My wife's car is now three months out of warranty and has always been serviced by the supplying Audi dealer at the correct times. It has done less than 25000 miles. I had occasion to drive it last week and noticed a noise that I thought was wheel-related. My wife took it in (having been warned of a £60 cost if nothing found) and the mechanic who rode on test with her agreed wheel-related. However on the ramp they then said it was the gearbox and they found metal debris in the oil. Again we were advised that it would be £480 for them to take it apart and confirm the problem before discussion with the manufacturer. With seemingly no choice in this we agreed. The outcome is that a reconditioned gearbox has been fitted at no additional charge but we still have to pay for the "investigation." Again we agreed but my wife has just had a conversation with a neighbour who is a Citizens Advice worker and was told that we should not have to pay the £480 as the car was unfit for purpose. As it is out of warranty, albeit not by much, I'm not sure that is correct but thought I would seek your advice on this and would appreciate your opinion.