Exhaust noise

Odaveplz · 05-12-2022, 01:54 PM

Hello. New here, searched this but found nothing. My 2011 328 (88k mi) developed an exhaust noise recently, best described as sounding like a bunch of pennies caught in it under acceleration. It also occurs upon startup. I found nothing loose externally. Anybody have a similar issue? Thanks in in advance

Phil325i · 05-12-2022, 02:07 PM

If it's not a loose heat shield then it's probably a baffle breaking down. I'd get under the car with a rubber mallet and see if you can replicate the noise by hammering on the exhaust...

05-12-2022, 01:54 PM	#1
Odaveplz Registered 0 Rep 1 Posts Drives: 2011 e90 328i x drive Join Date: May 2022 Location: Pearl River NY iTrader: (0)	Exhaust noise Hello. New here, searched this but found nothing. My 2011 328 (88k mi) developed an exhaust noise recently, best described as sounding like a bunch of pennies caught in it under acceleration. It also occurs upon startup. I found nothing loose externally. Anybody have a similar issue? Thanks in in advance
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05-12-2022, 02:07 PM	#2
Phil325i Brigadier General 615 Rep 3,194 Posts Drives: E92 325i MSport Coupe Join Date: Apr 2012 Location: UK South East iTrader: (1) Garage List 2009 BMW 325i Coupe [6.00]	If it's not a loose heat shield then it's probably a baffle breaking down. I'd get under the car with a rubber mallet and see if you can replicate the noise by hammering on the exhaust... __________________ E92 pre-LCI 325i - Ohlins R&T; H&R spacers; M3 strut brace; Swift thrust sheets; 3 x chassis braces; diff brace; N53 V-brace; 034 subframe inserts; BMS clutch stop; BMS CDV; RE g/box mounts; Delrin shift bushes; Saikoumichi OCC; Cyba scoops; BMW Perf Exhaust; HEL s/steel brake hoses; M3 rear spoiler; Recaro Sportster CSs; M3 white dash LEDs; LED Angels; LED side repeaters; BMW Perf black grille; CSL reps; SSDD carbon diffuser; Monster Wrap black roof/clear front
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