BMW 3-Series (E90 E92) Forum - View Single Post

LastGray · 07-14-2023, 12:06 PM

Mine has been making the siren noise for over a year, strangely only after installing a larger intercooler and charge pipe. Less apparent when the car is fully warmed up. On MHD St1+. No codes.

07-14-2023, 12:06 PM	#31
LastGray New Member 8 Rep 18 Posts Drives: BMW 335i E90 Join Date: Jul 2021 Location: South East Asia iTrader: (0)	Mine has been making the siren noise for over a year, strangely only after installing a larger intercooler and charge pipe. Less apparent when the car is fully warmed up. On MHD St1+. No codes.
	Appreciate 1 studio54218.50 Quote