Well, popped into Fiat dealer to see about the wiring loom modification part & got the shock of my life. The original part no 51786225 has been superseded by part no 71777054 & is no longer made by Fiat. The price has rocketed to £54 but I found an original part on ebay for £19. Item no 171657555230. Genuine Fiat part too.
Got a service done today. Spark plugs are a pain to get to but all the rest was good. No rusty sump, bonus. ECP didn't have the rear wiper blade so ebay came up trumps again at £4.30. Changed the battery as the previous (or dodgy garage) had stuffed a 063 batter in the tray. Pressure washed the engine as there is a slight oil leak from the rocker box seal. So now just waiting on parts to finish. Next will be the MOT & repaint of the hatchback top. The lacquer has lifted & the paint is shot.