A3 Mk1
| Capacities for Audi A8 (4H_) 2010 ►, Audi A8 hybrid (4H_) 2012 ► |
| Characteristics of refrigerant circuit: |
| l | Expansion valve |
| l | With one or two evaporator(s) depending on equipment |
| l | Refrigerant line with internal heat exchanger |
| l | Dryer cartridge in receiver at condenser |
| l | „Denso“ air conditioner compressor with air conditioner compressor regulating valve -N280- → Air conditioning; Rep. gr.87 (vehicle-specific workshop manual) and → Electronic parts catalogue |
Caution
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| Vehicle model | Production period | Capacity in grammes | Differing characteristics of this refrigerant circuit | ||||||
| Audi A8 (all except 8-cyl. TDI engine) | From 03.10 onwards | ||||||||
| 780 + / - 20 |
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| 930 + / - 20 |
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| Audi A8 (only 8-cyl. TDI engine) | From 03.10 onwards | ||||||||
| 740 + / - 15 |
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| 915 + / - 15 |
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| Audi A8 hybrid | From 01.12 onwards | 1080 + / - 15 |
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Note| t | On vehicles with a 8-cyl. TDI engine, the quantity of refrigeration oil in the refrigerant circuit was increased as of vehicle identification number 4H_ BN 018846 and the refrigerant capacity had to be accordingly reduced slightly. As the capacity specification on the label has not yet been changed, proceed as follows: On vehicles manufactured up to the vehicle identification number mentioned, check whether the refrigerant oil has already been topped up during a previous workshop visit. If not, add 50 ccm of refrigerant oil to the refrigerant circuit. Then correspondingly alter the refrigerant capacity specified on the label in waterproof ink and fill the refrigerant circuit with the quantity of refrigerant stated above. Finally make a record of the change made in the vehicle data. On vehicles manufactured as of the vehicle identification number mentioned, check the refrigerant capacity specified on the label, alter accordingly in waterproof ink if applicable and then fill the refrigerant circuit with the quantity of refrigerant specified above. |
| t | At the start of production, all vehicles except the Audi A8 hybrid were fitted with mechanically driven air conditioner compressors manufactured by „Denso“. Air conditioner compressors produced by other manufacturers may also be fitted at a later date → Electronic parts catalogue and → Air conditioning; Rep. gr.87 (vehicle-specific Workshop Manual). |
| t | At the start of production, the Audi A8 hybrid is fitted with an electrically driven „Denso“ air conditioner compressor (electrical air conditioner compressor -V470- with control unit for air conditioning compressor -J842-). There is no provision for an air conditioner compressor regulating valve -N280- on this air conditioner compressor. |
| t | At the start of production, the Audi A8 hybrid was fitted with an air conditioner compressor with a refrigerant oil quantity of 200 ccm. Shortly after the start of production, the refrigerant oil quantity was reduced to 160 ccm. In after-sales service, a quantity of 1080 +/- 15 g of refrigerant always applies for these vehicles irrespective of the refrigerant oil quantity (if necessary, change capacity specification on label with a water-proof pen). |
