Capacities, AUDI R8 (42_) From My 08
Features of the refrigerant system:
- Restrictor
- Reservoir
- Two condensers switched in sequence
- 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 R8 | As of 03.07 | 150 + /- 10 | 150+ / - 10 | A/C compressor 7 SEU 17 |
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 .
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.
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.
Too much oil in the circuit leads to higher pressures and reduces cooling performance of the A/C system. Too little oil may lead to lubrication problems in the compressor, therefore note the specified refrigerant oil quantities.
A data plate may be attached to the A/C compressor by the manufacturer, indicating the part number and refrigerant oil quantity.