11 12 005 Removing and Installing/Sealing Left Cylinder Head Cover (N63)

Special Tools Required:

Necessary Preliminary Tasks:

Remove ACOUSTIC COVER .
Disconnect NEGATIVE BATTERY TERMINAL .
Remove Left CHARGE AIR COOLER .
Remove INTAKE FILTER HOUSING .
Remove Expansion Tank. See COOLANT EXPANSION TANK, INTERCOOLER EXPANSION TANK, and EXPANSION TANK FOR CHARGE AIR COOLER .
Remove Coolant Pipe From Cylinder Head Cover (E71 Only)
Remove Coolant Valve for Heater Feed Line
Disconnect FUEL FEED LINE .
Detach Wiring Harness for Injectors and Lay To One Side
Remove IGNITION COILS , Cylinders 5-8
Remove INJECTORS , Cylinders 5-8
Remove HIGH-PRESSURE PUMP .

Release Bolts In Sequence (17 To 1).

Remove Cylinder Head Cover.

Fig 1: Left Cylinder Head Cover Bolts Tightening/Loosening Sequence (N63)

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Clean Sealing Surface (1) with Special Tool 11 4 470 .

Installation Note:

Replace Seal (2).

Fig 2: Identifying Sealing Surface and Seal

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Installation Note:

Replace Profile Seal of Cylinder Head Cover.

Fig 3: Locating Profile Seal

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Installation Note:

It Is Important To Join Screw (1) for Exact Positioning of The Camshaft Sensors.

Fit Cylinder Head Cover.

Position Screw (1).

Release Screw (1) By 90°.

Fig 4: Identifying Screw

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Secure Cylinder Head Cover In Sequence (1 To 17) In Two Work Steps.

Tightening torque 11 12 3AZ .

Fig 5: Left Cylinder Head Cover Bolts Tightening/Loosening Sequence (N63)

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble Engine.