| Evacuate the refrigerant circuit with the A/C service station |
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| Before the refrigerant circuit is filled with refrigerant, it must be evacuated. In addition, humidity is drawn from the circuit. |
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| Depending on the type of the selected A/C service station, variations can occur in the work procedure. |
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| The work procedure must always be carried out as described in the operating instructions of the selected A/C service station. |
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| When evacuating and if vacuum is present in the refrigerant circuit, the engine must not be started. |
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| If the engine is started when vacuum is present in the refrigerant circuit, the compressor can be damaged. |
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| Connect the A/C service station to the service connections according to the relevant operating instructions (see refrigerant circuit specifically designed for vehicles) and operate it. |
| If the vacuum in the system does not remain when evacuating (see instructions), the following must be done: |
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| Pour 100 g of refrigerant into the refrigerant circuit, use a leak detector to detect leaks and eliminate them. |
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| Evacuate the refrigerant circuit once again. |
Note | Only if the vacuum stays steady, the refrigerant circuit can be filled. |
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