Installing the left cylinder head cover

• Close the openings (1) on the cylinder head.

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  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.

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• Clean the cylinder head in the area of the sealing surfaces (1).
• Open the openings (1) on the cylinder head.

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• Make sure the fitting sleeves (1) are installed. The fitting sleeves must not be damaged or deformed.

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• Replace the circular seal (1).

  Parts:  Gasket

• Replace seals (2).

  Parts:  Seals

• Replace seals (3).

  Parts:  Seals

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  Tightening the screws of the left cylinder head cover 

  Screwing sequence of the left cylinder head cover 

  Fig 1: Cylinder Head Cover Screws Tightening Sequence

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  NOTE: TECHNICAL INFORMATION 
  The sealing surfaces must be free of oil, grease and cleaning agents.
• Insert and position the cylinder head covers.
• Abut bolts (10) and (15).

  The layout of screws (10) and (15) is required for exact positioning of the camshaft position sensors  .

• Tighten screws in the order (1) to (17).
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Cylinder head cover to cylinder head
  M6x30 screw	tightening torque  10 Nm

  Fig 2: Cylinder Head Cover Screws Tightening Sequence

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• Install heat shield (2).
• Tighten down screws (1).
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Heat protection plate
  M6x12 screw Replace screw.	tightening torque  10 Nm

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• Mount the bracket for the charge air cooler.
• Tighten down screw (1).
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Charge air cooler holder on cylinder head cover
  M6x18	tightening torque  8 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work 

• Refer to INSTALLING THE VANOS SOLENOID ACTUATOR EXHAUST OF CYLINDER BANK 2 .
• Refer to INSTALLING VANOS SOLENOID ACTUATOR, INTAKE OF CYLINDER BANK 2 .
• Refer to INSTALLING THE LEFT HIGH PRESSURE PUMP .
• Refer to INSTALLING FUEL DELIVERY LINE .
• Refer to INSTALLING THE INJECTORS FOR THE CYLINDERS 5 TO 8 .
• Refer to INSTALLING THE HIGH-PRESSURE RAIL ON THE LEFT .
• Refer to FASTENING THE WIRING HARNESS SECTION TO THE LEFT CYLINDER HEAD COVER .
• Refer to INSTALLING THE IGNITION COILS OF CYLINDER 5-8 .
• Refer to INSTALLING THE IGNITION COIL OF CYLINDER 1 .
• Refer to INSTALLING THE RIGHT-HAND CHARGE AIR COOLER .
• Refer to INSTALLING THE LEFT-HAND CHARGE AIR COOLER .
• Refer to INSTALLING DRIVE BELT .
• Refer to INSTALLING THE COOLANT EXPANSION TANK FOR THE LOW-TEMPERATURE COOLANT CIRCUIT .
• Refer to INSTALLING RIGHT CLEAN AIR PIPE .
• Refer to INSTALLING LEFT CLEAN AIR PIPE .
• Refer to CONNECTING THE RIGHT CHARGE AIR LINE TO THE EXHAUST TURBOCHARGER .
• Refer to CONNECTING THE LEFT CHARGE AIR LINE TO THE EXHAUST TURBOCHARGER .
• Refer to CONNECTING THE COOLANT HOSE TO THE AUXILIARY COOLANT PUMP .
• Refer to INSTALLING FAN COWL .
• Refer to INSTALLING THE CATALYTIC CONVERTER FOR CYLINDERS 5 TO 8 .
• Refer to INSTALLING RIGHT HEAT SHIELD .
• Refer to INSTALLING LEFT HEAT SHIELD .
• Refer to TIGHTENING SCREW BETWEEN THE LEFT AND RIGHT HEAT SHIELD .
• Refer to INSTALLING HEAT SHIELD, TOP .
• Refer to INSTALLING THE RIGHT-HAND ENGINE VENTILATION LINE AND THE CRANKCASE VENTILATION INTAKE PIPE .
• Refer to INSTALLING THE LEFT ENGINE VENTILATION LINE .
• Refer to INSTALLING THE RIGHT MONITORING OXYGEN SENSOR .
• Refer to INSTALLING OXYGEN SENSOR ON THE LEFT .
• Refer to INSTALLING THE RIGHT UNFILTERED-AIR DUCT .
• Refer to INSTALLING THE LEFT UNFILTERED-AIR DUCT .
• Refer to INSTALLING THE REAR TOP CROSS CONNECTION .
• Refer to INSTALLING UPPER CROSS CONNECTION .
• Refer to INSTALLING TENSION STRUT ON LEFT AND RIGHT SHOCK TOWER .
• Refer to INSTALLING THE COVER IN THE ENGINE COMPARTMENT AT TOP LEFT , and INSTALLING THE COVER IN THE ENGINE COMPARTMENT ON THE TOP RIGHT .
• Refer to INSTALLING COVER FOR THE RIGHT DME CONTROL UNIT .
• Refer to INSTALLING THE HOLDER FOR THE DME CONTROL UNIT ON THE LEFT .
• Refer to INSTALLING THE DME CONTROL UNIT OF CYLINDERS 5 TO 8 .
• Refer to INSTALLING COVER FOR THE LEFT DME CONTROL UNIT .
• Refer to INSTALLING THE TENSION STRUT ON THE RIGHT SHOCK TOWER .
• Refer to INSTALLING INTAKE FILTER HOUSING .
• Refer to INSTALLING THE RIGHT STRUT BRACE .
• Refer to INSTALLING THE STRUT BRACE .
• Refer to INSTALLING THE RIGHT LAMBDA OXYGEN SENSOR .
• Refer to INSTALLING THE LEFT LAMBDA OXYGEN SENSOR .
• Refer to INSTALL ACOUSTIC COVER .
• Refer to INSTALLING FRONT UNDERBODY PROTECTION .
• Refer to INSTALLING EXHAUST SYSTEM .
• Refer to INSTALLING THE STIFFENING PLATE .
• Refer to INSTALLING THE LEFT AND RIGHT REAR DIFFUSER .
• Refer to INSTALLING THE REAR LEFT AND RIGHT TENSION STRUT .
• Refer to INSTALLING THE LEFT AND RIGHT UNDERSHIELD (TANK COVER) .
• Refer to CONNECTING ALL BATTERY GROUND LEADS .
• Refer to FILLING AND VENTING THE LOW-TEMPERATURE COOLANT CIRCUIT .