Z4 M Humming Noise after turning off engine (video)

z4mcdreamer · 04-17-2024, 01:49 PM

Can anyone tell me what's causing this humming sound? It comes on after I turn off my car, and it stops after a few minutes or if I open the door.

grannyknot · 04-17-2024, 03:16 PM

Can't say I hear anything on your video but it could be a few things, cooling fan for the ECU, maybe the AC fan.

z4mcdreamer · 04-18-2024, 11:03 AM

I figured it out! My idle control valve just needed some cleaning. I used carburetor cleaner, and it worked like a charm.

04-17-2024, 01:49 PM	#1
z4mcdreamer New Member 5 Rep 16 Posts Drives: BMW Z4 M Coupe Join Date: Jul 2023 Location: California iTrader: (0)	Z4 M Humming Noise after turning off engine (video) Can anyone tell me what's causing this humming sound? It comes on after I turn off my car, and it stops after a few minutes or if I open the door.
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04-17-2024, 03:16 PM	#2
grannyknot Captain 1010 Rep 809 Posts Drives: 2008 Z4M coupe Join Date: Oct 2021 Location: toronto iTrader: (0)	Can't say I hear anything on your video but it could be a few things, cooling fan for the ECU, maybe the AC fan. __________________ 2008 E86 M coupe
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04-18-2024, 11:03 AM	#3
z4mcdreamer New Member 5 Rep 16 Posts Drives: BMW Z4 M Coupe Join Date: Jul 2023 Location: California iTrader: (0)	I figured it out! My idle control valve just needed some cleaning. I used carburetor cleaner, and it worked like a charm.
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