Installing cylinder head cover

Bolts of the cylinder head cover

Fig 1: Cylinder Head Cover Bolts Tightening Sequence

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NOTE: RISK OF DAMAGE
Improper routing of cables and wiring harnesses.
Trapped, crushed or damaged cables may cause short circuits and malfunctions.

Route all cables without abrasions, do not trap and crush.

NOTE: TECHNICAL INFORMATION
Detents, guides and mounting elements must not be damaged or missing.

There must be no oil or grease on sealing surface (1) .

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Replace the screws (1) and sleeves (2) on the cylinder head cover (3) .
Parts: Screws

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Replace gasket (1) .
Parts: Seal

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Feed in and install the seal (1) on the cylinder head cover (2) .

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Check the sealing ring (1) on the oil return line (2) for damage.
If necessary, replace the oil return line (2) .

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Insert and install the cylinder head cover (1) .

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Ensure that the cylinder head cover (1) is installed correctly in the marked area on both high pressure pump brackets (2) .
The cylinder head cover (1) must not rest on both high pressure pump brackets (2) in the marked area.

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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.

Fig 2: Cylinder Head Cover Screws Tightening Sequence

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Tighten all the screws in the sequence (1) to (21) on the cylinder head cover (A) .

TIGHTENING TORQUES SPECIFICATION

Cylinder head cover to cylinder head
M6 Replace screws.	Joining torque	4 Nm

Tighten all the screws in the sequence (1) to (21) on the cylinder head cover (A) .

TIGHTENING TORQUES SPECIFICATION

Cylinder head cover to cylinder head
M6	Angle of rotation	90°

Feed in and install the holder (3) for the differential pressure sensors.

Tighten the screws (2) .

TIGHTENING TORQUES SPECIFICATION

Holder, positive battery cable to cylinder head cover
Self-tapping plastic screw 6 x 18	tightening torque	8 Nm

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Secure clamps (1) .
Feed in and install the wiring harness section (2) for the injectors and the ignition coils.
Secure the clamp (1) .
Feed in and install the wiring harness section (4) for sensor system 2.
Secure clamps (3) .

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Feed in and install the wiring harness section (3) for sensor system 2.
The locks (2) must engage audibly.
Connect and lock the connector (1) to the exhaust camshaft sensor.
The connector (1) must engage audibly.

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Feed in and install the wiring harness section (2) for sensor system 2.
The locks (arrows) must engage audibly.
Connect connectors (1) and lock.
The connector (1) must engage audibly.

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Feed in and install the wiring harness section (2) for sensor system 2.
Secure clamps (1) .

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Feed in and install the wiring harness section (3) for sensor system 2.
Secure clamps (2) .
Connect and lock the connector (1) on the intake camshaft sensor.
The connector (1) must engage audibly.

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Follow-up work

Refer to INSTALLING THE COOLANT RETURNING LINE BETWEEN THE EXHAUST TURBOCHARGER AND THE THERMOSTAT .
Refer to INSTALLING THE COOLANT FEED LINE PART 2 BETWEEN THE AUXILIARY COOLANT PUMP AND EXHAUST TURBOCHARGER .
Refer to FASTENING THE AUXILIARY COOLANT PUMP FOR THE EXHAUST TURBOCHARGER .
Refer to INSTALLING BOTH ACTUATORS .
Refer to PREPARING THE INJECTORS FOR INSTALLATION .
Refer to INSTALLING THE HIGH-PRESSURE RAIL WITH INJECTORS OF THE CYLINDERS 4 TO 6 .
Refer to INSTALLING THE HIGH-PRESSURE RAIL WITH INJECTORS OF THE CYLINDERS 1 TO 3 .
Refer to INSTALLING THE HIGH PRESSURE PUMP FOR CYLINDERS 4 TO 6 .
Refer to INSTALLING THE HIGH PRESSURE PUMP OF CYLINDERS 1 TO 3 .
Refer to INSTALLING THE HIGH PRESSURE LINE BETWEEN THE HIGH PRESSURE PUMP AND THE RAIL FOR CYLINDERS 4 TO 6 .
Refer to INSTALLING THE HIGH PRESSURE LINE BETWEEN THE HIGH-PRESSURE PUMP AND THE HIGH-PRESSURE RAIL FOR CYLINDERS 1 TO 3 .
Refer to INSTALLING FUEL DELIVERY LINE .
Refer to INSTALLING ALL IGNITION COILS .
Refer to FASTENING THE CHARGE AIR CROSSING .
Refer to INSTALLING RIGHT AIR DUCT .
Refer to INSTALLING FAN COWL .
Refer to INSTALLING THE REAR TOP CROSS CONNECTION .
Refer to INSTALLING FRONT CROSS CONNECTION .
Refer to INSTALLING FRONT-END STRUT ON LEFT AND RIGHT .
Refer to INSTALLING THE COVER IN THE ENGINE COMPARTMENT AT TOP LEFT AND RIGHT .
Refer to INSTALLING THE SECOND END PANEL UNDERNEATH .
Refer to INSTALLING THE COWL UPPER PART .
Refer to INSTALLING INTAKE FILTER HOUSING .
Refer to INSTALLING THE STRUT BRACE .
Refer to INSTALLING MOUNT OF HOOD SEAL ON THE LEFT AND RIGHT .
Refer to INSTALLING WINDSHIELD PANEL COVER .
Refer to INSTALLING TENSION STRUT ON SHOCK TOWER .
Refer to INSTALLING LEFT AND RIGHT WIPER ARM .
Refer to INSTALLING THE COVER OF THE ENGINE COMPARTMENT ON THE REAR LEFT .
Refer to INSTALLING THE REAR RIGHT ENGINE COMPARTMENT COVER .
Refer to INSTALLING THE REAR HOOD SEAL .
Refer to INSTALLING THE FRONT SECTION OF THE FRONT WHEEL ARCH COVER .
Refer to INSTALLING THE COVER OF THE STEERING ASSEMBLY .
Refer to INSTALLING THE WHEEL ARCH COVER ON THE FRONT LEFT AND BOTTOM RIGHT .
Refer to ATTACHING THE FRONT LEFT WHEEL .
Refer to PARTIALLY INSTALLING THE FRONT WHEEL ARCH TRIM .
Refer to FILLING THE HIGH-TEMPERATURE COOLING SYSTEM WITH THE VACUUM FILLING EQUIPMENT .
Refer to ACTIVATING VEHICLE-SPECIFIC HIGH-VOLTAGE OR LOW-VOLTAGE VEHICLE ELECTRICAL SYSTEM .
Refer to VENTING THE HIGH-TEMPERATURE COOLANT SYSTEM .
Refer to CHECKING ENGINE OIL LEVEL .
Refer to INSTALLING THE CENTER UNDERBODY PROTECTION .
Refer to INSTALLING FRONT UNDERBODY PROTECTION .
Refer to TAKING HOOD OUT OF THE SERVICE POSITION .