Well Shifty I am not on anything. The instructions on my 1988 735i do call for pumping the brake about 20 times and the level in the reservoir does rise after you do that. Since the systems seem to be similar, I followed the same procedure for my 1999 745i. Maybe the pumping does not have to be done, because this newer car does not have the bomb accumulator as the older one. The 745 book does not call for the pumping of the brake, but to be on safe side I do it anyway. All I can say is that you may not know everything, so I suggest you do not disparage others.
I also check on the type of ATF fluid to use, my old BMW called for Dexron type only. As with all free advice one gets, you are still on your own - who do you trust? I do not recall if the 745 book specifies the type of ATF fluid, but If I were you I would call a dealer and ask him about that.
Another thing, I see people referring to this accumulator being on the right hand side of the car. I guess that is all a matter of perspective, but drivers in the USA sit on the left side of the car and that is the side where the reservoir is located. I would suggest using that as a reference so as to not confuse people.