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Unread 09-28-2009, 07:25 PM   #6

Name: Ebby1600
Title: United Newb
Status: Offline
Join Date: Sep 2009
Location: Upstate New York - Think Snow
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Your Ride: 2006
I have an appointment with the dealership to diagnose the situation. In dealing with this noise one of the difficulties I have had is in describing the noise. A groan? I guess it could be described that way. Another way is to imagine a croaking bullfrog caught under the car and each time the axle makes a rotation a muffled 'croak' come from under the car.

I did hear about a service bulletin regarding a rear end problem. Does anyone know the number of that bulletin? I downloaded the pdf list and bookmarked the site to read them.

I am really anxious to have this sound go away and return to quiet motoring.

PS - After writing about the M5 diff oil I realized that I am comparing apples to oranges and the M5 anecdote most likely does not apply to my situation.
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