How to Make Your Car AC Colder: Tips and Tricks

Driving in a hot and humid weather can be uncomfortable, especially if your car’s air conditioning system is not functioning well. If you’re wondering how to make your car AC colder, you’re in the right place. In this blog post, we’ll share some tips and tricks to help you improve your car’s cooling system.

1. Check Your Refrigerant Levels

Low refrigerant levels can affect your car’s air conditioning performance, causing it to blow warm air instead of cold. If you suspect that your refrigerant levels are low, it’s best to have them checked by a professional mechanic. They can add more refrigerant if needed and fix any leaks in the system.

2. Clean Your AC Filters

Dirty and clogged air filters can block the airflow in your car’s AC system, making it harder for it to cool the air. To improve your AC’s performance, make sure to clean or replace your filters regularly. This will not only make your car AC colder but also improve the air quality inside your car.

3. Use a Sunshade

Parking your car under direct sunlight can heat up your car’s interior, making it harder for your AC to cool it down. To prevent this, use a sunshade to block the sun’s rays from entering your car. This will help keep your car’s interior cooler and reduce the workload on your AC system.

4. Park in Shaded Areas

If you can’t find a covered parking area, try to park your car under a tree or in a shaded spot. This will also help reduce the amount of heat that enters your car, making it easier for your AC to cool it down.

5. Use the Recirculation Mode

The recirculation mode in your car’s AC system can help make your car AC colder by recycling the cool air inside your car. This mode can be useful when driving in traffic or in hot and humid weather. However, it’s essential to use this mode sparingly to avoid reducing the air quality inside your car.

6. Turn Off Your AC Before Turning Off Your Car

Turning off your car’s AC before turning off your engine can help prevent moisture buildup inside your AC system. This can help reduce the chances of mold and mildew growth, which can cause foul odors and affect your AC’s performance.

7. Use Your AC Regularly

Using your car’s AC regularly can help keep it in good condition and prevent malfunctions. If you don’t use your AC for a long time, the seals and pipes can dry out, causing leaks and reducing its performance.

8. Upgrade Your AC System

If your car’s AC system is old and outdated, it may be time to upgrade it. Newer AC systems are more efficient and can cool your car faster than older models. Consult with a professional mechanic to help you choose the best system for your car.

9. Avoid Overloading Your Car

Overloading your car with passengers or cargo can put a strain on your AC system, making it harder for it to cool the air. Try to avoid carrying unnecessary weight in your car and distribute the load evenly to maintain your car’s balance and comfort.

10. Close Your Windows

Keeping your windows closed while driving can help maintain the temperature inside your car and improve your AC’s performance. Open windows can let in hot air and reduce the efficiency of your AC system.


Having a well-functioning car AC system is essential for your comfort and safety, especially during hot and humid weather. By following these tips and tricks, you can make your car AC colder and improve its performance. Remember to have your AC system checked regularly by a professional mechanic to prevent malfunctions and ensure optimal performance.