Quick update:

BMWNA is still silent. The lawsuit was filed mid Sept.

Traveling home tonight and the reduced power flashed up on the idrive. Managed to get home without issue and pulled the codes. POcb and 429A. One is the MAF sensor, it appears and one is the large turbo boost problem. Still searching for the code descriptions and others who may have had this problem with theirs.

Back to the shop again. yippy......

funny thing, as I was driving along to work this morning I thought it was just about time for it to break again. Typically we go 6-8 weeks between major repairs. It didnt disappoint on the way home. LOL