Leaking Or Damaged Components, Replacing, Filled Refrigerant Circuit Except A/C Compressor

WARNING: This page is about a different car, the 2022 Volkswagen ID.4 and 2021 Volkswagen ID.4. However, it is still accessible from the selected car via links, so may be relevant.

Refrigerant circuit still contains refrigerant (for example, with minor leak)

If the gas cooler, dryer or heater core is replaced, the amount of refrigerant oil present in the refrigerant circuit must be determined by cleaning the refrigerant circuit. Refer to REFRIGERANT CIRCUIT, CLEANING .
If multiple refrigerant circuit components are replaced together, the amount of refrigerant oil present in the refrigerant circuit must be determined by cleaning the refrigerant circuit. Refer to REFRIGERANT CIRCUIT, CLEANING .

-- Discharge the refrigerant circuit. Refer to WORKING WITH A/C SERVICE STATION .

-- Remove the malfunctioning component, flush with compressed air, collect escaping refrigerant oil and measure it.

-- Assemble the refrigerant circuit, evacuate, fill and add the determined amount of refrigerant oil. Refer to WORKING WITH A/C SERVICE STATION .