Noise In Rear

DerekSelmanRacing · 02-25-2013, 05:10 PM

No, it's not the diff clutch noises. It's only noticeable at very low speeds; a fairly loud clanking type noise which reminds me of a loose wheel lug nut rolling around inside a hub cap. My WAG is something inside the parking brake drum has broken/come loose and is rattling around at low speeds. Anybody had a similar issue?

HP Autosport · 02-25-2013, 09:48 PM

Quote:

Originally Posted by DerekSelmanRacing

No, it's not the diff clutch noises. It's only noticeable at very low speeds; a fairly loud clanking type noise which reminds me of a loose wheel lug nut rolling around inside a hub cap. My WAG is something inside the parking brake drum has broken/come loose and is rattling around at low speeds. Anybody had a similar issue?

Does it happen while turning or going in a straight line? If it were something in the parking brake, pull it while driving to see if the noise changes. If it doesn't, it's NOT likely in the parking brake.

spdy330 · 02-26-2013, 12:10 AM

Sub-frame bolt?

M3CRUZN · 03-02-2013, 06:26 PM

Quote:

Originally Posted by HP Autowerks

Does it happen while turning or going in a straight line? If it were something in the parking brake, pull it while driving to see if the noise changes. If it doesn't, it's NOT likely in the parking brake.

what if the noise happens when your turning slightly or sometimes on full turn,
sounds like rubbing, but no signs of marks on the tires or wheels

HP Autosport · 03-02-2013, 11:22 PM

Quote:

Originally Posted by iRonM3n

what if the noise happens when your turning slightly or sometimes on full turn,
sounds like rubbing, but no signs of marks on the tires or wheels

Check your plastic wheel liners for rubbing marks.

Are you running wider than OE tires?

llis · 03-03-2013, 08:38 PM

From the description this seems to be the infamous cowbell, which usually is a rock caught in between the brake disc and the backing plate. (Search "cowbell" and you'll find lots of threads on m3post.) Tap on the plate and see if it has the same note. Sometimes some hard braking can free it, or you can try with your fingers. If it's not the same note, well, just ignore my comment.

advans · 03-03-2013, 10:26 PM

Quote:

Originally Posted by DerekSelmanRacing

No, it's not the diff clutch noises. It's only noticeable at very low speeds; a fairly loud clanking type noise which reminds me of a loose wheel lug nut rolling around inside a hub cap. My WAG is something inside the parking brake drum has broken/come loose and is rattling around at low speeds. Anybody had a similar issue?

check my thread below with videos...same sound?

http://www.m3post.com/forums/showthread.php?t=674328

02-25-2013, 05:10 PM	#1
DerekSelmanRacing Second Lieutenant 4 Rep 222 Posts Drives: 05 Z4 3.0 SMG, 01 530 Join Date: Jul 2008 Location: Lake Havasu City, AZ. iTrader: (0)	Noise In Rear No, it's not the diff clutch noises. It's only noticeable at very low speeds; a fairly loud clanking type noise which reminds me of a loose wheel lug nut rolling around inside a hub cap. My WAG is something inside the parking brake drum has broken/come loose and is rattling around at low speeds. Anybody had a similar issue?
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02-26-2013, 12:10 AM	#3
spdy330 Major General 137 Rep 6,154 Posts Drives: 05 Tundra, 08 Odyssey Join Date: Dec 2009 Location: Chino Hills, CA iTrader: (163)	Sub-frame bolt? __________________ If you will be purchasing ANY AT&T services online or in store could you mention that you were referred by me? My Employee Referral ID is eo4489. This would be a great help and it costs you nothing, thank you!
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03-03-2013, 08:38 PM	#6
llis octane chick 40 Rep 1,188 Posts Drives: ex-M Join Date: Oct 2010 Location: Colorado iTrader: (1) Garage List 2013 BMW M3 ZCP [5.00] 2003 BMW M5 [0.00]	From the description this seems to be the infamous cowbell, which usually is a rock caught in between the brake disc and the backing plate. (Search "cowbell" and you'll find lots of threads on m3post.) Tap on the plate and see if it has the same note. Sometimes some hard braking can free it, or you can try with your fingers. If it's not the same note, well, just ignore my comment.
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