If the car air conditioning is not cooling, the most common cause is too low a level of refrigerant in the A/C system. Over time, the refrigerant naturally decreases, causing a drop in pressure and weaker cooling or a complete lack of cold air.

Other possible causes include:

• leakage in the air conditioning system,
  
• incorrect pressure in the car air conditioning,
  
• compressor problems.
  

In most cases, simply refilling the car air conditioning using a car air conditioning refill kit is enough to restore its full performance – without the need to visit a workshop.

The choice between professional service and the FIXFY DIY car air conditioning refill kit depends on the situation, but in the vast majority of cases, FIXFY is a faster, cheaper, and easier solution for typical air conditioning problems.

When is it worth choosing FIXFY?

✔ when the car air conditioning is not cooling due to low refrigerant level

✔ you want to quickly and independently refill the car air conditioning

✔ you do not have specialized tools or access to a workshop

✔ you care about saving time and costs

FIXFY kits include a pressure gauge and hose, and the refilling process is simple and safe, even for someone without experience.

When is it better to choose professional service?

✅ when you suspect a serious mechanical failure (e.g., compressor, leak, damaged evaporator)

In most cases, refilling a car air conditioner yourself is not difficult and does not require specialized tools or a visit to a workshop. Modern air conditioning refill kits come with a hose and a pressure gauge, allowing you to monitor the pressure and safely replenish the refrigerant.

The whole process involves connecting the kit to the low-pressure valve and refilling the refrigerant to the appropriate level. This way, you can quickly solve the problem when the car air conditioner is not cooling or is working less efficiently.

In the case of serious mechanical faults (e.g., a damaged compressor), repair at a service center may be necessary, but in most situations, proper air conditioning refilling is sufficient.

Air conditioning leaks most often manifest as the car air conditioner stops cooling or loses efficiency shortly after refilling the refrigerant. If you need to frequently perform car air conditioning refills, there is likely a leak in the A/C system.

Typical symptoms of a leak:

• weaker cooling despite proper filling,
  
• rapid pressure drop in the system,
  
• greasy marks near hoses or connectors.

FIXFY products contain UV dye, which allows for quick and precise leak detection. After adding the product to the system and inspecting the installation with a UV lamp, the leak location is clearly visible, enabling effective sealing of the air conditioning system and preventing further refrigerant loss.

This makes it possible to locate the leak without dismantling parts and without costly diagnostics at a workshop.

Yes — the FIXFY products for automotive air conditioning refilling are compatible with most vehicles available on the market. It is essential to choose the appropriate version of the kit for the type of refrigerant in your car.

We offer two main product lines:

• FIXFY R134a – for cars with air conditioning systems operating on R134a refrigerant (most commonly cars produced until around 2016).
  
• FIXFY R1234yf – for newer vehicles equipped with R1234yf refrigerant.
  

With this, you can safely perform DIY automotive air conditioning refilling without a visit to the workshop.

What about specialized vehicles?

For trucks, agricultural machines, and special vehicles, we have prepared the FIXFY Truck & Agro line, designed for larger and more demanding air conditioning systems.

How to check compatibility?

To select the appropriate air conditioning charging kit, simply check the refrigerant label under the hood of the vehicle (R134a or R1234yf). This ensures the correct pressure in the A/C system and safe operation of the air conditioning.

The car air conditioning system should be checked at least once a year, preferably before the summer season. During this time, 10–15% of the refrigerant naturally escapes, which can cause weaker cooling and reduced efficiency.

It is recommended to perform a full air conditioning service every 1–2 years, including a leak check, pressure test, and if necessary, refilling the car air conditioning. Regular checks prevent compressor damage and costly repairs.

If you notice that the car air conditioning cools poorly, it is a sign that you should check the refrigerant level and, if needed, use the appropriate refill kit for the air conditioning.