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Originally Posted by Fronzdan
I saw "metallic rattling" and I thought the very common exhaust flap rattle. But that ain't it. That sounds awful. Like bearings are grinding or something.
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This started happening to my 13' 335i after my rear bumper was replaced after a minor accident. Still haven't taken it in, and it only seems to happen every once in a while. It disappears when you hear the flap open for the left exhaust pipe.