M3 problem: scraping and 'ka-chunk' sounds - BMW Forum - BimmerWerkz.com
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#1 (permalink) Old 08-09-2003, 03:53 PM
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My brother is having a problem with his E30 M3 . . .
Hopefully you guys can help, here it is, in his own words:


I was driving along and then there was this scraping/grinding noise coming from the right rear wheel, then there was a wicked "KA-CHUNK" and a shudder. i could barely get it home from a few blocks away because it seemed as if it was getting worse.
Before i even had this problem, i noticed the when i park on a hill, even a decently sloped one, and had the e-brake on, when i got back in the car started it up, and took off the e-brake, it wouldn't roll, like the brakes were still holding. i had to put it in gear and drive a little to brake the "barrier." I don't know if that is a "feature" of the car or if it's a problem, and could it relate to this new one?

Thanks for your help if you can.



Austin
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#2 (permalink) Old 08-09-2003, 04:07 PM
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moving to M3 section.


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#3 (permalink) Old 08-09-2003, 05:29 PM
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sounds like maybe your rear shock mount is blown. one of mine was loose one time and it made that awful sound. but i dont know how that would relate to the ebrake. i would deffinately check the shock mounts though, cause they are known to go
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#4 (permalink) Old 08-09-2003, 05:45 PM
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To add another thought onto MrM3's - could possibly be brake's are seizing. Do the e30's have drums in the rear or disks? If it's drums it may be (following the described problem with the e-brake) that the shoes are sticking to the drum on the right hand side, and by now may have worn on that side to the point where it's making that sound and those problems.

Suggestion - remove rear tire and remove brake drum. Inspect both the shoes and the drum. Check the e-brake wire and adjustments. The cause may present itself once you take the tire off.

Good luck.

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#5 (permalink) Old 08-09-2003, 06:06 PM
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sounds like at first you blew your guibo disk but the ebrake thing really made me think that you have an ebrake issue, the drum sounds like its gone or stuck ON.

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#6 (permalink) Old 08-09-2003, 07:13 PM
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Quote:
Originally posted by GreenDragon@Aug 9 2003, 06:25 PM
To add another thought onto MrM3's - could possibly be brake's are seizing. Do the e30's have drums in the rear or disks? If it's drums it may be (following the described problem with the e-brake) that the shoes are sticking to the drum on the right hand side, and by now may have worn on that side to the point where it's making that sound and those problems.

Suggestion - remove rear tire and remove brake drum. Inspect both the shoes and the drum. Check the e-brake wire and adjustments. The cause may present itself once you take the tire off.

Good luck.
the e30 M3 deffinately has 4 wheel discs, as do all other e30's except for 84-85 318's.

my car kinda has the same ebrake problem but it doesnt happen that often, so furious could be right cause my guibo+center support bearing could also use replacing
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#7 (permalink) Old 08-09-2003, 10:50 PM
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to sort of expand on the drum/disc issue, the brake is indeed a disc, but at least on e36s, the hat portion of the disc functions as a drum for the e-brake, maybe it's the same for e30? i agree with what was said about removing rear tire & rotor.

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#8 (permalink) Old 08-13-2003, 07:40 PM
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How bout maybe you got underbody panel broken or cracked???

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#9 (permalink) Old 09-15-2003, 12:21 AM
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OK I have an E36 325i with small drum brakes integrated into the rear rotors. After messing around with the parking brake because it would not engage properly (it still doesn't), I experienced a grinding from the (ironically) rear right wheel. After removing the wheel and rotor, I found that one of the two retaining pins that hold the parking brake's pads in place had popped out (which is why the brake would not seat properly) and had lodged itself between the pad and drum. I'm pretty sure this is what you're experiencing.
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