Nissan Rogue Service Manual: Oil

Nissan Rogue Service Manual / Ventilation, heater & air conditioner / Heater & Air Conditioning System / Periodic maintenance / Oil

Description

MAINTENANCE OF OIL LEVEL

The compressor oil is circulating in the system together with the refrigerant. It is necessary to fill compressor with oil when replacing A/C system parts or when a large amount of refrigerant leak is detected. It is important to always maintain oil level within the specified level or otherwise the following conditions may occur:

Insufficient oil amount: Stuck compressor
Excessive oil amount: Insufficient cooling (caused by insufficient heat exchange)

Oil Type: ND-OIL

Inspection

If a compressor is malfunctioning (internal noise, insufficient cooling), check the compressor oil.

1.COMPRESSOR OIL JUDGMENT

Remove the compressor. Refer to HA-30, "Removal and Installation".
Sample compressor oil and judge below according to the figure.

Compressor oil judgment

Judgement result 1>>Replace compressor only.

Judgement result 2>>Replace compressor and condenser (includes liquid tank).

Perform Oil Return Operation

CAUTION: If a large amount of refrigerant or oil leak is detected, do not perform oil return operation.

Start the engine and set to the following conditions:

Engine speed: Idling to 1,200 rpm
A/C switch: ON
Fan (blower) speed: Maximum speed set
Intake door position: Recirculation
Temperature setting: Full cold

Perform oil return operation for approximately 10 minutes.
Stop the engine.
Oil return operation is complete.

Oil Adjusting Procedure for Components Replacement Except Compressor

Fill with oil for the amount that is calculated according to the following conditions.

Example: Oil amount to be added when replacing evaporator [m (US fl oz, Imp fl oz)] = 75 (2.5, 2.6) + α

Conditions		Oil amount to be added to A/C system m (US fl oz, Imp fl oz)
Replace evaporator		75 (2.5, 2.6)
Replace condenser (includes liquid tank)		80 (2.7, 2.8)
Refrigerant leak is detected	Large amount leak	30 (1.0, 1.1)
	Small amount leak	—
Oil amount that is recycled together with refrigerant during recycle operation		α

Oil Adjusting Procedure for Compressor Replacement

Oil Adjusting Procedure for Compressor Replacement

New compressor
Old compressor
Recovery/recycling equipment
Measuring cup X
Measuring cup Y
New oil

Drain oil from the new compressor into clean container
Record amount of oil recovered
Install new oil equal to recorded amounts in measuring cups X and Y
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 HA-4, "Precautions For Refrigerant System Service".
Confirm refrigerant purity in vehicle A/C system using recovery/recycling equipment and refrigerant identifier.
If NG, refer to HA-4, "Precautions For Refrigerant System Service".
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.

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