Removing the cylinder head

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WARNING: Working on 12V electrical system.
Risk of short circuits! Risk of fire!

Make sure that there is no charger connected to the jump start terminal in the engine compartment.
Detach battery ground lead from battery.
For auxiliary batteries: Detach battery minus cables from all auxiliary batteries.

WARNING: Working on fuel system.
Risk of fire! Danger of explosion!

When working on the fuel system, make sure the workstation has sufficient ventilation, e.g., by means of extraction.
Tightly seal off open lines and connections; collect any leakage fuel directly at the point of exit.
No fire, sparks, open flames or smoking.

CAUTION: On releasing high pressure line, fuel may emerge at high speed.
Injury hazard!

Wear suitable personal protective equipment.
Before performing any installation work, allow cooling system to cool down to less than 40°C.
Note warnings on cylinder head cover.

NOTE: RISK OF DAMAGE
Damage to battery terminal, the safety battery terminal or the intelligent battery sensor (IBS).
Damaged battery terminals can lead to malfunctions or vehicle electrical system faults.

Detach battery terminal from battery pole by carefully shifting to and fro. Do not pry off using a tool.

NOTE: RISK OF DAMAGE
Engine damage due to missing motor oil.
Missing motor oil following replacement of the cylinder head or the engine can lead to damage on the valve train.

After replacing the cylinder head or the engine, do not start the engine without observing the repair notes.
It is imperative you observe the repair notes for cylinder head or engine replacement.
For additional information, see: REPAIR NOTES FOR CYLINDER HEAD OR ENGINE REPLACEMENT .

NOTE: TECHNICAL INFORMATION
After replacing the motor or cylinder head: Reprogram or encode the digital motor electronics (DME) if necessary.
Read out the vehicle l-level and proceed accordingly.
For further information, see the applicable BMW parts catalogue.

NOTE: TECHNICAL INFORMATION
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.

Preliminary work

Refer to DEACTIVATING ELECTRICAL SYSTEM .
Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
Refer to REMOVING THE CENTER UNDERBODY PROTECTION .
Refer to REMOVING REAR UNDERBODY PROTECTION .
Refer to REMOVING THE WHEEL ARCH COVER ON THE FRONT LEFT AND BOTTOM RIGHT .
Refer to DRAINING THE COOLANT FOR THE HIGH-TEMPERATURE COOLANT CIRCUIT .
Refer to DRAINING THE COOLANT FROM THE LOW-TEMPERATURE COOLING SYSTEM .
Refer to CONNECTING THE COOLANT LINE TO THE RADIATOR .
Refer to CONNECTING THE COOLANT HOSE TO THE AUXILIARY COOLANT PUMP .
Refer to MOVING THE HOOD TO THE SERVICE POSITION .
Refer to REMOVING THE ACOUSTIC COVER .
Refer to REMOVING THE SEAL FOR THE HOOD REAR .
Refer to REMOVING THE COVER OF THE ENGINE COMPARTMENT AT THE REAR LEFT .
Refer to REMOVING THE COVER OF THE REAR RIGHT ENGINE COMPARTMENT .
Refer to REMOVING LEFT AND RIGHT WIPER ARM .
Refer to REMOVING THE COWL COVER .
Refer to REMOVING THE TENSION STRUT AT THE SHOCK TOWER ON THE LEFT AND RIGHT .
Refer to REMOVING THE FIREWALL UPPER PART .
Refer to REMOVING ACOUSTIC COVER AT REAR .
Refer to REMOVING RIGHT SEALING FRAME .
Refer to REMOVING THE SECOND FIREWALL AT THE BOTTOM .
Refer to REMOVING INTAKE SILENCER HOUSING .
Refer to REMOVING RESONATOR .
Refer to REMOVING CLEAN AIR PIPE .
Refer to REMOVING CHARGE AIR LINE .
Refer to REMOVING IGNITION COILS .
Refer to REMOVING ALL SPARK PLUGS .
Refer to REMOVING THE CYLINDER HEAD COVER ACOUSTIC COVER .
Refer to REMOVING THE HIGH PRESSURE LINE BETWEEN THE HIGH PRESSURE PUMP AND THE RAIL .
Refer to REMOVING FUEL DELIVERY LINE .
Refer to REMOVING HIGH PRESSURE PUMP .
Refer to REMOVING HIGH-PRESSURE RAIL .
Refer to REMOVING THE ACOUSTIC COVER FOR THE ENGINE AT THE FRONT .
Refer to REMOVING AUXILIARY COOLANT PUMP FOR THE EXHAUST TURBOCHARGER .
Refer to REMOVING FRONT ENGINE ENCAPSULATION .
Refer to REMOVING BOTH ACTUATORS .
Refer to REMOVING THE CYLINDER HEAD COVER .
Refer to REMOVING THE DME CONTROL UNIT .
Refer to REMOVING THE INTEGRATED POWER SUPPLY MODULE (PDM) .
Refer to REMOVING CONTROL UNIT BRACKET .
Refer to REMOVING TANK VENT VALVE .
Refer to REMOVING INTAKE PLENUM .
Refer to REMOVING THE LAMBDA OXYGEN SENSOR .
Refer to REMOVING THE OXYGEN SENSOR MONITOR .
Refer to REMOVING TANK COVER ON LEFT AND RIGHT .
Refer to REMOVING THE CONNECTING SUPPORT FROM THE TUNNEL .
Refer to REMOVING EXHAUST SYSTEM .
Refer to REMOVING CATALYTIC CONVERTER .
Refer to REMOVING STARTER MOTOR .
Refer to REMOVING THE OIL RETURN LINE FOR THE EXHAUST TURBOCHARGER .
Refer to REMOVING THE COOLANT FEED LINE FOR THE EXHAUST TURBOCHARGER .
Refer to REMOVING THE COOLANT RETURNING LINE FOR THE EXHAUST TURBOCHARGER .
Refer to REMOVING THE OIL FEED LINE FOR THE EXHAUST TURBOCHARGER .
Refer to TURNING THE ENGINE ON THE VIBRATION DAMPER .
Refer to BLOCKING THE CRANKSHAFT IN THE TDC FIRING POSITION OF THE FIRST CYLINDER (AUTOMATIC TRANSMISSION) .
Refer to BLOCKING THE CAMSHAFTS .
Refer to REMOVING CHAIN TENSIONER .
Refer to RELEASING THE VANOS CENTRAL VALVE .
Refer to REMOVING VANOS CENTRAL VALVE OF THE EXHAUST SIDE .
Refer to REMOVING EXHAUST CAMSHAFT ADJUSTER .
Refer to REMOVING VANOS CENTRAL VALVE OF THE INTAKE SIDE .
Refer to REMOVING INTAKE ADJUSTER .
Refer to DISASSEMBLING THE SPECIAL TOOL 2 358 122 .

Unlock coolant line (1) and detach.

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Unlock and detach the connectors (1) and (2) .
Loosen the engine encapsulation (3) around the cylinder head.

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

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NOTE: The figure shows the rear of the engine.
Release screws (1) to (3) .

Fig 1: Acoustic Cover Screws Loosening Sequence
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Loosen screws (1) .
Remove the slide rail (2) .

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Secure the intake camshaft with an open-end wrench (1) .
Unscrew the bolt (2) and remove the camshaft sensor wheel (3) .

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Loosen screws (1) .

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Use the special tool 0 495 747 (11 8 580) for releasing the cylinder head bolts.

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Unscrew the cylinder head bolts in the sequence (10) to (1) in 360 degree steps.

Fig 2: Cylinder Head Bolts Loosening Sequence
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Remove the cylinder head (1) and the exhaust turbocharger with the workshop crane and the special tool 0 490 561 (11 0 000) .
NOTE: The figure shows the engine B38.

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