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GLC 300 Rattle Noise

Old 01-24-2019, 09:39 AM
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2016 GLC 300
GLC 300 Rattle Noise

I have a 2016 GLC 300 with a very annoying rattle noise coming from the passenger side cargo area. I'm attaching a video where I held my phone near the small window in the cargo area on the passenger side. Dealership has made a couple attempts already to take care of the rattle noise including replacing the seat belt assembly. Anyone experience a similar rattle or have any ideas what this might be?
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File Type: mov
IMG_0751.TRIM.MOV (346.9 KB, 55 views)
mikeman2580 is offline  
Old 02-01-2019, 04:16 PM
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Hi there,

My GLC300 has exactly the same problem. But have not yet find a way to reolve it. Following the thread here.
hermlee is offline  
Old 02-01-2019, 04:46 PM
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2017 GLC 300
I had a similar problem with my 2017 GLC. It turned out to be a broken speaker mount, in the left side, as I recall, even though the noise seemed to be coming from the right. Fixed under warranty.
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Old 02-01-2019, 09:54 PM
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It could be from the center overhead console. Have someone sit on passages seat to confirm.

I fixed mine with adding foam tape to the top of the overhead console.
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Old 02-01-2019, 10:50 PM
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2019 C43 Sedan
Get a used or cheap stethascope, that's what mechanics use, have someone drive while you use the stehascope to listen for the noise. Many times it sounds like it comes from one place it's actually coming from somewhere else and the stethoscope helps localize it.
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