About s/w upgrades

[///Bruce]

My 2002 X5 4.6 goes into the shop next Monday. Does anyone know if I should ask them to lay down the latest and greates version of both engine and transmission s/w for my ride?

I've read somewhere that some upgrades have been made for the tranny(?). But, I'm not sure of the year of the vehicle.

Since I'm a new owner/driver, would it pay to reset everything so it now can learn my style of driving?

I have noticed she's running VERY rich. It would be for this reason alone that I would consider upgrading the engine s/w from someone like Euro-whoever. My thoughts are that any tweaking would, if anything, lean out the engine a little. And, by default, not only give me a little more HP but a little better mileage efficiency.

Anyone?