Capacities, AUDI A6 (4G_) From My 11 And AUDI A7 (4G_) From My 11
Features of the refrigerant system:
- Expansion Valve
- Fluid Reservoir
- Refrigerant pipe with inner heat exchanger.
- Denso A/C compressors with an A/C compressor regulator valve -N280-, refer to [For engine(s) BPY, CETA, CCTA, CDMA, CEPB] Description and Operation (vehicle-specific repair information).
| Vehicle model | 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 | As of 02.11 | 120 + / - 10 | 120 + / - 10 |
|
| Audi A7 | As of 10.10 | 120 + / - 10 | 120 + / - 10 |
|
The replacement compressor contains the full quantity of oil intended for the refrigerant circuit. On A/C compressor replacement, the quantity of oil in the A/C compressor is therefore to be adjusted. Refer to REMOVAL AND INSTALLATION .
At the start of production, the A/C compressors manufactured by Denso (type 6 SEU 14) were installed. A/C compressors from other manufacturers or another type may also be installed at a later time. Refer to [For engine(s) BPY, CETA, CCTA, CDMA, CEPB] Description and Operation (vehicle-specific repair information).
These A/C compressors are available as replacement parts with different oil fill capacities, therefore note capacity on the A/C compressor and the exact part number. Refer to the [For engine(s) BPY, CETA, CCTA, CDMA, CEPB] Removal and Installation (vehicle-specific repair 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 performance 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.