Hello, Are there any resources to figure out what a particular software version does? I keep reading about software updates that reduce pop and crackles. The K309 SW number does not seem to match the sequence of versions I am seeing in my long press valet mode menu.
I still have my pops and crackles and I'm thankful for that.

 

I think that's the infotainment software, not anything to do with engine management.

 

That does makes sense.