11 12 100 Removing and installing cylinder head (B48B)

WARNING: This page is about a different car, the 2018 BMW 330i and 2017 BMW 330i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

11 8 580
11 0 000
11 9 000
11 4 471
11 4 472
2 364 711
11 4 470
00 9 120

Attention!

When replacing the cylinder head:

In all vehicles, the digital engine electronics (DME) must, if necessary, be reprogrammed/re-encoded after replacing the cylinder head.

Read the vehicle I-level and proceed accordingly.

PuMA measure 62634754 must be observed.

For further information, see the appropriate BMW parts catalogue

Attention!

Replacing the cylinder head may cause damage on the valve gear due to a lack of engine oil.

It is imperative to observe REPAIR NOTES FOR THE REPLACEMENT OF THE CYLINDER HEAD .

Attention!

There must be no coolant, water or engine oil in any of the threaded holes in the engine block.

Fit new cylinder head bolts.

Do not wash off bolt coating.

Jointing torque and angle of rotation must be observed without fail (risk of damage! ).

NOTE: When replacing cylinder head:
The complete valve control and the Valvetronic servomotor are already preassembled.

Necessary preliminary work:

Remove CHARGE AIR LINE
Remove INTAKE PLENUM
Remove CATALYTIC CONVERTER
Drain off ENGINE OIL
Remove OIL RETURN LINE
Remove OIL FEED LINE
Remove COOLANT RETURN LINE
Remove COOLANT FEED LINE
Remove INTAKE ADJUSTER AND EXHAUST CAMSHAFT ADJUSTER

Removal:

Unlock coolant line (1) and pull off.

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Unlock and pull off connectors (1 and 2).

Loosen the engine encapsulation (3) in the area of the cylinder head.

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Unclip cable (1) in marked area from acoustic cover (2).

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NOTE: Illustration shows rear side of engine.

Release screws (1 - 3).

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Release screws (1).

Remove guide rail (2).

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Fix intake camshaft with an open-end spanner (1).

Release screw (2).

Remove the camshaft sensor wheel (3).

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Disassemble the roller tappet (1) from the high pressure pump bracket (3).

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Release screws (1).

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Use special tool 11 8 580 to slacken the cylinder head bolts.

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Release cylinder head bolts in sequence 10 to 1.

Fig 1: Cylinder Head Bolts Loosening Sequence

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Remove cylinder head (1) and exhaust turbocharger using engine lifter and special tool 11 0 000.

NOTE: Illustration shows B38 engine.

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NOTE: Before the cylinder head is mounted on special tool 11 9 000, the guide rail (2) must be disassembled.

Release bearing journal (1).

Remove guide rail (2) upwards.

NOTE: Illustration shows B38 engine.

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Installation:

NOTE: The oil ducts must be sealed before cleaning the sealing surfaces using special tools 11 4 471 and 11 4 472.

Attention!

Do not use any metal-cutting tools (e.g. emery cloth).

Close oil duct at front using special tool (B) from tool set 2 364 711.

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Remove coarse residues on sealing surfaces with special tool 11 4 471 from cylinder head and crankcase.

Attention!

Do not use any metal-cutting tools.

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Remove fine residues on sealing surfaces with special tool 11 4 472 from cylinder head and crankcase.

Attention!

Do not use any metal-cutting tools.

There must be no coolant, water or engine oil in the pocket holes.

Risk of cracking and corrosion!

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Clean all blind holes.

Replace CYLINDER HEAD GASKET .

Check fitting sleeves (1) for damage and correct installation position.

Clean sealing surfaces on the cylinder head and crankcase using special tool 11 4 470.

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Attention!

There must be no coolant, water and engine oil in any of the threaded holes in the engine block.

Fit new cylinder head bolts.

Do not wash off bolt coating.

Lightly oil screw head support.

Jointing torque and angle of rotation must be observed without fail (risk of damage! ).

Install guide rail (2) from the top.

Tighten bearing journal (1).

NOTE: Illustration shows B38 engine.

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Install cylinder head (1) and exhaust turbocharger using engine lifter and special tool 11 0 000.

NOTE: Illustration shows B38 engine.

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Fit cylinder head and secure with new bolts, tightening in the sequence 1 to 10.

Tightening torque: 11 12 1AZ.

Fig 2: Cylinder Head Bolts Tightening Sequence

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Secure cylinder head bolts (1) with special tool 00 9 120 and 11 8 580.

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Install and tighten down screws (1).

Tightening torque: 11 12 2AZ.

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Mount the roller tappet (1) on the high pressure pump bracket (3).

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Fix intake camshaft with an open-end spanner (1).

Position the camshaft sensor wheel (3).

Tighten down screw (2).

Tightening torque 11 31 7AZ .

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NOTE: Tool for tightening screw connections of grounding cable and acoustic cover on rear side of engine.

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Position acoustic cover.

Tighten screw (3).

Tightening torque 11 00 2AZ .

Tighten screw (2).

Tightening torque 11 00 2AZ .

Tighten screw (1).

Tightening torque 11 00 2AZ .

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Clip cable (1) into acoustic cover (2).

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Install guide rail (2).

Tighten the screws.

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Position engine encapsulation (3) correctly.

Connect connectors (1 and 2).

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Lock coolant line (1) and plug onto cylinder head.

NOTE: Lock must snap audibly into place.

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Required reworking:

INSTALL INTAKE ADJUSTER AND EXHAUST CAMSHAFT ADJUSTER
Install INTAKE PLENUM
Install COOLANT FEED LINE
Install COOLANT RETURN LINE
Install OIL FEED LINE
Install OIL RETURN LINE
Install CATALYTIC CONVERTER
Install CHARGE AIR LINE
Top up ENGINE OIL

When replacing the cylinder head, the I-level must be encoded and programmed if necessary.

Connect diagnosis system and follow diagnosis instructions
Service functions
Power train
Engine electronics
Reset VANOS adaptation values
Encode and program I-level if necessary