Installing the cylinder head (engine removed)
CAUTION:
Heavy component.
Heavy components can lead to injury or damage.
Heavy components can lead to injury or damage.
- Remove and install heavy components with the aid of another person/other persons.
NOTE:
RISK OF DAMAGE
Damage to threads.
Fluids in the threaded hole can damage the thread if screws in it are tightened.
Damage to threads.
Fluids in the threaded hole can damage the thread if screws in it are tightened.
- Dry threaded holes (e.g. using compressed air).
NOTE:
TECHNICAL INFORMATION
Do not remove screw coating.
Do not remove screw coating.
NOTE:
TECHNICAL INFORMATION
When replacing the cylinder head: The complete valve timing and the Valvetronic servomotor are already pre-assembled for new cylinder heads.
When replacing the cylinder head: The complete valve timing and the Valvetronic servomotor are already pre-assembled for new cylinder heads.
- Position the cylinder head (1) on the special tool 0 490 561 (11 0 000)and on the workshop crane
.NOTE: RISK OF DAMAGE
Damage to guide rails.
The application of great force can damage the guide rails of the timing chain.- When removing and installing the cylinder head, make sure that the cylinder head does not damage the guide rail.
- Guide in and install the cylinder head (1) carefully using the workshop crane and the special tool 0 490 561 (11 0000).
- Replace cylinder head bolts (1)
to (10)
.
Parts: Cylinder head bolts
- Do not wash off the coating on cylinder head bolts (1) to (10) .
- Lightly
oil the contact surfaces of the screw heads of the cylinder head bolts (1)
to (10)
.
There must be no coolant, water or engine oil present in the threaded holes of the engine block.
NOTE: TECHNICAL INFORMATION
When assembling, it is essential to observe screwing sequences and tightening torques.
Failure to comply with the regulations can lead to leaks and damage. - Insert and install cylinder head bolts (1) to (10) .
- Screw in the cylinder head bolts in the sequence (1) to (10) .
- Tighten the cylinder head bolts with the special tools 0 490 504 (00 9 120)and 0 495 747 (11 8 580)in the
sequence (1)
to (10)
.TIGHTENING TORQUE SPECIFICATIONS
Cylinder head to crankcase M11 Observe tightening sequence!
Fit new cylinder head bolts.1. Joining torque 30Nm 2. Angle of rotation 90° 3. Angle of rotation 180° - Replace cylinder head bolts (1)
to (5)
.
Parts: Cylinder head bolts
- Ensure that there is no coolant, water or engine oil present in the threaded holes of the timing case cover.
- Tighten the cylinder head bolts in the sequence (1)
to (5)
.TIGHTENING TORQUE SPECIFICATIONS
Cylinder head bolt to timing case cover M8x40
Replace screws.Tightening torque 19Nm - Insert and install the camshaft sensor wheel (3) .
- Ensure that the camshaft sensor wheel (3) is correctly positioned on the guide pin (4) .
- Affix the intake camshaft with an open-end wrench (1) .
- Tighten down screw (2)
.TIGHTENING TORQUE SPECIFICATIONS
Camshaft sensor wheel to intake camshaft M6x16 Replace screw. 1. Tightening torque 5 Nm 2. Angle of rotation 90° - Position the guide rail (2) .
- Replace bearing journal (1)
.
Parts: Bearing journal
- Thread in the bearing journals (1) and install.
- Make sure that the bearing journal (1) is correctly installed in the guide rail (2) .
- Tighten the bearing pin (1)
to the guide rail (2)
.TIGHTENING TORQUE SPECIFICATIONS
Bearing journal to cylinder head Bearing journal Replace the bearing journal! Tightening torque 22Nm - Insert slide rail (2) and install.
- Tighten down screws (1)
.TIGHTENING TORQUE SPECIFICATIONS
Sliding rail to cylinder head M6x16 8Nm - Insert and position the wiring harness section (2) for sensor system 1.
- Tighten down screws (1)
.TIGHTENING TORQUE SPECIFICATIONS
Wiring harness section for sensor system 1 to cylinder head Screw M 6 Tightening torque 8Nm - Feed in ground cable (4) and position.
- Tighten down screw (3)
.TIGHTENING TORQUE SPECIFICATIONS
Ground cable to cylinder head M6X16 Tightening torque 8Nm - Feed in and install coolant line (1)
.
- Insert and Install the holder (2) .
- Make sure that the lock (1)
engages audibly.
- Insert and Install the holder (2) .
- Tighten down screw (1)
.
- Connect and lock the coolant line (1) to the cylinder head.
- Make sure that the coolant line (1) engages audibly.
- Connect the connector (2) to the coolant temperature sensor and lock It.
- Ensure that the connector (2)
audibly engages on the coolant temperature sensor.
- Feed in and install coolant line (2) .
- Tighten down screws (1)
.TIGHTENING TORQUE SPECIFICATIONS
Coolant line to coolant pump/cylinder head M6x20 Tightening torque 8Nm - Loosen the screws (1) from the special tool 2 459 012
- Guide the special tool 2 459 012 out and remove.
CAUTION:
Heavy component.
Heavy components can lead to injury or damage.
Heavy components can lead to injury or damage.
- Remove and install heavy components with the aid of another person/other persons.
NOTE:
RISK OF DAMAGE
Damage to threads.
Fluids in the threaded hole can damage the thread if screws in it are tightened.
Damage to threads.
Fluids in the threaded hole can damage the thread if screws in it are tightened.
- Dry threaded holes (e.g. using compressed air).
NOTE:
TECHNICAL INFORMATION
Do not remove screw coating.
Do not remove screw coating.
NOTE:
TECHNICAL INFORMATION
When replacing the cylinder head: The complete valve timing and the Valvetronic servomotor are already pre-assembled for new cylinder heads.
When replacing the cylinder head: The complete valve timing and the Valvetronic servomotor are already pre-assembled for new cylinder heads.
- Position the cylinder head (1) on the special tool 0 490 561 (11 0 000)and on the workshop crane
.NOTE: Schematic diagram is for example purposes. Some parts may differ in certain details.NOTE: RISK OF DAMAGE
Damage to guide rails.
The application of great force can damage the guide rails of the timing chain.- When removing and installing the cylinder head, make sure that the cylinder head does not damage the guide rail.
- Guide in and install the cylinder head (1) carefully using the workshop crane and the special tool 0 490 561 (11 0 000).
- Replace the cylinder head bolts (1)
to (8)
.
Parts: Cylinder head bolts
- Do not wash off the coating on the cylinder head bolts (1) to (8) .
- Oil the contact surfaces of the screw heads of cylinder head bolts (1)
to (8) lightly.
All the threaded holes in the engine block must not have any coolant, water or engine oil.
NOTE: TECHNICAL INFORMATION
When assembling, it is essential to observe screwing sequences and tightening torques.
Failure to comply with the regulations can lead to leaks and damage. - Guide in and install the cylinder head bolts (1) to (8) .
- Screw in the cylinder head bolts in the sequence (1) to (8) .
- Tighten the cylinder head bolts with the special tools 0 490 504 (00 9 120)and 0 495 747 (11 8 580)in the
sequence (1)
to (8)
.TIGHTENING TORQUE SPECIFICATIONS
Cylinder head to crankcase M11
Observe tightening sequence!
Fit new cylinder head bolts.1. Joining torque 30Nm 2. Angle of rotation 90° 3. Angle of rotation 180° - Tighten the cylinder head bolts in the sequence (1)
to (5)
.TIGHTENING TORQUE SPECIFICATIONS
Cylinder head bolt to timing case cover M8x40
Replace screws.Tightening torque 19Nm - Insert and install the camshaft sensor wheel (3) .
- Ensure that the camshaft sensor wheel (3) is correctly positioned on the guide pin (4) .
- Affix the intake camshaft with an open-end wrench (1) .
- Tighten down screw (2)
.TIGHTENING TORQUE SPECIFICATIONS
Camshaft sensor wheel to intake camshaft M6x16 Tightening torque 8Nm - Position the guide rail (2) .
- Replace bearing journal (1)
.
Parts: Bearing journal
- Thread in the bearing journals (1) and install.
- Make sure that the bearing journal (1) is correctly installed in the guide rail (2) .
- Tighten the bearing pin (1)
to the guide rail (2)
.TIGHTENING TORQUE SPECIFICATIONS
Bearing journal to cylinder head Bearing journal Replace the bearing journal! Tightening torque 20Nm - Insert slide rail (2) and install.
- Tighten down screws (1)
.TIGHTENING TORQUE SPECIFICATIONS
Sliding rail to cylinder head M6x16 8Nm - Insert and position the wiring harness section (2) for sensor system 1.
- Tighten down screws (1)
.TIGHTENING TORQUE SPECIFICATIONS
Wiring harness section for sensor system 1 to cylinder head M6X16 Tightening torque 8Nm - Feed in ground cable (4) and position.
- Tighten down screw (3)
.TIGHTENING TORQUE SPECIFICATIONS
Ground cable to cylinder head M6x12 Tightening torque 8Nm - Feed in and install coolant line (1)
.
- Insert and install the holder (2) .
- Make sure that the lock (1)
engages audibly.
- Connect and lock the coolant line (1) to the cylinder head.
- Make sure that the coolant line (1) engages audibly.
- Connect and lock connector (2) on the coolant temperature sensor.
- Ensure that the connector (2)
audibly engages on the coolant temperature sensor.
- Feed in and install coolant line (2) .
- Tighten down screws (1)
.TIGHTENING TORQUE SPECIFICATIONS
Coolant line to coolant pump/cylinder head M6x20 Tightening torque 8Nm NOTE: Schematic diagram is for example purposes. Some parts may differ in certain details. - Tighten down screws (1)
.TIGHTENING TORQUE SPECIFICATIONS
Engine mount to cylinder head M10X45 Tightening torque 41Nm - Tighten down screws (1)
.TIGHTENING TORQUE SPECIFICATIONS
Right engine mount to cylinder head M10
Replace screws.Joining torque 40Nm Angle of rotation 90° - Disassemble the special tool 2 414 691 with the special tool 2 357 071.
- Loosen the screws (1) from the special tool 2 459 012
- Guide the special tool 2 459 012 out and remove.