Checking And Adjusting
WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
If excessive oil leakage is noted, do not perform the oil return operation.
Start the engine and set the following conditions:
Test Conditions
- Engine speed: idling to 1, 200 rpm
- A/C switch: ON
- Blower fan speed: HIGH
- Temperature control: optional [set so intake air temperature is 25° to 30° C (77° to 86°F)]
- Intake position: RECIRCULATION mode
- Perform oil return operation for about ten minutes
Adjust the oil quantity according to the following table.
Oil Adjusting Procedure for Components Replacement Except Compressor
After replacing any of the following major components, add the correct amount of oil to the system.
AMOUNT OF OIL TO BE ADDED
| Part replaced | Oil to be added to system | Remarks | ||
|---|---|---|---|---|
| Amount of oil m l (US fl oz, Imp fl oz) | ||||
| Front evaporator | 75 (2.5, 2.6) | - | ||
| Rear evaporator | 75 (2.5, 2.6) | - | ||
| Condenser | 75 (2.5, 2.6) | - | ||
| Liquid tank | 5 (0.2, 0.2) | Add if compressor is not replaced. | ||
| In case of refrigerant leak | 30 (1.0, 1.1) | Large leak | ||
| - | Small leak (1) | |||
|
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Oil Adjustment Procedure for Compressor Replacement
- Before connecting recovery/recycling equipment to vehicle, check recovery/recycling equipment gauges. No refrigerant pressure should be displayed. If NG, recover refrigerant from equipment lines.
- Connect recovery/recycling equipment to vehicle. Confirm refrigerant purity in supply tank using recovery/recycling equipment and refrigerant identifier. If NG, refer to "CONTAMINATED REFRIGERANT ".
- Confirm refrigerant purity in vehicle A/C system using recovery/recycling equipment and refrigerant identifier. If NG, refer to "CONTAMINATED REFRIGERANT ".
- Discharge refrigerant into the refrigerant recovery/recycling equipment. Measure oil discharged into the recovery/recycling equipment.
- Drain the oil from the "old" (removed) compressor into a graduated container and recover the amount of oil drained.
- Drain the oil from the "new" compressor into a separate, clean container.
- Measure an amount of new oil installed equal to amount drained from "old" compressor. Add this oil to "new" compressor through the suction port opening.
- Measure an amount of new oil equal to the amount recovered during discharging. Add this oil to "new" compressor through the suction port opening.
- If the liquid tank also needs to be replaced, add an additional 5 m (0.2 US fl oz, 0.2 Imp fl oz) of oil at this time.
Do not add this 5 m l (0.2 US fl oz, 0.2 Imp fl oz) of oil if only replacing the compressor .