N52 weird sound. ( not the common ones )

aexlm · 11-04-2022, 04:50 PM

Hi guys, im having this weird sound ( it sounds like a dead bearing ) only when the car is completely cold. It goes away after a while. already changed the belt, tensioner and pulley. Any thoughts?

Video makes it sound louder.

aexlm · 11-18-2022, 09:11 AM

I took two more videos of the sound. It's kind of hard to hear it on the videos. Its like a '' grrgll '' lol its making me crazy. Please help me diagnose it.

sabino56 · 11-18-2022, 07:05 PM

Remove the belt, start car and see if noise go away. It seems noise is very obvious so I’d think you’d be able to determine if it accessories or not. You’ll get some codes due to not charging that you’ll have to clear (maybe they’ll go away with time, I don’t know, I’ve always just cleared them).

11-04-2022, 04:50 PM	#1
aexlm BMW Enthusiast 39 Rep 30 Posts Drives: e90 328i pre LCI Join Date: Oct 2022 Location: Guatemala iTrader: (0)	N52 weird sound. ( not the common ones ) Hi guys, im having this weird sound ( it sounds like a dead bearing ) only when the car is completely cold. It goes away after a while. already changed the belt, tensioner and pulley. Any thoughts? Video makes it sound louder. Last edited by aexlm; 11-18-2022 at 09:12 AM..
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11-18-2022, 09:11 AM	#2
aexlm BMW Enthusiast 39 Rep 30 Posts Drives: e90 328i pre LCI Join Date: Oct 2022 Location: Guatemala iTrader: (0)	I took two more videos of the sound. It's kind of hard to hear it on the videos. Its like a '' grrgll '' lol its making me crazy. Please help me diagnose it.
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11-18-2022, 07:05 PM	#3
sabino56 Private First Class 76 Rep 135 Posts Drives: 2006 E90 330i Join Date: Mar 2018 Location: AZ, Tucson iTrader: (0)	Remove the belt, start car and see if noise go away. It seems noise is very obvious so I’d think you’d be able to determine if it accessories or not. You’ll get some codes due to not charging that you’ll have to clear (maybe they’ll go away with time, I don’t know, I’ve always just cleared them).
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