Overview - Cylinder Head, Engine Without Wrench Clearance
Replace the cylinder head bolts.
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 fitting the cylinder head.
The engine oil and coolant must be changed if the cylinder head or cylinder head seal are replaced.
- Cylinder Head Gasket
- Replace
- Installed position: the part number faces the cylinder head
- Bolt
- 25 Nm
- Transport Strap
- Bolt
- Cylinder Head
- Removing and installing. Refer to CYLINDER HEAD, REMOVING AND INSTALLING, ENGINE WITHOUT WRENCH CLEARANCE .
- Check for distortion. Refer to Figure
- Cylinder Head Bolt
- O-Ring
- Replace
- Coat with engine oil
- Cam Adjustment Actuator
- Bolt
- 5 Nm
- O-Ring
- Replace
- Lubricate with engine oil
- Sealing Plugs
- 5 Nm
- With ball head for the engine cover
- Cap
- With seal
- O-Ring
- Replace
- Lubricate with engine oil
- Sealing Plugs
- To Intake Manifold
- Heat Shield
- Bolt
- 20 Nm
- Bolt
- 20 Nm
- To Intake Manifold/Turbocharger
- Ventilation Pipe
- O-Ring
- No replacement part
- Seal
- No replacement part
- Engine Cover
- Bolt
- Tightening sequence. Refer to Figure
- Crankcase Ventilation
- Seal
- Replace if damaged.
- Seal
- Replace if damaged.
- Vacuum Pump
- Removing and installing. Refer to HIGH PRESSURE PUMP, REMOVING AND INSTALLING and OVERVIEW - HIGH PRESSURE PUMP .
- Bolt
- Tightening specification. Refer to OVERVIEW - HIGH PRESSURE PUMP .
- Connection
- Retaining Plate
- Bolt
- 9 Nm
- O-Ring
- Replace
- Coat with coolant
- Transport Strap
- Bolt
- 25 Nm
- Bolt
- 9 Nm
- Camshaft Position Sensor -G40-
- Partition Plate
- O-Ring
- Replace
- Lubricate with engine oil
-- Remove the bolts -arrows-.
-- Loosen the cylinder head bolts in the sequence -1 to 10-.
-- Tighten the cylinder head bolts in the sequence -1 to 10- as follows.
-- Partially tighten to 40 Nm using a torque wrench.
-- Turn another 90° using a rigid wrench.
-- Turn another 90° using a rigid wrench.
-- Partially tighten the bolts -arrows- to 8 Nm.
-- Tighten the bolts -arrows- 90° further using a rigid wrench.