I am replacing the radiator on my 2000 E430. The transmission fluid on this car has never been changed so I thought I would take this opportunity to change it. I've read the maintentance threads on ATF change and was wondering if I could hook up one of the transmission cooler lines I removed from the radiator to an air compressor and the other one to a waste container and get most of the ATF out without removing the pan. Does anyone know if this would work or if any harm would be done? Thanks for any advice you could give.