VW screwed the pooch when they moved to 0w-20, changed the oil pump and didn't properly adjust the VVT to operate correctly with it.
This is just round 2 of that fix. My car as delivered destroyed an O2 sensor, stalled and ran terribly. I moved to 5w-40 and didn't have anymore issues. I did take the first update, then I tuned the car, still run 5w-40, because I track in Florida. Being tuned now, I won't do the second update, but Florida doesn't check anything to register your car, it can have 1 lug on each wheel, a wheel missing, blowing smoke like an old steam engine, and no one cares.