How to elimate break squeal on Carbotech pads Ct1648-1521 ?

steeve13m · 11-22-2016, 04:30 PM

Anyone experienced break squeal on the Carbotech pads front/back Ct1648-1521 ? Any tricks to remove the squeal when coming to a stop? Also have a rotating brake squeak when car is driving at <20mph without pressing the brakes.

I was going to try this?

https://www.amazon.com/gp/product/B0...A37KLPQG0QTZGU

mister2d · 11-23-2016, 09:15 AM

Try bedding those pads first. Costs you no money at all.

evilb · 11-23-2016, 11:18 AM

Use Meguiars "Hot Wheels" cleaner and spray everything with a thick coat. Use a brush to clean the calipers. Then repeat.

Chances are it's leftover residue from stock brakes causing the noise. It will disappear over ~1000 miles. But you need to thoroughly clean all components. No bedding necessary with 1521's.

Best,
Brad

mister2d · 11-25-2016, 11:34 AM

Quote:

Originally Posted by evilb

Use Meguiars "Hot Wheels" cleaner and spray everything with a thick coat. Use a brush to clean the calipers. Then repeat.

Chances are it's leftover residue from stock brakes causing the noise. It will disappear over ~1000 miles. But you need to thoroughly clean all components. No bedding necessary with 1521's.

Best,
Brad

Not sure what that means. They're still brake pads, and he's using steel brake rotors.

evilb · 11-25-2016, 12:00 PM

Quote:

Originally Posted by mister2d

Quote:

Originally Posted by evilb

Use Meguiars "Hot Wheels" cleaner and spray everything with a thick coat. Use a brush to clean the calipers. Then repeat.

Chances are it's leftover residue from stock brakes causing the noise. It will disappear over ~1000 miles. But you need to thoroughly clean all components. No bedding necessary with 1521's.

Best,
Brad

Not sure what that means. They're still brake pads, and he's using steel brake rotors.

Carbotech states no special procedure necessary. Call them.

mister2d · 11-25-2016, 12:20 PM

Quote:

Originally Posted by evilb

Carbotech states no special procedure necessary. Call them.

I don't need to call them. The correct info is posted on their site.
All new brake pads require a bedding process...

http://www.ctbrakes.com/faqs.asp#bedding4

Quote:

NOTE: The proper way to bed your brake pads and brake discs (rotors) is to bed them on the racetrack, NOT on the street (excluding the Bobcat 1521 compound).

Perhaps you believe the 1521 doesn't require bedding because of this statement. However, the 1521 is documented to not use on the racetrack. That's why it says this.

At any rate Carbontech's website states bedding procedures in their FAQ.
http://www.ctbrakes.com/faqs.asp#bedding1

And not to discount your suggestion completely, I don't think any spray can removed baked uneven pad material from a rotor surface without also melting away your pads in the process.

evilb · 11-25-2016, 05:40 PM

I replaced my stock pads at 33k miles, kept the stock rotors, and what I outlined worked for me. Of course YMMV, but I'm not going to get into a pissing match with you about it. Are you even using 1521's?

evilb · 11-25-2016, 05:44 PM

Also note that the link you referenced explicitly EXCLUDES the 1521. Why I said call them directly to verify. I had this exact conversation and they told me "No bedding necessary. Squealing and dust will reduce over ~1k miles or a few months as the stock pad material is removed from your rotors."

If he has never thoroughly cleaned components, it will help.

mister2d · 11-27-2016, 07:22 PM

Right. That's what I quoted. It excludes 1521s because their procedures are for track use. Meaning, they don't want to be on the hook legally for telling someone to do this on the street.

Not trying to piss. But wrong info is wrong info.

It worked for you because you apparently drove 1000 miles after installation. That effectively gives you the same effect of bedding.

steeve13m · 04-11-2017, 12:15 PM

I give up on the carbontech way too noisy and not low dust (just lower than oem)

anyone try these?

http://www.powerstop.com/product/pow...3&mk=BMW&mo=M5

Fast400 · 04-11-2017, 01:02 PM

Quote:

Originally Posted by steeve13m

I give up on the carbontech way too noisy and not low dust (just lower than oem)

anyone try these?

http://www.powerstop.com/product/pow...3&mk=BMW&mo=M5

I'm using the Z26 Powerstop! Can't beat em for the price. I'm braking from 120mph down to 60mph alot over here in Germany

steeve13m · 04-11-2017, 01:04 PM

Quote:

Originally Posted by Fast400

I'm using the Z26 Powerstop! Can't beat em for the price. I'm braking from 120mph down to 60mph alot over here in Germany

Hows the brake dust on Z26 after u pass your finger on the wheel?

I just purchased the Z17's full ceramic lowest brake dust apparently...keep u posted

Snake doctor · 04-11-2017, 06:06 PM

OEM Pads

steeve13m · 04-11-2017, 09:17 PM

Quote:

Originally Posted by Snake doctor

OEM Pads

oem pads= obscene amount of black brake dust

josec70 · 04-11-2017, 10:02 PM

Quote:

Originally Posted by steeve13m

Hows the brake dust on Z26 after u pass your finger on the wheel?

I just purchased the Z17's full ceramic lowest brake dust apparently...keep u posted

Do you know if there's a difference between pads on a 13' and LCI's; went on the website and found PN for 13 but I was unable to find for 15'.

ur20v · 04-12-2017, 02:33 AM

Did you check that ll the pistons are free and the hand brake mech was released and reset properly? Its common to have a stick piston and the main cause off vibrations and noise.

STR8-6IX · 04-20-2017, 10:08 PM

Quote:

Originally Posted by steeve13m

Anyone experienced break squeal on the Carbotech pads front/back Ct1648-1521 ? Any tricks to remove the squeal when coming to a stop? Also have a rotating brake squeak when car is driving at <20mph without pressing the brakes.

I was going to try this?

https://www.amazon.com/gp/product/B0...A37KLPQG0QTZGU

Take apart the brakes and give everything a good clean

11-22-2016, 04:30 PM	#1
steeve13m Second Lieutenant 61 Rep 294 Posts Drives: F10 M5 Join Date: Jun 2016 Location: USA iTrader: (0)	How to elimate break squeal on Carbotech pads Ct1648-1521 ? Anyone experienced break squeal on the Carbotech pads front/back Ct1648-1521 ? Any tricks to remove the squeal when coming to a stop? Also have a rotating brake squeak when car is driving at <20mph without pressing the brakes. I was going to try this? https://www.amazon.com/gp/product/B0...A37KLPQG0QTZGU __________________ 2019 F90 M5 Competition - Marina bay Blue Pearl - Executive and Bowers & Wilkins package Gone:2013 F10 M5-DCT-Montecarlo Pearl Blue-BBMR 800 Stage 1 system 700whp+(93oct) 2004 Lamborghini Gallardo-Manual-Giallo Midas Pearl Yellow-Modified 2018 Range Rover Velar S-White
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11-23-2016, 09:15 AM	#2
mister2d Captain 156 Rep 598 Posts Drives: F10 M5 Join Date: Dec 2013 Location: USA iTrader: (1)	Try bedding those pads first. Costs you no money at all.
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11-23-2016, 11:18 AM	#3
evilb Lieutenant 167 Rep 501 Posts Drives: McLaren MSO 570S, 18 Raptor Join Date: Oct 2014 Location: Raleigh-Durham, NC iTrader: (2)	Use Meguiars "Hot Wheels" cleaner and spray everything with a thick coat. Use a brush to clean the calipers. Then repeat. Chances are it's leftover residue from stock brakes causing the noise. It will disappear over ~1000 miles. But you need to thoroughly clean all components. No bedding necessary with 1521's. Best, Brad __________________ 2016 McLaren MSO 570S \| 2018 Ford Raptor \| @alpha7even
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11-25-2016, 05:40 PM	#7
evilb Lieutenant 167 Rep 501 Posts Drives: McLaren MSO 570S, 18 Raptor Join Date: Oct 2014 Location: Raleigh-Durham, NC iTrader: (2)	I replaced my stock pads at 33k miles, kept the stock rotors, and what I outlined worked for me. Of course YMMV, but I'm not going to get into a pissing match with you about it. Are you even using 1521's? __________________ 2016 McLaren MSO 570S \| 2018 Ford Raptor \| @alpha7even
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11-25-2016, 05:44 PM	#8
evilb Lieutenant 167 Rep 501 Posts Drives: McLaren MSO 570S, 18 Raptor Join Date: Oct 2014 Location: Raleigh-Durham, NC iTrader: (2)	Also note that the link you referenced explicitly EXCLUDES the 1521. Why I said call them directly to verify. I had this exact conversation and they told me "No bedding necessary. Squealing and dust will reduce over ~1k miles or a few months as the stock pad material is removed from your rotors." If he has never thoroughly cleaned components, it will help. __________________ 2016 McLaren MSO 570S \| 2018 Ford Raptor \| @alpha7even
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11-27-2016, 07:22 PM	#9
mister2d Captain 156 Rep 598 Posts Drives: F10 M5 Join Date: Dec 2013 Location: USA iTrader: (1)	Right. That's what I quoted. It excludes 1521s because their procedures are for track use. Meaning, they don't want to be on the hook legally for telling someone to do this on the street. Not trying to piss. But wrong info is wrong info. It worked for you because you apparently drove 1000 miles after installation. That effectively gives you the same effect of bedding.
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04-11-2017, 12:15 PM	#10
steeve13m Second Lieutenant 61 Rep 294 Posts Drives: F10 M5 Join Date: Jun 2016 Location: USA iTrader: (0)	I give up on the carbontech way too noisy and not low dust (just lower than oem) anyone try these? http://www.powerstop.com/product/pow...3&mk=BMW&mo=M5 __________________ 2019 F90 M5 Competition - Marina bay Blue Pearl - Executive and Bowers & Wilkins package Gone:2013 F10 M5-DCT-Montecarlo Pearl Blue-BBMR 800 Stage 1 system 700whp+(93oct) 2004 Lamborghini Gallardo-Manual-Giallo Midas Pearl Yellow-Modified 2018 Range Rover Velar S-White Last edited by steeve13m; 04-11-2017 at 12:23 PM..
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04-11-2017, 06:06 PM	#13
Snake doctor New Member 9 Rep 25 Posts Drives: 2015 M5 MCB Join Date: Oct 2012 Location: UK iTrader: (0)	OEM Pads Attached Images
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04-12-2017, 02:33 AM	#16
ur20v Captain 184 Rep 788 Posts Drives: F10 M5 Join Date: Apr 2016 Location: WA Australia iTrader: (0)	Did you check that ll the pistons are free and the hand brake mech was released and reset properly? Its common to have a stick piston and the main cause off vibrations and noise.
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