High pitch whine from engine... when engine is off

KingpenM3 · 11-23-2020, 08:14 AM

2017 330i. If I turn the ignition on, but do not start the engine, a pretty darn loud whine comes from the engine, see youtube link. Any ideas on what is making all of this racket? TIA

https://youtu.be/w8IJsezUGBw

eta: It will make this sound when the engine is dead cold, hasn't been run at all.

CincyBearcats · 10-02-2022, 01:13 AM

Wondering the same thing myself. Did you ever figure this out?

drapzzy · 10-02-2022, 12:55 PM

Quote:

Originally Posted by CincyBearcats

Wondering the same thing myself. Did you ever figure this out?

its the ecu.

11-23-2020, 08:14 AM	#1
KingpenM3 Private 34 Rep 75 Posts Drives: SS/SS ///M3 Join Date: Jun 2015 Location: Louisiana iTrader: (0)	High pitch whine from engine... when engine is off - ignition on 2017 330i. If I turn the ignition on, but do not start the engine, a pretty darn loud whine comes from the engine, see youtube link. Any ideas on what is making all of this racket? TIA https://youtu.be/w8IJsezUGBw eta: It will make this sound when the engine is dead cold, hasn't been run at all. __________________ '16 ///M3 SS/SS ED-11/30/16 PCD-1/21/16 Last edited by KingpenM3; 11-23-2020 at 08:51 AM..
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10-02-2022, 01:13 AM	#2
CincyBearcats Enlisted Member 31 Rep 46 Posts Drives: 2017 F31 330i xDrive, M sport Join Date: May 2022 Location: Los Alamos, NM iTrader: (0)	Wondering the same thing myself. Did you ever figure this out?
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