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Home >> Audi >> 2016 >> S4 Premium Plus, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 629 (2.0L - Cylinder Head & VALVETRAIN - Engine Code(S): CAEB, CHJA, CPMA & CPMB) >> 15 Cylinder Head, VALVETRAIN >> Chain Drive >> Overview - Camshaft Timing Chains

Overview - Camshaft Timing Chains

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Fig 1: Camshaft Timing Chain Assembly Overview
GWWA15-10394Courtesy of AUDI OF AMERICA, LLC
  1. Bolt
    • Tightening specification: 9 Nm
  2. Chain Tensioner
    • Is under tension
    • Remove the Locking Pin T40011 before removing
  3. Timing Chain Tensioning Rail
  4. Guide Pin
    • Tightening specification: 20 Nm
  5. Bolt
    • Tightening specification: 9 Nm
  6. Control Valve
    • Tightening specification: 35 Nm
    • Left thread
    • Remove using Central Valve Assembly Tool T10352
  7. Bolt
    • Tightening specification: 20 Nm + 90° turn
    • Replacing
  8. Washer
  9. Bearing Bracket
  10. Camshaft Timing Chain Glide Rail
  11. Camshaft Housing
  12. Camshaft Timing Chain
  13. Camshaft Timing Chain Glide Rail
  14. Guide Pin
    • Tightening specification: 20 Nm
  15. Three Stage Chain Sprocket
    • Crankshaft
    • Installed position, refer to Fig 2
Fig 2: Chain Sprocket Crankshaft, Installation Position
GWWA15-10469Courtesy of AUDI OF AMERICA, LLC