Hi Steve, disconnect the dishwasher and I lay it on it's side. Remove bottom cover under door, two hidden screws in the plastic ends. Remove earthing wires by pulling clips. Remove sliding plate by pushing up to top and lifting the clips clear of the holes. Remove door springs. Take out six retaining screws, 2 on front and 4 on rear. Let the bottom come free and put to the side leaving the float switch etc still connected. You will now see the hose attached to the pump, release plastic clip using 2 small screwdrivers and take off hose. You will need to keep the ends etc. to put on your new hose. Reassembly is just the opposite of disassembly, remember the earth tags and be careful of sharp edges.
Good luck.
John Diamond, July 2008