Wow !.., this is great info.
Just purchased a used 08 M3 and I have a few things that are bugging me. I found an SIB for the rear cluncking.., LBBMW said it was normal.., guess i need to give them the SIB #. Why didn't they look it up for me ? The other issues are trans rattle at idle with pedal out, and a higher pitch knock that keep time with the rpm. The sound is similar to it needing a valve adjustment like on older engines. It's easiest to hear in 3rd around 3200-3500 rpms, and seems to be louder in normal driving mode, non sport and non M. I haven't been able to find bulletins on either of these.
Any help is appreciated. The Warranty is up in March of this year !