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Home >> Audi >> 2021 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 486 (Turbocharger, Supercharger - (Servicing - 8-Cylinder 4.0L 4V TFSI Engine Ea825)) >> 21 Turbocharger, Supercharger >> Turbocharger >> Overview - Turbocharger

Overview - Turbocharger

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Fig 1: Exploded View Of Turbocharger
GWWA21-11614Courtesy of AUDI
  1. Exhaust Manifold
  2. Seal
    • Replace after removing
  3. Screw-Type Clamp
    • 25 Nm
  4. Turbocharger
  5. O-Ring
    • Replace after removing
  6. Heat Shield
  7. Bolt
    • Replace after removing
    • 9 Nm
  8. Recirculation Valve
    • Recirculation Valve, Bank 1 -N625-
    • Recirculation Valve, Bank 2 -N626-
    • Removing and installing. Refer to Turbocharger ; Recirculation Valve, Removing and Installing
  9. O-Ring
  10. Check Valve
    • Installed depending on the version. Refer to the appropriate Electronic Parts Information.
    • Installation position. Refer to Fig 3.
  11. Seal/O-Ring
  12. Hose
    • For the crankcase ventilation
    • There are different versions. Refer to the appropriate Electronic Parts Information.
    • Replace if damaged or leaking
    • Replacing. Refer to CRANKCASE VENTILATION HOSE, REPLACING .
  13. Bolt
    • All excluding engine codes DWKA/DWLA/DWNB/DWPA/DWRB: replace after removal
    • 8 Nm
  14. Vacuum Diaphragm
  15. Lock Nut
    • 8 Nm
  16. Locking Spring
    • Replace after removing
  17. Operating Lever
    • For the vacuum diaphragm
  18. Nut
    • 9 Nm
  19. O-Ring
    • Replace after removing
  20. Bolt
    • 9 Nm
  21. Upper Coolant Line
  22. Retaining Plate
  23. Bolt
    • 9 Nm
  24. O-Rings
    • Replace after removing
  25. Oil Supply Line
  26. O-Ring
    • Replace after removing
  27. O-Ring
    • Replace after removing
  28. O-Ring
    • Replace after removing
  29. Lower Coolant Line
  30. Bolt
    • 9 Nm
  31. O-Ring
    • Replace after removing
  32. Bolt
    • 9 Nm
  33. Oil Return Line
  34. Bolt
    • 9 Nm
  35. O-Ring
    • Replace after removing
  36. Bolt
  37. EVAP System Line
    • Installed depending on the version. Refer to the appropriate Electronic Parts Information.
  38. O-Ring

Engine Cover Temperature SensorG765 - tightening specification

Fig 2: Engine Cover Temperature Sensor -G765-
GWWA21-11356Courtesy of AUDI

-- Tighten the bolt -1- to 9 Nm.

Check valve for crankcase ventilation - installation position

Fig 3: Check valve for crankcase ventilation - installation position
GWWA21-11597Courtesy of AUDI

A -  Points Outward

B -  Points to the turbocharger

Vacuum hose for vacuum diaphragm - installation position

Fig 4: Vacuum Hose for Vacuum Diaphragm - Installation Position
GWWA21-11362Courtesy of AUDI