nah man, its not a big deal i guess, take it easy.... normally 1000 cc cars ACs tend to lose their performance in such hot weathers, especially if the car is in idle position (my Cultus EFI also performs well when running on the road, but when standing idle in the sun, the AC says...let the car run first man..jaldi kya hai thanda honay ki :P). so much so, in idle position even the 1299 cc cars ACs just dont perform that good (i have personally experienced that in a friend's Honda City 2010) it was standing in the sun, and when i sat in car with the friend, we are sweating in the car with the AC running at its max