Capacities, AUDI A8 (4H_) From My 10, AUDI A8 Hybrid (4H_) From 2012
Features of the refrigerant system:
- Expansion Valve
- Depending on the vehicle equipment level with one or two evaporators
- Refrigerant pipe with inner heat exchanger
- Dryer cartridge in fluid reservoir on condenser
- 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 model | Production period | Capacity in grams | Differing features of this refrigerant circuit |
|---|---|---|---|
| Audi A8 | As of 03.10 | ||
|
780 + / - 20 |
|
|
|
930 + / - 20 |
|
|
| Audi A8 Hybrid | From January 2012 | 1080 + / - 15 |
|
For vehicles with 8 cylinders. The refrigerant oil quantity must be increased in the refrigerant circuit for TDI engines for vehicles with VIN numbers from 4H_ BN 018846. To differentiate, the refrigerant quantity must be slightly reduced. Since the filling capacity information on the information label does not change, proceed as follows: For vehicles built through the designated VIN, check whether the refrigerant oil capacity was possibly filled during a previous workshop visit, if not, fill the refrigerant circuit with an additional 50 cubic cm of refrigerant oil. Next, write down the corresponding filling capacity for the refrigerant in the information label with a waterproof marker and fill the refrigerant circuit with the above mentioned refrigerant quantity. Finally, document the performed changes in the vehicle data. For vehicles constructed within the applicable VIN range, check the specified filling capacity for the refrigerant in the information label and if necessary write down the corresponding quantities with a waterproof marker and then fill the refrigerant circuit with the specified refrigerant quantity
For all vehicles except for the Audi A8 Hybrid, the mechanically driven A/C compressors manufactured by "Denso" are installed. Compressors from other manufacturers may also be installed at a later time. Refer to [For engine(s) BPY, CETA, CCTA, CDMA, CEPB] Removal and Installation (vehicle-specific Repair Information).
An electrically driven A/C compressor manufactured by "Denso" (electrical A/C compressor -V470- with A/C compressor control module -J842-) is installed at the start of production for the Audi A8 Hybrid. There is no A/C compressor regulator valve -N280- present in this A/C compressor.
A/C compressors with a refrigerant oil quantity of 200 cubic cm are installed at the start of production for Audi A8 Hybrid vehicles, shortly after the start of production, the refrigerant oil quantity is reduced to 160 cubic cm. Always fill the vehicles when servicing to 1080 +/- 15 g with refrigerant (write the capacity information on the information label with a waterproof marker if necessary) regardless of the refrigerant oil quantity.