02-10-2020, 10:22 PM | #1 |
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Rear windshield rattle?
Hey guys.
Recently picked up a mint sub 40k mile 1 owner M4 from major dealership. Car is super clean, however, under heavy acceleration/deceleration, i noticed the car makes a TON of rattle noises from the rear window. Anybody know how to fix this/what could be causing this?
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02-10-2020, 11:44 PM | #2 | |
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02-10-2020, 11:49 PM | #3 | |
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02-11-2020, 06:07 AM | #4 | ||
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02-16-2020, 04:39 AM | #5 |
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Could be the black plastic pieces above the seats that you can flip up to reveal a hook (maybe for baby seats).. Installing a piece of felt tape in between the edges and on top of the hook can help.
Or for me, my dash cam installer, when tucking the wires away on the rear right corner of my car hastily put back a section of the C pillar back incorrectly, leaving part of it unhooked on the inside so it rattled during my cold starts until I went back to re-adjusted it. Now it's solid and rattle free again. |
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02-16-2020, 04:48 AM | #6 |
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I’ve had the majority of my car’s rear seat interior apart to fix all of the rattles. I found noises around the third brake light cover, the speaker grills, the child seat anchors, the c-pillar trim, the seat latches, the backrest anchors, the entire rear deck lid, and even the airbag mounts.
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02-18-2020, 04:47 PM | #7 | |
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04-17-2020, 11:05 PM | #8 |
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Here is the felt tape I used to quiet down all the rattles in my f36: https://amzn.to/2YLnDT9
I also went ahead and added felt tape on all the door storage bins since the lining is all plastic. Anything I stored in them would rattle like craze. Another key area is the storage unit on the underside on the driver-side. I store several sunglasses, probably more than I can fit, either way since the inside housing is all plastic, it rattles like crazy. Last edited by jcortez75; 05-08-2020 at 09:10 AM.. |
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01-05-2021, 01:37 AM | #10 |
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Do you have an aftermarket exhaust? If so check and see if that metal brace that holds the midpipe in place is rubbing against the exhaust. Mine does and on rough roads it rattles against it and causes vibration in the cabin that sounds like it's coming from the rear windshield
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01-05-2021, 10:45 AM | #12 |
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It's the 3rd brake light housing. I took it to a dealer for them to fix and they put some felt tape on the inside of the panel. It helped a little bit, but it didn't completely go away. It only happens on bumpy roads or during hard acceleration. Super annoying.
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01-05-2021, 10:58 AM | #13 | |
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01-05-2021, 11:02 AM | #14 |
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How do you guys even hear rattles under heavy acceleration over the screaming of the passengers and being yelled "NO!! Slow down!! I hate this!"? Maybe I need to get my ears checked.
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01-05-2021, 11:59 PM | #15 |
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Only when I have my girlfriend or mother in the car 😂
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01-06-2021, 10:32 AM | #16 | |||
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I'm going to do the felt tape. Keep in mind the 4 series forum all bought some new clips that broke from getting tints but our cars don't have the same set of clips, and they won't fit so don't order those like I almost did lol. |
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01-06-2021, 10:45 AM | #17 | ||||
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01-06-2021, 10:56 AM | #18 | |
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01-06-2021, 01:30 PM | #19 | |||||
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01-06-2021, 10:30 PM | #20 | ||||||
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From what you described— this is 10000% my exact issue.
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01-06-2021, 11:10 PM | #21 | ||
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01-06-2021, 11:15 PM | #22 |
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