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Go Back   E46Fanatics > Tuning & Tech > Suspension & Braking

Suspension & Braking
Have some questions about suspension or brake setups for your E46 BMW? Get all your answers here!

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Old 07-02-2010, 02:09 PM   #1
Ineil
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Rear end squirrelly with med to hard acceleration

Can not find anything at the rear that seems out of place, loose or missing.....any ideas? I have recently lost my DSC functionality.

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Old 07-02-2010, 03:32 PM   #2
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Rear trailing arm bushings most likely.
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Old 07-02-2010, 03:50 PM   #3
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I just replaced with Rogue Engineering RTABs about 5k miles ago, but I will check them.
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Old 07-02-2010, 05:02 PM   #4
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If you recently had your RTAB's replaced, did you go get an alignment? If not, that is the reason why. Your alignment is off and you need to get it realigned. The trailing arms that you remove to replace the RTAB's are what you adjust to correct the alignment. It is precise and if you did not put it back EXACTLY where you pulled it off, your alignment will be off.
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Old 07-02-2010, 06:22 PM   #5
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That was 5k miles ago, and I got a four wheel alignment when I had new shocks, struts and springs installed about 6 -7 months ago. This issue just started a few weeks ago.
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Old 07-05-2010, 03:25 PM   #6
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I took a real good look at it this afternoon, and nothing obvious. There does seem to be a little leak where the pasenger side drive axle connects to the differential. Everything seems to be tight and solid. Turning left and breaking makes a strange gringing or scraping noise. Could it be the drive axle? How do I tell?
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Old 07-05-2010, 03:34 PM   #7
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Quote:
Originally Posted by Ineil View Post
I took a real good look at it this afternoon, and nothing obvious. There does seem to be a little leak where the pasenger side drive axle connects to the differential. Everything seems to be tight and solid. Turning left and breaking makes a strange gringing or scraping noise. Could it be the drive axle? How do I tell?
Turning left makes grinding from rear? How do CV boots look? Torn, or any signs of leakage around boots....You mention leak @ diff, anywhere else?

Any chance of wheel rubbing?
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Old 07-05-2010, 03:38 PM   #8
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I checked the boots, they looked fine, no tears or leakage. It dosn't sound like rubbing, it sounds more like metal.
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Old 07-05-2010, 03:48 PM   #9
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Could it be the wheel bearing?
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Old 07-07-2010, 08:56 PM   #10
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I found the noise is coming from the front, I think I have either a loose or cracked break pad. I am more concerned about the loose rear. I am going to check the axle shafts this weekend to see how much movement there is. Checked everything this weekend and everything looks good, wheel bearings were fine, now for the axle shafts.
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Old 07-22-2010, 06:54 PM   #11
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Well the problem has been found. I am not sure why I did not find it, but Tischer BMW has a free inspection offer and they found the right rear wheel bearing is shot. It is real bad. Thaey want $1,130.00 to replace......too much?
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