B58 m340i exhaust bubbling

shez1234 · 10-08-2024, 12:53 PM

Hey guys,

Recently noticed a new bubbling noise coming from my m340i exhaust. Once engine is up to temperature it pretty much goes away. It’s different to normal exhaust sound and it’s not on sport setting.

Sounds like low pitch bubble popping from the exhaust. Any ideas?

AM340iMiami · 10-08-2024, 02:25 PM

People pay good money for those sounds.

shez1234 · 10-08-2024, 04:25 PM

Quote:

Originally Posted by AM340iMiami

People pay good money for those sounds.

Yeah it’s sounds alright, except I’m more bothered about if it is the head gasket or just an exhaust condensation thing

10-08-2024, 12:53 PM	#1
shez1234 Registered 2 Rep 6 Posts Drives: m340i Join Date: Jul 2024 Location: uk iTrader: (0)	B58 m340i exhaust bubbling Hey guys, Recently noticed a new bubbling noise coming from my m340i exhaust. Once engine is up to temperature it pretty much goes away. It’s different to normal exhaust sound and it’s not on sport setting. Sounds like low pitch bubble popping from the exhaust. Any ideas?
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10-08-2024, 02:25 PM	#2
AM340iMiami First Lieutenant 270 Rep 430 Posts Drives: 2020 BMW M340i Join Date: Dec 2022 Location: Miami iTrader: (0)	People pay good money for those sounds.
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