How to clean a car aircon system

Your step-by-step guide

A car’s air conditioning (AC) system is essential for a comfortable driving experience, especially during the hot summer months. However, over time, dust, mould, and other contaminants can accumulate within the system, leading to unpleasant odours, reduced cooling efficiency and potential health hazards.

Regular maintenance, including cleaning the car’s air conditioning, is crucial for optimal performance and air quality. In this comprehensive guide, we’ll walk you through the step-by-step process of cleaning your car’s AC system to ensure it operates efficiently and keeps the air inside your vehicle fresh and clean.

Step 1 – Gather necessary supplies

Before you begin cleaning your vehicle’s air conditioning system, gather the following supplies:

• Air conditioning cleaner solution
• Vacuum cleaner with a brush attachment
• Microfiber cloth
• Disposable gloves
• Mask (optional but recommended)
• Screwdriver (if required to access air filters or vents)
• Disinfectant spray (optional)

Step 2 – Prepare the vehicle

Park your car in a well-ventilated area, preferably outdoors. Open all the doors and windows to allow fresh air to circulate through the cabin. If your car has a cabin air filter, locate and remove it according to your vehicle manufacturer’s instructions. This filter may need to be replaced or cleaned separately.

Step 3 – Clean the interior vents and surfaces

Use a vacuum cleaner with a brush attachment to remove dust, dirt and debris from the interior vents and surfaces. Pay close attention to the vents located on the dashboard, near the windshield, and in the rear of the vehicle. Use a microfibre cloth afterwards to wipe down each surface with a noncorrosive cleaning solution, including the dashboard, console, and door panels to remove any remaining dust or grime.

Step 4 – Apply air conditioning cleaner to air intake vent

Next, locate the air intake vent for the AC system, typically located near the windshield or under the hood. Follow the instructions on your air conditioning cleaner solution and apply it to the intake vent. Be sure to wear gloves and a mask to protect yourself from exposure to chemicals. Allow the cleaner to penetrate the system for the recommended amount of time (usually around 10-15 minutes).

Step 5 – Turn on the air conditioning

After the cleaner has had time to work its magic, start the car, turn on the air conditioning system and set it to cool at maximum speed. Let the AC run for several minutes to circulate the cleaner throughout the system. This process will help eliminate foul odours and improve the overall air quality inside the vehicle.

Step 6 – Replace or clean the cabin air filter

If your car is equipped with a cabin air filter, inspect it to see if it needs to be replaced or cleaned. A dirty or clogged air filter can restrict airflow and reduce the effectiveness of your car’s AC system. For many cars, the cabin air filter will be located behind the glove box (though placement can vary). Refer to your vehicle’s owner’s manual for guidance on how to access your filter. .

If the filter is reusable, you can clean it by gently tapping it to remove dust and debris, using a vacuum cleaner or by blasting it with air). Spray with disinfectant afterwards for good measure.

Alternatively, if your filter remains dirty even after a clean, you can easily replace it entirely. Definitely replace your cabin air filter if you are due for a change per your vehicle’s service interval

Other auto air conditioning parts may need replacing too − a specialised technician can help you with this.

Step 7 – Disinfect the interior 

For an extra layer of cleanliness, consider using a disinfectant spray to sanitise the interior surfaces of your car, including the steering wheel, door handles, and armrests. Pay special attention to high-touch areas that may harbour germs and bacteria. Allow the disinfectant to air dry completely before closing the doors and windows.

Step 8 – Regular maintenance

To keep your car’s air conditioning system in top condition, make cleaning it a part of your regular maintenance routine. Aim to clean the AC system at least once or twice a year, depending on your driving habits and environmental conditions. Additionally, replace the cabin air filter as recommended by the manufacturer to ensure optimal airflow and air quality.

DIY vehicle air conditioner clean vs professional clean

DIY air conditioner cleaning can be a cost-effective solution for those who are hands-on. With readily available cleaning products and basic tools, you can remove dirt, dust, and debris from the unit’s filters, air intake vents, coils, and fins. Regular DIY cleaning can help maintain the efficiency of your AC system and improve air quality. However, it’s essential to follow proper safety precautions and manufacturer guidelines to avoid damaging the system.

On the other hand, hiring a professional air conditioner cleaning service offers convenience, expertise and a more extensive clean. Professional technicians have the training, experience, and specialised equipment necessary to thoroughly inspect and clean your car’s AC system, identifying any potential issues and ensuring optimal performance. They have the qualifications and know-how to take your system apart to deep-clean those hard-to-reach places and can provide recommendations for preventive maintenance, addressing any underlying problems before they escalate. While professional cleaning may involve an upfront cost, it can save you time and hassle in the long run, prolonging the lifespan of your vehicle’s air conditioner while improving its efficiency.

Choose professional car air conditioning system cleaning from Natrad

When it comes to maintaining your car’s air conditioning system, opting for professional cleaning services from Natrad ensures thorough and effective results. With years of experience and expertise in automotive cooling systems, Natrad technicians are equipped with the knowledge and specialised equipment necessary to clean and optimise your car’s AC system.

From removing dirt and debris to disinfecting vents and components, Natrad professionals prioritise both performance and air quality, ensuring a comfortable and healthy driving experience. For more information on our car air conditioning services, contact us today.