Aftermarket pads installed, unsettling loud clunking/clicking from reverse to drive

NYG · 06-03-2019, 05:08 PM

Car is brand new, no other parts are worn out. I installed PFC11s and replaced brake fluid with Motul 600. The brakes work great, but I hear real nasty sounds coming from my caliper every time I reverse and initially when I go back into drive. Once I'm in drive, it goes away. What could be causing this? Should I be concerned? How can I fix this without going back to the stock pads?

coolmody · 06-03-2019, 06:09 PM

Normal with most track pads. This happened with my stock calipers and RS29s and still happens on my Essex/AP kit with Ferrodo pads. Nothing to worry about.

NYG · 06-03-2019, 10:30 PM

Quote:

Originally Posted by coolmody

Normal with most track pads. This happened with my stock calipers and RS29s and still happens on my Essex/AP kit with Ferrodo pads. Nothing to worry about.

Thanks bud. I've researched this a little bit so I don't mean to dig up an old question but there seems to be various answers. I'm just mostly concerned with this leading to brake failure on the track.

F3IGHTY · 06-03-2019, 11:52 PM

It’s normal, pads expand when hot too so a little room is good

M3SQRD · 06-04-2019, 04:18 AM

Normal. Doesn’t create a brake safety issue. It’s caused by the pad backing plate shifting around in the caliper and contacting the caliper pad guides (especially when changing braking directions from forward to reverse and vice versa).

NYG · 06-15-2019, 12:06 PM

Just in case anyone searches for this thread in the future, here's an update:

The pads worked extremely well on the track, no issues at all.

I put the stock pads back in for daily driving and the noise completely went away.

Will put the PFC11s back in before the next track day with confidence that the noise is not an issue.

06-03-2019, 05:08 PM	#1
NYG Brigadier General 10968 Rep 3,759 Posts Drives: Audi R8 Join Date: Feb 2017 Location: Brooklyn, NY iTrader: (0)	Aftermarket pads installed, unsettling loud clunking/clicking from reverse to drive Car is brand new, no other parts are worn out. I installed PFC11s and replaced brake fluid with Motul 600. The brakes work great, but I hear real nasty sounds coming from my caliper every time I reverse and initially when I go back into drive. Once I'm in drive, it goes away. What could be causing this? Should I be concerned? How can I fix this without going back to the stock pads?
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06-03-2019, 06:09 PM	#2
coolmody First Lieutenant 365 Rep 362 Posts Drives: AW/SO F80 M3 Join Date: Mar 2014 Location: Calgary, Canada iTrader: (0)	Normal with most track pads. This happened with my stock calipers and RS29s and still happens on my Essex/AP kit with Ferrodo pads. Nothing to worry about.
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06-03-2019, 11:52 PM	#4
F3IGHTY Lieutenant 211 Rep 400 Posts Drives: M3 Join Date: Aug 2016 Location: Bay Area iTrader: (3)	It’s normal, pads expand when hot too so a little room is good
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06-04-2019, 04:18 AM	#5
M3SQRD Major General 2440 Rep 5,905 Posts Drives: E92 M3,G20 330ix,F22 240iX,F82 Join Date: Jun 2009 Location: Mid-Atlantic iTrader: (11)	Normal. Doesn’t create a brake safety issue. It’s caused by the pad backing plate shifting around in the caliper and contacting the caliper pad guides (especially when changing braking directions from forward to reverse and vice versa).
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06-15-2019, 12:06 PM	#6
NYG Brigadier General 10968 Rep 3,759 Posts Drives: Audi R8 Join Date: Feb 2017 Location: Brooklyn, NY iTrader: (0)	Just in case anyone searches for this thread in the future, here's an update: The pads worked extremely well on the track, no issues at all. I put the stock pads back in for daily driving and the noise completely went away. Will put the PFC11s back in before the next track day with confidence that the noise is not an issue.
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