Its definalty standard, i think all audi's have it now, not just the S3.
I had a A4 Avant 2.0 FSI courtesy car the other day and tried it and it worked..
By the way the 2.0 FSI engine felt good only in first gear, after that it was sluggish until it had reach 100+.. It had only done 1700 miles, maybe i was expecting too much