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Home >> Audi >> 2018 >> S3 Premium Plus >> Repair and Diagnosis >> External Pages >> Different car >> Section 42 (CYLINDER HEAD, VALVETRAIN (4-Cylinder 2.0L 4V TFSI Engine) -- (A3 SEDAN)) >> 15 Cylinder Head, VALVETRAIN >> Cylinder Head >> Overview - Cylinder Head >> Notes

Overview - Cylinder Head: Notes

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Fig 1: Exploded View Of Cylinder Head Components
GWWA15-11287Courtesy of AUDI OF AMERICA, LLC
  1. Alignment Pin
    • Quantity: 2
  2. Cylinder Head Gasket
    • Always replace after removing
    • Installed position: the part number faces the cylinder head
    • Change the coolant and engine oil after replacing
  3. Cylinder Head
  4. Bolt
    • Tightening specification and sequence. Refer to Fig 3.
    • Always replace after removing
    • Loosening. Refer to Fig 2.
  5. Heat Shield
    • Equipped on some models
  6. Bolt
    • 9 Nm 
  7. Bolt
    • 9 Nm
  8. Heat Shield
    • There are different versions. Refer to the parts information for the allocation.
  9. Bolt
    • 9 Nm 
  10. Bolt
    • 9 Nm 
  11. Connection
    • For coolant hose
  12. O-ring
    • Always replace after removing
    • Coat with coolant
  13. Bolt
    • Tightening Specifications and Sequence. Refer to Fig 3.
    • Always replace after removing
    • Loosening. Refer to Fig 2.
  14. O-ring
    • Always 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
    • 10 Nm + 90° 
    • Always replace after removing
  20. Partition Plate
  21. Ball Pin
    • For the engine cover
  22. Engine Lifting Eye
  23. Bolt
    • 10 Nm + 90° 
    • Always replace after removing
  24. Alignment Pin
Fig 2: Loosening Cylinder Head Bolts In Sequence
GWWA15-11209Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -arrows-.

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

Fig 3: Cylinder Head Bolts Tightening Sequence
GWWA15-11210Courtesy of AUDI OF AMERICA, LLC
NOTE:

The strength category of the bolts is specified on the bolt head.