Michael Lloyd

I have had my etron from new and had an issue with a radiator. Audi advised me that m warranty was null and void as their computer is telling them that I had a performance enhancing chip fitted and now it has been de-activated. The car has only ever been in an Audi Garage and I have no idea why they are telling me this is the case. I just wondered if anyone else has had any experience of it. Thanks,