Help identify noise! Video attached

mrp88 · 03-25-2018, 10:42 PM

I just started noticing a constant rattle. It's mostly heard when window is down, and I'm driving along something (another car, wall, etc.) or when idle. It also seems to resonate- even when idle.

Sorry for the dizzy video, just recorded for the ears not the eyes.

I've searched rattle in the forum and can't seem to replicate it.

Any insight would be great.

Thanks

RocketSurgeon · 03-26-2018, 02:22 AM

It sounds like a loose heat shield vibrating and buzzing. Check the heat shields around the exhaust. Since you live in Boston, galvanic corrosion may have eroded the fasteners or heat shields.

03-25-2018, 10:42 PM	#1
mrp88 Registered 0 Rep 3 Posts Drives: 2006 BMW 325i E90 Join Date: Mar 2018 Location: Boston iTrader: (0)	Help identify noise! Video attached I just started noticing a constant rattle. It's mostly heard when window is down, and I'm driving along something (another car, wall, etc.) or when idle. It also seems to resonate- even when idle. Sorry for the dizzy video, just recorded for the ears not the eyes. I've searched rattle in the forum and can't seem to replicate it. Any insight would be great. Thanks
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03-26-2018, 02:22 AM	#2
RocketSurgeon Lieutenant 264 Rep 459 Posts Drives: 2008 135i Manual, CBR650F Join Date: Jan 2017 Location: NC iTrader: (0)	It sounds like a loose heat shield vibrating and buzzing. Check the heat shields around the exhaust. Since you live in Boston, galvanic corrosion may have eroded the fasteners or heat shields.
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