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      10-09-2012, 03:28 PM   #5
Flood
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Drives: E92 325 se
Join Date: May 2012
Location: Kilmarnock

Posts: 13
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I have a 2006 e92 2.5 auto that has a cracking noise that happens when I move forward or reverse. I thought it sounded like a heat shield/ exhaust. Definitely metal on metal and a quick bang.

I had it at a BMW specialist local to me yesterday and he reckons its the diff/prop shaft making the noise. Funny, I heard a E90 pulling away from traffic lights when I was walking today and it cracked and made the same noise.

Had a search online and there are a few theories, but I will hang off from a new diff just now..
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