Hi Franco Kenjo here, I am a Bosch service engineer and pull these out all the time, the only fixings are the ones i described in my last post. You said turning the middle nut tilts the machine FORWARD turn it the other way so it tilts the machine backwards ie lowers the back of the machine and it should come out unless the fitters have added their own unorthodox screws. The 12" thin bars you describe with a flat on one end and a plastic socket on the other end are the rear feet adjusting bars for fitting an integrated FRIDGE and not to do with this dishwasher. Cheers
Kenjo
February 2015