Kwik Fit offers charging or free air conditioning services: you will only pay if the car coldest vent temperature increases by more than 10% when measured in degrees Celsius. Please note that if the ambient temperature around the car is less than 9°C, it may affect the Air-Con charging test results. In this case, the manager decides whether to provide a refund. Air-Con repair warranty is 12 months or 12,000 miles, whichever comes first.