Clunking noise from rear **Video Inside**

Rockyca · 01-31-2012, 06:08 PM

I am getting a clunking noise from the rear especially when transferring loads. I can reproduce it by rocking the car back and fourth with quite a bit of force. Check out the video and let me know what you guys think.

Thanks a bunch!

Car is a 2006 323i 6mt. Has around 75k miles on it.

DJ Apex · 01-31-2012, 06:09 PM

fail link! (FIXED LINK) lol

Sounds like rear end monuts, letting the rear end move up and down when load is on and off. Or drive alxes . best bet is get it in the air and get under the car while u move the wheel with your hand..

but i may be wrong ive never played with the rear end of my e90

Volasko · 02-03-2012, 10:37 PM

Well it sounds like something is loose. Get it on a lift and start swinging that rubber mallet, not too hard of course! That noise will be easily recreated which should make it pretty easy to find the loose connection.

Rockyca · 02-03-2012, 11:02 PM

There is something up within the differential itself. The input bearing is shot, already figured that out, and I am sure that there is something else causing excess play in there. I have a new 3.64 diff sitting in my garage that will go in tomorrow. I will update with results.

larns576 · 02-04-2012, 09:01 PM

my car made a similar noise whenever i shifted from R->D and D->R. The dealer said they lubed the rear diff joints and end plate and replaced some gasket. According to the Service Receipt, there seems to be a bulletin on it.

01-31-2012, 06:08 PM	#1
Rockyca First Lieutenant 34 Rep 356 Posts Drives: 2016 340i M-Sport Join Date: Jan 2012 Location: Toronto iTrader: (1)	Clunking noise from rear Video Inside I am getting a clunking noise from the rear especially when transferring loads. I can reproduce it by rocking the car back and fourth with quite a bit of force. Check out the video and let me know what you guys think. Thanks a bunch! Car is a 2006 323i 6mt. Has around 75k miles on it.
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01-31-2012, 06:09 PM	#2
DJ Apex Lieutenant 25 Rep 473 Posts Drives: 2006 330i Join Date: Nov 2010 Location: Houston TX iTrader: (1)	fail link! (FIXED LINK) lol Sounds like rear end monuts, letting the rear end move up and down when load is on and off. Or drive alxes . best bet is get it in the air and get under the car while u move the wheel with your hand.. but i may be wrong ive never played with the rear end of my e90 Last edited by DJ Apex; 01-31-2012 at 06:35 PM..
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02-03-2012, 10:37 PM	#3
Volasko Colonel 705 Rep 2,605 Posts Drives: 06 330i E90, 18 530xe G30 Join Date: Dec 2010 Location: Toronto iTrader: (2) Garage List 2018 BMW 530e M Sport [9.00] 2006 BMW E90 330i [8.28]	Well it sounds like something is loose. Get it on a lift and start swinging that rubber mallet, not too hard of course! That noise will be easily recreated which should make it pretty easy to find the loose connection.
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02-03-2012, 11:02 PM	#4
Rockyca First Lieutenant 34 Rep 356 Posts Drives: 2016 340i M-Sport Join Date: Jan 2012 Location: Toronto iTrader: (1)	There is something up within the differential itself. The input bearing is shot, already figured that out, and I am sure that there is something else causing excess play in there. I have a new 3.64 diff sitting in my garage that will go in tomorrow. I will update with results.
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02-04-2012, 09:01 PM	#5
larns576 New Member 2 Rep 21 Posts Drives: 328i Join Date: Jul 2010 Location: SF, CA iTrader: (0)	my car made a similar noise whenever i shifted from R->D and D->R. The dealer said they lubed the rear diff joints and end plate and replaced some gasket. According to the Service Receipt, there seems to be a bulletin on it.
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