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Discussion Starter #1
Hey guys,

I just had my OEM rotors and pads replaced on my 2014 6 GT with Centric parts (ordered from rockauto.com). I now notice a rattle coming from the front left when driving over certain cracks and bumps in the road. I took my car back to the shop that performed the service but they didn't find anything wrong. I even had my neighbor take a look (ex-Toyota mechanic) and he couldn't find a problem either. I've been reading about other cars with a similar issue and it was anti-rattle springs, but based on the brake assembly diagrams I've seen, those don't exist on this car. I'm not sure if they retained the OEM clips or used those included with the Posi Quiet pads. Is there anyone here that can help me? I greatly appreciate any help. Thanks.
 

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Anti rattle springs usually help prevent noises when applying the brakes...not rattles from the front end. It's possible they have left something off the brakes that is causing the noise, but it doesnt sound like any brake related noise I've ever heard...but, hey anything is possible.

Can you take your mechanic on a test drive and show him where and when the noise occurs? That could help him pinpoint the source of the noise.
 

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It's probably the cover behind the rotor. The centric rotors are a tad thicker and I had the issue that they would hit that cover lightly when driving over rough terrain or pot holes .. sounded like a loud rattle.

I just bend the cover and pushed it a bit towards the inside. Rattle gone. It's flexible sheet metal.
 

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Discussion Starter #4
It's probably the cover behind the rotor. The centric rotors are a tad thicker and I had the issue that they would hit that cover lightly when driving over rough terrain or pot holes .. sounded like a loud rattle.

I just bend the cover and pushed it a bit towards the inside. Rattle gone. It's flexible sheet metal.
That's what my neighbor thought and pushed the shield back (towards the engine bay), but the rattle/clink noise is still present. I'll take another look and check the clearance between it and the rotor. Thanks for your response.
 

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Discussion Starter #5
Anti rattle springs usually help prevent noises when applying the brakes...not rattles from the front end. It's possible they have left something off the brakes that is causing the noise, but it doesnt sound like any brake related noise I've ever heard...but, hey anything is possible.

Can you take your mechanic on a test drive and show him where and when the noise occurs? That could help him pinpoint the source of the noise.
The noise isn't heard when applying the brakes and driving over a crack where it consistently occurs. It seems that the shims and clips are all in place. I'll have to take it in to get it checked out if I can't figure it out myself. It has been pretty annoying. Thanks for your response.
 

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On another vehicle I own, I've had a clack sound that I suspect is my brake pads moving around on their pins. It's a work truck so I don't really feel the need to fix it, but I suspect that might be what's going on with yours. The pads might be "rattling" a bit when you go over a significant bump.
 

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On another vehicle I own, I've had a clack sound that I suspect is my brake pads moving around on their pins. It's a work truck so I don't really feel the need to fix it, but I suspect that might be what's going on with yours. The pads might be "rattling" a bit when you go over a significant bump.
I only hear it on certain cracks, potholes, and railroad tracks, but rarely over bumps in the road. It's very strange.
 

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I have this issue when I ever replace the brake pads or the rotors, but it disappears with time. One possible cause of this issue and once I managed to eliminate it by greasing the calibers' pins, if you haven't done that, give it a try and see how it goes.
 

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Did you find the cause of this? I changed the rotors on my 2014 Sport last night and I now have a rattle on one side when driving over bumps and even cracks in the road.
 

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Just want to what I found regarding rattles after front brakes have been replaced. I have one of the first GJ series Mazda 6 Sport build date 11/2012. Purchased new in Feb 2013. After about 12 months my front brakes started to shudder. It was mild, and only when high speed braking. Dealer had the Rotors machined all seemed fine. Then shudder returned again, Rotors machined again. On the 3rd time I asked to have the rotors replaced under warranty which was denied. So machined again. Shudder returned and I learned to live with it for the next three years. At 131,000 km was advised to replace front and rear pads. Had it done by a brake specialist. Yep, rotors machined again. 3 months later, after having issues with the work done, the shudder returning plus added squealing brakes and also a Rattle from the Drivers front area I just could not find. Took it to a suspension place. They could not find anything wrong. But they did mention that there is a rattle. I had had enough. So I purchased new front rotors and Genuine Mazda Pads. Fitted them. Shudder and squeal gone. Happy days. This is when I realized that my front pads did not have the Anti rattle clips fitted to the pads. There were 4 of them sitting in the Mazda Brake Pad box. All this time. This rattle sounded so much like the top bearing plate of the strut starting to get noisy. But it only rattled on some sharp bumps in the road. Not all of them. Just some. It would not rattle when braking though. I was even contemplating removing the strut and replacing the bearing at one stage.
Look sorry for a long Post. I had many months of trying to work out what this damn rattle was. The answer 4 Anti Rattle clips. One fitted top side of each Pad.
Hope this helps the next Mazda owner with a weird rattle.
 

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Look sorry for a long Post. I had many months of trying to work out what this damn rattle was. The answer 4 Anti Rattle clips. One fitted top side of each Pad.
Hope this helps the next Mazda owner with a weird rattle.
I don't have any rattling sounds since I replaced the brake pads but I'm taking note of this should I replace the pads of my son's car.
 

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Just an FYI Soul Red,

Some may call those anti rattle clips, but those are your front mechanical wear indicator clips. They make a squeak noise when your pads are worn down. They are required to go on the top end of all four front brake pads (for some years and models). Without them, there is not enough tension and they move around and rattle. Shocked that a dealer and a suspension shop did not catch this!?! ....but glad you did.
 
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