5 year update!

Almost exactly five years and 80,000 miles later I have had no trouble with my Xdrive transfer case since I wrote the original DIY. I never bothered to reset the adaptation values so I think I've proved you can safely skip that step if you prefer. I now have 170,000 miles on my 2004 E53 X5 3.0 and it is still going strong. I just ordered one liter of Xdrive fluid and I will be doing my second fluid change within a couple of weeks. I will take a shot of the old fluid again and post for all to see.