E46Fanatics - View Single Post - M54 intake noise, sounds like it's got bronchitis!

carl0s · 12-26-2011, 10:23 AM

What could this be?

It seems to be common, or perhaps even normal ? There's plenty of videos showing it on youtube.

I have replaced both intake hoses (hose from MAF, and lower elbow to TB).

The DISA is OK, and I also RTV'd it since the O-ring looks dead.

But basically it sounds like a person who's nearly dying in hospital after smoking 60 a day all their life.

Is it the design of the ICV ?

My last straight-six was a 2JZ-GTE in Supra, and you could barely tell it was running at idle.

The noise is quite similar to that of a worn out tensioner pulley, if that helps.

12-26-2011, 10:23 AM	#1
carl0s Registered User Join Date: Dec 2011 Location: Manchester, England, UK Posts: 19 My Ride: E46 330i, LS2 RX7 View My Garage	M54 intake noise, sounds like it's got bronchitis! What could this be? It seems to be common, or perhaps even normal ? There's plenty of videos showing it on youtube. I have replaced both intake hoses (hose from MAF, and lower elbow to TB). The DISA is OK, and I also RTV'd it since the O-ring looks dead. But basically it sounds like a person who's nearly dying in hospital after smoking 60 a day all their life. Is it the design of the ICV ? My last straight-six was a 2JZ-GTE in Supra, and you could barely tell it was running at idle. The noise is quite similar to that of a worn out tensioner pulley, if that helps. __________________ -- Carl