04 745Li Transmission Problem
I too have an 04 745Li with V8 and 6 speed transmission. I purchased the car in Aug of 06and have been fighting the 5th gear issue as you've described for about 3 years (it was intermittent). The dealership has been working on this problem since Jan 07'. Reset the trans twice, then reprogrammed it along with a complete drive train inspection filter change, etc. Now the stutter problem has gotten worse and spread to 4th gear along with hard shift in upper gears. Now BMW tells me the transmission needs replaced (metal in the fluid). Car is out of warranty now and BMW won't participate. They said I am the second owner, so they won't cover it. I feel your pain.