Originally Posted by duaux
PS. In my opinion, I believe that is a SCREW up on BMW's end for not changing their power steering cap to have the permanently etched 11S on it. Putting a cheap sticker over existing ATF caps is just careless cost saving measures
Welcome to the world of automotive design. They probably had an engineering change on fluid type part way through testing and already had a large run of caps ordered/made. Or they had a whole bunch of left over caps from a car that uses ATF. Stuff like this happens all the time, and not just to BMW.