Duke

Hi all Been with the Audi brand for years now and traded my wifes A1 in for an S1(for her ....aye right). I drive an A5 cab which I have just changed. I had a 1.8 TFSi A5 cab but just changed it to an A5 2.0 TDi 177 m-tronic special edition (sepang blue). Question on the quattro on the S1. It seems to stutter when moving out from parking with a slight lock on the steering. It's like the quattro is engaging on the front...any thoughts?