Common mistakes reduce car air‑conditioning efficiency

Experts warn that using a vehicle’s air‑conditioning system incorrectly can lower cooling performance, raise fuel consumption and cause maintenance issues. Typical errors include turning the system to maximum cooling immediately after the car has been exposed to strong sun, running the compressor at full power for extended periods, and keeping the recirculation mode on for too long. Drivers are also advised to ventilate the cabin by opening doors or windows before activating the climate control, replace cabin air filters regularly (often around every 15,000 km), and avoid leaving the system on when the vehicle reaches its destination to prevent moisture buildup that encourages mold and bacteria. Proper use and routine service prolong the unit’s life and improve comfort.