Thank you for your prompt reply to my query above. As I said the speedo and sat nav are converted already to kph but not sure if this will change all the settings on the onboard trip computer to kilometres settings. Can you clarify please ? This is a UK registered car originally imported to Ireland hence the need to change over all settings. Sorry for repeating myself but your help is greatly appreciated.
Just in case anyone asks in future, this change is not possible on a non-UK spec car like mine. It seems to be a requirement for UK cars (in miles) to be able to convert for continental use, but not vice versa. I can't see Renault saving a ton of money by leaving it off.