AC Tips & Tricks
Ethan Sullivan
| 21-05-2025
· Automobile team
We've all experienced those hot summer days when the heat seems unbearable, and the only relief comes from our car's air conditioning system. But how well do we really understand how this system works and how to maintain it?
Keeping our car's AC in good condition can save us from expensive repairs and ensure a comfortable ride. Let's take a look at some tips and tricks for using and maintaining our car's air conditioning system.

1. Regularly Use the AC System

One common mistake we make is letting the air conditioning sit unused for months, especially during the cooler seasons. However, it's important to run the AC for at least 10-15 minutes once a month, even during winter. This helps the system remain lubricated and ensures that all components continue to function properly. If we let the system sit unused for too long, it can lead to damage, such as the compressor losing its efficiency.

2. Clean the Air Filters

Just like any other filter in our car, the air filters in the AC system need to be cleaned or replaced regularly. A clogged filter can cause reduced airflow, making it harder for the system to cool the car effectively. It can also result in unpleasant odors. If we notice any strange smells, it's a good sign that the air filters need attention. Make sure to clean or replace them every 12,000 to 15,000 miles, or as recommended by the manufacturer.

3. Check the Refrigerant Levels

The refrigerant is the heart of the air conditioning system, responsible for cooling the air inside the car. Over time, the refrigerant levels can drop, leading to less efficient cooling. If we notice that the AC isn't cooling as well as it used to, it could be because of low refrigerant levels. We can get the refrigerant checked and refilled at a mechanic's shop to ensure that the AC is working at its best.

4. Use the Recirculation Mode

We all know that the air conditioning cools the air by pulling in air from outside. However, the air outside can be hot, especially on sunny days. To improve cooling efficiency, we should use the recirculation mode. This mode recycles the air inside the car, making it easier for the AC to cool. It's especially useful when driving through areas with heavy traffic, where the outside air is often polluted or very warm.

5. Don't Overcool the Cabin

It can be tempting to crank the AC to full blast when it's scorching outside, but overcooling the car can actually cause more harm than good. First, it can put unnecessary strain on the AC system, reducing its lifespan. Second, constantly adjusting the temperature from very hot to very cold can make the cabin uncomfortable. Instead, try to maintain a moderate temperature that feels comfortable without overworking the system.

6. Check for Leaks

One of the most common reasons for AC system failure is leaks in the refrigerant lines. Over time, seals and hoses can degrade, causing refrigerant to escape. If we notice a lack of cooling or the air smells musty, it could be a sign of a refrigerant leak. To avoid further damage to the system, it's important to have the AC checked by a professional as soon as possible. They can repair leaks and recharge the system with refrigerant to get it working like new.

7. Don't Leave the AC Running After You Park

While it may seem like a good idea to leave the AC running for a few minutes after we park the car to cool it down, it can actually cause strain on the system. Constantly running the AC while the car is off can also drain the battery. Instead, we should turn off the AC a few minutes before we park and let the car naturally cool down.

8. Use Window Shades

One way to reduce the load on our car's AC system is by using window shades when parking in the sun. These shades block out sunlight and help to keep the interior of the car cooler, so the AC doesn't have to work as hard. This simple step can make a big difference, especially during the summer months.

9. Get Professional Maintenance

While we can do a lot of basic maintenance ourselves, it's important to get the AC system professionally inspected every couple of years. A professional mechanic can check for any underlying issues, such as leaks, compressor problems, or worn-out components, and fix them before they cause more significant problems. Regular checkups can extend the life of the AC system and keep it running efficiently.

Final Thoughts

Maintaining our car's air conditioning system is essential for staying cool and comfortable, especially during the hot summer months. By following these simple tips and scheduling regular maintenance, we can avoid costly repairs and ensure that the AC system lasts for years to come. Lykkers, what steps do you take to keep your car's AC in top shape? Share your tips with us, and let's make sure we all stay cool on the road!