Stupidly I took my Nissian Note 62reg to Kwik Fit to have the air con regassed. Ever since we drove out of the garage the air con will be coldish for about 10 minutes and then it blows warm/hot air through. Having just spent an afternoon at Kwik Fit they have now said I need a new Air Conditioning compressor at £700. They didn't get any readings up on the computer to support this but one of the mechanics did force a part (maybe a switch) at the bottom left side of the engine which then made the air con come out cold. I have seen from other people's post they have experienced similar problems but haven't read anywhere what the solution was. Please could someone advise me? Many thanks.