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      04-02-2007, 06:57 PM   #1
MagnitudeBruce
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Red face Rear end moan

On cold starts, making a hard left turn at very low speeds, I get a low-frequency moaning coming from the back of the car. It doesn't do it to the right. After a few minutes of driving and it's warmed up, the sound disappears. My mechanic says it's a worn plate in the diff($$YIKES$$) and will get worse over time. Others say it's probably a worn rear bearing. But the mechanic says that would be more of a ratcheting sound. Anyone experienced this?
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      04-04-2007, 12:01 PM   #2
bmwm3smg2
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Definitely not worn bearings. You'll hear that constantly specially when turning. Not sure about which model years were affected but there was a TSB about differential fluid change to fix a few diffy noise complaints.
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      04-06-2007, 02:53 PM   #3
MagnitudeBruce
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Thanks for the info. Definitely a good start. I'll give the dealer a call and check on service bulletins. Hope it's as simple as that.
- Bruce
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