CAPACITY INFORMATION
Refrigerant R134a and refrigerant oil capacities, refer to REFRIGERANT R134A CAPACITIES.
Bleed, evacuate and fill the refrigerant circuit. Refer to Description and Operation.
Operate the A/C system after filling the refrigerant circuit, refer to A/C SYSTEM, OPERATING AFTER FILLING REFRIGERANT CIRCUIT.
Note. Depending on time period of production and on engine, compressor construction type may vary. At the beginning of production, A/C compressor was manufactured by Denso (type 7 SEU 16 or 7 SEU 17) were installed; from MY 2004 A/C compressors by other manufacturers (Delphi, Sanden or Zexel) may also be installed. Refer to CAPACITIES, AUDI A3 (8P_) FROM MY 04. Beginning the production year 2006, the name of the Zexel A/C compressor was changed from Zexel to Valeo. Depending on the type of A/C compressor (for example Denso Type6 SEU 14, 7 SEU 16 or 7 SEU 17) there are different refrigerant capacities for the refrigerant circuit, refer to CAPACITIES, AUDI A3 (8P_) FROM MY 04. Compressor as replacement part has different oil fill capacities, therefore note the exact part number, refer to [ REFRIGERANT OILS. The reason for the different oil capacities in the compressor is the design of the compressor itself, note these oil 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. Always fill refrigerant circuit as far as upper tolerance limit (some refrigerant remains in filler hoses). The refrigerant circuit may only be filled with approved refrigerant oils. Zexel, Sanden and Denso compressors require different refrigerant oils, refer to REFRIGERANT OILS. Use only the specified oil from a sealed container and always reseal oil container immediately after use (PAG oil absorbs moisture). Do not use oil if it is contaminated with moisture or if oil container has been left open. Additional information, refer to General Information.
FASTENER TIGHTENING SPECIFICATIONS
| Component | Fastener Size | Nm |
|---|---|---|
| A/C Compressor | 25 | |
| A/C Compressor Belt Pulley Nut | 25 | |
| Air Distribution Housing Screw | 2.5 | |
| Auxiliary Heater Heating Element | 6 | |
| Condenser to Radiator | 5 | |
| Drive Plate, Denso, Version 1 1 | 20 | |
| Drive Plate, Denso Version 2 2 | 35 | |
| Drive Plate, Denso Version 3 3 | 30 | |
| Drive Plate to Shaft, Zexel / Valeo 4 | 17 | |
| Drive Plate to Pulley, Zexel / Valeo 5 | 7 | |
| Drive Plate to Shaft, Sanden | 25 | |
| Drive Plate to Pulley (version 1), Sanden 6 | 4.5 | |
| Drive Plate to Pulley (version 2), Sanden 7 | 12 | |
| Dryer Cartridge Sealing Cap, Denso Condenser | 2 | |
| Expansion Valve | 10 | |
| Fluid Reservoir Mounting | 10 | |
| High Pressure Sensor | 8 | |
| Oil Drain Plug, Denso compressor | 30 | |
| Oil Drain Plug, Sanden compressor | 10 | |
| Oil Drain Plug, Zexel compressor | 10 | |
| Oil Drain Plug, Delphi compressor | 15 | |
| Pressure Relief Valve, Delphi Compressor With Sealing Ring | 15 | |
| Pressure Relief Valve, Sanden Compressor | 14.5 | |
| Pressure Relief Valve, Denso Compressor | 10 | |
| Pressure Relief Valve, Zexel / Valeo Compressor | 10 | |
| Refrigerant Lines to Expansion Valve | 10 | |
| Refrigerant Lines to Condenser | 10 | |
| Refrigerant Lines to Compressor | 25 | |
| Refrigerant Line Connecting Point | 10 | |
| 1 -Item 1- Screw A/C COMPRESSOR BELT PULLEY, DENSO VERSION 1 2 -Item 2- Drive Plate A/C COMPRESSOR BELT PULLEY, DENSO VERSION 2 3 -Item 2- Drive Plate A/C COMPRESSOR BELT PULLEY, DENSO VERSION 3 4 -Item 1- Screw A/C COMPRESSOR BELT PULLEY, ZEXEL / VALEO 5 -Item 2- Screw A/C COMPRESSOR BELT PULLEY, ZEXEL / VALEO 6 -Item 2- Screw A/C COMPRESSOR BELT PULLEY, SANDEN 7 -Item 2- Screw A/C COMPRESSOR BELT PULLEY, SANDEN |
See also:
• Removal and Installation