11 12 100 Removing and installing/sealing cylinder head (N14)

WARNING: This page is about a different car, the 2008 MINI Cooper and 2007 MINI Cooper. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

11 2 250
11 4 471
11 4 472
11 9 590
11 9 630

IMPORTANT: Fit new cylinder head screws.

Do not wash off bolt coating.

There must not be any coolant, water or oil present in the pocket holes (risk of corrosion and cracking) .

Necessary preliminary tasks:

Remove Exhaust System .
Drain Coolant .
Drain Engine Oil .
Remove intake air Manifold .
Remove Oil Dipstick .
Detach coolant hoses from cylinder head.
Remove oil dipstick Guide Tube .
Remove Cylinder Head Cover .
Remove solenoid valve from adjustment unit.
Remove Inlet Adjustment Unit .

Secure crankshaft with special tool 11 9 590 .

Fig 1: Special Tool (11 9 590)

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NOTE: Remove and install cylinder head in installed state.

Suspend engine with engine crane (1) from lifting eye (2).

Fig 2: Engine Crane And Lifting Eye

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NOTE: Remove and install cylinder head in installed state.

Move front panel into Assembly Position .

Release upper Alternator Screws , do not remove alternator.

Remove right engine mount .

Secure special tool 11 9 630 with standard bolts (1 and 2).

Fig 3: Bolts, Special Tool (11 9 630) And Removal Direction

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Release screws (1).

IMPORTANT: If the timing chain is stowed in the gearcase, the crankshaft must no longer be rotated.

The timing chain may jam on the crankshaft gear.

Installation:

Only during assembly is the timing chain lifted out with a hook.

Fig 4: Timing Chain Mounting Screws

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Release screw (1).

Fig 5: Retaining Screw

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Release cylinder head bolts with special tool 11 2 250 .

Release cylinder head bolts from outside inwards (10 to 1).

NOTE: Remove shims with a magnet.

Illustration shows camshafts removed.

Fig 6: Cylinder Head Bolts And Removal/Installation Sequence

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Use special tool 11 4 471 to remove coarse gasket remnants from sealing faces of cylinder head and crankcase.

IMPORTANT: Do not use any metal-cutting tools.

Fig 7: Special Tool (11 4 471)

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Remove fine gasket remnants with special tool 11 4 472 .

IMPORTANT: Do not use any metal-cutting tools.

There must not be any coolant, water or oil present in the pocket holes (risk of corrosion and cracking) .

Clean all pocket holes.

Replace Cylinder Head Gasket .

Fig 8: Special Tool (11 4 472)

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Fit new cylinder head screws.

Do not wash off bolt coating.

Attach shims to cylinder head bolts.

Shims can drop into the engine (risk of damage!) .

Secure cylinder head bolts from inside outwards (1 to 10).

For tightening torque refer to 11 12 2AZ in 11 12 CYLINDER HEAD WITH COVER .

Fig 9: Cylinder Head Bolts And Removal/Installation Sequence

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Secure bolts (1).

For tightening torque refer to 11 12 1AZ in 11 12 CYLINDER HEAD WITH COVER .

Fig 10: Timing Chain Mounting Screws

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Tighten the screw (1).

For tightening torque refer to 11 12 3AZ in 11 12 CYLINDER HEAD WITH COVER .

Fig 11: Mounting Screw

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Assemble engine.