Kia Optima PHEV 2017 HR 13

Best Products To Fix Leaks In Car Air Conditioner

If you’ve ever hopped back into your hot and stuffy car on a scorching summer’s day, only to be greeted with a blast of warm air from the vents of your car’s air conditioner, you’ll know how important it is to keep the system running smoothly. There’s nothing worse than suffering through a long car journey in suffocating air while sitting on uncomfortable, sticky leather seats. If your car’s air conditioner has broken down, you’ll want to get it fixed as soon as possible. You might consider taking it to a professional mechanic, but if you want to troubleshoot and attempt fixing it yourself, this guide will help you determine what’s wrong with the system and offer some products that will help you fix it and prevent future problems. We’ve used Supercool products in this guide as examples of the best and most varied products available on the market. Supercool is widely trusted as one of the more reliable makers of AC products.

Kia Rio 2016 SR7 1.25 HR 7

How Does It Work?

Before you start tinkering with your car, you must have a basic understanding of how the air conditioning system works. There are four major parts of the system (in most vehicles), which create a loop through which refrigerant is moved. Refrigerant is a mixture designed to change its physical state depending on how pressurized it is. When it changes its physical state due to increased or decreased pressure, it also changes temperature, thus allowing the air coming from the vents to cool. These are the four components of the system that work together to physically change the refrigerant.

1. Compressor

The compressor turns the refrigerant into a hot liquid by adding pressure and compressing it to a smaller size.

2. Condenser

The condenser is made up of a series of coils that cool the refrigerant by drawing in outside air.

3. Expansion Valve

The expansion valve, sometimes called an orifice tube in some models, works by restricting the flow of refrigerant. The expansion valve turns the mixture into a low-pressure mist before it enters the evaporator.

4. Evaporator

This mist enters the cold tubes of the evaporator, creating the cold air that comes from the vents into your car.

Sprung A Leak?

Leaks are a common problem within this system. Because the refrigerant is being pushed through the system and a variety of high pressures, it’s easy for the seals holding the mixture in to wear down over time. Even the smallest gap can result in your refrigerant escaping. The wrong amount of refrigerant will compromise the entire system, thus resulting in warm air or weak airflow coming from your vents.

Products For Identifying A Leak

Determining if a leak is the issue can be tricky. Because refrigerant evaporates into a vapor at low pressure, once it leaves the air conditioning system, it’s invisible to the human eye. Unlike other leaks, you won’t find any puddles or residue under the leak. To detect the leak, you’ll likely need to use a UV dye to make it visible.

The r134a leak sealer from Supercool is a wonderful product that contains UV dye to help locate the leaks in your system. It can even stop small leaks itself, so the system can be fixed quickly and painlessly. This product also contains anti-wear additives that will reduce friction and extend the lifespan of your compressor.

Total Leak Stop with U/V Dye & “HFC Free” Applicator 1 another Supercool product that contains UV dye for easy leak detection. This product comes with an HFC-free aerosol applicator for easy use. Also, because it doesn’t contain polymers, it’s safe for use in almost any A/C system and won’t cause any clogging or contamination.

A final useful product that contains leak-detecting UV dye is the PAG oil 46 viscosity. This is essentially a lubricant designed to improve the lifespan of your compressor by reducing wear. Because it contains UV dye, it will also keep you alerted to any leaks in the system.

Products For Fixing A Leak And Preventing Further Issues

Fixing a leak can be an arduous and lengthy process involving dismantling the whole system, purchasing and installing new o-rings, and recharging the system with new refrigerant. If you’re dealing with a fairly small leak, these products will help to stop the leak in a much simpler way.

The R-134a Refrigerant with Leak Stop is an excellent refrigerant to use if you’re worried about leaks. Safe for almost any system, this refrigerant will stop most small leaks and will help extend the compressor life.

Alternatively, try the R-134a with Performance Booster and Leak Sealer for an even more effective refrigerant. This refrigerant will not only help small leaks, but it will also improve the entire A/C system by cleaning and lubricating all four components. This will result in even colder, stronger air for your car.


If you’re dealing with a leaky air conditioner in your car, many products can help you find and fix the leak and also prevent it from happening again in the future. Supercool is a great company that has all the products you need. Visit to view more products that are not listed above.

Using Supercool’s products in your car’s A/C system will immediately improve its performance. These products are designed to lubricate and protect the parts in the system to ensure optimal performance and durability. All of their products are tested and certified by many international standards, including SAE, ASTM, DIN, FZG, and ISO, so they are guaranteed to be some of the best on the market. Not only that, their products are biodegradable, so you don’t have to worry about creating harmful waste. Taking care of your car’s air conditioning system may seem like an unnecessary hassle, but you’ll thank yourself in the future when you sail through the whole summer without any unexpected hot and stuffy car trips.

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