Overview - Cylinder Head

WARNING: This page is about a different car, the 2021 Volkswagen GTI, 2020 Volkswagen GTI, 2019 Volkswagen GTI, 2018 Volkswagen Golf, and 2018 Volkswagen GTI. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Replace the cylinder head bolt.

Always replace self-locking nuts, bolts which have been tightened to tightening specifications as well as gaskets and O-rings.

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

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Alignment Pin
Cylinder Head Gasket
- Replace after removing
- Installed position: the part number faces the cylinder head
Cylinder Head
- Removing and installing. Refer to CYLINDER HEAD, REMOVING AND INSTALLING .
- Check for distortion. Refer to Fig 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
Heat Shield
Bolt
- 9 Nm
Bolt
- 9 Nm
Heat Shield
Bolt
- 9 Nm
Bolt
- 9 Nm
Connection
- For coolant hose
O-Ring
- Replace after removing
- Coat with coolant
Cylinder Head Bolt
- Replace after removing
- Follow the procedure when loosening. Refer to Fig 2
- Follow the procedure when tightening. Refer to Fig 3
O-Ring
- Replace after removing
- Coat with coolant
Connection
- For coolant hose
Bolt
- 9 Nm
Mount
- For engine cover
Engine Lifting Eye
Bolt
- Replace after removing
- 8 Nm + 90° turn
Partition Plate
Ball Pin
- For engine cover
Engine Lifting Eye
Bolt
- Replace after removing
- 8 Nm + 90° turn
Alignment Pin

Loosening Cylinder Head

Fig 2: Cylinder Head Loosening Sequence

Courtesy 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 Tightening Sequence

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

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

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

Checking Cylinder Head for Distortion

Fig 4: Check Cylinder Head For Distortions

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

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

Maximum permissible distortion: 0.05 mm