Component Location Overview - Cooling System, AWD

Fig 1: Identifying Cooling System Components (AWD)

Courtesy of AUDI OF AMERICA, LLC

1. Electric Drive Power and Control Electronics -JX1-
   • Refer to REAR ELECTRIC DRIVE POWER AND CONTROL ELECTRONICS, REMOVING AND INSTALLING [EDCA, EBNA, EEVA, EBJA, EBRA] , or REAR ELECTRIC DRIVE POWER AND CONTROL ELECTRONICS, REMOVING AND INSTALLING [EDDA, EDFA] .
2. Temperature Sensor -G18-
   • On top of the High-Voltage Battery Charger 1 -AX4- in the hose connector
   • Refer to [For engine(s) EDFA, EDDA] Temperature Sensor G18, Removing and Installing , or [For engine(s) EBJA, EBRA] Temperature Sensor G18, Removing and Installing  .
3. Voltage Converter -A19-
   • Refer to VOLTAGE CONVERTER, REMOVING AND INSTALLING, AWD .
4. High-Voltage Battery Charger 1 -AX4-
   • With High-Voltage Battery Charger Control Module -J1050-
   • Refer to High-Voltage Battery Charger 1 AX4, Removing and Installing .
5. Three-Phase Current Drive -VX54-
   • Refer to [For engine(s) EBJA, EBRA] Overview - Rear Motor .
   • Refer to [For engine(s) EBJA, EBRA] Rear Motor, Removing .
   • Refer to [For engine(s) EBJA, EBRA] Rear Motor, Installing .
6. Electric Drive Power and Control Electronics 2 -JX4-
   • Refer to ELECTRIC DRIVE POWER AND CONTROL ELECTRONICS, FRONT, REMOVING AND INSTALLING [EDCA, EBNA, EEVA, EBJA, EBRA] , or ELECTRIC DRIVE POWER AND CONTROL ELECTRONICS, FRONT, REMOVING AND INSTALLING [EDDA, EDFA]
7. High-Voltage Battery Coolant Pump -V590-
   • Refer to HIGH-VOLTAGE BATTERY COOLANT PUMP V590, REMOVING AND INSTALLING, AWD  .
8. Mixing Valve for High-Voltage Battery Warming -V683-
   • Refer to MIXING VALVE FOR HIGH-VOLTAGE BATTERY WARMING V683, REMOVING AND INSTALLING, AWD  .
9. Mixing Valve 2 for High-Voltage Battery Warming -V696-
   • Dependent on vehicle equipment/version
   • Refer to MIXING VALVE 2 FOR HIGH-VOLTAGE BATTERY WARMING V696, REMOVING AND INSTALLING, HEAT PUMP  .
10. High-Voltage Battery Coolant Temperature Sensor 2 -G899-
    • Battery output (return)
    • Refer to HIGH-VOLTAGE BATTERY COOLANT TEMPERATURE SENSOR 2 G899, REMOVING AND INSTALLING  .
11. High-Voltage Battery Coolant Temperature Sensor 1 -G898-
    • Battery input (supply)
    • Refer to HIGH-VOLTAGE BATTERY COOLANT TEMPERATURE SENSOR 1 G898, REMOVING AND INSTALLING  .
12. Low Temperature Circuit Coolant Pump -V468-
    • Refer to Low Temperature Circuit Coolant Pump V468, Removing and Installing  .
13. Three-Phase Current Drive 2 -VX97-
    • Refer to OVERVIEW - FRONT MOTOR, LHD .
    • Refer to FRONT MOTOR, REMOVING, LHD .
    • Refer to FRONT MOTOR, INSTALLING, LHD .
14. High-Voltage Heater (PTC) 3 -Z132-
    • Refer to HEATING ELEMENT (PTC) 3 -Z132-, REMOVING AND INSTALLING, AWD .
15. Radiator Module
    • Refer to Radiator Module, Removing and Installing  .
16. High-Voltage Battery Heat Exchanger
    • Refer to HIGH-VOLTAGE BATTERY HEAT EXCHANGER, REMOVING AND INSTALLING, R744 , or HIGH-VOLTAGE BATTERY HEAT EXCHANGER, REMOVING AND INSTALLING, R134A/R1234YF .
17. Coolant Expansion Tank
    • With the Engine Coolant Level Sensor -G32-
    • Refer to Coolant Expansion Tank, Removing and Installing  .
18. Thermostat
    • Refer to Overview - Cooling System, AWD  .
19. Heat Pump Valve Unit
    • Dependent on vehicle equipment/version
    • Refer to HEAT PUMP VALVE UNIT, REMOVING AND INSTALLING .