Karan, I had complained of AC issue from the 1st week of purchase and there where series of testings, gas refills etc where done, but none of them came anywhere close to satisfaction. During May/June 2010, i came to know that FIAT has worked upon a solution that would fix the AC performance issue. It was understood that ECU has been remaped to have late cuttoffs and the ac pipes where to be shielded by some metal foil for reducing the loss of cooling while transporting across. I went to dealer, and like yours, even my SA was white as egg on this matter, he had no clue, mailed around FIAT company and finally the SA got some understanding of what to be done. Problem was that no body knew how to upgrade ECU, so they keep fooling around me for around a month. Finally some sweet words to the ears of all and the company decided to send a new ECU which has been updated from factory to solve the problem. Along with ECU came a thin metal pipe, which the installer at service center made a vertical slit and pipe was now more like aluminum foil, then he made small pieces of foils, went underneath the car and tied those pieces of foil on various AC pipes with some plastic band. To me all of it look very flimsy and never believed that it would even help 1%. And I was true on my common sense Bigger task was replacement of ECU and getting car started. ECU was replaced, but car didnt start, service team again turned into egg, called up various person in FIAT, but no help, so came up with ecu examiner and played some hola ho..click, click, click...doesn't work, restart with no idea what need to be done, they probably tried all possible clicks to get some kind of permutation and combination, and god knows what all kind of stuffs got auto configured, factory resets and what not. Finally it was like "Eureka" 1.5hrs and engine somehow decided to start, in next 10 mins I was handed over the car Took a test drive, with thermometer placed on AC panel, previously it was stuck at 14-16C now it did came down to 9-10C, probably it was a cool day. Had no option they said its working fine, i have to move out with it. Next day the back seat passenger had same complain again AC is not doing the job as expected ...and there on its still the same way. :uh :uh Coming up is part 2 update from FIAT, a new AC kit, i hope this helps, otherwise this summer i wont have this car for sure. :thumbs down :thumbs down My nano does 10 times faster and better cooling than Linea .