nowt major, just sounds a bit lumpy at tickover,got small leak on a vac pipe not sure if thats causing it or wot. Sometimes get slight rumble, could be tyre noise of maybe something a bit maore serious ie 4wd assy? but it could just be my "wots that noise" paranoia! Dont wanna take to vw and they plug in and say " puter says no" , as ive already done that!