the only bimmers to worry about over filling the ps is ones with hydro boost instead of vaccum for the brakes, that can cause the brakes to lock up during extended use like sitting in traffic with your foot on the brake, for those cars, with the engine off mash the brake 20 or more times to purge the stored pressure, then fill the tank till fluid is about 1" from the top or about even with the bottom of the screen (as in you can bearly see it)
all america wants is cold beer warm cat and a place to take a poop with a door on it