Regular servicing is important to maintain your air conditioning system working effectively, as up to 15% of the refrigerant gas will be lost annually from a nominally gas-tight system.
Service air-conditioning units every 30,000 miles or two years to avoid costly repairs.
Air conditioning has been rapidly standardised over the last 10 years due to the major enhancement it brings to passenger comfort. However, drivers are only just realising that air conditioning systems do require regular maintenance. Vehicle air conditioning systems will tend to lose refrigerant over time as refrigerant permeates through the physical joins between components. Over time this will cause deterioration in performance.

Worse still, if you leave air conditioning operating with low refrigerant levels more serious problems can occur, lubricant circulation may be affected and air or moisture may enter the system.