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      04-24-2018, 01:56 PM   #1
webern135
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metallic rattle sound 135i HELP!!!!

Hi all-

I have a 2013 135i 6mt that's all stock. I've recently been hearing a metallic clanging, rattling sound at low RPMs. Sounds kinda like metal-on-metal, or a heavy dragging can or something. I only really hear it at low speeds/idle/low RPMs.

Repairs i've had done in past 6-9 months have been a new transmission (thankfully warranty job...) and a fix to the engine harness.

Here's a clip of the sound I recorded when the car was parked. Starting at :04 (and at :22) when you can really hear the sound, i'm holding the car at about 1000 rpms.

https://soundcloud.com/user-82673778...567/135-rattle

Any help would be so appreciated! I'm in my extended year of CPO warranty so I'm trying to get a vague idea if this will be covered or not before bringing it to the dealer.

thanks!!
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      04-24-2018, 04:27 PM   #2
1mang
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Check your exhaust support bracket. I had something similar and it was due to the bracket being stripped/loose from a turbo install (had to drop engine a little bit).
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      04-26-2018, 10:11 AM   #3
webern135
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thanks mang ill look into that
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