So the
dealership on route had a look and suggested it was due to damp in the sensor where the car had been stood around for a while so quickly cleaned/dried it and cleared fault. When the car was on my drive after checking it all over I said I just want to start it and have a quick drive round the block for piece of mind following the error which the guy was fine with but as soon as I started the engine the warning light was back on.
After a number of phone calls etc discussing options I was basically left with two options. 1) he drives it all the way back to york so another 300 miles on the clock supplying dealer then repair it in x days and then wait x days for a new delivery slot. He then drives it back by which time the car has close to 900 miles on it before i've even driven it which I was not happy with. 2) I reluctantly accept it and take it myself to local dealer to resolve the issue.
I went with option 2 and have a new complaint open with Seat UK now. Car is currently booked in for Monday for them to take a further look at the sensor and possibly order replacement part advising they might need the car a couple of days. And to top things off no courtesy cars available till April.
For those interested the error is "P2031 Exhaust Gas Temperature EGT Sensor"