Brake pad issue! - M3 Forum 2010 2009 BMW M3 2008 BMW M3 BMW E90 M3 E92

schnell325 · 08-27-2008, 10:58 PM

Hello all. I had a strange rock-type noise coming from the rear end, so I pulled the passenger left tire off and look what I found:

Is this something I need to worry about? Only about 5 mm of the edge of the pad seems to have be taken off....must have been some damn tough rock!

schnell325 · 08-27-2008, 11:03 PM

Oh yeah, I live ~450 mile (725km) from the nearest dealer

schnell325 · 08-30-2008, 01:58 PM

Anyone with thoughts?

skierman64 · 08-30-2008, 02:02 PM

I'm not sure of your level of mechanical prowess, however, I would pull the caliper off and look at the surface of the brake pads in order to get a full assessment of the damage. I would also request your local dealer to ship you a new set of pad for that wheel.

Does it look like the rotor or hub are damaged?

schnell325 · 08-30-2008, 02:44 PM

Thanks for the reply. I'll be pulling the caliper off this week to check for any damage to the pad.

The rotor and hub look good, but I'll have my mech give me a proper opinion.

swamp2 · 08-30-2008, 04:07 PM

Probably completely normal. Pads are often chamfered at their edges from the factory. Chamfers reduce brake noise by reducing the pads tendency to chatter with a sharp 90 degree leading edge.

schnell325 · 08-30-2008, 04:21 PM

Best if I pull the other side too, just to see what it looks like.

Gearhead999s · 08-30-2008, 05:45 PM

I also agree on the chamfer so I think what you are seeing is normal.

808MGuy · 08-30-2008, 09:19 PM

I couldn't tell what was wrong from the picture but if it is the chamfer at the edge you're talking about then yes, it's normal. I've had a number of different pads that are shaped like that.

schnell325 · 08-31-2008, 01:33 AM

Excellent! I was talking about the chaffing on the edge....I should have been more specific, my fault.

It just looked a little too much like a chunk came off of it. I'll confirm with the driver's side in a few days when I get a chance to pull the wheel off.

sayemthree · 08-31-2008, 02:18 AM

Quote:

Originally Posted by schnell325

so I pulled the passenger left tire off and look what I found:

you found a brake pad?

schnell325 · 08-31-2008, 02:58 AM

HAHA!

WKBRDR · 09-27-2008, 03:00 AM

Did you ever figure out what the problem was? i'm getting a rock-type noise too.. Just started hearing it this evening... not sure if it's related.. but to me it sounded like it was coming from behind the rotor.. more like where the axcel comes into the rotor.

Quote:

Originally Posted by schnell325

Hello all. I had a strange rock-type noise coming from the rear end, so I pulled the passenger left tire off and look what I found:

Is this something I need to worry about? Only about 5 mm of the edge of the pad seems to have be taken off....must have been some damn tough rock!

schnell325 · 09-27-2008, 04:39 AM

No, I have not. Just seems like a messed up rock placement. Pad is normal on the other side, but no issues with respect to abnormal pad wear on the side in question. Simply put, there is (was) a pad ""break down issue""" but it has gone no further.

Since I checked the wheels and the whole area of the brake pads, there are no further rocks adn the car is back to normal.

08-27-2008, 10:58 PM	#1
schnell325 Major Drives: '92 325i/4 & '08 M3 Join Date: Aug 2007 Location: BC Posts: 1,187 iTrader: (1)	Brake pad issue! Hello all. I had a strange rock-type noise coming from the rear end, so I pulled the passenger left tire off and look what I found: Is this something I need to worry about? Only about 5 mm of the edge of the pad seems to have be taken off....must have been some damn tough rock! __________________ 2008 M3 Coupe SG 6MT: AA equipped H&R springs Michelin Cup tires 2011 335xi coming soon

08-27-2008, 11:03 PM	#2
schnell325 Major Drives: '92 325i/4 & '08 M3 Join Date: Aug 2007 Location: BC Posts: 1,187 iTrader: (1)	Oh yeah, I live ~450 mile (725km) from the nearest dealer __________________ 2008 M3 Coupe SG 6MT: AA equipped H&R springs Michelin Cup tires 2011 335xi coming soon

08-30-2008, 01:58 PM	#3
schnell325 Major Drives: '92 325i/4 & '08 M3 Join Date: Aug 2007 Location: BC Posts: 1,187 iTrader: (1)	Anyone with thoughts? __________________ 2008 M3 Coupe SG 6MT: AA equipped H&R springs Michelin Cup tires 2011 335xi coming soon

08-30-2008, 02:02 PM	#4
skierman64 Colonel Drives: 2008 E92 Space Gray M3 Join Date: Dec 2006 Location: Southern New Jersey Posts: 2,630 iTrader: (0) View skierman64's Garage	I'm not sure of your level of mechanical prowess, however, I would pull the caliper off and look at the surface of the brake pads in order to get a full assessment of the damage. I would also request your local dealer to ship you a new set of pad for that wheel. Does it look like the rotor or hub are damaged? __________________ Space Grey/Black Novillo Leather, Carbon Leather Trim, Cold Weather, Premium, Technology, M-DCT, Sunshade, Park Distance Control, HD Radio, Ipod/USB, Premium Sound, Rear Fog Light Mod/// Invest Wisely...The best mod for your money?? BMWCCA high performance driver's school. The mod that lasts a lifetime and improves the performance of any car you drive

08-30-2008, 02:44 PM	#5
schnell325 Major Drives: '92 325i/4 & '08 M3 Join Date: Aug 2007 Location: BC Posts: 1,187 iTrader: (1)	Thanks for the reply. I'll be pulling the caliper off this week to check for any damage to the pad. The rotor and hub look good, but I'll have my mech give me a proper opinion. __________________ 2008 M3 Coupe SG 6MT: AA equipped H&R springs Michelin Cup tires 2011 335xi coming soon

08-30-2008, 04:07 PM	#6
swamp2 Major General Drives: E92 M3 Join Date: Sep 2006 Location: San Diego, CA USA Posts: 6,527 iTrader: (1)	Probably completely normal. Pads are often chamfered at their edges from the factory. Chamfers reduce brake noise by reducing the pads tendency to chatter with a sharp 90 degree leading edge.

08-30-2008, 04:21 PM	#7
schnell325 Major Drives: '92 325i/4 & '08 M3 Join Date: Aug 2007 Location: BC Posts: 1,187 iTrader: (1)	Best if I pull the other side too, just to see what it looks like. __________________ 2008 M3 Coupe SG 6MT: AA equipped H&R springs Michelin Cup tires 2011 335xi coming soon

08-30-2008, 05:45 PM	#8
Gearhead999s Colonel Drives: E93 335(wifes)E92 M3 Duc 999s Join Date: Apr 2007 Location: Toronto Posts: 2,538 iTrader: (0)	I also agree on the chamfer so I think what you are seeing is normal.

08-30-2008, 09:19 PM	#9
808MGuy Major Drives: 2009 E90 M3 Join Date: Jun 2008 Location: Oahu, Hawaii Posts: 1,060 iTrader: (1)	I couldn't tell what was wrong from the picture but if it is the chamfer at the edge you're talking about then yes, it's normal. I've had a number of different pads that are shaped like that.

08-31-2008, 01:33 AM	#10
schnell325 Major Drives: '92 325i/4 & '08 M3 Join Date: Aug 2007 Location: BC Posts: 1,187 iTrader: (1)	Excellent! I was talking about the chaffing on the edge....I should have been more specific, my fault. It just looked a little too much like a chunk came off of it. I'll confirm with the driver's side in a few days when I get a chance to pull the wheel off. __________________ 2008 M3 Coupe SG 6MT: AA equipped H&R springs Michelin Cup tires 2011 335xi coming soon

08-31-2008, 02:58 AM	#12
schnell325 Major Drives: '92 325i/4 & '08 M3 Join Date: Aug 2007 Location: BC Posts: 1,187 iTrader: (1)	HAHA! __________________ 2008 M3 Coupe SG 6MT: AA equipped H&R springs Michelin Cup tires 2011 335xi coming soon

09-27-2008, 04:39 AM	#14
schnell325 Major Drives: '92 325i/4 & '08 M3 Join Date: Aug 2007 Location: BC Posts: 1,187 iTrader: (1)	No, I have not. Just seems like a messed up rock placement. Pad is normal on the other side, but no issues with respect to abnormal pad wear on the side in question. Simply put, there is (was) a pad ""break down issue""" but it has gone no further. Since I checked the wheels and the whole area of the brake pads, there are no further rocks adn the car is back to normal. __________________ 2008 M3 Coupe SG 6MT: AA equipped H&R springs Michelin Cup tires 2011 335xi coming soon