I have been reading up on this difficult procedure. Haynes manual is confusing as it refers mainly to series II cars and I don't know if series III heating set up is the same. Jagbits tech page 1 offers a short cut but I am not clear on some of the steps. Eg: "disconnect steering column at lower mounting point". Does the steering wheel need to come off first or does it come out as a unit? Also, it states, " carefully cut heater pipes as close to the steel side panel and the coolant temp sensor as possible" Where is the coolant temp sensor and which side panel? Is this a valve, or is that the vacuum valve on the firewall in engine compartment? I need to have a working heater/defroster and can't replace the carpet until the leak and rust is repaired. Is there a manual specific to series III that would be helpful in this case? Anyone with expertise in this matter? Many thanks for any input.
Dan
Dan