Common Mistakes That Destroy Your Car's AC in Summer – Avoid Them

Common Mistakes That Destroy Your Car's AC in Summer – Avoid Them

Technology
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Jun 29, 2026 06:39 PM

As intense heatwaves continue to sweep across the region during the summer season, a car's air conditioning system transforms from a simple comfort feature into an essential component for safety and focus while driving, especially during peak hours and long road trips. However, the surprising truth is that certain daily habits, combined with neglected periodic maintenance, can lead to a noticeable drop in cooling performance or even sudden failure of the entire system without the driver even realizing it.

Filter and Radiator Maintenance: The First Line of Defense

Automotive experts emphasize that preparing the air conditioning system before heavy summer use plays a vital role in maintaining cooling efficiency and extending the lifespan of the compressor and other system components. Topping the list of essential steps is cleaning or replacing the cabin air filter, as accumulated dust inside the filter restricts airflow, reduces cooling efficiency, and releases air laden with dust and unpleasant odors. Experts also recommend regularly inspecting and cleaning the radiator, since dirt and insect buildup on its surface weakens the cooling process and may cause hot air to blow from the AC vents, particularly during extreme heat.

Refrigerant and Air Ducts: The System's Core

Checking the refrigerant level is one of the most critical procedures that should never be overlooked, as low refrigerant directly results in poor AC performance. For this reason, it is best to have the inspection carried out at a specialized service center and to refill the system with the type of refrigerant recommended by the manufacturer when needed. Additionally, cleaning the air ducts and ventilation channels is a crucial step, because accumulated moisture inside them can lead to unpleasant odors, mold, and bacteria growth. Dedicated cleaning products can be used to maintain clean, fresh air inside the cabin.

Proper Operating Habits: From Start to Finish

Experts advise running the air conditioning periodically even during mild weather, at least twice a month, to keep the compressor in good condition and prevent seals from drying out or dust from building up inside the system. Before turning on the AC in extremely hot conditions, it is recommended to open the car windows for a few minutes to expel the hot air from the cabin, then gradually activate the air conditioning. This practice helps speed up the cooling process and reduces strain on the system. Using the recirculation feature inside the cabin also helps lower the load on the AC and accelerates reaching the desired cooling temperature, especially when driving in urban areas or during peak heat hours.

It is also advisable to use sunshades on the windshield when parking the car in open areas, as they reduce the cabin temperature and help keep the car cooler for longer, easing the burden on the AC system when restarting. Ultimately, neglecting these simple tips can lead to costly repairs, potentially requiring a full compressor replacement. Following these guidelines ensures a cool and safe driving experience throughout the summer.