I have this code "4FD0 Position Specification" immediately after starting the engine. I originally thought that I had cooked the electronics so I replace it with the one from the used transmission that I got and get the same error. Since I keep hearing that it has to be coded, I had someone virginize it and code it (took almost two hours) remotely. Start the car and get exactly the same error. The only I didn't replace are the solenoids. Tested resistance and they are all within specs.
I have put about 5 quarts of oil but since it won't go into gear I can finish the filling procedure.
Anyone out there had this happened to them? I just ordered a set of ZF solenoids to replace then anyway but I even took the transmission to a person that builds ZF for modified engines and he said all of the mechanical work was ok. He didn't had a way to check the electronics.
Ideas? I'm getting tired of paying for a rental (two months so far!) since my older BMW is in the middle of an engine rebuild which hasn't been getting attention because of the E70 transmission.