Hey minicoop, don't let these old geezers scare you!
Young people working on cars is one of the things that gives me hope for humanity!
And, if anybody wants to change the fliud in their tranny they should just do it - especially if its "lifetime" seems to be up.
Here's how to do it - and it does not look to me like there is any way of stirring anything up in the process if you look at it.
http://www.pelicanparts.com/bmw/tech...Fluid_Auto.htm