hi all, recently my viva aircon air become small already...but it`s still cold..because the air is small so it takes long time to cold the vehicle...i take to aircon man to check...he ask me what age of my car, i said around 7 yrs edy...he said if such an old car the cooling coil probably is time to RIP...he charge me rm850 for change cooling coil + open dashboard cleaning etc...i wonder my aircon ia still cold, is that necessary to change the cooling coil? He said if dunwan change just service also can RM350... wat u guys think?