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Suspension & Braking Forum by BimmerWorld
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Old 06-14-2016, 06:48 PM   #1
Epidemike
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Brake squeal - Hawk Pads

I did a complete brake refresh on my E46 330i back in Jan. Now I have noticed that since its been warmer I have significant squeal at low MPH (1-25MPH).

I got the Hawk HPS 5.0 Pads, https://www.ecstuning.com/ES2772038/ , and made sure to lube on the glide rails. Not a crazy amount.

I used Zimmerman rotors, https://www.ecstuning.com/ES10490/, and I dont see/feel any warping.

Besides that I ordered the ECS bake kit and installed new bolts and guides as well as did a flush of brake fluid.

Like I said, the brakes were fine until it got warmer. Any ideas?

Last edited by Epidemike; 06-15-2016 at 03:30 PM.
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Old 07-12-2016, 04:22 PM   #2
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Old 07-12-2016, 04:34 PM   #3
Rob43
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Some brake compounds are noisy, plain n simple. So there might not be anything you can do about it.

Did you lather up the backside of the brake pads with some type of gooey "Bake Quiet" ?



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Old 07-27-2016, 03:57 PM   #4
Epidemike
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Some brake compounds are noisy, plain n simple. So there might not be anything you can do about it.

Did you lather up the backside of the brake pads with some type of gooey "Bake Quiet" ?



Rob43
I used the packets that came with the pads. I debated on using some CRC brake quiet but I figured in this case to go with what was packaged with the pads.

From Hawk "Hawk High Performance Street 5.0 brake pads are formulated to produce and release extremely low levels of dust in normal street driving conditions while also being very quiet."

Maybe I reach out to them or ECS?
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Old 08-13-2016, 08:52 AM   #5
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I've run the HP+ on my Z06 for HPDE days and they are very loud once I get a couple of trips into work after a track day. The compound is very hard and once you stop putting heat into it it wipes all the bedded compound off and then you start sounding like a city bus The HPS 5.0 are pretty close in makeup, however if they have been quiet until recently I'd wager that if you performed a re-bedding process they would be quite again for a period of time.
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Old 08-15-2016, 02:10 PM   #6
Epidemike
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I've run the HP+ on my Z06 for HPDE days and they are very loud once I get a couple of trips into work after a track day. The compound is very hard and once you stop putting heat into it it wipes all the bedded compound off and then you start sounding like a city bus The HPS 5.0 are pretty close in makeup, however if they have been quiet until recently I'd wager that if you performed a re-bedding process they would be quite again for a period of time.
Good point about re-bedding, I didnt think of that.

I checked the brake fluid the other and the level was fine.

They're great pads, especially I like the combo with the Zimmerman rotors. It's just that they're noisy.
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Old 08-25-2016, 09:46 AM   #7
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HP+ pads are stated to be a louder and more aggressive pad by Hawk, the HPS pads are supposed to be quiet. I had HPS pads with Zimmerman rotors on a different vehicle and they did not produce noticeable noise.

Have you tried re-bedding? What were the results?
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