Installing the left cylinder head

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CAUTION: Heavy component .
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!

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 .

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 .

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 if there are fluids or foreign materials present in the cylinder bores, remove fluids or foreign materials where required.

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Check the fitting sleeves (1) for correct seating and damage and replace if necessary.

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Close the oil hole in the area (1) with a plug of the classification B from the set of special tools 2 364 711 .

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Clean sealing surface (1) with special tool 0 495 103 (11 4 471) from the set of special tools 0 495 102 (11 4 470) .

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Clean sealing surface (1) with special tool 0 495 104 (11 4 472) from the set of special tools 0 495 102 (11 4 470) .

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NOTE: TECHNICAL INFORMATION
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.

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Clean sealing surface (1) with special tool 0 495 103 (11 4 471) from the set of special tools 0 495 102 (11 4 470) .

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Clean sealing surface (1) with special tool 0 495 104 (11 4 472) from the set of special tools 0 495 102 (11 4 470) .

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Replace cylinder head gasket (1).
Parts: Cylinder head gasket
Replace screws.
Parts: screw
Position cylinder head gasket (1) on the fitting sleeves on the engine block.
If the cylinder head was reworked, then a thicker cylinder head gasket is to be installed .

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NOTE: TECHNICAL INFORMATION
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.

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NOTE: TECHNICAL INFORMATION
The work must be performed with vehicle care to prevent component damage.
Carefully insert the cylinder head with the help of a workshop crane and 3 auxiliary persons and install it.
When feeding in and installing the cylinder head (1), make sure that the slide rails and timing chain (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).

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Tightening left cylinder head

Tightening the left cylinder head

Fig 1: Cylinder Head Screws Tightening Sequence

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Tighten screws in the order (1) to (10).

TIGHTENING TORQUE SPECIFICATIONS

Cylinder head bolt
M11 Replace screws.	Joining torque	30 Nm
	1. Angle of rotation	90°
	2. 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).

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Secure the screws (1) to the timing case cover.

TIGHTENING TORQUE SPECIFICATIONS

Cylinder head bolt to timing case cover
M8x30	tightening torque	23 Nm

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Replace sealing ring (1).
Parts: Sealing ring
Position sealing ring (1) on the bearing screw (2).

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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

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Slide on the coolant hose.

Tighten the hose clamp (1).

TIGHTENING TORQUE SPECIFICATIONS

Coolant ventilation line
Hose clamp	Tightening torque	1.5 Nm

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NOTE: To provide a better overview: Schematic diagram with partially hidden components.

Attach the wiring harness mountings (1) below the intake plenum (2).

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Connect the connector (1) to the servomotor and lock audibly.
Connect the connector (2) to the pressure sensor on the intake plenum and lock audibly.

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Route the coolant line (1) between cylinder head and intake plenum.

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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

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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 VANOS SOLENOID ACTUATOR EXHAUST OF CYLINDER BANK 2 .
Refer to INSTALLING VANOS SOLENOID ACTUATOR, INTAKE OF CYLINDER BANK 2 .
Refer to INSTALLING FUEL DELIVERY LINE .
Refer to SECURING THE WIRING HARNESS SECTION FROM THE CYLINDER HEAD COVER ON THE LEFT .
Refer to INSERT THE EXHAUST TURBOCHARGER FOR THE CYLINDERS 5 TO 8 .
Refer to INSTALLING THE ENGINE VENTILATION LINE OF CYLINDERS 5 TO 8 .
Refer to INSTALLING THE INTAKE PIPE OF THE ENGINE VENTILATION LINE .
Refer to INSTALLING THE BELT PULLEY ON THE TORSIONAL VIBRATION DAMPER .
Refer to INSTALLING THE BELT TENSIONER .
Refer to INSTALLING COOLANT PUMPS .
Refer to REMOVING DRIVE BELT .
Refer to INSTALLING RIGHT CLEAN AIR PIPE .
Refer to INSTALLING LEFT CLEAN AIR PIPE .
Refer to PARTIALLY INSTALLING LEFT ENGINE VENTILATION LINE .
Refer to INSTALLING THE COOLANT EXPANSION TANK FOR THE LOW-TEMPERATURE COOLANT CIRCUIT .
Refer to INSTALLING THE RIGHT-HAND CHARGE AIR COOLER .
Refer to INSTALLING THE LEFT-HAND CHARGE AIR COOLER .
Refer to CONNECTING THE LEFT CHARGE AIR LINE TO THE EXHAUST TURBOCHARGER .
Refer to CONNECTING THE RIGHT CHARGE AIR LINE TO THE EXHAUST TURBOCHARGER .
Refer to CONNECTING THE COOLANT HOSE TO THE AUXILIARY COOLANT PUMP .
Refer to INSTALLING FRONT UNDERBODY PROTECTION .
Refer to INSTALLING THE CARRIER PLATE .
Refer to INSTALLING THE CATALYTIC CONVERTER OF CYLINDERS 5 TO 8 .
Refer to INSTALLING THE RIGHT OXYGEN SENSOR MONITOR .
Refer to INSTALLING THE LEFT OXYGEN SENSOR MONITOR .
Refer to INSTALLING HEAT SHIELD, TOP .
Refer to INSTALLING THE LEFT INTAKE SILENCER BRACKET .
Refer to INSTALLING THE LEFT LAMBDA OXYGEN SENSOR .
Refer to INSTALLING THE RIGHT LAMBDA OXYGEN SENSOR .
Refer to INSTALLING EXHAUST SYSTEM .
Refer to INSTALLING THE LEFT AND RIGHT REAR DIFFUSER .
Refer to INSTALLING THE REAR LEFT AND RIGHT TENSION STRUT .
Refer to INSTALLING THE LEFT AND RIGHT UNDERSHIELD (TANK COVER) .
Refer to CONNECTING THE COOLANT HOSES TO THE HIGH-TEMPERATURE COOLANT RADIATOR .
Refer to PREPARING THE INJECTORS FOR INSTALLATION .
Refer to INSTALLING THE INJECTORS FOR THE CYLINDERS 5 TO 8 .
Refer to CONNECTING THE CONNECTOR OF THE INJECTORS OF CYLINDER BANK 2 .
Refer to INSTALLING THE LEFT HIGH PRESSURE PUMP .
Refer to INSTALLING THE HIGH-PRESSURE RAIL ON THE LEFT .
Refer to INSTALLING THE SOUND INSULATION OF THE INJECTORS, LEFT .
Refer to INSTALLING FAN COWL .
Refer to INSTALLING THE REAR TOP CROSS CONNECTION .
Refer to INSTALLING THE RIGHT AND LEFT UNFILTERED-AIR DUCT .
Refer to INSTALLING THE IGNITION COILS OF CYLINDER BANK 2 .
Refer to INSTALLING THE LEFT INTAKE SILENCER BRACKET .
Refer to INSTALLING IGNITION COIL ON CYLINDER 1 .
Refer to INSTALLING THE RIGHT INTAKE SILENCER BRACKET .
Refer to INSTALLING BOTH INTAKE FILTER HOUSING .
Refer to INSTALLING ACOUSTIC COVER .
Refer to INSTALLING TENSION STRUT ON LEFT AND RIGHT SHOCK TOWER .
Refer to INSTALLING UPPER CROSS CONNECTION .
Refer to INSTALLING THE COVER IN THE ENGINE COMPARTMENT AT TOP LEFT , and INSTALLING THE COVER IN THE ENGINE COMPARTMENT ON THE TOP RIGHT .
Refer to INSTALLING FRONT UNDERBODY PROTECTION .
Refer to CONNECTING ALL BATTERY GROUND LEADS .
Refer to FILLING THE HIGH-TEMPERATURE COOLING SYSTEM WITH THE VACUUM FILLING EQUIPMENT .
Refer to VENTING THE HIGH-TEMPERATURE COOLANT SYSTEM .