There is no need for "treatment" of Dakota leather. It is a coated and sealed leather. You only need to wipe it down with a cleaner. The more you treat it, the more you break down the top coat. Your seats have been cleaned and treated improperly, plus the drivers seat is a little stretched out. All of my BMW's with the Dakota leather look like new and have only been wiped down with a damp cloth or lexol cleaner diluted as the instructions state.
http://www.autopia.org/forum/autopia...ditioning.html