I would like to know if anyone can help me with this problem. My 2000 740iL will not catch reverse gear when it is warmed up unless I step on the gas as I am putting it in gear, even than it comes out of gear after a few seconds. I have to rev the engine to get it to move every slowly. It does not do this when it is cold. I had the transmission fluid changed now I am not sure it this guy put the correct fluid in the car. I really need elp on this one. I hope someone has some idea what this could be?