Hi Guys

All now fixed and we have power seats again. It was of course the relay and I resoldered 6 bad joints.
For those people following this thread who have UK cars the relay is mounted close to the steering column on the A post side so you have to remove the 5 screws holding the front section of the underdash/front of dash and drop it down then remove the fusebox cover and it will be visible beside the column on the back of the firewall.

So where will I have to look next for dry joints?

Thanks for your help.

Gerry