hi 3g00d,I first had the tranny rebuilt [2007]when I lived in SD, I then drove cross country to NY .
I had a lot of problem here with mechanics,and had a InDY here replace the coolant lines to the transmission radiator,the lines blew out , then try to fix it and put non OEM fluid,over time[a year] the year started to fail, I rebuilt to engine sooo I figure I have to fix the transmission too.
I am going a few more minor repairs and the that,s it for me. Really the biggest problem is have mechanics work on the car that are not certified bmw guys, leason learnt.