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Home >> Audi >> 2010 >> A4 2.0T >> Repair and Diagnosis >> External Pages >> Different car >> Section 596 (3.0L - Exhaust System & Emission Controls - Engine Code(S): CPNB) >> 26 Exhaust System, Emission Controls >> Exhaust Temperature Regulation >> Overview - Exhaust Temperature Regulation >> Overview - Exhaust Temperature Regulation

Overview - Exhaust Temperature Regulation

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Fig 1: Heated Oxygen Sensor
GWWA23-10556Courtesy of AUDI OF AMERICA, LLC
  1. Pressure Pipe
    • Tightening specification: 45 Nm
    • For the Differential Pressure Sensor -G505-
  2. Heated Oxygen Sensor -G39- with Oxygen Sensor Heater -Z19-
  3. Differential Pressure Sensor -G505-
  4. Exhaust Gas Temperature Sensor 4 -G648-
  5. Exhaust Gas Temperature Sensor 1 -G235-
  6. Exhaust Gas Temperature Sensor 3 -G495-


Fig 1: Heated Oxygen Sensor Components Location
GWWA26-11431Courtesy of AUDI OF AMERICA, LLC
  1. Nut
    • Tightening specification: 2 Nm
  2. NOx Sensor 2 -G687-
  3. Particulate Sensor -G784-
  4. Bracket
    • For NOx Sensor 2 -G687- and Particulate Sensor -G784-
  5. Particulate Filter
  6. Exhaust Gas Temperature Sensor 2 -G448-
  7. Heated Oxygen Sensor -G39-
  8. Nut
    • Tightening specification: 2 Nm
  9. Bracket
  10. NOx Sensor -G295-
  11. Exhaust Gas Temperature Sensor 3 -G495-
  12. Pressure Pipe
    • Tightening specification: 45 Nm
    • For the Differential Pressure Sensor -G505-
  13. Bracket
    • For the Differential Pressure Sensor -G505-
  14. Differential Pressure Sensor -G505-
  15. Exhaust Gas Temperature Sensor 4 -G648-
  16. Turbocharger
  17. Exhaust Gas Temperature Sensor 1 -G235-
  18. Selective Catalytic Reduction (SCR) Catalytic Converter