11 12 000 Removing and installing/sealing cylinder head cover (M57T2-SCR)

Necessary preliminary work:

Remove acoustic cover at rear
Remove all INJECTORS OF FUEL INJECTION SYSTEM (M57T2)

(E70 only)

Release screws (1) (left and right sides)

and remove carrier support cross connection.

Tightening torque, see 51 71 4AZ in 51 71 SEALS AND LOOSE BODY PARTS .

Fig 1: Identifying Carrier Support Cross Connection Screws

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Release banjo bolt (1) on exhaust manifold.

Tightening torque: DIESEL SENDERS FOR CONTROL UNIT

Fig 2: Identifying Banjo Bolt On Exhaust Manifold

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Unlock and disconnect connector (1) on electropneumatic pressure converter.

Detach blue vacuum hose from vacuum unit (turbine control flap).

If necessary, disconnect red vacuum hose from vacuum unit (compressor bypass).

Fig 3: Identifying Electropneumatic Pressure Converter Connector

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Unlock and release connector (1) under vacuum reservoir of EPPT valve.

Fig 4: Identifying Vacuum Reservoir Of EPPT Valve Connector

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Release screws (1) on vacuum reservoir.

Tightening torque: 11 00 2AZ in 11 00 STANDARD SCREW CONNECTION .

Unlock, detach and disconnect connectors (2, 3 and 4).

Release fuel differential-pressure sensor (5) from vacuum reservoir.

Tightening torque: see 13 62 7AZ in 13 62 SENSOR, DDE CONTROL UNIT

Unlock and detach all connectors.

Fig 5: Identifying Vacuum Reservoir Screws, Connectors And Fuel Differential-Pressure Sensor

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Remove vacuum reservoir (1) from stud bolts (2).

Fig 6: Removing Vacuum Reservoir From Stud Bolts

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Feed out vacuum reservoir upwards and to side.

Fig 7: Disconnecting Vacuum Reservoir

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Release screws (1 and 2) and remove vacuum reservoir carrier.

Tightening torque:11 00 2AZ in 11 00 STANDARD SCREW CONNECTION .

Fig 8: Identifying Vacuum Reservoir Carrier Screws

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Unlock EPPT valve (1) from holder (2), slide forwards and remove from retaining plate.

Fig 9: Releasing EPPT Valve From Holder

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Release screws (1).

Tightening torque 11 00 2AZ in 11 00 STANDARD SCREW CONNECTION .

NOTE: EPPT = pressure converter.

Picture shows vacuum unit removed (turbine control flap).

Fig 10: Identifying Retaining Plate And Screws

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Unlock connector (1) and remove.

Detach holder (2) from cylinder head cover.

Fig 11: Identifying Cylinder Head Cover Holder And Connector

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Unlock connections (1 and 2) from heating element and detach.

Fig 12: Identifying Connections Of Heating Element

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On reverse side of cylinder head cover release screw (1) and detach wiring harness towards top.

Fig 13: Identifying Screw On Reverse Side Of Cylinder Head Cover

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Release screw (1) on reverse side of cylinder head cover.

Fig 14: Identifying Screw On Reverse Side Of Cylinder Head Cover

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Release screws (1).

Lay wiring harness for injection system to one side.

Fig 15: Identifying Injection System Screws

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Release screws (1).

Lay rail to one side.

Tightening torque, see 11 00 4AZ in 11 00 STANDARD SCREW CONNECTION .

Release all bolts (arrows).

Tightening torque 11 00 2AZ in 11 00 STANDARD SCREW CONNECTION

Release bolts (2) from inside to outside.

Tightening torque 11 00 2AZ in 11 00 STANDARD SCREW CONNECTION .

Remove cylinder head cover.

Installation note:

First tighten bolts (2) from inside to outside.

Tighten down outer bolts diagonally and evenly.

Fig 16: Locating Cylinder Head Cover Bolts

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Release screws (arrows).

Replace profile seals (1).

Sealing surfaces clean and free of seal debris.

Fig 17: Locating Profile Seals Screws

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Remove gasket debris from sealing surfaces (1) of cylinder head and clean.

Apply a bead of Drei Bond -1209 sealant (refer to BMW Parts Department), approx. 3 mm wide and 2 mm high, in area of joints (2).

Fig 18: Identifying Sealing Surfaces

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Assemble engine.

Observe arrangement of vacuum lines.