In March, I bought a low-mileage (10,000) 2013 Porsche Boxster from a Porsche dealer, including - what I thought was - a rock-solid two year warranty. Initially, I didn't use the air-con (to save fuel) but when I tried it for the first time on a wet day - on 10 June - I realised that the air-con wasn't working at all. On my return home on 14 June, I reported the problem to both the supplying Porsche dealership and also my local Porsche service centre. I booked the car in as soon as possible for the work to be done, on June 27 - 28, on the assumption that a repair would would be fully covered by the warranty. I was then told that there was stone damage to one of the condensers which had disabled the air-con. I had no option but to pay the bill, just over £700. My perception is that I was sold a car without working air-con. The service dealer regards this as ‘external damage’ and therefore not covered by the warranty. The salesman was sympathetic but referred to the comprehensive pre-delivery check that the car had passed just before I bought it in March. As a gesture of goodwill, he has offered to pay 50 per cent of the bill but that still leaves me £350 out of pocket. Am I likely to be able to recover my loss or is this the best I can hope for?