I've done a search but couldn't find exactly what I'm looking for. At what mileage/time does the cam chain need replacing on the A3 3.2? I've been told by a private seller of a 3.2 that he checked with his local dealer and they told him they never need changing; they last the life of the engine. Been told by another private seller every 80k miles / 5 years and told by another private seller that his local Audi dealer said the 75k miles / 5 year rule is only for Audi's with cambelts and the 3.2 is different (although he didn't give a mileage/time). I've rang an Audi dealer before myself and he said 75k miles / 5 years. Anyone actually know? Also whilst here, can anyone give me a rough price Audi charge to change a timing chain? Thanks!