Kia Sorento: Compressor Oil Inspection

Oil inspection

•	Compressor oil is used to lubricate the compressor.

•	Since the oil circulates into the system during the operation of the compressor, the oil must be replenished to maintain the total capacity of the original oil when replacing the parts in the system or when a large capacity of gas is leaked.

Total capacity of oil in the system

Without rear A/C : PAG 100 ± 10 g (3.5 ± 0.35 oz.)

With rear A/C : PAG 190 ± 10 g (190 ± 0.35 oz.)

Kia Approved : FD46XG (IDEMITSU)

Compressor Oil Handling Tips

•	Prevent moisture, dust and metal particles from entering the oil.

•	Do not mix compressor oil.

•	If the oil is left in the air for a long time after using it, the oil absorbs moisture, so be sure to close the container immediately after use.

Compressor Oil Check and Adjustment

Oil return operation

(1)	Set to maximum cooling, blower speed, and run the compressor for 20 - 30 minutes to restore oil to the compressor.

Before putting oil into the compressor in use, the compressor oil must be checked in the following order.

(1)	Turn off the IG after performing the oil return operation.

(2)	Recover refrigerant by using the refrigerant recovery/recycling/charging machine. (Refer to Air conditioning System - "Refrigerant Recovery/Recycling/Charging/Vacuum/Leak Test")

(3)	Remove the compressor. ((Refer to Compressor - "Removal and Installation"))

(4)

Drain the compressor oil.

If the drained oil amount is below 70 cc the oil has leaked so perform a leak test.

(Refer to Air conditioning System - "Refrigerant Recovery/Recycling/Charging/Vacuum/Leak Test")

(5)

Adjust the oil level after checking the oil for contamination.

Replacement parts	Adjustment method
higher than 70 cc (2.47 oz.)	Add the capacity of the oil drained.
less than 70 cc (2.47 oz.)	Add 70 cc (2.47 oz.).

•	When exchanging a compressor replenish or drain oil according to the difference in weight between the old and new parts before installing it.

•	When the oil in the air conditioning system is insufficient the durability of the electric A/C compressor deteriorates.

•	If there is a lot of oil in the air conditioning system the performance of the air conditioning system deteriorates.

Oil filling when replacing the parts.

–	Oil replenishment is performed according to the weight difference between the old and new parts.

Perform oil replenishment by referring to the table below if weight comparison is not possible.

Replacement parts	Oil amount [cc (oz.)]
Evaporator core	50 (1.76)
Condenser	30 (1.06)
Receiver drier	30 (1.06)
Suction & liquid hose assembly	10 (0.35)
Discharge Hose	10 (0.35)

Components and Components Location Component Front Refrigerant Line 1. Expansion Valve1-a. 8.8 - 13.7 N·m (0.9 - 1....

Removal Suction & liquid hose assembly ...

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