By spending a small amount on an annual or bi-annual basis you are limiting the risk of having to find major fault.
Avoiding service costs can end up being a false economy.
Gas leaks naturally from all systems at 10-15% per annum. If this is left untreated, fuel economy is affected when the system is run. The compressor (which uses fuel) has to work harder to generate the correct temperatures when the gas level is low. This costs you money as it uses more fuel. In addition
What are the benefits of air conditioning?
Why does a car need an air conditioning recharge?
Your air conditioning system can lose up to 15% of its coolant every year, so a 3 year old car may have lost almost half its coolant seriously impacting on the performance of the system and damaging the components involved. You should regularly have the air conditioning systems serviced to reduce wear and tear on the components and help avoid potentially big repair bills
Vent temperatures and gauge pressures are checked against recommended levels.
A refrigerant identifier is used at this stage to verify system content.