Can car air conditioning be directly refilled with refrigerant without vacuuming?
2 Answers
If the car air conditioning only needs a refrigerant top-up, vacuuming is not necessary, and the refrigerant can be added directly. However, if refrigerant needs to be added due to an air conditioning leak, the leaking part must first be repaired, and the system must be vacuumed before adding refrigerant. Otherwise, the presence of air in the system will prevent the refrigerant from being added. Here’s an introduction to car air conditioning: The car air conditioning device (air-conditioning-device), commonly referred to as car AC, is used to regulate and control the temperature, humidity, air cleanliness, and airflow inside the car cabin to optimal conditions. It provides a comfortable environment for passengers, reducing travel fatigue, and creates favorable working conditions for the driver, playing a crucial role in ensuring safe driving as a ventilation system.
As a long-time driving enthusiast, I strongly advise against skipping the vacuuming step and directly adding refrigerant. The car's air conditioning system is like a cleanliness freak—it can't tolerate any impurities. Air increases system pressure, reducing cooling efficiency, while moisture is even worse, freezing the expansion valve at low temperatures and directly blocking the pipes, causing the system to fail. Skipping the vacuuming step allows air and moisture to mix in, accelerating component corrosion, increasing leakage risks, and shortening the compressor's lifespan. The result? A weak AC, strange noises, and potentially costly repairs. The safe approach is to have a professional shop use a vacuum pump for at least 30 minutes to ensure proper vacuum levels and test for leaks before adding the right amount of refrigerant. This ensures smooth, worry-free operation and extends the system's lifespan.
