well tempature rising thing can be ccontrolled very easily but AC is not as good as civic or corolla otherwise its good. AC really works cool on long routes but its just ok in city. Just remove the metal plate inside the grill of mehran which is fixed to save the head and the temperature problem will be fixed I did it with my brother's mehran and it does not have any problem now (I am talking about the crystal lights wala model dont know about rest) over all ac is not that bad as people will explain here and it works perfectly ok with cng nothing wrong but obvisouly car gets very sluggish