Would anyone be able to tell me what the current ECU and transmission software versions are for a 2005 BMW X3, M54 engine, 3.0i? I would like to know if there is a more current version of either due to the overly-sensitive throttle response. The car cannot maintain a steady speed (it always accelerates/decelerates). I have confirmed this in INPA as well. When the pedal reaches 50.2% the car accelerates noticeably, and 49.8% noticeably decelerates – it is very difficult to maintain the speed without cruise control.
It looks like the ECU was updated once in 2007. I have attached screenshots of the information.