Hi, there are notes between pages one and two that state

“ Once normalization has been learned (learnt)...then the auto-up/auto-down should be initialized. The procedure below is written for the "rocker/toggle" window switches before BWM switched to the "flip-up/push-down) type installed in the e53...just extrapolate the open & close position of the old switches to the new type for reinitializing the e53's window switch:”

So, I understand it to be the auto up/down in a single switch was not available in the e38 e39 models. Those models I believe had one switch for each. That is the only difference.