Help Identifying Engine Sound

1nline · 07-06-2023, 12:19 PM

Car is 2021 M340i. Stock.

Can anyone please help me figure out what this sound is and if it is normal or not?

Thank you.

Please check video link below.

Jnasratyar · 07-06-2023, 12:25 PM

Quote:

Originally Posted by 1nline

Car is 2021 M340i. Stock.

Can anyone please help me figure out what this sound is and if it is normal or not?

Thank you.

Please check video link below.

https://youtu.be/9BoXHCIZiuw

Kinda just sounds like the noise it makes when the ac is on. I Definitely could be wrong though.

1nline · 07-06-2023, 12:28 PM

Quote:

Originally Posted by Jnasratyar

Kinda just sounds like the noise it makes when the ac is on. I Definitely could be wrong though.

Thank you for replying. I was also thinking it could be that.

Jnasratyar · 07-06-2023, 12:30 PM

Quote:

Originally Posted by 1nline

Thank you for replying. I was also thinking it could be that.

An easy test would just be to let it idle and turn ac on and off and see if the sound persists when off.

BLK.G20 · 07-06-2023, 02:10 PM

Sound like noise from AC being on. Does it make this noise with the AC off?

Jnasratyar · 07-06-2023, 07:39 PM

Quote:

Originally Posted by ryann

Sound like noise from AC being on. Does it make this noise with the AC off?

My bad, never got the notification you responded, only the post appreciation one. The ac makes a weird noise when it’s on during idle. My friend pointed it out to me the other week.

1nline · 07-09-2023, 08:10 AM

Quote:

Originally Posted by Jnasratyar

My bad, never got the notification you responded, only the post appreciation one. The ac makes a weird noise when it’s on during idle. My friend pointed it out to me the other week.

Just confirmed it myself! Thanks so much!

seccsc · 07-09-2023, 08:27 AM

I would check your serpentine belt for any issues.

Jnasratyar · 07-09-2023, 09:53 AM

Quote:

Originally Posted by 1nline

Just confirmed it myself! Thanks so much!

Haha, no problem, glad I could help.

07-06-2023, 12:19 PM	#1
1nline New Member 5 Rep 17 Posts Drives: G20 Join Date: Jun 2023 Location: East iTrader: (0)	Help Identifying Engine Sound Car is 2021 M340i. Stock. Can anyone please help me figure out what this sound is and if it is normal or not? Thank you. Please check video link below.
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07-06-2023, 02:10 PM	#5
BLK.G20 Lieutenant 210 Rep 419 Posts Drives: 2023 M340 Xdrive, 2023 M3CX Join Date: May 2023 Location: New Jersey iTrader: (0)	Sound like noise from AC being on. Does it make this noise with the AC off?
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07-09-2023, 08:27 AM	#8
seccsc Captain 239 Rep 714 Posts Drives: G20 M340xi Join Date: Jun 2006 Location: VA iTrader: (0)	I would check your serpentine belt for any issues. __________________
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