Component Location Overview - Injection System, Vehicles With Two Turbochargers: Notes

Engine Compartment 

Courtesy of AUDI OF AMERICA, LLC

1. Mass Airflow Sensor -G70-
   • Removing and installing. Refer to Mass Airflow Sensor -G70-, REMOVING AND INSTALLING .
2. Camshaft Position Sensor -G40-
   • Component location
   • Overview. Refer to OVERVIEW - GLOW PLUG SYSTEM .
3. EGR Temperature Sensor - G98- connector
   • Component location
4. Connector
   • for the Map Controlled Engine Cooling Thermostat - F265-, Fuel Metering Valve -N290- and Map Controlled Engine Cooling Thermostat -V338-
   • Component location
5. Restrictor
   • in the fuel return line
   • Component location
6. Differential Pressure Sensor -G505-
   • Component location
7. Fuel Temperature Sensor -G81-
8. Structure Borne Sound Control Module -J869-
9. Turbocharger Control Module 1 -J724-
   • Exhaust Gas Temperature Sensor 1 -G235-
   • Charge Air Pressure Sensor 2 -G447-
   • Component location
   • Overview. Refer to OVERVIEW - TURBOCHARGER, VEHICLES WITH TWO TURBOCHARGERS .
10. EGR Motor -V338-
    • Overview. Refer to appropriate service information.
11. Control Valve Position Sensor -G584-
    • Component location
12. Heated Oxygen Sensor -G39- with Oxygen Sensor Heater -Z19-
    • Component location
    • Overview. Refer to OVERVIEW - HEATED OXYGEN SENSOR .
13. Fuel Pressure Sensor -G247-
    • With biting edge for sealing
    • Cannot be used again
    • Removing and Installing. Refer to Fuel Pressure Sensor -G247-, REMOVING AND INSTALLING .
    • Tightening specification. Refer to .
14. Heated Oxygen Sensor -G39- connector
15. Engine Control Module -J623-
    • Component location
    • Removing and installing. Refer to Engine Control Module -J623-, REMOVING AND INSTALLING .
16. Charge Air Pressure Sensor -G31- / Intake Air Temperature Sensor -G42-
    • Component location
17. Throttle Valve Control Module -J338-
    • Overview. Refer to OVERVIEW - INTAKE MANIFOLD .
18. Injector
    • Cylinder bank 2
    • Removing and installing. Refer to FUEL INJECTORS, REMOVING AND INSTALLING .
19. Turbine Switch-Over Valve -N529-
20. Engine Temperature Control Sensor -G694-
    • Component location
21. EGR Temperature Sensor -G98-
    • Overview. Refer to appropriate service information.
22. Intake Flap Motor -V157-
    • Overview. Refer to OVERVIEW - INTAKE MANIFOLD .
23. EGR Cooler Switch-Over Valve -N345-
24. Map Controlled Engine Cooling Thermostat -F265-
    • Component location
    • Integrated in the oil filter housing; cannot be replaced separately
25. Cylinder Head Coolant Valve -N489-
26. Wastegate Bypass Regulator Valve -N75-
27. Reduced Oil Pressure Switch -F378-
    • Overview. Refer to OVERVIEW - OIL FILTER HOUSING/OIL PRESSURE SWITCH .
28. Fuel Pressure Regulator Valve -N276-
    • With biting edge for sealing
    • Cannot be used again
    • Removing and installing. Refer to Fuel Pressure Regulator Valve -N276-, REMOVING AND INSTALLING 
    • Tightening specification. .
29. Injector
    • Cylinder bank 1
    • Removing and installing. Refer to FUEL INJECTORS, REMOVING AND INSTALLING .