I have an '86 528e Auto that has been sitting outside for some time. I started it up one day and put it in drive. The car would not move. I thought maybe the brakes were rusted and that's why it wouldn't move. I put my foot in the gas and the rear would squat down, but still wouldn't move. I pulled the rear wheel off on the drivers side and was able to remove the pad from the rotor, but it still wouldn't move. The other rear wheel is hard to get to where the car is parked so I haven't tried to do anything on that one yet. If the passenger rear pad is stuck to the rotor, would that prevent me from turning the other wheel since the pad is free or is there something else I should be looking at that would prevent the rear wheels from moving? And yes, the car was in Neutral. Any advice would be very helpful.

Thanks,

Danny