System Overview - Refrigerant Circuit
NOTE:
For A/C systems with refrigerant R1234yf, the desiccant bag/dryer cartridge must be replaced each time the refrigerant circuit is opened. Refer to COMPONENTS, REPLACING .
Under certain conditions, the desiccant bag no longer needs to be replaced each time the refrigerant circuit is opened on A/C systems with refrigerant R134a. Refer to the appropriate Service Information .
- Refrigerant Line - Low Pressure Side
- From the A/C compressor to the refrigerant line with inner heat exchanger
- An additional balance weight may be present on this refrigerant line depending on the refrigerant line version and the production period. Refer to the Parts Information.
- Balance Weight, Removing and Installing. Refer to LOW PRESSURE SIDE REFRIGERANT LINE BALANCE WEIGHT, REMOVING AND INSTALLING .
- Removing and Installing. Refer to REFRIGERANT LINE FROM EVAPORATOR TO A/C COMPRESSOR, REMOVING AND INSTALLING .
- Refrigerant Line - High Pressure Side
- To the refrigerant line with the inner heat exchanger
- Removing and Installing. Refer to REFRIGERANT LINE FROM CONDENSER TO EVAPORATOR, REMOVING AND INSTALLING .
- Refrigerant Line with Inner Heat Exchanger
- From the condenser and A/C compressor
- Removing and Installing. Refer to REFRIGERANT LINES WITH INNER HEAT EXCHANGER, REMOVING AND INSTALLING .
- Expansion Valve
- Removing and Installing. Refer to EXPANSION VALVE, REMOVING AND INSTALLING .
- Tightening specification. Refer to -item Bolts.
- A/C Compressor
- Overview. Refer to OVERVIEW - A/C COMPRESSOR .
- Removing and installing from the bracket. Refer to A/C COMPRESSOR, REMOVING AND INSTALLING ON BRACKET .
- Removing and Installing. Refer to A/C COMPRESSOR, REMOVING AND INSTALLING .
- Desiccant Bag/Dryer Cartridge
- Removing and Installing. Refer to DESICCANT BAG/DRYER CARTRIDGE, REMOVING AND INSTALLING .
- Condenser
- Overview. Refer to OVERVIEW - CONDENSER .
- Removing and Installing. Refer to CONDENSER, REMOVING AND INSTALLING .
- Refrigerant Line
- From the condenser to A/C compressor
- Removing and Installing. Refer to REFRIGERANT LINE FROM A/C COMPRESSOR TO CONDENSER, REMOVING AND INSTALLING .
- Nut
- 8 Nm
- Bolt
- 8 Nm
- Bolts
- 4.5 Nm ± 0.5 Nm
- Bolts
- 22 Nm
- Pressure Relief Valve on A/C Compressor
- Check using the Vehicle Diagnostic Tester Refer to PRESSURE RELIEF VALVE ON A/C COMPRESSOR, CHECKING .
- Connector with A/C Compressor Regulator Valve -N280-
- Oil Drain Plug
Tightening specification:
- Denso A/C compressor: 30 Nm
- Sanden A/C compressor: 10 Nm
- Cap
- Only installed on all manufacturers
- Overview. Refer to OVERVIEW - CONDENSER .
- Bolts
- 8 Nm
- High Pressure Side Service Connection
- Refrigerant and Refrigerant Oil Capacities. Refer to TECHNICAL DATA .
- Removing and Installing. Refer to EVACUATING AND CHARGING VALVE, REMOVING AND INSTALLING, LOW AND HIGH PRESSURE SIDE .
- Cap: 0.4 Nm
- Valve: 2 Nm
- Refrigerant Circuit Pressure Sensor -G805-
- Removing and Installing. Refer to Refrigerant Circuit Pressure Sensor -G805-, REMOVING AND INSTALLING .
- 5 Nm
- Low Pressure Side Service Connection
- Refrigerant and Refrigerant Oil Capacities. Refer to TECHNICAL DATA .
- Removing and Installing. Refer to EVACUATING AND CHARGING VALVE, REMOVING AND INSTALLING, LOW AND HIGH PRESSURE SIDE .
- Cap: 0.4 Nm
- Valve: 2 Nm