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Home >> Audi >> 2025 >> S4 Premium >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Turbocharger, Supercharger (Servicing - 6-Cylinder 2.9L; 3.0L 4V TFSI Ea839 Engine) >> 21 Turbocharger, Supercharger >> Turbocharger >> Overview - Turbocharger >> Overview - Turbocharger, 3.0L Engine >> Part II

Part II

Part I. Refer to Part I .

Part III. Refer to Part III .

Fig 1: Exploded View Of Turbocharger, 3.0L Engine
GWWA21-11119Courtesy of AUDI OF AMERICA, LLC
  1. Nut
    • After loosening, replace the stud bolt  . Stud Bolt
    • 20 Nm +30°
  2. Tensioning Bracket
  3. Seal
    • Replace after removing
  4. Stud Bolt
    • After loosening, replace the nut  . Nut
    • 20 Nm
  5. Tensioning Bracket
  6. Nut
    • After loosening, replace the stud bolt  . Stud Bolt
    • 20 Nm +30°
  7. Oil Return Line
    • Replace after removing
  8. Clip
  9. Air Duct Pipe
  10. Bolt
    • Tightening specification. Refer to  . Bolt.
  11. Seal
    • Replace after removing
  12. Air Duct Pipe/Connections
    • There are different versions. Refer to the Electronic Parts Information (ETKA) for the allocation.
  13. Bolt
    • Tightening specification. Refer to  . Bolt.
  14. Seal
    • Replace after removing
  15. Nut
    • Replace after removing
    • After loosening, replace the stud bolt  . Stud Bolt
    • Tightening Specifications:
      • Step 1: 15 Nm
      • Step 2: 30 Nm
      • Step 3: After finishing the procedures, tighten the nuts to 30 Nm
  16. Turbocharger
  17. Screw-Type Clamp
    • Replace after removing
    • 20 Nm
  18. Seal
    • Replace after removing
  19. Coupling
    • Replace after removing
  20. Nut
    • Replace after removing
    • After loosening, replace the stud bolt  . Stud Bolt
    • Tightening Specifications:
      • Step 1: 15 Nm
      • Step 2: 30 Nm
      • Step 3: After finishing the procedures, tighten the nuts to 30 Nm
  21. Seal
    • Replace after removing
  22. Stud Bolt
    • After loosening, replace the nut  . Nut
    • 20 Nm