11 12 105 Removing and installing left cylinder head (S65)

WARNING: This page is about a different car, the 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

11 2 250

See ENGINE - SPECIAL TOOLS .

Necessary preliminary tasks:

Remove exhaust system. See 18 00 018 REMOVING AND INSTALLING COMPLETE EXHAUST SYSTEM (S65) .
Remove left exhaust manifold. See 18 40 010 REMOVING AND INSTALLING/REPLACING LEFT EXHAUST MANIFOLD (S65) .
Remove left cylinder head cover
Remove left inlet camshaft .
Remove left exhaust camshaft .
Partially unfasten engine wiring harness and lay to one side. See 12 51 001 REPLACING WIRING HARNESS SECTION FOR ENGINE (S65) .
Remove throttle valves from cylinders 5 to 8. See 13 54 045 REMOVING AND INSTALLING/SEALING A THROTTLE VALVE ASSEMBLY (S65) .
Remove thermostat housing .
Remove rear water pipe from cylinder head.

Release screws (1).

Remove water fitting (2).

Installation:

Replace seal.

Fig 1: Identifying Water Fitting And Screws

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Release screws (1).

IMPORTANT: Screws (1) can fall into the chain drive. Risk of damage to the timing chain.

Fig 2: Identifying Cylinder Head Screws

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Remove screw (1) with a magnet from gearcase.

Fig 3: Identifying Screw And Gearcase

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Release cylinder head bolt (1) with special tool 11 2 250 .

Fig 4: Identifying Cylinder Head Bolt

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Release cylinder head bolts from outside to inside in sequence (10 to 1).

Fig 5: Left Cylinder Head Bolts Tightening/Loosening Sequence (S65)

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NOTE: Replace cylinder head gasket.
Check cylinder head for water leaks.

Installation:

Fit new cylinder head screws.

Tighten down cylinder head bolts from inside to outside in sequence (1 to 10).

Tightening torque: 11 12 1AZ . See CYLINDER HEAD .

Fig 6: Left Cylinder Head Bolts Tightening/Loosening Sequence (S65)

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Insert bolts (1).

Fig 7: Identifying Cylinder Head Screws

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Assemble engine.