Operation CHARM: Car repair manuals for everyone.

Refrigerant Oil







REFRIGERANT OIL CAPACITIES






COMPRESSOR OIL DRAIN PROCEDURE - DENSO 6SEU16 VARIABLE DISPLACEMENT

CAUTION: Be certain to adjust the refrigerant system oil level when replacing an A/C compressor. The refrigerant oil in the Denso 6SEU16 A/C compressor can only be drained using the procedure described below. Failure to properly drain the refrigerant oil from the A/C compressor can prevent the A/C system from operating as designed and cause serious compressor damage.

If the Denso 6SEU16 A/C compressor is being replaced, some refrigerant oil must first be drained from the new A/C compressor. The 6SEU16 A/C compressor is filled with 100 milliliters (3.4 oz.) from the factory. Drain 60 milliliters (2.1 oz.) of refrigerant oil from the new 6SEU16 compressor. Use the following procedure to drain and measure refrigerant oil from the Denso 6SEU16 A/C compressor.





1. Place the new A/C compressor (2) on a workbench and remove the drain plug (1).

CAUTION: The 6SEU16 A/C compressor is filled with 100 milliliters (3.4 oz.) from the factory. Drain 60 milliliters (2.1 oz.) of refrigerant oil from the new 6SEU16 compressor when replacing only the compressor.

NOTE: When replacing multiple A/C system components, see to the Refrigerant Oil Capacities chart to determine how much oil should be removed from the new A/C compressor (example: new 6SEU16 compressor and accumulator requires 60 ml. (2.1 oz.) of oil to be added to the system. 100 ml. (3.4 oz.) of oil is in new compressor. 100 ml. (3.4 oz.) minus 60 ml. (2.1 oz.) equals 40 ml. (1.4 oz.) oil to be drained from new compressor).

2. Position the A/C compressor so that the refrigerant oil can drain out of the drain port into a suitable clean measured container. Hold the A/C compressor in this position until the required amount of refrigerant oil is drained from the new compressor.

CAUTION: Failure to properly adjust the refrigerant oil level prior to installation of a replacement compressor can prevent the A/C system from operating as designed and cause serious compressor damage.

3. Reinstall the drain plug. Tighten the drain plug securely.
4. Install the new A/C compressor onto the engine A/C Compressor - Installation.

COMPRESSOR OIL DRAIN PROCEDURE - DENSO 10SR18 FIXED DISPLACEMENT

CAUTION: Be certain to adjust the refrigerant system oil level when replacing an A/C compressor. Failure to properly drain and measure the refrigerant oil from the A/C compressor can prevent the A/C system from operating as designed and cause serious compressor damage.

The Denso 10SR18 A/C compressor is filled with refrigerant oil from the factory. Use the following procedure to drain and measure refrigerant oil from the Denso 10SR18 A/C compressor.

1. Position the A/C compressor so that the refrigerant oil can drain out of the suction and discharge ports into a suitable clean measured container. Hold the A/C compressor in this position until all of the refrigerant oil is drained from the new compressor.
2. Drain all of the refrigerant oil from the new A/C compressor into a clean measured container.
3. Refill the new A/C compressor with the same amount of refrigerant oil that was drained out of the old compressor. Use only clean refrigerant oil of the type recommended for the A/C compressor in the vehicle.

CAUTION: Failure to properly adjust the refrigerant oil level prior to installation of a replacement compressor can prevent the A/C system from operating as designed and cause serious compressor damage.
A/C Compressor - Installation.