Evaporator provides cold air to the car’s air conditioning system. In this part, the refrigerant turns into a gaseous form to create the cooling. It is why a leak in this part leads to a leak of the refrigerant vapor. Other signs of bad AC evaporators can be air coming from the vents, unusual noises from the system, etc. Replacing this part can be a labor-intensive task because it lies in the dashboard of the car. The average lifespan of an AC Evaporator is about 10-15 years. For a better lifespan of the evaporator, we suggest using it for few minutes a day even if there is no need according to the weather.