How to Replace Car Air Conditioning Refrigerant?

[DiKira]

Replacing car air conditioning refrigerant involves the following steps: 1. Install a manifold gauge set to perform vacuum extraction; 2. Install the refrigerant canister; 3. Charge refrigerant from the high-pressure side, then close the valve after charging; 4. Use an electronic leak detector to check for system leaks; 5. Open the manifold gauge set to charge refrigerant from the low-pressure side; 6. Close the valves on both high and low-pressure sides when replacing the charging canister; 7. After replacement, open the purge valve to release air from the middle hose and manifold gauge set; 8. Check the refrigerant charge amount based on the pressure displayed on the manifold gauge set; 9. Once the refrigerant charge meets requirements, close the low-pressure side valve and turn off the engine.