Changed my thermostat, What a b**ch of a job, have to take alternator off, loads of other bits. But got it changed, seems to be working now after my over heating issues, fans kicking in when they should etc. Will take it for a steady drive tomorrow see how it is.
On a side note, since diconecting the battery i now have the ECP light lit. Car feels and drives fine though so may just need a code reset. Justa shame no-one in Leuchars (scotland) with VAG com