Thanks Antiburn, that's exactly what I saw. No wet spots under the car, just some dried blue deposits. The guy at the service dept. said as much but they want to fix it themselves rather than give me an o-ring. Oh well, I'll just set up an appointment and drive a loaner for half a day. Break my heart! Please don't throw me in the briar patch! Don't make me drive another BMW! AARRGH!