Oh my god, this is a baptism of fire and frustration. So far the entire interior has come out, seats, carpet, underlay, console and central console face and rear armrest- which I planned to replace anyway, then found a coolant leak on one of the pipes that run internally from the engine to the heater.
So far the gear lever mech, heater control pod, cross member thingy support behind it, srs unit, a mass of wires that are routed in between various pipes, nooks and crannies. Small floods of coolant that decided to wait until I put my head just where it run anywhere a towel had not been laid. Then finally accessing the pipes in the engine bay, found that the only way to remove the old pipes was to angle them up into the dash, into the heater vent and remove the rubber pipes from the end. Finally the faulty one is out. Dread revering the process, but very grateful for David's how to pipe layout diagram as the carefully marked notes telling me which rubber pipe was fitted to the correct metal pipe was rubbed off during the battle to disengage each other.
Really, were the Rover engineers who designed these cars on drugs?! They really couldn't have made the design more complicated if they tried!
Anyway, deep breath and cup of coffee in hand - question to the sane.... The old pipes contained a load of rust and debris, which is floating around the system. Should I flush the system out, and does anyone recommend a particular flush to use? Any pointers and advice on the procedure would be appreciated.