Unusual sound from 2011 x28i?

brianhinton77 · 12-13-2020, 07:20 PM

Sitting in drive thru line with window done, I heard this sound.....

https://drive.google.com/file/d/1WUg...Vx_wcPvjg3gA8C

Does anyone here know what this may be? Thank you!

ItsmeX5 · 12-14-2020, 08:39 AM

Video says I need to request access

brianhinton77 · 12-14-2020, 01:05 PM

Link should be good to go now...sorry!

ItsmeX5 · 12-14-2020, 01:54 PM

Not experienced enough on this platform to know, but I would get it on a lift with the car on and try to pinpoint it. Can be something loose in the exhaust system...does the noise change when you shift from p, r, d? Does it get louder on acceleration, etc... best bet get it on a lift.

Hopefully it’s just something loose

brianhinton77 · 12-14-2020, 07:11 PM

Noise isn’t there all the time...only sometimes. It does not increase with speed or gear selection

Opie55 · 12-14-2020, 11:10 PM

That really does sound like something loose - not internal to the engine or transmission. You can't tell what area it's coming from on a video, but an exhaust brackets seems like a good starting point. Or could be some other loose bolt, or even a cat or muffler falling apart internally.

Asianoak · 01-05-2021, 01:41 PM

Not 100% since I've only experienced that sound while listening from driver's seat, but I think that's the transmission and completely normal. On later year X3s there are small clips or plugs that help to isolate and reduce this sound... but on our early years these plugs are missing. They can be ordered and should be fairly easy to install. I have always meant to get them but always forget and after 5 years I don't see the point anymore in putting in the time or effort. should be parts 7 and 8

Asianoak · 01-05-2021, 01:44 PM

Forum isn't uploading image for some reason... let's try again.

brianhinton77 · 01-05-2021, 11:22 PM

Quote:

Originally Posted by Asianoak

Not 100% since I've only experienced that sound while listening from driver's seat, but I think that's the transmission and completely normal. On later year X3s there are small clips or plugs that help to isolate and reduce this sound... but on our early years these plugs are missing. They can be ordered and should be fairly easy to install. I have always meant to get them but always forget and after 5 years I don't see the point anymore in putting in the time or effort. should be parts 7 and 8

Thank you for your input...I have read about these plugs and was going to order some.

12-13-2020, 07:20 PM	#1
brianhinton77 Private First Class 90 Rep 176 Posts Drives: 2011 X3 28i, 2016 X5 M-Sport Join Date: Nov 2020 Location: Alabama iTrader: (0) Garage List 2016 BMW R1200GS [0.00] 2007 BMW R1200R [0.00] 2016 BMW X5 S35i [0.00] 2011 BMW X3 x28i [0.00]	Unusual sound from 2011 x28i? Sitting in drive thru line with window done, I heard this sound..... https://drive.google.com/file/d/1WUg...Vx_wcPvjg3gA8C Does anyone here know what this may be? Thank you!
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12-14-2020, 08:39 AM	#2
ItsmeX5 Lieutenant 22 Rep 458 Posts Drives: 2018 X5, 2013 M5, 2007 SL55 Join Date: Jul 2011 Location: Los Angeles, CA iTrader: (2)	Video says I need to request access
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12-14-2020, 01:05 PM	#3
brianhinton77 Private First Class 90 Rep 176 Posts Drives: 2011 X3 28i, 2016 X5 M-Sport Join Date: Nov 2020 Location: Alabama iTrader: (0) Garage List 2016 BMW R1200GS [0.00] 2007 BMW R1200R [0.00] 2016 BMW X5 S35i [0.00] 2011 BMW X3 x28i [0.00]	Link should be good to go now...sorry!
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12-14-2020, 01:54 PM	#4
ItsmeX5 Lieutenant 22 Rep 458 Posts Drives: 2018 X5, 2013 M5, 2007 SL55 Join Date: Jul 2011 Location: Los Angeles, CA iTrader: (2)	Not experienced enough on this platform to know, but I would get it on a lift with the car on and try to pinpoint it. Can be something loose in the exhaust system...does the noise change when you shift from p, r, d? Does it get louder on acceleration, etc... best bet get it on a lift. Hopefully it’s just something loose
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12-14-2020, 07:11 PM	#5
brianhinton77 Private First Class 90 Rep 176 Posts Drives: 2011 X3 28i, 2016 X5 M-Sport Join Date: Nov 2020 Location: Alabama iTrader: (0) Garage List 2016 BMW R1200GS [0.00] 2007 BMW R1200R [0.00] 2016 BMW X5 S35i [0.00] 2011 BMW X3 x28i [0.00]	Noise isn’t there all the time...only sometimes. It does not increase with speed or gear selection
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12-14-2020, 11:10 PM	#6
Opie55 Colonel 1195 Rep 2,907 Posts Drives: '15 650i Convertible Join Date: Apr 2018 Location: US iTrader: (0)	That really does sound like something loose - not internal to the engine or transmission. You can't tell what area it's coming from on a video, but an exhaust brackets seems like a good starting point. Or could be some other loose bolt, or even a cat or muffler falling apart internally.
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01-05-2021, 01:41 PM	#7
Asianoak Lieutenant 143 Rep 451 Posts Drives: '11 E92 M3 & "11 X3 Join Date: Jun 2013 Location: Southern Oregon iTrader: (2) Garage List 2011 M3 [0.00]	Not 100% since I've only experienced that sound while listening from driver's seat, but I think that's the transmission and completely normal. On later year X3s there are small clips or plugs that help to isolate and reduce this sound... but on our early years these plugs are missing. They can be ordered and should be fairly easy to install. I have always meant to get them but always forget and after 5 years I don't see the point anymore in putting in the time or effort. should be parts 7 and 8 __________________ Instagram: @dasianoak
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01-05-2021, 01:44 PM	#8
Asianoak Lieutenant 143 Rep 451 Posts Drives: '11 E92 M3 & "11 X3 Join Date: Jun 2013 Location: Southern Oregon iTrader: (2) Garage List 2011 M3 [0.00]	Forum isn't uploading image for some reason... let's try again. Attached Images __________________ Instagram: @dasianoak
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