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Home >> Audi >> 2016 >> S4 Premium Plus, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 633 (2.0L - Turbocharger & Supercharger - Engine Code(S): CAEB, CHJA, CPMA & CPMB) >> 21 Turbocharger, Supercharger >> Turbocharger >> Overview - Turbocharger >> Part III

Part III

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Turbocharger Part I, refer to Part I .

Turbocharger Part II, refer to Part II .

Fig 1: Turbocharger Overview Part III
GWWA21-10409Courtesy of AUDI OF AMERICA, LLC
  1. Seal
    • Replacing
  2. Nut
    • Replacing
    • Tightening sequence, refer to Fig 2
    • Coat the exhaust manifold stud bolts with hot bolt paste.
  3. Bolt
    • 35 Nm
  4. Seal
    • Replacing
  5. Coolant Supply Line
  6. Bolt
    • 9 Nm
  7. Turbocharger
  8. Bolt
    • 30 Nm
  9. Bracket
  10. Support
  11. Bolt
    • 30 Nm
  12. Bolt
    • 30 Nm
    • Coat the bolt with hot bolt paste .
  13. Nut
    • 30 Nm
    • Replacing
    • Do not open when removing turbocharger
    • Coat the exhaust manifold stud bolts with hot bolt paste.
  14. Clamping Strip
Fig 2: Identifying Turbocharger Nut Tightening Sequence
GWWA21-10341Courtesy of AUDI OF AMERICA, LLC

-- Tighten the bolts -1 through 5- in four steps as follows:

-- Tighten the nuts to 5 Nm.

-- Tighten the nuts to 12 Nm.

-- Tighten the nuts to 16 Nm.

-- Tighten the nuts to 25 Nm.