I see a lot of people (especially in the summers) that have their cars parked and have their AC running for long periods of time like half an hour.
Does this badly impact the engine or what other problems can it cause?
It does not effect much if ur car is equipped with original ac or not heavier than the required one .it only makes the car engine lil hot more frequently
No issue unless u have some problem in cooling system or main power plant.
local mechanics keep shouting "khari hui gari me AC chalao ge to kharab to hogi hee" and stuff..
it does not effect