Install exhaust camshaft

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Coat all bearing positions (1) with fresh motor oil.

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Make sure that the roller cam follower (1) is fitted correctly before installing the exhaust camshaft.
Coat exhaust camshaft and exhaust camshaft bearing cap with fresh motor oil.

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Insert exhaust camshaft in the cylinder head, such that the mark (1) points upwards .

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

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NOTE: TECHNICAL INFORMATION
The camshaft bearing caps must not be mixed up. The camshaft bearing caps must be installed in the installation position from which they were removed.

Position all exhaust camshaft bearing caps on the cylinder head.

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NOTE: The exhaust camshaft bearing caps are legibly labeled from the intake side and marked with A1, A2 and A.

NOTE: Exhaust camshaft bearing cap A is a thrust bearing.

Coat both bearing positions at the high-pressure pump bracket with fresh motor oil.
Feed in and position high pressure pump bracket (2) with the roller tappet (1) .

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Check the tensile strength of the screws for the bearing caps.

The illustration shows the screw with a tensile strength of 8.8 .

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Check the tensile strength of the screws for the bearing caps.

The illustration shows the screw with a tensile strength of 10.9 .

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NOTE: TECHNICAL INFORMATION
The camshaft is under tension due to the valve springs. Tighten or loosen each screw on the camshaft bearing caps in the prescribed sequence only by half a turn. Repeat procedure.

Fig 1: Exhaust Camshaft Bearing Caps Screws Tightening Sequence

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Press the exhaust camshaft bearing cap down and hand-tighten the bolts incrementally in sequence (1) to (10) .
Join all the exhaust camshaft bearing caps in half turns in the sequence (1) to (10) .
Observe the joining torque .
Tighten all exhaust camshaft bearing cap bolts in the sequence (1) to (10) .

TIGHTENING TORQUE SPECIFICATIONS

Exhaust camshaft to cylinder head
M6 Tensile strength of screw 8.8	Joining torque	9.6 Nm
M6 Tensile strength of screw 8.8	tightening torque	9.6 Nm
M6 Tensile strength of screw 10.9	Joining torque	11.8 Nm
M6 Tensile strength of screw 10.9	tightening torque	11.8 Nm

Follow-up work

Refer to ADJUSTING THE CAMSHAFTS WITH THE SPECIAL TOOL .
Refer to INSTALLING EXHAUST CAMSHAFT ADJUSTER .
Refer to INSTALLING THE VANOS CENTRAL VALVE OF THE EXHAUST CAMSHAFT ADJUSTER .
Refer to RELEASING THE VANOS CENTRAL VALVE OF THE INTAKE ADJUSTER .
Refer to INSTALLING THE VANOS CENTRAL VALVE OF THE INTAKE ADJUSTER .
Refer to PRE-TENSIONING THE TIMING CHAIN WITH THE SPECIAL TOOL .
Refer to TIGHTENING THE VANOS CENTRAL VALVE OF THE INTAKE ADJUSTER .
Refer to TIGHTENING THE VANOS CENTRAL VALVE OF THE EXHAUST CAMSHAFT ADJUSTER .
Refer to DISASSEMBLING ALL SPECIAL TOOLS .
Refer to INSTALLING CHAIN TENSIONER .
Refer to CHECKING THE TIMINGS OF THE CAMSHAFT .
Refer to INSTALLING CYLINDER HEAD COVER .
Refer to ROTATING THE CAM OF THE HIGH-PRESSURE PUMP DRIVE TO THE BDC POSITION .
Refer to INSTALLING HIGH PRESSURE PUMP .
Refer to INSTALLING BOTH ACTUATORS .
Refer to PREPARING THE INJECTORS FOR INSTALLATION .
Refer to INSTALLING INJECTORS .
Refer to INSTALLING THE HIGH-PRESSURE LINE BETWEEN THE HIGH-PRESSURE RAIL AND THE HIGH-PRESSURE PUMP .
Refer to INSTALLING ALL SPARK PLUGS .
Refer to INSTALLING THE IGNITION COILS .
Refer to INSTALLING THE HEAT SHIELD ON THE EXHAUST TURBOCHARGER, TOP .
Refer to INSTALLING THE OXYGEN SENSOR MONITOR .
Refer to INSTALLING LAMBDA OXYGEN SENSOR .
Refer to PREPARING FOR THE INSTALLATION OF THE CLEAN AIR PIPE .
Refer to INSTALLING CLEAN AIR PIPE .
Refer to IF INSTALLED: PARTIALLY INSTALLING ENGINE VENTILATION LINE .
Refer to INSTALLING THE REAR BULKHEAD .
Refer to INSTALLING THE UPPER FIREWALL COVER PANEL .
Refer to INSTALLING THE STRUT BRACE .
Refer to INSTALLING THE FRONT RIGHT WHEEL ARCH COVER .
Refer to INSTALLING THE FRONT RIGHT WHEEL .
Refer to INSTALLING THE FRONT UNDERBODY PROTECTION .
Refer to CONNECTING THE BATTERY EARTH LEAD .
Refer to INSTALLING ACOUSTIC COVER .
Refer to CHECKING ENGINE OIL LEVEL .