Although the air conditioning/climate control system in your car is a closed system, approximately 10% of air conditioning gas permeates from the air-con system every year. This is why car manufacturers recommend your air conditioning system is recharged with refrigerant gas and lubricant every two years. This service is not part of routine mechanical servicing, so if your vehicle is more than two years old it’s probably due a recharge to regain its efficiency.
Aircon useless on a warm day?
On hot days, if your car's air-conditioning system only blows warm air, it's highly likely it is low on refrigerant, and the most likely because there is a leak somewhere in the system. On more modern vehicles, if the levels get to critical level they are designed to automatically shut down in order to protect the air conditioning compressor.
By performing a recharge using our gas recharge system we are able to test the complete system and recharge it with the required level of refrigerant as recommended by the vehicle manufacturer.
In hot weather conditions, switch your air con/climate control to recirculate mode to block the hot air entering the car and recirculate the cool air to be more effective.