04-19-2018, 01:00 PM | #1 |
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F30 320D Rattle
Hi everyone, new to the forums and owning a BMW, recently purchased a 2014 320D M Sport Auto, cars perfect have done a few mods to it like a performance remap and a twin exhaust setup, one little thing started niggling me the past few days, I don't know if its always been there but whenever I accelerate there is a rattling/clattering noise sounds like metal, pretty sure its not the timing chain as it only rattles under acceleration, when the cars parked up and idling no noise whatsoever. I have read a few previous posts with similar issues saying that it may be an alternator pulley or a heat-shield, if anyone has any input or has come across this issues any input is much appreciated
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04-19-2018, 07:55 PM | #2 |
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Is this the noise you're talking about? You can just hear it in the video, it's more pronounced in the car. It's like as you described a clattering. I only get this with acceleration and not when I'm sitting revving the engine. I've got my 10000 service on Monday, I'll be having them check it out.
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04-20-2018, 01:22 AM | #3 |
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Yes very similar, just out of curiosity as it is in my case i only hear it inside the vehicle, if i accelerate there's no clattering on the exterior of the vehicle or engine bay, is this the same in your case?
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04-20-2018, 08:01 AM | #4 |
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I can only replicate the noise while driving. When I am sitting and revving I don't get that noise at all. I can't really hear a noticeable difference with the windows down either.
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04-23-2018, 05:46 PM | #5 |
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Brought it in today and of course I was in a hurry so I couldn't ride with a tech and of course they said they couldn't replicate the problem. Tomorrow I pick it up and they're going to ride with me. I'll let you know if there is anything from that.
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tomfromON13.00 |
04-24-2018, 02:18 PM | #6 |
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Sounds like normal diesel pinging under load. My car sounds the same, 2014 328d
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04-24-2018, 04:43 PM | #7 |
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Thanks, and I picked it up today and can't replicate the sound I was hearing. Even the pinging wasn't as loud. Talked to the tech and he said it could be because we had cold weather and that if it was anything with a serious diesel knock it would cause a CEL and that if I can replicate it again to come take a ride with him. We basically went from the 30's to 60's in the last 3 days. I had a 6 cylinder diesel for my last car and the 4 cylinder is a little noisier so like you said probably just normal chatter.
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