Diagnosing the heater problem was, er, easy….
The heater matrix / radiator has been bypassed and a small section of steel pipe inserted in its place. I don’t think I’ll bother testing for leaks! So I need to order one of those and the flexible hose from the blower under the wing. There are a few slight leaks in this hose 🙂 I will remove the whole assembly and give it a good clean, treat the rust with my fave stuff ‘Fertan’ and paint. These are the sort of jobs that I enjoy, and can be done any weather – Sunday afternoon, shed, coffee, roll-ups, Radio 4, what better way to forget work….
I noticed on my first trip that the temperature gauge hardly moved. I have just read this blog post that recommends using the sensor from a 200tdi Range Rover so I will also order part no. AMR1712 – hopefully the easiest fix yet.