Refrigerant Oil Capacities

The allocation of the A/C compressor ("Zexel / Valeo", "Sanden" or "Denso") can be found in the vehicle-specific repair manual. Refer to Refrigerant Circuit (vehicle-specific repair manual) and the Parts Information.

Beginning from production year 2006, the name of the "Zexel" A/C compressor was changed from "Zexel" to "Valeo".

With "Zexel", "Denso" and "Sanden" compressors, the amount of refrigerant oil in the replacement compressor corresponds to the total quantity of oil to be added. On A/C compressor replacement, the quantity of refrigerant oil in the A/C compressor to be installed must therefore be adjusted (an incorrect refrigerant oil quantity will damage the A/C compressor).

When pouring refrigerant oil out of replacement A/C compressor (or malfunctioning A/C compressor), a small quantity of oil generally remains in the mechanically driven A/C compressor (20 to 30 cm³ ). This amount of refrigerant oil does not affect the function of the air conditioner and can therefore be ignored (always remains in A/C compressor). On electrically-driven A/C compressors depending on the construction and version a large about of refrigerant oil remains in the A/C compressor when pouring out, so instead of emptying these are flushed. Refer to ELECTRICALLY-DRIVEN A/C COMPRESSOR, FLUSHING (REMOVING REFRIGERANT OIL) .

Following initial switch-on, the refrigerant oil is distributed throughout the entire refrigerant circuit.

The specified capacities for the refrigerant oil apply if no other different specifications given for the "S" and "RS".

Refrigerant oil capacities when replacing refrigerant circuit components. Refer to REFRIGERANT CIRCUIT COMPONENTS, REPLACING . Also refer to Refrigerant Circuit (vehicle-specific repair manual) and the Parts Information.