-5 with turbo tend to have that issue. No brake pad replacement or wathever it call that hold (guide) the pad replacement would fix that. Called Mazda Canada and told them that putting a band aid on a design problem doesn't seem to be a solution. So I would not be suprised to have uneven wearing on my pad anytime soon since after all, it's not factory made, but rather depend on the guy that punched the pad. I'm considering checking on legal procedure and/or fill a complain to transportation at this point. That even brand new brake pads need to be modify to not move excessively in the support doesn't seem to be an adequate anwser for me...
Actually the TSB
yrwei52 shared with us explain exactly the problem I have and the procedure they made at summer 2020 when I had about 32K. For the same issue 6 or 8 month after, they got a new procedure to hammer the side of the pad....doesn't smell good at all.