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rear end noise

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Old Sep 4, 2008 | 01:13 PM
  #1  
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From: Cocoa Fl
Default rear end noise

I have a C5 A4 with about 52K and have recently been hearing what I can best describe as a grinding noise when slow turning such as in a parking lot. This is currently my DD so I am concerned and would like some ideas as how to proceed. Thanks for any help.
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Old Sep 4, 2008 | 01:19 PM
  #2  
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I would have the diff fluid changed. Make sure the replacement fluid has the limited slip additive. If not make sure they put the additive in.

Hopefully this solves the problem.

Also are you sure the diff is not leaking. Maybe it is and you are low on fluid?
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Old Sep 4, 2008 | 01:43 PM
  #3  
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I havent noticed any leaking, I was wondering about Royal Purple.. it claims to not need additive?
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Old Sep 4, 2008 | 02:50 PM
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Check rear wheel bearings.
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