18 months ago I had a some corrosion appearing, not a problem I called Audi and the fixed it in no time at all. Now other parts are corroding, front and rear wheel arches and the drivers door. Not a problem I thought as the warranty will cover it as before. Prior to taking it to Audi I went past a few independant body shops and all of them said they had never seen it as bad as this before and it is definatly a problem with the car body. Called Audi and they told me to take it to their body shop. I told them I had taken it round some independant body shops and they all told me it is a problem with the car. His reply was they can not tell what the cause is with out doing tests on the paint and that it is more likely to be from stone chips. Took it up to the Body shop that does the work for Audi and before he even got right up to the car he told me there is a common problem with the inner plastic wheel arch cover, it rubs on the lip of the wheel arch and wears away the zinc protective layer exposing the steel. He asked if it had a full Audi service history and when I told him I do not get Audi to service it he told me Audi will not do anything. (Note: no tests on the paint) A couple days later Audi UK called me and told me the claim was rejected because I am not loyal to Audi, I thought this was strange as I have had an Audi for the past 10 years, he explained I did not buy the car through an Audi dealer and do not get it serviced by Audi therefore I am not loyal. If I did get it serviced by Audi they would have done regular inspections on the body and repaired the corrosion when they noticied it. I tried to explain the fact that Audi inspected it 18 months ago with a similar problem which is sooner than if it was on a long life service. This was blanked. He obviously did not have a answer for this. I told him what the body shop said and he started to get annoyed that they had told me this. I also told him that the car has a 12 year warranty and it does not make a difference if I buy or get it serviced from Audi. I also mentioned that it is against the law to force customers to get their car serviced by the manufacturer. He then goes and tells me the car has a 4 year paint warranty and it would not be covered. Don't know what part of corrosion he did not understand. As I was getting no where I asked him for the inspection report on why the claim has been rejected, he advised that Audi do not give out reports and if I wanted a report I would have to go to the body shop. I was getting a bit annoyed at this point. I told him Audi gives the warranty not the body shop and it is Audi's responsibility to explain why the claim is rejected. His reply to this was Audi has not inspected the car so can not give a report. I told him to take my car but apparantly they do not do any inspections!!! After telling him again that it is Audi's responsibility he told me I was talking to the wrong people 'we are Audi Uk and your car was built by Audi Germany'. He then had the cheek to tell me the case will now be closed. Basically if you do not buy the car from an Audi dealer and get it serviced by Audi the warranty is worth nothing. If this was any other industry they would be out of bussiness by now. I believe Audi's are better than other German cars but needless to say after this I won't be getting another.