they are like any car, have certain things that break and certain things that dont. having baught two b6s over 60k miles, i say go for it. just look over the car well. i mean everything. check the window switches, sound system, start it and listen for noises, drive it, check the sunroof switch, carfax it for accidents, ect ect.
common things that go wrong with our cars around this mileage include but are not limited to: coil packs, electrical things like window and sunroof switch, my motormounts in my old b6 went around 75k.
also make sure maintenance was done correctly. if you dont already know, the 1.8t engines were warrentied for sludge problems because of audis original recommendations for oil changes. also they just put out a timing belt recall, which wont help you at all because they just tell everyone they need to change it so they dont have to warrenty it. certain years have certain other recalls. i believe there may be a fuel pump recall on 03s (not positive) and 02s have a recall for the air plenum clogging near the brake booster.
didnt mean to write a book lol, basically just look the damn car over real well and ask questions. if you do this well i dont think you will be disapointed.
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