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Home >> Audi >> 2014 >> TT Quattro Base, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 73 (2.0L - Cylinder Head, VALVETRAIN - Engine Code(S): CDMA (Roadster)) >> 15 Cylinder Head, VALVETRAIN >> Description And Operation >> Cylinder Head Cover And Cylinder Head Overview

Cylinder Head Cover And Cylinder Head Overview

WARNING: This page is about a different variant/trim than selected.
Fig 1: Identifying Cylinder Head Assembly Overview
GWWA15-10320Courtesy of AUDI OF AMERICA, LLC
  1. Bolt
    • Replace if the seal is damaged
    • Tightening sequence, refer to Fig 2
  2. Cylinder Head Cover
  3. Gasket
    • Replace if damaged or leaking
  4. Pressure Regulator Valve
    • For crankcase ventilation
  5. Cover
  6. Gasket
    • Replace if damaged or leaking
  7. Bolt
    • 4 Nm
  8. Cylinder Head Cover Gasket
    • Replace if damaged or leaking
  9. Vacuum Pump
  10. Bolt
    • 4 Nm
  11. Camshaft Adjustment Valve 1 -N205-
  12. Seal
    • Removing and installing
  13. Bolt
    • 9 Nm
  14. Harness Mount
  15. Seal
    • Replace if damaged or leaking
  16. Bolt
    • 9 Nm
  17. Housing
    • For the drive chain
  18. Gasket
    • Replace
  19. Engine Lifting Eye
  20. Bolt
    • 23 Nm
  21. Threaded Pin
    • 9 Nm
    • For intake manifold
  22. Partition Plate
  23. Cylinder Head Gasket
    • Replace
    • Note installation position: The part number faces the cylinder head
  24. Bolt
    • 9 Nm
  25. Camshaft Position Sensor -G40-
  26. Seal
  27. Threaded Pin
    • 15 Nm
    • For the tensioning roller
  28. Threaded Pin
    • 17 Nm
    • For exhaust manifold
  29. Cylinder Head
    • Removing and Installing, refer to CYLINDER HEAD 
    • Refer toFig 4
    • Refer toFig 5
    • After replacing, change coolant and engine oil
  30. Bolt
Fig 2: Identifying Cylinder Head Cover Bolts Tightening Sequence
GWWN15-10047Courtesy of AUDI OF AMERICA, LLC
-- Tighten the bolts in the following sequence: -1 to 14- in 2 steps:-- Install bolts by hand as far as the stop.-- Tighten to 10 Nm.
Fig 3: Identifying Cylinder Head Bolts Tightening Sequence
GWWA15-0767Courtesy of AUDI OF AMERICA, LLC
-- Tighten bolts in 3 stages in -1 to 10- sequence as follows:-- Tighten to 40 Nm.-- Tighten an additional 90°.-- Tighten an additional 90°.
Fig 4: Identifying Checking Cylinder Head For Distortion
GWWV15-0654Courtesy of AUDI OF AMERICA, LLC

-- Check the cylinder head in several places for distortion using a straight edge and a feeler gauge.

Fig 5: Identifying Cylinder Head Refacing Dimension
GWWA15-0169Courtesy of AUDI OF AMERICA, LLC

Resurfacing cylinder head (face grinding) is only permissible to minimum dimension -a-.