From now on I shall hopefully not have to wriggle under the car in inconvenient places anymore- fingers crossed!
With this problem sorted, in true VW fashion, another oddity has occurred- sigh. The engine now does not idle, however some good guys over on the VolksWorld forum have given me some advice as to what it could be. Hopefully it is just in need of a bit of a tune up- which it is probably due for to be honest!
Anyway, we shall see what this is going to bring in the near future!