Ugh.... I'll report my findings when i test next time I ride. I'm going to do my part and keep complaining to the dealer about any issues the bike has. BMW needs to hear us.
Today I put a strip of tape over front intake to confirm that those pops are indeed backfires. My experience in the past when tuning point EFI cars (basically a carb with EFI jets) is that backfires like these could potentially burn the air filter if a flame front gets high enough up the intake runner -- although these don't seem that bad.Yes. With the air intake display as well.
This is all because the ECU is trying to ignite unspent fuel in the exhaust manifold to get heat in the cats. Every US bike must run the same catalytic heating procedure, so I can't imagine why only some bikes are affected. I can't imagine this being only a software issue.