Outstanding Wally! I have been hoping to see a post like this one.
MIne is a 2000 X5 4.4i. Lucky to get it in great shape with all Dealer/Warrantee maintenance by-the-book. Been doing the 100K mainteneance in affordable chunks.
I did just change the trans oil & filter - getting some quirkiness when the fluid is cold, less when its warm. I have owned & operated many automatic transmissions over the years. Never had one be so fussy about a fresh dose of premium grade fluid

($15/quart) & a nice new filter. So, thought I would search for Transmission posts to see what is out there.
I too have benefitted greatly from this site; so went "Premier" this year to say thanks to Webmasters & Moderators who manage this great resource.
Best to you Walley...
Skidmark X5