weird sound from engine bay

Daniely30 · 11-10-2020, 08:31 AM

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so i just noticed a sound coming from engine bay when car is completely turned off, sounded like and old printing machine. i did drive the car prior to this (not hard) sounded like computer buzzing in various frequency. then after about 3 min it slowly faded. maybe i never paid attention before, maybe that sound was there all along, but doesn't sound like it should be there.

BMWZ4 · 11-10-2020, 09:44 AM

Perhaps fuel pump or something similar? On any bmw I've owned, I've always heard something 'running' after the vehicle was shut down

forza1976 · 11-10-2020, 11:42 AM

This is in one of the sticky posts. Page 86

https://www.bimmerpost.com/goodiesfo...S58-Engine.pdf

Young04 · 11-10-2020, 12:35 PM

Quote:

Originally Posted by forza1976

This is in one of the sticky posts. Page 86

https://www.bimmerpost.com/goodiesfo...S58-Engine.pdf

In my experience, you don't have to drive the car very hard for it to cause the cooling system to run after the car's been shut off. Even revving to 4K RPM a couple of times within 5 minutes of pulling into my driveway will do it.

11-10-2020, 08:31 AM	#1
Daniely30 Private 42 Rep 77 Posts Drives: 2017 340i Join Date: Feb 2015 Location: Nyc iTrader: (0)	weird sound from engine bay Featured on BIMMERPOST.com so i just noticed a sound coming from engine bay when car is completely turned off, sounded like and old printing machine. i did drive the car prior to this (not hard) sounded like computer buzzing in various frequency. then after about 3 min it slowly faded. maybe i never paid attention before, maybe that sound was there all along, but doesn't sound like it should be there.
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11-10-2020, 09:44 AM	#2
BMWZ4 Major General 1910 Rep 5,102 Posts Drives: '23 X1/'23 Allroad Progressiv Join Date: Apr 2010 Location: Toronto iTrader: (1)	Perhaps fuel pump or something similar? On any bmw I've owned, I've always heard something 'running' after the vehicle was shut down __________________ '11 Z4 30i (retired);'11 X3 28i (retired); '15 M235i Stage 1 Dinan (recalled & crushed); '16 M235i Stage 3 Dinan (retired); '15 X3 28i (retired); '14 328i (retired), 2019 X3M40i (retired); Loaded '18 X1 (retired); Loaded '20 X3MC DG, Black/Tan Merino (retired); Loaded '23 X1 Cape York green and Red/Black interior; '23 Audi A4 Allroad Progressiv
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11-10-2020, 11:42 AM	#3
forza1976 Major General 3398 Rep 6,589 Posts Drives: BMW Join Date: Aug 2007 Location: 49417 and 60610 iTrader: (13) Garage List 2022 BMW M3X [10.00]	This is in one of the sticky posts. Page 86 https://www.bimmerpost.com/goodiesfo...S58-Engine.pdf Attached Images
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