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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

 
 
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Old 12-26-2011, 11:23 AM   #1
carl0s
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Join Date: Dec 2011
Location: Manchester, England, UK
Posts: 29
My Ride: E46 330i, E60 545i
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.
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