Simon, my local dealer is Lifes Motors in Southport.

TBH, I didn't like the quote they've given me already for the 5000mles service(750GBP) scared
I've also heard that on the S3, the oil filter can be changed without taking the wings off...
I get pretty paranoid with dealer servicing, I rather change the oil&filter myself, use only one of the best oil around(Silkolene ProS), and leave the difficult jobs to the dealer...