2016 328i F30 Please help me! Identifying strange sound (VIDEO)

hanahjamous · 11-17-2021, 12:59 AM

I have a 2016 328i. Each time I am on idle or the the Start/Stop switch is activated, this strange sound always appears until I accelerate or the engine turns off. I attached a link of my YouTube video of the sound, please let me know what you think! Thank you in advance

https://youtube.com/shorts/w9Dh2hkZwUI?feature=share

SuperLomi · 11-17-2021, 01:45 AM

Sounds like boost control solenoid whine. If you can reliable re-create it see of you can trace it back to that.

Actually, listening to it again on my computer (instead of my phone) it sounds more cyclical. The boost solenoid is more of a constant high pitch drone. Maybe ACC belt slipping?

11-17-2021, 12:59 AM	#1
hanahjamous Registered 0 Rep 1 Posts Drives: 2016 BMW 328i Join Date: Nov 2021 Location: California iTrader: (0)	2016 328i F30 Please help me! Identifying strange sound (VIDEO) I have a 2016 328i. Each time I am on idle or the the Start/Stop switch is activated, this strange sound always appears until I accelerate or the engine turns off. I attached a link of my YouTube video of the sound, please let me know what you think! Thank you in advance https://youtube.com/shorts/w9Dh2hkZwUI?feature=share
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11-17-2021, 01:45 AM	#2
SuperLomi First Lieutenant 204 Rep 383 Posts Drives: 2013 335i M-Sport Join Date: Nov 2020 Location: KY iTrader: (0)	Sounds like boost control solenoid whine. If you can reliable re-create it see of you can trace it back to that. Actually, listening to it again on my computer (instead of my phone) it sounds more cyclical. The boost solenoid is more of a constant high pitch drone. Maybe ACC belt slipping? Last edited by SuperLomi; 11-17-2021 at 07:02 AM..
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