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      05-02-2012, 10:42 AM   #47

Drives: 2011 ZCP M3 - 2007 335i crashd
Join Date: Apr 2009
Location: NYC

Posts: 6,777
iTrader: (4)

This car has a noisy valve train..what is being described here doesnt sound like knock..the ECU is very careful to pull timing to avoid knock conditions and if you are stock will almost certainly not happen (assuming you are using proper octane)

I have this noise and other e92 M3s I have been in do too.