Thank you for responding. I have not already found my answer, and so I still need assistance, please.
Thank you for such a comprehensive answer.
Yes, please could you try and locate an independent Jaguar specialist for me, as offered? I live in Maidstone, Kent, and would be prepared to take the car for a day to anywhere within about 50 miles radius (i.e. in Kent, East Sussex, West Sussex, Surrey, London S, SE, E, and Essex).