04-25-2018, 07:14 PM | #1 |
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Max defrost loud humming noise
I’m pretty sure this is just a defect but whenever I hit the max defrost button and it gets up to speed (after a couple of seconds) there’s a quite loud constant humming noise. Almost like someone blowing air over a beer bottle to make that whistling noise. Never heard anything like it before from a car, is anyone else getting this?
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04-25-2018, 07:47 PM | #2 | |
Pygocentrus Piraya
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2021 BMW X3MC Donington Grey Metallic / Sakhir Orange & Black Extended Merino Leather / Aluminum Carbon Structure |
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04-25-2018, 09:40 PM | #3 |
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Yeah it happens every time for me. Also happened when the car was warmed up.
Bringing it in tomorrow for a few things anyway so I guess I’ll add this to the list... |
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11-30-2018, 03:13 PM | #4 |
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11-30-2018, 03:31 PM | #5 |
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Don't know if there is a fix, but it is a known issue (to BMW)
NHTSA ID Number: 10145304 Manufacturer Communication Number: B640518 Summary EXCESS NOISE WHEN DEFROST BLOWER IS AT MAX: Loud, rushing, wind noise is heard from ventilation outlets, as shown in video, https://************/V640418 when defroster blower is set at maximum speed. Vehicles MAKE MODEL YEAR BMW X3 2018 BMW X4 2018 |
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11-30-2018, 03:35 PM | #6 | |
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11-30-2018, 04:34 PM | #7 |
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11-30-2018, 05:09 PM | #8 |
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I brought it in a while ago and they replaced the blower motor. Haven't noticed the humming as much but I also haven't tested it in a while with the max defrost on.
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11-30-2018, 11:12 PM | #10 |
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I had similar issue.. ended up being many months long process.
https://x3.xbimmers.com/forums/showthread.php?t=1496114 |
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