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Home >> Volkswagen >> 2021 >> Jetta S, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Cylinder Head, VALVETRAIN [DKFA,CXDB]) >> 15 Cylinder Head, VALVETRAIN >> Cylinder Head >> Overview - Cylinder Head

Overview - Cylinder Head

WARNING: This page is about a different variant/trim than selected.
NOTE:

Replace the cylinder head bolt.

Always replace self-locking nuts, bolts which have been tightened with an additional turn as well as gaskets and seals.

The plastic protectors installed to protect the open valves must only be removed immediately before mounting the cylinder head.

The engine oil and the coolant must be changed if the cylinder head or the cylinder head gasket are being replaced.

Fig 1: Cylinder Head Exploded View
GWWA15-11287Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
  1. Alignment Pin
  2. Cylinder Head Gasket
    • Replace after removing.
    • Installed position: the part number faces the cylinder head
  3. Cylinder Head
  4. Bolt
    • 4 Nm +90°
    • Replace after removing.
    • Follow the procedure when loosening. Refer to Fig 2.
    • Follow the procedure when tightening. Refer to Fig 3.
  5. Heat Shield
  6. Bolt
    • 9 Nm
  7. Bolt
    • 9 Nm
  8. Heat Shield
  9. Bolt
    • 9 Nm
  10. Bolt
    • 9 Nm
  11. Connection
    • For coolant hose
  12. O-Ring
    • Replace after removing.
    • Coat with coolant
  13. Cylinder Head Bolt
    • Replace after removing.
    • Follow the procedure when loosening. Refer to Fig 2.
    • Follow the procedure when tightening. Refer to Fig 3.
  14. O-Ring
    • Replace after removing.
    • Coat with coolant
  15. Connection
    • For coolant hose
  16. Bolt
    • 9 Nm
  17. Mount
    • For the engine cover
  18. Engine Lifting Eye
  19. Bolt
    • 8 Nm +90°
    • Replace after removing.
  20. Partition Plate
  21. Ball Pin
    • For the engine cover
  22. Engine Lifting Eye
  23. Bolt
    • 8 Nm +90°
    • Replace after removing.
  24. Alignment Pin

Loosening the Cylinder Head 

Fig 2: Cylinder Head Loosening Sequence
GWWA15-11209Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Remove the bolts -arrows-.

-- Loosen the cylinder head bolts in the sequence -1 to 10-.

Cylinder Head Tightening Sequence 

Fig 3: Cylinder Head Bolts Tightening Sequence
GWWA15-11210Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Tighten the cylinder head bolts in the sequence -1 to 10- as follows.

Step Screws Tightening Specification/Additional Turn
1. -1 through 10- 40 Nm
2. -1 through 10- 90° additional turn
3. -1 through 10- 90° additional turn
4. Bolts -arrows- 4 Nm
5. Bolts -arrows- 90° additional turn

Cylinder Head, Checking for Distortion 

Fig 4: Check Cylinder Head For Distortions
GWWA15-10931Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Check the cylinder head at several locations for distortion using a : VAS6075  and a feeler gauge.