Hi All after 7 and a half years of many happy times I'm selling my Loyal 99 S3 and have put a deposit down on a 2007 A3 2.0l TDI 170 Quattro Sportback with 45k. I just have a couple of points i'm sure someone can help with.......... What is the cambelt interval for the 2.0l tdi?? Does the rear diff oil require changing and if so what are the intervals?? Any othe advice or things to check?? Like don't fill it up with super unleaded lol Just trying to make sure stuff is done so i don't get straight into servicing bills after buying it. Any advice appreciated!!!!