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      11-15-2020, 09:45 AM   #1
livinlife
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High pitch sound in car when start up 2021 x6 *VIDEO INSIDE*

Just wondering if others have the same noise. I get a very high pitch, radio signaly sound, when I first start my car. It disappears after a few minutes but it sounds as though my radio... but it isnt. Its like a high pitch mic sound or some it comes for 15 seconds and only on startup???

Has anyone else noticed?

Last edited by livinlife; 11-16-2020 at 06:42 PM..
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      11-16-2020, 05:18 PM   #2
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I have no idea except I have an e71 and it has just started recently...weird.
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      11-16-2020, 06:41 PM   #3
livinlife
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Here is a video u can hear it a few
Seconds after i put in drive


https://streamable.com/a001lh
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      11-17-2020, 08:15 AM   #4
livinlife
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Update

I think it has something to do with maybe thr ac powering on some fan or unit
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      11-17-2020, 08:32 AM   #5
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Quote:
Originally Posted by livinlife View Post
Update

I think it has something to do with maybe thr ac powering on some fan or unit
could be. it sound like maybe a fan or something. To me it sounds like it is coming from the top front near the glovebox. Sounds like feedback from a microphone is the best i can describe. it is faint, but noticeable.
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      11-17-2020, 07:04 PM   #6
livinlife
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What could it be???

And its only and usually in beginning

Sometimes i dont even here it and sometimes it comes..


I pray its a soultion to it..... or maybe its normal .
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      11-17-2020, 08:00 PM   #7
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It’s kind of hard to make out. Does it change in pitch when under acceleration? If not, it could be a malfunctioning voice microphone, a faulty active noise cancellation microphone or even a faulty speaker.
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      11-25-2020, 07:48 AM   #8
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Took to bmw and they checked all.....

Couldnt find an issue... got car back it does it sometimes and sometimes it doesnt

I relized with ac off, radio on 0 volume, no ac on just car on ... if you have a1 ears and put ur ear close to the digital ac temp lcd u can hear it lower... which is on and u hear it maybe itd the electronical system in the car or maybe its mine.... does anyone have same noise.... if someone can try it would be appericiated... here is 2 videos....

https://streamable.com/g1la7x

https://streamable.com/37gt1p
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      11-25-2020, 10:57 PM   #9
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Can the service department personnel hear it? Or are they claiming they don't hear it and it all checks out normally?

Their is a phenomenon in the very high frequency range that can't be heard by older adults but is excruciatingly annoying to younger adults and teenagers. I worked in IT for a school district and we tested this out with a classroom full of teenagers and it drove them nuts. We adults over 40 couldn't hear a damn thing.

I would be interested to find out if you happen to know what frequency range the noise is in. This could be an issue that might not be detectable by older adults that have lost their hearing in that frequency range. I'm 63 and couldn't hear a thing in your video.

Another example of this frequency range issue is with old CRT monitors. Some would emit this high frequency squeal that no one could hear but younger people in their teens and early 20s. It might be related. I'm not saying you don't have a problem with your vehicle. I'm just saying maybe the service personnel can't hear it.
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      11-26-2020, 06:50 PM   #10
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Yes i understand what ur saying.... maybe your right

Its very hard unless ur ocd but deff there if u focus in quiet csr no music no ac on

Need someone with same car to see if its normal
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      11-27-2020, 08:18 PM   #11
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Anyone
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      11-28-2020, 09:04 AM   #12
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That would annoy me
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      11-28-2020, 03:00 PM   #13
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So f pist bro. Brand new car custpmized and now an issue they dont know... service said there going to talk to germany and maybe itd ac vent, or digital thermo display like that area.... praying they replace it and it goes away.... what else to do???? Its coming from that srea where u control the temp on ac...
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      11-30-2020, 11:16 AM   #14
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check this thread out and see if it matches your issue.

https://g05.bimmerpost.com/forums/sh...ghlight=squeak
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      12-03-2020, 10:01 PM   #15
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They switched on hvac unit seem to be gone lets see
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      12-14-2020, 03:00 PM   #16
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Quote:
Originally Posted by livinlife View Post
They switched on hvac unit seem to be gone lets see
Any updates? Is the issue gone?

What part of the HVAC unit did they switch? Like the little screen or the entire panel with buttons and stuff?
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      12-14-2020, 07:02 PM   #17
livinlife
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Whole hvac display and fan vents... but it went away a little but i head it still a little specially when ac off and music off on 0...

Put ur ear around the tempture display u should hear it very loud....

Anyone else have this issue
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      12-16-2020, 09:22 PM   #18
livinlife
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I still hear ir a little i guess the ac display disdnt change it much... or maybe my ears too sensetive

Can everyone try it to see if they hear a little ring in there ear from it?
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      01-19-2021, 05:07 AM   #19
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Looks like I have the same problem!
At first I thought it was radio or speakers. But hums in the glove compartment
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      01-19-2021, 02:56 PM   #20
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Quote:
Originally Posted by westq1980 View Post
Looks like I have the same problem!
At first I thought it was radio or speakers. But hums in the glove compartment
There is nothing high pitched about that sound. It sounds as if there's a fucking snowblower in your glove box LOL
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      01-19-2021, 03:38 PM   #21
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Yikes! That sounds like a fan bearing or something/fan out of balance! Get thee to a dealer!
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