Hi Simon/Aero250
I have now found a diagram with the location of the the engine thermostat, & looks to be an easy enough job
With respect to the OBD reader, good call. I have one so I'll see if I can get a temp readout which will enable me to see running temp & allow it to run up. Can anyone support the approx 108 deg C cut in temp as Aero250 suggests?
Thanks for all help so far, including Alastair
Ian