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Home >> Audi >> 2017 >> A7 Quattro Competition >> Repair and Diagnosis >> External Pages >> Different car >> Section 78 (3.0L - Diesel Fuel Injection - Engine Code: CPNB) >> 23 Diesel Fuel Injection >> Fuel Injection System >> Component Location Overview - Fuel Injection System >> Component Location Overview - Injection System, Vehicles With Two Turbochargers

Component Location Overview - Injection System, Vehicles With Two Turbochargers

WARNING: This page is about a different car, the 2015 Audi A7 Quattro and 2014 Audi A7 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Engine compartment 

Fig 1: Engine compartment Replacement Components
GWWA23-10681Courtesy of AUDI OF AMERICA, LLC
  1. Mass Airflow Sensor -G70-
  2. Camshaft Position Sensor -G40-
  3. EGR Temperature Sensor - G98- connector
    • Component location Fig 7
  4. Connector
    • for the Map Controlled Engine Cooling Thermostat - F265-, Fuel Metering Valve -N290- and Map Controlled Engine Cooling Thermostat -V338-
    • Component location Fig 7
  5. Restrictor
    • in the fuel return line
    • Component location Fig 7
  6. Differential Pressure Sensor -G505-
  7. Fuel Temperature Sensor -G81-
  8. Structure Borne Sound Control Module -J869-
  9. Turbocharger Control Module 1 -J724-
  10. EGR Motor -V338-
  11. Control Valve Position Sensor -G584-
  12. Heated Oxygen Sensor -G39- with Oxygen Sensor Heater -Z19-
  13. Fuel Pressure Sensor -G247-
  14. Heated Oxygen Sensor -G39- connector
  15. Engine Control Module -J623-
  16. Charge Air Pressure Sensor -G31- / Intake Air Temperature Sensor -G42-
    • Component location Fig 9
  17. Throttle Valve Control Module -J338-
  18. Injector
  19. Turbine Switch-Over Valve -N529-
  20. Engine Temperature Control Sensor -G694-
  21. EGR Temperature Sensor -G98-
  22. Intake Flap Motor -V157-
  23. EGR Cooler Switch-Over Valve -N345-
  24. Map Controlled Engine Cooling Thermostat -F265-
    • Component location Fig 7
    • 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-
  28. Fuel Pressure Regulator Valve -N276-
  29. Injector

Engine top 

Fig 2: Engine top Replacement Components
GWWA23-10682Courtesy of AUDI OF AMERICA, LLC
  1. Fuel Pressure Regulator Valve -N276-
  2. Cylinder 1 Fuel Injector -N30-
  3. Glow Plug 1 -Q10-
  4. Cylinder 2 Fuel Injector -N31-
  5. Camshaft Position Sensor -G40-
  6. Glow Plug 2 -Q11-
  7. Cylinder 3 Fuel Injector -N32-
  8. Glow Plug 3 -Q12-
  9. Fuel Temperature Sensor -G81-
  10. Exhaust Gas Temperature Sensor 1 -G235-
  11. Fuel Metering Valve -N290-
    • Component location Fig 8
  12. Charge Air Pressure Sensor 2 -G447-
  13. Turbocharger Control Module 1 -J724-
  14. EGR Motor -V338-
  15. Glow Plug 6 -Q15-
  16. Cylinder 6 Fuel Injector -N84-
  17. Glow Plug 5 -Q14-
  18. Cylinder 5 Fuel Injector -N83-
  19. Heated Oxygen Sensor -G39- connector
  20. Fuel Pressure Sensor -G247-
  21. Cylinder 4 Fuel Injector -N33-
  22. Glow Plug 4 -Q13-
  23. Engine Coolant Temperature Sensor -G62-
  24. EGR Temperature Sensor -G98-
  25. EGR Cooler Switch-Over Valve -N345-
  26. Connector for Wastegate Bypass Regulator Valve -N75-
  27. Connector for the Cylinder Head Coolant Valve -N489-
  28. Wastegate Bypass Regulator Valve -N75-
  29. Cylinder Head Coolant Valve -N489-
  30. Restrictor in the Fuel Return Line

Engine front 

Fig 3: Engine front Replacement Components
GWWA23-10683Courtesy of AUDI OF AMERICA, LLC
  1. Oil Level Thermal Sensor -G266-
  2. Map Controlled Engine Cooling Thermostat -F265-
    • Integrated in the oil filter housing; cannot be replaced separately
  3. Oil Temperature Sensor 2 -G664-
  4. Oil Pressure Switch -F22-
  5. Reduced Oil Pressure Switch -F378-
  6. EGR Cooler Switch-Over Valve -N345-
  7. Intake Flap Motor -V157-
  8. Throttle Valve Control Module -J338-
  9. Turbine Switch-Over Valve -N529-
  10. Engine Temperature Control Sensor -G694-
  11. Oil Pressure Regulation Valve -N428-
  12. Fuel Pump Control Module -J538-
  13. Reducing Agent Injector -N474-
  14. NOx Sensor -G295- with NOx Sensor Control Module -J583-
  15. NOx Sensor 2 -G687- with NOx Sensor Control Module 2 -J881-
  16. Reducing Agent Metering System Control Module -J880-
    • Only installed on vehicles with a selective catalytic reduction system (SCR)
Fig 4: Brake Lamp Switch & Clutch Position Sensor
GWWA30-10157Courtesy of AUDI OF AMERICA, LLC

1 - Brake Lamp Switch -F-

2 - Clutch Position Sensor - G476- with Clutch Pedal Starter Interlock Switch - F194- and Clutch Pedal Switch -F36- (manual transmission only)

Removing and Installing, refer to BRAKE LAMP SWITCH -F-, REMOVING AND INSTALLING .

Fig 5: Disconnect Coolant Fan Electrical Connectors
GWWA19-10626Courtesy of AUDI OF AMERICA, LLC

1 - Coolant Fan Control Module -J293-

2 - Coolant Fan - V7- connector

3 - Coolant Fan 2 - V177- connector

Fig 6: Camshaft Position Sensor, Bolt And Connector
GWWA23-10517Courtesy of AUDI OF AMERICA, LLC
Fig 7: EGR, Engine Cooling Thermostat Connectors
GWWA23-10616Courtesy of AUDI OF AMERICA, LLC
  1. for the EGR Temperature Sensor -G98-
  2. for the Map Controlled Engine Cooling Thermostat - F265-, Fuel Metering Valve -N290- and Map Controlled Engine Cooling Thermostat -V338-
  3. Restrictor in the Fuel Return Line
Fig 8: Fuel Metering Valve -N290- Component Location
GWWA23-10519Courtesy of AUDI OF AMERICA, LLC
Fig 9: Charge Air Pressure Sensor - G31- / Intake Air Temperature Sensor -G42- Component Location
GWWA21-10561Courtesy of AUDI OF AMERICA, LLC

Removing and installing, refer to CHARGE AIR PRESSURE SENSOR -G31- / INTAKE AIR TEMPERATURE SENSOR -G42-, REMOVING AND INSTALLING .

Fig 10: Engine Temperature Control Sensor - G694- Component Location
GWWA19-11268Courtesy of AUDI OF AMERICA, LLC

Removing and installing, refer to ENGINE TEMPERATURE CONTROL TEMPERATURE SENSOR -G694-, REMOVING AND INSTALLING .

Fig 11: Engine Coolant Temperature Sensor on Radiator Outlet -G83- Component Location
GWWA19-11269Courtesy of AUDI OF AMERICA, LLC

Removing and installing, refer to ENGINE COOLANT TEMPERATURE SENSOR ON RADIATOR OUTLET -G83-, REMOVING AND INSTALLING .

Fig 12: Control Valve Position Sensor -G584-
GWWA21-10727Courtesy of AUDI OF AMERICA, LLC
Fig 13: Oil Temperature Sensor 2 -G664-
GWWA17-10626Courtesy of AUDI OF AMERICA, LLC
Fig 14: Oil Pressure Regulation Valve -N428-
GWWA17-10629Courtesy of AUDI OF AMERICA, LLC
Fig 15: Fuel Pressure Sensor -G247- -arrow-
GWWA23-10535Courtesy of AUDI OF AMERICA, LLC
Fig 16: Heated Oxygen Sensor -G39- Connector
GWWA26-11152Courtesy of AUDI OF AMERICA, LLC

2 - Heated Oxygen Sensor -G39-

4 - Heated Oxygen Sensor -G39- connector

Fig 17: Differential Pressure Sensor, Gas Temperature Component Location
GWWA26-11154Courtesy of AUDI OF AMERICA, LLC

1 - Exhaust Gas Temperature Sensor 3 -G495-

2 - Differential Pressure Sensor -G505-

3 - Connection from the Differential Pressure Sensor - G505- pressure pipe

Fig 18: Charge Air Pressure Sensor 2 & Exhaust Gas Temperature Sensor 1
GWWA21-10726Courtesy of AUDI OF AMERICA, LLC

1 - Charge Air Pressure Sensor 2 -G447-

2 - Exhaust Gas Temperature Sensor 1 -G235-

The Turbocharger Control Module 1 -J724- can be seen on the left.

Fig 19: Exhaust gas temperature sensors in the turbocharger
GWWA26-11178Courtesy of AUDI OF AMERICA, LLC

1 - Exhaust Gas Temperature Sensor 1 -G235-

2 - Exhaust Gas Temperature Sensor 1 -G235- connector

Removing and installing, refer to EXHAUST GAS TEMPERATURE SENSOR 1 -G235-, INSTALLING AND REMOVING, VEHICLES WITH TWO TURBOCHARGERS .

Fig 20: Exhaust Gas Temperature Sensor
GWWA26-11171Courtesy of AUDI OF AMERICA, LLC

1 - Exhaust Gas Temperature Sensor 4 Bank 2 - G649- connector

2 - Bank 2 Exhaust Gas Temperature Sensor 4 -G649-

NOTE:

The Exhaust Gas Temperature Sensor 4 for Bank 2 -G649- is shown.

The Exhaust Gas Temperature Sensor 4 - G648- is installed across from this.

Removing and installing, refer to EXHAUST GAS TEMPERATURE SENSOR 2/4 -G648- / -G649-, REMOVING AND INSTALLING, VEHICLES WITH TWO TURBOCHARGERS .

Fig 21: NOx Sensor -G295- Component Location
GWWA23-10825Courtesy of AUDI OF AMERICA, LLC

NOx Sensor -G295- -arrow-

Fig 22: NOx Sensor Control Module -J583- Component Location
GWWA23-10827Courtesy of AUDI OF AMERICA, LLC

2 - NOx Sensor Control Module - J583- connector

3 - NOx Sensor Control Module - J583-

Fig 23: NOx Sensor 2 -G687- with NOx Sensor Control Module 2 -J881- Component Location
GWWA26-11183Courtesy of AUDI OF AMERICA, LLC
Fig 24: Left Engine Mount
GWWA10-11574Courtesy of AUDI OF AMERICA, LLC

1 - Left Electrohydraulic Engine Mount Solenoid Valve -N144-

2 - Left Electrohydraulic Engine Mount Solenoid Valve -N144- connector

Removing and installing, refer to ENGINE MOUNT, REMOVING AND INSTALLING .

Fig 25: Right Engine Mount
GWWA10-11573Courtesy of AUDI OF AMERICA, LLC

1 - Connector for the Right Electrohydraulic Engine Mount Solenoid Valve -N145-

2 - Right Electrohydraulic Engine Mount Solenoid Valve -N145-

Removing and installing, refer to ENGINE MOUNT, REMOVING AND INSTALLING .

Fig 26: Engine Speed Sensor -G28-
GWWA23-10711Courtesy of AUDI OF AMERICA, LLC