Remove left cylinder head

Preliminary work 

• Refer to BRINGING FRONT COMPARTMENT LID IN THE SERVICE POSITION .
• Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
• Refer to REMOVING THE ACOUSTIC COVER .
• Refer to REMOVING THE COVER FOR THE CENTER ENGINE COMPARTMENT .
• Refer to REMOVING FRONT ORNAMENTAL GRILLE .
• Refer to PARTIALLY REMOVING THE FRONT SECTION OF THE FRONT WHEEL ARCH COVER .
• Refer to REMOVING FRONT BUMPER COVER .
• Refer to REMOVING BOTH HEADLIGHTS .
• Refer to REMOVING THE CENTER TOP CROSS CONNECTION .
• Refer to REMOVING THE FANFARE HORN ON THE LEFT .
• Refer to REMOVING THE FANFARE HORN TOWARDS THE RIGHT .
• Refer to REMOVING LEFT AND RIGHT WIPER ARM .
• 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 THE SEAL FOR THE HOOD REAR .
• Refer to REMOVING THE COWL COVER .
• Refer to REMOVING THE COWL UPPER PART IN THE CENTER .
• Refer to REMOVING TRAILING LINK AT SPRING BOLT .
• Refer to REMOVING LEFT INTAKE SILENCER HOUSING .
• Refer to REMOVING THE LEFT-HAND AIR DUCT .
• Refer to REMOVING LEFT INTAKE PORT .
• Refer to PARTIALLY LOOSENING THE LEFT-HAND CHARGE AIR COOLER .
• Refer to REMOVING LEFT THROTTLE VALVE ASSEMBLY .
• Refer to REMOVING RIGHT INTAKE SILENCER HOUSING .
• Refer to REMOVING RIGHT AIR DUCT .
• Refer to REMOVING THE RIGHT THROTTLE BODY .
• Refer to PARTIALLY LOOSENING THE RIGHT-HAND CHARGE AIR COOLER .
• Refer to REMOVING THE REAR TOP CROSS CONNECTION .
• Refer to REMOVING FAN COWL .
• Refer to REMOVING THE ENGINE VENTILATION LINE FROM THE INTAKE SYSTEM .
• Refer to REMOVING THE TANK VENT LINE .
• Refer to REMOVING THE INTAKE PLENUM .
• Refer to REMOVING THE LEFT-HAND VENTILATION LINE .
• Refer to REMOVING IGNITION COILS .
• Refer to REMOVING COVER FOR THE DME CONTROL UNIT ON LEFT .
• Refer to REMOVING THE DME CONTROL UNIT FOR CYLINDERS 7 TO 12 .
• Refer to REMOVING THE HOLDER FOR THE DME CONTROL UNIT ON THE LEFT .
• Refer to PARTIALLY RELEASING THE WIRING HARNESS FROM THE CYLINDER HEAD COVER ON THE LEFT .
• Refer to REMOVING TOPPING CLEAN AIR PIPE AT LEFT .
• Refer to REMOVING CHARGE AIR PIPE ON LEFT .
• Refer to REMOVING LEFT HIGH PRESSURE LINE BETWEEN HIGH PRESSURE PUMP AND RAIL .
• Refer to REMOVING FUEL DELIVERY LINE .
• Refer to REMOVING ALL HIGH PRESSURE LINES BETWEEN RAIL AND INJECTORS .
• Refer to REMOVING THE HIGH-PRESSURE RAIL ON THE LEFT .
• Refer to REMOVING LEFT HIGH PRESSURE PUMP .
• Refer to REMOVING INJECTORS .
• Refer to REMOVING FRONT RIGHT WHEEL .
• Refer to REMOVING THE FRONT UNDERBODY PROTECTION OR FRONT THRUST FIELD .
• Refer to REMOVING THE UNDERBODY PROTECTION OF THE STEERING GEAR AND THRUST FIELD RESPECTIVELY .
• Refer to REMOVING THE STIFFENING PLATE .
• Refer to RELEASING THE OIL DRAIN PLUG .
• Refer to TIGHTENING THE OIL DRAIN PLUG .
• Refer to REMOVING THE COVER FOR THE STEERING ASSEMBLY ON THE RIGHT .
• Refer to LOOSENING THE ANTI-ROLL BAR LINK ON THE LEFT AND RIGHT FROM THE ANTI-ROLL BAR .
• Refer to REMOVING THE ACTIVE STABILIZER IN FRONT .
• Refer to REMOVING THE LEFT LAMBDA OXYGEN SENSOR .
• Refer to REMOVING THE UNIVERSAL JOINT AT THE LOWER STEERING SHAFT .
• Refer to REMOVING THE REAR DIFFUSER .
• Refer to REMOVING THE TRIM FROM THE REAR BUMPER PANEL .
• Refer to REMOVING BOTH EXHAUST TAILPIPE TRIMS .
• Refer to REMOVING THE CONNECTING SUPPORT FROM THE TUNNEL .
• Refer to REMOVING EXHAUST SYSTEM .
• Refer to REMOVING REAR UNDERBODY PROTECTION .
• Refer to REMOVING THE RETAINING PLATES .
• Refer to DISCONNECTING THE TRANSMISSION OIL LINES .
• Refer to REMOVING THE HEAT SHIELDS .
• Refer to REMOVING TRANSMISSION CROSS-MEMBER .
• Refer to PARTIALLY LOOSENING THE PROP SHAFT .
• Refer to REMOVING THE PROP SHAFT FRONT AT THE FRONT AXLE TRANSMISSION .
• Refer to REMOVING THE TRANSFER BOX (ATC 13-1) .
• Refer to REMOVING THE CATALYTIC CONVERTER FOR CYLINDERS 7 TO 12 .
• Refer to INSTALLING THE TRANSFER BOX (ATC 13-1) .
• Refer to INSTALLING TRANSMISSION CROSS MEMBER .
• Refer to DRAINING COOLANT .
• Refer to DRAINING THE COOLANT FOR THE LOW-TEMPERATURE COOLANT CIRCUIT .
• Refer to RELEASING THE COOLANT LINE FOR THE TURBOCHARGER ON THE LEFT .
• Refer to REMOVING LEFT CYLINDER HEAD COVER .
• Refer to REMOVING BOTH SOLENOID VALVES ON LEFT SIDE .
• Refer to REMOVING THE TOP TIMING CASE COVER OF CYLINDERS 7 TO 12 .
• Refer to INSTALLING THE PROTECTIVE SHIELD ON THE RADIATOR .
• Refer to REMOVING THE DRIVE BELT FOR ALTERNATOR 2 AND THE AIR CONDITIONING COMPRESSOR .
• Refer to REMOVING THE DRIVE BELT FOR ALTERNATOR .
• Refer to REMOVING THE BELT PULLEY .
• Refer to PARTIALLY DETACHING THE AIR CONDITIONING COMPRESSOR .
• Refer to REMOVING THE COOLANT HOSE ON THE LEFT FROM THE RADIATOR .
• Refer to REMOVING THE HEATER RETURNING HOSE FROM THE COOLANT PUMP .
• Refer to REMOVING ALTERNATOR 2 .
• Refer to REMOVING LEFT CLEAN AIR PIPE .
• Refer to PLACE THE 1ST AND 7TH CYLINDER INTO THE TDC SETTING .
• Refer to REMOVING THE SPECIAL TOOLS TO DISCONNECTING THE CRANKSHAFT .
• Refer to RELEASING THE CHAIN TENSIONER .
• Refer to REMOVING THE HYDRAULIC CHAIN TENSIONER .
• Refer to INSTALLING SPECIAL TOOL TO PRE-TENSIONING TIMING CHAIN .
• Refer to CHECKING TIMING .
• Refer to INSTALLING SPECIAL TOOL FOR FASTENING CAMSHAFTS .
• Refer to SCREW IN SPECIAL TOOLS 11 9 895 1 TO 6 AND 7 TO 12 .
• Refer to FASTENING THE CAMSHAFTS WITH THE SPECIAL TOOL .
• Refer to REMOVING THE UPPER SLIDE RAIL .
• Refer to LOOSENING BOTH CENTRAL BOLTS OF VANOS GEAR .
• Refer to REMOVING SPECIAL TOOL TO PRETENSION TIMING CHAIN .
• Refer to REMOVING INTAKE ADJUSTER AT CYLINDER 7 TO 12 .
• Refer to REMOVING THE EXHAUST CAMSHAFT ADJUSTER FOR CYLINDERS 7 TO 12 .

Screw connection of the cylinder head 

Fig 1: Left Cylinder Head Screws Loosening Sequence

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• Release the wiring harness (1) from the clamps (arrows) and place aside.
• Release the cable from the bracket at rear on the cylinder head.

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  NOTE: Description is for right component only. The procedure on the left side is identical.
• Release the positive battery cable (1) from the holders (2) and place it to one side.

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• Release the bearing screw (1) of the guide rail.

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• Release spring strap clamps (1).
• Pull off the coolant hoses.

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• Loosen screws (1).
• Loosen screws (2).
• Feed out and remove the heat shield.

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• Release the screw connection of the heat shield (1) on the engine support bracket.
• Feed out and remove the heat shield (1).

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• Unlock the connector (1) of the wastegate valve controller and remove.

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• Unlock connector (1) of the blow-off valve and remove.

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• Release the screw of the oil return line on the turbocharger from the bottom with a long extension.
• Release the oil return line (1) from the turbocharger.

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• Unscrew the screw (1) and remove the coolant feed line.

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• Release the spring strap clamp (2).
• Detach the coolant return line.

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• Unscrew the screw (1) from the ground cable.

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• Install the special tool 0 493 997 (11 8 350)  with the screws (M6x25) on the rear cylinder head.
• Tighten the screws.
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Standard screw connection M6
  M6	Tightening torque	8 Nm

• Install the special tool 0 493 987 (11 8 260)  with the screws (M6x25) on the front cylinder head.
• Tighten the screws.

  Courtesy of BMW OF NORTH AMERICA, INC.

  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Standard screw connection M6
  M6	Tightening torque	8 Nm

• Unscrew the bolts (1) on the cylinder head.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Release the cylinder head bolts in the order (14) to (1).
• Remove cylinder head bolts (14) to (1) with washers.
  Fig 2: Left Cylinder Head Bolts Loosening Sequence

  Courtesy of BMW OF NORTH AMERICA, INC.
• Attach special tool 0 490 567 (11 0 020) to workshop crane.
• Fasten the special tool 0 490 567 (11 0 020) on the special tools 0 493 997 (11 8 350) and 0 493 987 (11 8 260). 

  Courtesy of BMW OF NORTH AMERICA, INC.

  NOTE: RISK OF DAMAGE 
  Heavy component. 
  Heavy components can lead to injury or damage. 

  • Remove and install heavy components with the aid of another person/other persons.
• The cylinder head must be guided during the removal procedure.

  Courtesy of BMW OF NORTH AMERICA, INC.

  Two support persons are required for removing the cylinder head.

• Keep the timing chain (1) tensioned.
  NOTE: RISK OF DAMAGE 
  Damage to guide rails. 
  The application of great force can damage the guide rails of the timing chain. 

  • When removing and installing the cylinder head, make sure that the cylinder head does not damage the guide rail.
• Ensure that the guide rails of the timing chain are not damaged.
  NOTE: TECHNICAL INFORMATION 
  Handle the timing chain carefully  to protect the timing chain and timing chain drive from damage.
• Carefully lift the cylinder head (2) with the special tool 0 490 567 (11 0 020) and a workshop crane.
• Tilt the cylinder head (2) in the direction of the arrow.
• Feed out the timing chain and the chain guide.
• Remove the cylinder head (2) with the workshop crane toward the top front.