How to Clean the Car Air Conditioner?

[DelJayden]

Detailed steps for cleaning the car air conditioner: 1. First, locate the air circulation inlet connected to the vents, which is usually positioned on the right side at the base of the windshield or beneath a central cover panel. 2. Set the air conditioner to maximum fan speed and switch to external circulation mode. 3. Use your hand or a screwdriver to open the inlet cover panel. 4. Attach the nozzle provided with the cleaning agent and spray into the inlet, pausing for a few seconds before spraying again to allow for circulation rather than continuous application. The blower will draw the cleaning agent into the ducts. Change the circulation mode to ensure all ducts are cleaned. 5. After 15 minutes, turn off the air conditioner. The cleaning agent will flow out with the condensate from the drain. Once no more condensate exits the ducts, turn on the warm air to evaporate any remaining cleaning agent inside the air conditioner, and leave the windows open for a while. 6. The car air conditioner cleaning is now complete.

[McGemma]

Cleaning the car's air conditioning system yourself is quite simple. First, get a set of AC cleaning spray, which costs just a few dozen yuan and is available online. Start the engine, turn on the AC to the coldest and strongest setting, close the doors and windows, and let it run for a few minutes. Locate the cabin air filter position under the glove box, remove it for inspection, and replace it directly if it's too dirty. Then spray the cleaner into the air vents evenly without overdoing it, wait about ten minutes for the foam to dissolve the dirt. The fan will expel dirty water during operation, so wipe the vents clean with a cloth. After finishing, reinstall the filter and run the heater for a few minutes to eliminate odors. This method can remove about 80% of odors and bacteria, saving money and giving a sense of accomplishment. Cleaning the AC in summer makes driving much more comfortable, and it's recommended to do it every six months to prevent mold in the AC system.

[MacDakota]

As a parent who drives my kids to school every day, I pay special attention to the air quality inside the car. Cleaning the air conditioning system is essential. Prolonged use of the AC can breed bacteria, causing unpleasant odors and affecting respiratory health. For DIY cleaning, prepare a regular household disinfectant spray and a brush. Start the car, turn the AC to the maximum fan speed in external circulation mode. Gently spray the disinfectant into the air vent gaps, letting the airflow naturally carry away dust and germs. Focus on cleaning the air intake near the glove compartment and the filter—replacing the old filter directly is more convenient. If you don’t want to do it yourself, spend around 100-200 yuan for a professional deep cleaning at a shop. They use specialized equipment to thoroughly clean the evaporator. After cleaning, test the system by switching to internal circulation to check for any lingering odors, reducing allergy risks and maintaining a fresh interior, which is also better for the kids.

[MacChase]

After driving for many years, I've developed a habit of regularly cleaning the AC, which is very practical. If the AC odor is severe, it must be cleaned, or the smell can be unbearable. Buy a bottle of specialized cleaner for a few dozen bucks, and it's done. Start the car, turn the AC to maximum cooling, and set the fan speed to the highest. Locate the glove box, remove the AC filter, and check if it's dirty—replace it if necessary. Spray cleaning foam into the air vents, wait for the foam to dissolve the grime, then use the fan to dry it and wipe the vent surfaces. Remember to clean it every three months or whenever you notice an odor. Use the recirculation mode less often to reduce mold growth. This way, the AC won't get clogged, the airflow stays strong, and long drives are much cooler.