Right, bought a spares or repairs 02 '52' 325Ti Sport Auto and few weeks back and it started and drove but needed some TLC. I wanted to charge the battery so i disconnected the terminals and left it over night, in the morning i came to the car and it wouldnt start. The dash would light up but had no 'P' in the gear section on the dash. We tried bridging the starter and nothing so i took it off and and tried it on the bench and it worked so i built it back up and still nothing. I checked all the fuses and nothing, i ordered a genuine new key and still nothing. I got my mate from the dealership to come out and have a look and the only thing that we could see was "starter motor blocked due to p n", after doing a bit of research some say it was the sensor on the side of the box so i found a really cheap box on Fleebay so i tried switching the sensors and that didnt work, i changed the gear selector and still nothing. Tonight i switched the boxes around and still nothing, what am i missing!!! Any suggestions would be greatly appreciated as i am running out of ideas.