wiper delay operation

After having my BMW for almost 7 years I still can't figure out how to operate the F@%&ing wiper delay feature. Its either a very short delay or a long delay.

Piece of cake! From the "OFF" position, move the lever briefly up to the first "ON" position and back to "OFF". The next time you move it back to "ON" is what your delay time will be. Just leave the lever in that position. ON--OFF--count to five--ON (or something like that). Oh, you have to be moving too when you set it, as a different automatic wiper delay takes over at the stop lights. Yes, it took me quite a while to figure it out too, especially when I messed with it while I was stopped. Good luck.