Hi guys, just said i would update this post to let ye know we found the problem fingers crossed, brought it to another uncle of mine local mechanic (large family) and between him and another mecahnic over the road they diagnosed it as the temperature control switch it's a small green four pin plug that sits in the pipe the coolant runs through and is connected to the cars computer and was sending the wrong signals! It has not happened in two days so im hopeful the problem is fixed and it only cost €30. Apparently these switches cause a bit of trouble in skodas wolkswagens and seats!
Thanks for all your help.
Regards,
Jollyman