Determine cylinder head gasket

NOTE: RISK OF DAMAGE
Damage to the surface.
The use of metal-cutting tools (e.g., emery cloths) for cleaning surfaces can damage them and lead to leaks and/or engine damage.

Do not use any metal-cutting tools.

NOTE: Description is for left component only. Procedure on the right side is identical.

Remove the cylinder head gasket (1).

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Insert the special tool 2 364 711 into the bores.

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Remove coarse residues on sealing surfaces with special tool 0 495 103 (11 4 471) from cylinder head and crankcase.

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Remove fine residues on sealing surfaces with special tool 0 495 104 (11 4 472) from cylinder head and crankcase.

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Remove special tool 2 364 711 from the bores.

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Check the flatness of the cylinder head sealing surface with a conventional straightedge (1).
Maximum deviation 0.10 mm.

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Check the flatness of the cylinder head sealing surface with a conventional straightedge (1).
Maximum deviation 0.05 mm.

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NOTE: RISK OF DAMAGE
Damage to threads.
Fluids in the threaded hole can damage the thread if screws in it are tightened.

Dry threaded holes (e.g. using compressed air).

Clean all threaded holes.

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NOTE: Schematic diagram is for example purposes. Some parts may differ in certain details.

NOTE: TECHNICAL INFORMATION
The highest piston protrusion at both measuring points of all pistons is determined by the thickness of the cylinder head gasket.

Place dial gauge on the cleaned cylinder sealing surface using special tool 0 490 185 (00 2 530) .
Set dial gauge to zero under preload.

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NOTE: Description is for left component only. Procedure on the right side is identical.

Clean the pistons at the measuring points (1) and (2).
Place the dial gauge onto the cleaned piston at measuring points (1) and (2).
Determine highest point by turning crankshaft.
Measure and record the piston protrusion at measuring points (1) and (2) on all pistons.

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NOTE: Schematic diagram is for example purposes. Some parts may differ in certain details.

NOTE: TECHNICAL INFORMATION
If no work has been done on the engine block that changes the piston protrusion, use a new cylinder head gasket with the same gasket thickness.
If work has been done on the crankshaft drive or piston, the gasket thickness must be determined again.

NOTE: TECHNICAL INFORMATION
Cylinder head gasket interchange leads to engine damage . Check identification on cylinder head gasket.

Select the cylinder head gasket from the applicable BMW Parts Catalog.

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Check the fitting sleeves (1) for secure fit and damage and replace if necessary.
Place new cylinder head gasket (2) on engine block.
Parts: Cylinder head gasket

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