Refrigerant Oil Capacities In Refrigerant Circuits For Refrigerant R1234YF
Depending on the time period of production and the engine, the compressor construction type may vary. Refer to the parts information.
Depending on the A/C compressor type, different refrigerant oil capacities may be designated for the refrigerant circuit. Refer to the parts information.
For additional information about refrigerant oil, refer to appropriate service information. .
- APPROVED REFRIGERANT OILS FOR REFRIGERANT R1234YF
- Overview and characteristics for the refrigerant circuit. Refer to SYSTEM OVERVIEW - REFRIGERANT CIRCUIT
| Vehicle type | Production period | Total quantity of oil in refrigerant circuit in cm3 | Quantity of refrigerant oil in replacement compressor in cm3 | Differing features of this refrigerant circuit |
|---|---|---|---|---|
| Audi A6/A7 | From 06/2016 | 110+ 20/- 10 | 110 + /- 10 |
|
| Audi A6 e-tron | From 06/2016 | For now, R1234yf is not being used (for refrigerant R134a capacities, refer to appropriate service information. ). | For now, R1234yf is not being used (for refrigerant R134a capacities, refer to Refer to appropriate service information. ). |
|
The replacement compressor contains the full quantity of oil intended for the refrigerant circuit. If the A/C compressor is replaced, the amount of oil in the A/C compressor must then be adjusted. .
At the start of production, the mechanically-driven A/C compressors manufactured by "Denso" are installed on all vehicles except for the Audi A6 e-tron. A/C compressors from other manufacturers may also be installed later. Refer to the parts information.
At the start of production, an electrically-driven "Sanden" A/C compressor (Electrical A/C Compressor -V470- with A/C Compressor Control Module -J842-) is installed on the Audi A6 e-tron. There is no A/C Compressor Regulator Valve -N280- present in this A/C compressor.
This A/C compressor is available as a replacement part with different oil fill capacities, therefore note the oil capacity in the A/C compressor and the exact part number. Refer to the parts information.
The reason for the different oil capacities inside the A/C compressor is due to the design of the A/C compressor (with or with an oil separator on the high pressure connection) or to the design of the refrigerant circuit if the A/C compressors are have the identical design. Pay attention to the different capacities. Too much oil in the circuit leads to higher pressures and reduces cooling output of the system. Too little oil may lead to lubrication problems in the compressor.
A data plate may be attached to the A/C compressor by the manufacturer, indicating the part number and refrigerant oil quantity.