Installing the left cylinder head
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.
CAUTION:
Swirling dirt particles caused by compressed air.
Injury hazard!
Injury hazard!
- Collect dirt particles, e.g. when blowing out, use cloth to do so.
- Wear safety goggles.
NOTE:
RISK OF DAMAGE
Damage to guide rails.
The application of great force can damage the guide rails of the timing chain.
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.
NOTE:
RISK OF DAMAGE
Damage to the surface.
The use of metal-cutting tools (e.g., emery cloths) for cleaning surfaces can damage them and lead to leaks and/or engine damage.
Damage to the surface.
The use of metal-cutting tools (e.g., emery cloths) for cleaning surfaces can damage them and lead to leaks and/or engine damage.
- Do not use any metal-cutting tools.
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.
- Check whether there are fluids and foreign materials in the cylinder bores, remove the fluids and foreign materials if necessary.
- Check the fitting sleeves (1)
for a correct fit and damage, replace if necessary.
- Close oil hole in the area (1) with a classification B plug from the set of special tools 2 364 711 .
- Clean sealing surface (1) with special tool 0 495 103 (11 4 471) from set of special tools 0 495 102 (11 4 470)
.
- Clean sealing surface (1) with special tool 0 495 104 (11 4 472) from set of special tools 0 495 102 (11 4 470) .
NOTE:
TECHNICAL INFORMATION
If there are foreign bodies or fluids present in the bores, the tightening torque values can be falsified.
If there are foreign bodies or fluids present in the bores, the tightening torque values can be falsified.
- Clean bores of cylinder head bolts (1)
with compressed air.
- Clean sealing surface (1) with special tool 0 495 103 (11 4 471) from set of special tools 0 495 102 (11 4 470) .
- Clean sealing surface (1) with special tool 0 495 104 (11 4 472) from set of special tools 0 495 102 (11 4 470)
.
- Replace cylinder head gasket (1)
.
Parts: Cylinder head gasket
- Replace screws.
Parts: Screws
- Position cylinder head gasket (1) on the fitting sleeves on the engine block.
If the cylinder head has been reworked, a thicker cylinder head gasket must be installed.
NOTE:
TECHNICAL INFORMATION
The work must be performed with vehicle care to prevent component damage.
The work must be performed with vehicle care to prevent component damage.
- Attach the special tool 0 490 561 (11 0 000) on the retaining tab (1) and on the special tool 0 494 116 (11 8 352) from the set of special tools 0 493 997 (11 8 350).
- Position cylinder head with a workshop crane.
NOTE:
TECHNICAL INFORMATION
The work must be performed with vehicle care to prevent component damage.
The work must be performed with vehicle care to prevent component damage.
- Feed in and install the cylinder head with a workshop crane and 3 support persons carefully.
- When inserting and installing the cylinder head (1) ensure that the slide rails and the timing chains (2) are not damaged.
- Detach the special tool 0 490 567 (11 0 020) on the retaining tab (1) and on the special tool 0 494 116 (11 8 352) from the set of special tools 0 493 997 (11 8 350).
Tightening left cylinder head
Tightening the left cylinder head
- Tighten screws in the order (1) to (10) .
TIGHTENING TORQUE SPECIFICATIONS
| Cylinder head bolt | ||
| M11 Replace screws. |
Joining torque | 30 Nm |
| Angle of rotation | 90° | |
| Angle of rotation | 140° | |
- Release the screws (1) on the special tool 0 494 116 (11 8 352) from the set of special tools 0 493 997 (11 >8 350) from the cylinder head.
- Remove the special tool 0 494 116 (11 8 352) from the set of special tools 0 493 997 (11 8 350) .
- Secure the screws (1)
to the timing case cover.TIGHTENING TORQUE SPECIFICATIONS
Cylinder head bolt to timing case cover M8x30 tightening torque 23 Nm - Replace sealing ring (1)
.
Parts: Sealing ring
- Position sealing ring (1)
on the bearing bolt (2)
.
- Position the slide rail.
- Tighten the screw of the slide rail on the cylinder head of cylinder bank (1) .
TIGHTENING TORQUE SPECIFICATIONS
| Slide rail to cylinder head | ||
| Bearing screw | tightening torque | 25 Nm |
- Slide the coolant hose on.
- Tighten the hose clamp (1) .
TIGHTENING TORQUE SPECIFICATIONS
| Coolant ventilation line | ||
| Hose clamp | tightening torque | 1.5 Nm |
NOTE:
To provide a better overview: Schematic diagram with partially hidden components.
- Secure the wiring harness mountings (1)
below the intake system.
- Connect the quick-release coupling (1) and lock.
- Connect and lock the plug connection of the throttle valve (1)
.
- Connect the connector (1) to the servomotor and lock audibly.
- Connect the connector (2)
to the pressure sensor on the intake plenum and lock it audibly.
- Place the coolant line (1) between the cylinder head and the intake plenum.
- Install the heat shield (2) on the rear of the cylinder head.
- Tighten down screws (1) .
TIGHTENING TORQUE SPECIFICATIONS
| Heat protection plate | ||
| M6x16 | tightening torque | 10 Nm |
Follow-up work
- Refer to INSTALLING BOTH LEFT VANOS ADJUSTERS .
- Refer to REMOVING SPECIAL TOOL TO PRETENSION TIMING CHAIN ON CYLINDER BANK 2 .
- Refer to INSTALLING THE HYDRAULIC CHAIN TENSIONER OF CYLINDER BANK 2 .
- Refer to INSTALLING THE SEALING CAP ON THE CYLINDER HEAD OF CYLINDER BANK 2 .
- Refer to INSTALLING THE LEFT CYLINDER HEAD COVER .
- Refer to INSTALLING THE PRESSURE LINE BETWEEN THE EVAPORATOR AND AIR CONDITIONING CONDENSER .
- Refer to INSTALLING OIL FEED LINE ON EXHAUST TURBOCHARGER CYLINDERS 5 TO 8 .
- Refer to INSTALLING VANOS SOLENOID ACTUATOR, INTAKE OF CYLINDER BANK 2 .
- Refer to INSTALLING THE VANOS SOLENOID ACTUATOR EXHAUST OF CYLINDER BANK 2 .
- Refer to INSTALLING THE LEFT HIGH PRESSURE PUMP .
- Refer to INSTALLING FUEL DELIVERY LINE .
- Refer to INSTALLING THE INJECTORS FOR THE CYLINDERS 5 TO 8 .
- Refer to INSTALLING THE HIGH-PRESSURE RAIL ON THE LEFT .
- Refer to INSTALLING THE IGNITION COILS OF CYLINDER BANK 2 .
- Refer to INSTALLING THE IGNITION COILS OF CYLINDERS 1 AND 5 .
- Refer to INSTALLING BOTH EXHAUST TURBOCHARGERS .
- Refer to INSTALLING THE CLEAN AIR PIPE OF CYLINDER BANK 2 .
- Refer to INSTALLING CLEAN AIR PIPE OF CYLINDER BANK 1 .
- Refer to INSTALLING BOTH CHARGE AIR COOLERS .
- Refer to CONNECTING THE RIGHT CHARGE AIR LINE TO THE EXHAUST TURBOCHARGER .
- Refer to CONNECTING THE LEFT CHARGE AIR LINE TO THE EXHAUST TURBOCHARGER .
- Refer to CLOSING THE HIGH-TEMPERATURE COOLANT CIRCUIT .
- Refer to INSTALLING THE COOLANT EXPANSION TANK FOR THE LOW-TEMPERATURE COOLANT CIRCUIT (CHARGE AIR COOLER) .
- Refer to SEALING OFF COOLANT FOR LOW-TEMPERATURE COOLANT CIRCUIT .
- Refer to INSTALLING COOLANT PUMPS .
- Refer to INSTALLING THE UNDERBODY PROTECTION OF THE STEERING GEAR OR THE FRONT THRUST FIELD .
- Refer to INSTALLING THE FRONT UNDERBODY PROTECTION OR FRONT THRUST FIELD .
- Refer to INSTALLING THE FRONT LEFT BOTTOM WHEEL ARCH COVER .
- Refer to INSTALLING THE FRONT BOTTOM RIGHT WHEEL ARCH COVER .
- Refer to INSTALLING DRIVE BELT .
- Refer to INSTALLING FAN COWL .
- Refer to INSTALLING THE REAR TOP CROSS CONNECTION .
- Refer to INSTALLING FRONT CROSS CONNECTION (FRONT-END STRUT REMOVED) .
- Refer to INSTALLING BOTH FRONT-END STRUTS .
- Refer to INSTALLING THE COVER OF THE ENGINE COMPARTMENT CENTER .
- Refer to INSTALLING THE CATALYTIC CONVERTER FOR CYLINDERS 5 TO 8 .
- Refer to RELEASING THE HEAT SHIELD .
- Refer to INSTALLING THE CENTER COWL UPPER PART .
- Refer to INSTALLING TENSION STRUT ON SHOCK TOWER .
- Refer to INSTALLING WINDSHIELD PANEL COVER .
- Refer to INSTALLING LEFT AND RIGHT WIPER ARM .
- Refer to INSTALLING THE REAR RIGHT ENGINE COMPARTMENT COVER .
- Refer to INSTALLING THE COVER OF THE ENGINE COMPARTMENT ON THE REAR LEFT .
- Refer to INSTALLING RIGHT HEAT SHIELD .
- Refer to INSTALLING LEFT HEAT SHIELD .
- Refer to INSTALLING HEAT SHIELD, TOP .
- Refer to INSTALLING THE RIGHT OXYGEN SENSOR MONITOR .
- Refer to INSTALLING THE LEFT OXYGEN SENSOR MONITOR .
- Refer to PARTIALLY INSTALLING THE RIGHT LAMBDA OXYGEN SENSOR .
- Refer to PARTIALLY INSTALLING THE LEFT LAMBDA OXYGEN SENSOR .
- Refer to INSTALLING THE RETAINING BRIDGE IN VEHICLES WITH A GASOLINE PARTICULATE FILTER .
- Refer to INSTALLING THE RETAINING BRIDGE .
- Refer to INSTALLING EXHAUST SYSTEM .
- Refer to INSTALLING THE CONNECTING SUPPORTS ON THE TUNNEL .
- Refer to IF INSTALLED: INSTALLING THE TORSION STRUT ON THE RIGHT, AND ON THE LEFT WHERE REQUIRED .
- Refer to INSTALLING THE REAR DIFFUSER .
- Refer to INSTALLING THE CONTROL UNIT BRACKET FOR CYLINDERS 5 TO 8 .
- Refer to INSTALLING THE COVER OF THE LEFT DME CONTROL UNIT .
- Refer to INSTALLING CONTROL UNIT HOLDER FOR CYLINDERS 1 TO 4 .
- Refer to INSTALLING THE COVER OF THE RIGHT DME CONTROL UNIT .
- Refer to CONNECTING ALL BATTERY GROUND LEADS .
- Refer to FILLING AND VENTING THE LOW-TEMPERATURE COOLANT CIRCUIT .
- Refer to FILLING AND VENTING THE HIGH-TEMPERATURE COOLANT CIRCUIT .
- Refer to EVACUATING AND CHARGING CONDITIONING .