TC, I have had a go at following these instructions
https://the75andztclub.co.uk/forum/s...ght=diagnostic
First time I have ever tried to go to diagnostic mode.
My engine was cold as it has been standing for a few days. My outside temperature was showing 7.5 when not in diagnostic mode, in diagnostic mode section 7 my coolant showed as ---000 I would have expected similar to 7.5.
Is 000 what you would expect on a cold engine?
macafee2