Why do Auto Manufacturers recommend that your car or 4WD should have an air conditioning service at least every two years?
A car air conditioner works just like a refrigerator in that a refrigerant gas is compressed to a liquid which passes into an evaporator whereupon the liquid expands into a gas and extracts large quantities of heat energy from the surroundings. In a vehicle the heat comes from the air in the cabin and cools the cabin. Unlike a refrigerator which will operate for many years, a vehicle air-con experiences a lot of movement and seals will over time leak some refrigerant. As the refrigerant gradually leaks out the Air-con becomes less effective and the system requires a re-gas.
Fourbys Moorooka is licenced to service motor vehicle air conditioners and can test if your system is operating efficiently.