Checking the tightness of the system (Hyundai Tucson LM)

In all cases where a refrigerant leak is suspected or work is performed involving disconnecting components or loosening connections, perform a system leak test using an electronic leak detector.

Note: To use the electronic leak detector correctly, it is recommended to read its instructions.

1. Check the tightening torque of the pipe connections. If the tightening torque is loose, tighten the connections to the specified torque. Use a leak detector (A) to make sure there are no gas leaks.

2. If the leak is not eliminated after tightening the connection, discharge the system, disconnect the connection and check the sealing surfaces for damage. Even slightly damaged connection parts must be replaced.

3. Check the amount of compressor oil and restore it to normal if necessary.

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4. Charge the system and check for leaks. If no leaks are found, vacuum purge and charge the system.