Hi im looking to purchase the said A3, 120k miles, 2 previous owners, says FSH, rang the guy up today (hes selling for his sister) and asked if the haldex had been serviced etc, and he couldn't find anywhere to say that it had. I now have 3 questions. 1. the haldex would be under a different name or anything like that, or written in a particular way that he didn't recognise? 2. If it has no haldex history, should i be looking at a different car? (presuming the quattro DOES work) 3. When i go to view it, how would i know if the quattro is actually working? Thanks guys, im hoping to finally join the forum with my own audi, and want to make sure i get something good! JJ.