Installing the left cylinder head

There must be no fluids or foreign materials in the cylinder bores, remove if necessary.

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

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Close oil hole in the area (1) with a classification B plug 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 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 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 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 set of special tools 0 495 102 (11 4 470) .

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Apply the sealant (1) as shown on the special tool 2 469 803 .
Parts: Sealant

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SEALING COMPOUND SPECIFICATION

Loctite 5970 liquid sealing compound
Processing time <10 minutes at room temperature

50 ml, Cartridge

83190404517

NOTE: TECHNICAL INFORMATION
The sealing surfaces must be free of oil, grease and cleaning agents.

Apply the prescribed amount of sealant to the separation points °(1) ° in the marked area.

Using more than the recommended amount of sealant may result in leakage.

SEALING COMPOUND SPECIFICATION

Height	4	mm
Diameter	4	mm

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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.

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Position cylinder head with a 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.

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NOTE: TECHNICAL INFORMATION
Work must be carried out carefully in order to avoid component damage.

Insert cylinder head.

NOTE: TECHNICAL INFORMATION

Work must be carried out carefully in order to avoid component damage.

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

Fig 1: Left Cylinder Head Screws Tightening Sequence

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

TIGHTENING TORQUES SPECIFICATION

Cylinder head bolt
M11 Replace screws.	Joining torque	30 Nm
	1. Angle of rotation	90°
	2. Angle of rotation	140°

Detach the special tool 0 490 567 (11 0 020) on the engine mounting bracket (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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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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Fastening cylinder head bolts on timing case cover

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

TIGHTENING TORQUES SPECIFICATION

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

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Mounting the special tool on the processed surface of the camshaft

Pay attention to the installation position:
For the camshaft (1) there are three machined surfaces. The special tool 2 249 117 can only be mounted in the marked position, (arrow).
Mount special tool 2 249 117 .

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Replace sealing ring (1) .
Position sealing ring (1) on the bearing bolt (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 TORQUES SPECIFICATION

Slide rail to cylinder head
Bearing screw	Tightening torque	25 Nm

Install both exhaust manifolds

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NOTE: TECHNICAL INFORMATION
The sealing surfaces must be free of oil, grease and cleaning agents.

NOTE: TECHNICAL INFORMATION
Make sure that there are no particles or impurities in the medium openings. Coolant or foreign substances in the oil can cause engine damage such as damage to the connecting rod bearing.

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NOTE: RISK OF DAMAGE
Careless handling of tools and sharp-edged components.
Scratches, surface damage.

Protect working area.
Handle tools and components carefully.

Clean sealing surfaces (1) .

NOTE: RISK OF DAMAGE
The sealing surfaces must be free of oil, grease and cleaning agents.

NOTE: RISK OF DAMAGE
Make sure that there are no particles or impurities in the medium openings. Coolant or foreign substances in the oil can cause engine damage such as damage to the connecting rod bearing.

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NOTE: RISK OF DAMAGE
Careless handling of tools and sharp-edged components.
Scratches, surface damage.

Protect working area.
Handle tools and components carefully.

Clean sealing surfaces (1) .
Replace seals (1) .
Parts: Seals
Position seals (1) .

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NOTE: TECHNICAL INFORMATION
The seals fit in one installation orientation only. Ensure correct installation.

Install seal (1) with the side of the bead (2) (seal cavity) toward the exhaust manifold (3) .

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Position exhaust manifold (2) .
Replace screws (1) .
Parts: Screws
Tighten down screws (1) .

TIGHTENING TORQUES SPECIFICATION

Exhaust manifold
M8x40 screw Replace screw.	tightening torque	25 Nm
M8x40 screw Replace screw.	Angle of rotation	45°

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Position exhaust manifold (2) .
Replace screws (1) .
Parts: Screws
Tighten down screws (1) .

TIGHTENING TORQUES SPECIFICATION

Exhaust manifold
M8x40 screw Replace screw.	tightening torque	25 Nm
M8x40 screw Replace screw.	Angle of rotation	45°

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Slide the coolant hose on.
Tighten the hose clamp (1) .

TIGHTENING TORQUES SPECIFICATION

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.

Secure the wiring harness mountings (1) below the intake system.

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Follow-up work

Refer to INSTALLING BOTH LEFT VANOS ADJUSTERS (CYLINDER HEAD INSTALLATION CYLINDER BANK 2) .
Refer to INSTALLING THE BELT PULLEY ON THE TORSIONAL VIBRATION DAMPER .
Refer to INSTALLING THE LEFT CYLINDER HEAD COVER .
Refer to INSTALLING FUEL DELIVERY LINE .
Refer to INSTALLING HEAT SHIELD ON THE BOTTOM .
Refer to INSTALLING FRONT HEAT SHIELD .
Refer to INSTALLING BOTH EXHAUST MANIFOLDS .
Refer to INSTALLING THE HEAT SHIELD OF THE CYLINDER HEAD COVER FOR CYLINDERS 5 TO 8 .
Refer to INSTALLING THE HEAT SHIELD OF THE CYLINDER HEAD COVER FOR CYLINDERS 1 TO 4 .
Refer to INSTALLING LEFT AND RIGHT EXHAUST TURBOCHARGERS .
Refer to MOUNTING FIXTURE ON THE RIGHT .
Refer to INSTALLING LEFT MOUNT .
Refer to INSTALLING THE CLEAN AIR PIPE OF CYLINDER BANK 2 .
Refer to INSTALLING CLEAN AIR PIPE OF CYLINDER BANK 1 .
Refer to INSTALLING CATALYTIC CONVERTER NEAR THE ENGINE ABOVE CYLINDER BANK 1 .
Refer to INSTALLING UPPER CATALYTIC CONVERTER NEAR ENGINE FOR BANK 2 .
Refer to INSTALLING HOLDER WITH THE WIRING HARNESS FOR THE SENSOR SYSTEM OF CYLINDER BANK 2 .
Refer to INSTALLING THE HOLDER WITH THE VEHICLE WIRING HARNESS FOR THE SENSOR SYSTEM OF CYLINDER BANK 1 .
Refer to INSTALLING THE LEFT THROTTLE BODY .
Refer to INSTALLING THE INTAKE PIPE .
Refer to INSTALLING THE LEFT-HAND CHARGE AIR COOLER .
Refer to INSTALLING THE RIGHT-HAND CHARGE AIR COOLER .
Refer to INSTALLING OIL FILLER NECK .
Refer to CLOSING THE COOLANT PUMPS .
Refer to INSTALLING THE WHEEL ARCH COVER ON THE FRONT LEFT AND BOTTOM RIGHT .
Refer to INSTALLING THE STIFFENING PLATE .
Refer to REMOVING UNDERBODY PROTECTION AT SIDE RIGHT AND LEFT .
Refer to INSTALLING FRONT UNDERBODY PROTECTION .
Refer to INSTALLING COOLANT PUMPS .
Refer to INSTALLING THE BELT TENSIONER .
Refer to INSTALLING ALTERNATOR .
Refer to INSTALLING DRIVE BELT .
Refer to INSTALLING FAN COWL WITH ELECTRIC MOTOR .
Refer to INSTALLING THE REAR TOP CROSS CONNECTION .
Refer to INSTALLING THE CLEAN AIR PIPE OF CYLINDER BANK 2 .
Refer to INSTALLING CLEAN AIR PIPE OF CYLINDER BANK 1 .
Refer to INSTALLING RIGHT INTAKE SILENCER HOUSING .
Refer to INSTALLING LEFT INTAKE SILENCER HOUSING .
Refer to INSTALLING FRONT CROSS CONNECTION .
Refer to TIGHTENING THE LEFT FRONT-END STRUT .
Refer to TIGHTENING THE FRONT-END STRUT ON THE RIGHT .
Refer to INSTALLING THE CENTER ENGINE COMPARTMENT COVER .
Refer to INSTALLING THE FRONT HOOD SEAL .
Refer to INSTALLING HEAT SHIELD, TOP .
Refer to INSTALLING CONDUIT ON BANK 2 .
Refer to INSTALLING ENGINE VENTILATION LINE OF CYLINDER BANK 1 .
Refer to INSTALLING THE TANK VENTILATION LINE OF CYLINDER BANK 1 PARTIALLY .
Refer to INSTALLING CONDUIT ON BANK 1 .
Refer to INSTALLING THE ENGINE VENTILATION LINE OF CYLINDER BANK 2 .
Refer to INSTALLING THE OXYGEN SENSOR MONITOR OF CYLINDER BANK 2 .
Refer to CHECKING THE POSITION OF THE HEAT SHIELD .
Refer to INSTALLING EXPANSION TANK FOR THE CHARGE AIR COOLER .
Refer to INSTALLING COOLANT EXPANSION TANK .
Refer to INSTALLING THE HOLDER OF THE DME CONTROL UNIT FOR CYLINDERS 5 TO 8 .
Refer to INSTALLING THE LAMBDA OXYGEN SENSOR FOR CYLINDERS 5 TO 8 .
Refer to INSTALLING THE PRIMARY OXYGEN SENSOR FOR CYLINDERS 1 TO 4 .
Refer to INSTALLING THE LEFT HIGH PRESSURE PUMP .
Refer to INSTALLING THE HOLDER WITH THE VEHICLE WIRING HARNESS FOR THE SENSOR SYSTEM OF CYLINDER BANK 1 .
Refer to INSTALLING THE CENTER COWL UPPER PART .
Refer to INSTALLING TENSION STRUT ON SHOCK TOWER .
Refer to ATTACHING 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 INJECTORS .
Refer to CONNECTING THE CONNECTOR OF THE INJECTORS OF CYLINDER BANK 2 .
Refer to INSTALLING RAIL OF CYLINDER BANK 1 .
Refer to INSTALLING IGNITION COILS OF CYLINDER BANK 1 .
Refer to INSTALLING CONTROL UNIT HOLDER FOR CYLINDERS 1 TO 4 .
Refer to INSTALLING THE COVER PANEL OF THE MASTER DME CONTROL UNIT .
Refer to INSTALLING THE COVER PANEL OF THE SLAVE DME CONTROL UNIT .
Refer to INSTALLING ACOUSTIC COVER .
Refer to ACTIVATING VEHICLE ELECTRICAL SYSTEM .
Refer to FILLING THE LOW-TEMPERATURE COOLING SYSTEM WITH THE VACUUM FILLING EQUIPMENT .
Refer to VENTING THE LOW-TEMPERATURE COOLING SYSTEM .
Refer to EVACUATING AND CHARGING CONDITIONING .
Refer to CHECKING ENGINE OIL LEVEL .