11 12 100 Removing and installing the cylinder head (M57T2-SCR)

WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

Necessary preliminary tasks:

IMPORTANT: Fit new cylinder head bolts.
Do not wash off bolt coating.
There must be no oil or coolant in the blind holes (risk of cracking) .
Protect alternator against engine oil and coolant. (Risk of damage) .
Cover alternator with suitable auxiliary materials.
Assemble charge air hoses without grease and dry.

IMPORTANT: Only applies to E70
Only for vehicles with a production date between 27/01/2012 and 05/10/2012:
If during disassembly an injector shim (2) was removed in addition to a copper gasket (1), it is imperative that it is reinstalled.
Several cylinder heads were installed with an additional injector shim underneath the injector.

Fig 1: Identifying Injector Shim And Copper Gasket

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If the injector shim is not installed or two injector shims are installed, a malfunction of the engine may occur (e.g. irregular engine running, exhaust fumes).

IMPORTANT: If the injector spacer shim is lost, the entire cylinder head has to be replaced!

Fig 2: Identifying Injector Shaft Depth

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IMPORTANT: Several cylinder heads were installed with an additional injector shim underneath the injector.
Before installing the injector it is imperative that the depth of the injector shaft is measured using a depth gauge.
The depth of the injector shaft is 126.25 mm.
Ensure that an injector shim is installed if one is needed.
If the injector shim is not installed or two injector shims are installed, a malfunction of the engine may occur (e.g. irregular engine running, exhaust fumes).

IMPORTANT: These screws must "not" be removed.

Fig 3: Caution For Removing Screws

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Remove all rocker arms (1) and set down in order.

Remove all valve clearance compensating elements (2) and set down in order.

IMPORTANT: Worn rocker arms may only be reused on the same grooves of the camshaft.

Fig 4: Removing Compensating Elements And Rocker Arms

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Release screws (1).

Fig 5: Identifying Cylinder Head Screws

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Unfasten cylinder head bolts from outside to inside in following sequence 14... 1.

Installation note:

Fit new cylinder head bolts.

Fig 6: Cylinder Head Bolts Tightening/Loosening Sequence

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IMPORTANT: The glow elements protrude at the sealing surface and may be damaged when the cylinder head is put down.
If necessary, remove glow elements with special tool 11 6 050 .
Tightening torque: 12 23 2AZ .
Remove cylinder head.

Fig 7: Locating Cylinder Head Glow Elements

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Remove cylinder head gasket (1).

Installation note:

Observe number of holes (2) of cylinder head gasket.

Remove all traces of oil and coolant from all blind hole threaded holes (3) in crankcase.

Clean sealing surface (4).

Fig 8: Identifying Cylinder Head Gasket And Sealing Surface

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NOTE: Clean sealing surface of cylinder head and engine block.
Remove gasket remnants with hardwood scraper.
If the piston protrusion is changed (e.g. replacing piston) the CYLINDER HEAD GASKET THICKNESS must be recalculated.

NOTE: Joints between gear case cover and engine block are sealed with sealing strips stuck on as standard.
It is not necessary to apply a permanently elastic sealant.

Fig 9: Locating Gear Case Cover Sealing Strips

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Check fitting bush (1) for damage and replace if necessary.

Transitions (2) must be absolutely free of grease.

Fit new cylinder head gasket.

Fig 10: Identifying Cylinder Head Fitting Bush

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Carefully fit cylinder head.

Fit new cylinder head bolts.

Tighten down the cylinder head bolts in order 1... 14.

Tightening torque: 11 12 1AZ .

Fig 11: Cylinder Head Bolts Tightening/Loosening Sequence

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Use special tool 00 9 120 for torsion angle adjustment.

Fig 12: Identifying Special Tool (00 9 120)

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Tighten down screws (1).

Tightening torque: 11 00 4AZ .

Fig 13: Identifying Cylinder Head Screws

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Installation note:

Worn rocker arms may only be reused on the same grooves of the camshaft.

Oil camshaft bearing positions and bearing caps.

Install all rocker arms and compensating elements.

Fig 14: Identifying Camshaft

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Assemble engine.