The Alliance of British Drivers has recommended that drivers continue to use their car’s air conditioning during the winter season, despite the colder temperatures. According to the alliance, drivers should switch on their air con while driving for at least five minutes every fortnight to ensure that fluids are circulating properly and lubricants are functioning effectively. By following this practice, motorists can help maintain the resale value of their vehicle, the alliance emphasizes.
Additionally, the alliance has shared guidance on what to do if the air conditioning system stops working. They highlight that using the AC in winter can assist in demisting the windscreen more quickly by removing moisture from the air. This setting, combined with air recirculation, can also prevent outside odours and dust from entering the cabin, particularly when following farm vehicles or similar sources of odours.
Even if drivers rarely use their air conditioning, the alliance advises turning it on for a few minutes while driving every two weeks to keep all components in optimal condition. This practice helps in keeping fluids circulating, lubricants functioning correctly, compressor clutch and belts operational, and seals in good condition. The alliance dispels the notion that air conditioning is costly to run and adversely affects fuel economy. They recommend servicing or inspecting AC systems every two years to ensure proper functioning.
If the air conditioning system fails to cool effectively, drivers are advised to top up the refrigerant, taking note of the correct type and quantity specified in the vehicle handbook or under the bonnet. In cases where a top-up does not resolve the issue or the cooling effect diminishes rapidly, there may be a leak in the system, such as from a seal or due to damage from debris. Specialist assistance may be required to identify and rectify leaks, particularly with changes in legislation and refrigerant types used in older and newer vehicles.
For issues such as a malfunctioning pressure switch or fan dedicated to the AC condenser radiator, DIY solutions may be available through online resources or specialised technicians who can conduct pressure tests and detect leaks using UV dyes. The alliance acknowledges the reduced availability of specialists in AC system repairs due to regulatory changes and evolving refrigerant types. Adherence to regular maintenance practices and addressing malfunctions promptly can help drivers ensure their air conditioning systems remain in good working order throughout the year.