11 12 106 Removing And Installing Right Cylinder Head (S85)

Special tools required: 

• 115 210
• 115 220
• 115 351

Necessary preliminary tasks: 

• Remove EXHAUST SYSTEM .
• Remove RIGHT exhaust manifold.
• Unfasten engine wiring harness and lay to one side.
• Remove right  cylinder head cover.
• Remove Right Inlet Camshaft .
• Remove Right Exhaust Camshaft .

Attach special tool 11 5 220.

Insert special tool 115 210.

Unclip linkage (1).

Fig 1: Identifying Special Tool 11 5 220, 115 210 And Linkage

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Do not remove special tool 11 5 351.

Fig 2: Identifying Special Tool 11 5 351

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Release screws (1).

Fig 3: Identifying Screws

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Cylinder head bolt (1) with shim.

Fig 4: Identifying Cylinder Head Bolt

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Release cylinder head bolts from outside to inside in sequence (12 to 1).

Fig 5: Right Cylinder Head Bolts Tightening/Loosening Sequence

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Installation: 

Fit new cylinder head screws.

Tighten down cylinder head bolts from inside to outside in sequence (1 to 12).

Tightening torque, see 11 12 1AZ in CYLINDER HEAD WITH COVER .

Fig 6: Right Cylinder Head Bolts Tightening/Loosening Sequence

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Insert screws (1).

Tightening torque, see 11 12 1AZ in CYLINDER HEAD WITH COVER .

Fig 7: Identifying Screws

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Installation: 

Modifying check valves, refer to memory entries in DME.

In engines where it is not possible to connect check valves, replace the vacuum-controlled check valves with self-opening check valves.

Vacuum lines will then no longer be required.

Fig 8: Identifying Check Valve

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Assemble engine.