Rear pads not making full contact

atruelunatic · 03-08-2020, 06:07 PM

I’m currently at the track and only now noticed that one of my rear pads isn’t making full contact on the rear rotor.

View post on imgur.com

I replaced the pads to HPC08 and also changed the rear rotors at the same time.

This is only on the rear left rotor. I can’t see the inside side of the rotor currently.

EDIT: Adding additional information. That is from ~20 mi city driving, 100 mi hwy driving (minimal brakes), and 3x 20min sessions on the track. Hoping to be able to get the car jacked up so I can take a look at the pads.

nrubenstein · 03-11-2020, 12:19 PM

Maybe the pad binding on something. If you have the anti-rattle clip installed, I'd remove it also.

atruelunatic · 03-11-2020, 05:40 PM

Quote:

Originally Posted by nrubenstein

Maybe the pad binding on something. If you have the anti-rattle clip installed, I'd remove it also.

The anti rattle clip being the metal spring/clip that you have to pry off on the outward facing side of the caliper? Are there any drawbacks other than the pads now being able to rattle?

atruelunatic · 03-12-2020, 07:37 PM

Solved. Rattling clip wasn’t seated correctly. Hopefully the pads wear back evenly

OmairK · 04-12-2020, 01:33 AM

It probably won't and will damage the sliding pins. I'd probably buy new pads and a new rattling clip for good measure.

03-08-2020, 06:07 PM	#1
atruelunatic Lieutenant 96 Rep 473 Posts Drives: n/a Join Date: Jun 2011 Location: Seattle, WA iTrader: (1)	Rear pads not making full contact I’m currently at the track and only now noticed that one of my rear pads isn’t making full contact on the rear rotor. View post on imgur.com I replaced the pads to HPC08 and also changed the rear rotors at the same time. This is only on the rear left rotor. I can’t see the inside side of the rotor currently. EDIT: Adding additional information. That is from ~20 mi city driving, 100 mi hwy driving (minimal brakes), and 3x 20min sessions on the track. Hoping to be able to get the car jacked up so I can take a look at the pads. __________________ 2011 e92 JzB 6MT Akrapovic Evolution, ESS Tune, KW V3 Last edited by atruelunatic; 03-10-2020 at 02:02 PM..
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03-11-2020, 12:19 PM	#2
nrubenstein Captain 567 Rep 801 Posts Drives: E30 M3/E36 M3/E46 M3/E90 M3 Join Date: Dec 2016 Location: Washington, DC iTrader: (2)	Maybe the pad binding on something. If you have the anti-rattle clip installed, I'd remove it also. __________________ 2011.75 E90 M3 \| 2006 GMC Sierra LBZ \| 2004 X5 3.0i 6MT \| 1995 M3 S50B32 \| 1990 325is \| 1989 M3 S54B32 Hers: 1996 911 Turbo \| 1989 325iX
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03-12-2020, 07:37 PM	#4
atruelunatic Lieutenant 96 Rep 473 Posts Drives: n/a Join Date: Jun 2011 Location: Seattle, WA iTrader: (1)	Solved. Rattling clip wasn’t seated correctly. Hopefully the pads wear back evenly
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04-12-2020, 01:33 AM	#5
OmairK Engineer 51 Rep 171 Posts Drives: 1995 M3 - 2011 E90 M3 6M ZCP Join Date: Apr 2019 Location: NY iTrader: (0)	It probably won't and will damage the sliding pins. I'd probably buy new pads and a new rattling clip for good measure.
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