Installing the intake camshaft for cylinders 1 through 6

Intake camshaft, right 

Fig 1: Intake Camshaft Screws Tightening Sequence

Courtesy of BMW OF NORTH AMERICA, INC.

1-14 Screws (graphic N74) 

• Check the plain rectangular compression ring (1)  on the intake camshaft for damage and replace if necessary.

  The snap-in lugs (arrows) of the plain rectangular compression ring must be locked in place.

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• Make sure the roller cam follower (1)  has been fitted correctly.
• Coat all the bearing positions of the intake camshaft on the cylinder head with engine oil.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Observe the camshaft identification.

  All camshafts are identified and must never be mixed up.

  E = intake side, 16 = cylinders 1 through 6

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• Coat all bearing positions with motor oil.
• Insert the intake camshaft without tension so that the identification is legible.
• Observe the correct installation orientation of the roller cam follower (arrows).

  The cams on cylinder 1 point upwards.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Ensure that thrust bearing (1)  of the intake camshaft is positioned correctly in the cylinder head.

  The intake camshaft bearing cap of the thrust bearing (1)  can only be mounted in one position.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Position the lid (1)  of the thrust bearing on the thrust bearing and hand-tighten the screws.
• Position the high pressure pump bracket (2)  and hand-tighten the screws.

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• Coat all bearing positions with motor oil.
• Observe the identification of the camshaft bearing caps.

  All camshaft bearing cups are marked and must never be mixed up.

  L = Cylinders 7 to 12, A = Exhaust side, 4 = Bearing position 4

  R = Cylinders 1 to 6, E = Intake side

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• Position all intake camshaft bearing caps (1)  at their original installation location and hand-tighten the screws.

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• Insert special tool 0 496 381 (11 9 893)  .

  Special tool 0 496 381 (11 9 893)  must rest on the cylinder head without any gap after the exhaust camshaft is positioned.

• If necessary, slightly rotate the intake camshaft.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Tighten (apply) the bolts to the snug torque in the sequence (14)  to (1)  in increments of 180°.
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Camshaft bearing cap to cylinder head
  M7x45	Joining torque	15 Nm
  M7x45	Tightening torque	15 Nm

  Fig 2: Intake Camshaft Screws Tightening Sequence

  Courtesy of BMW OF NORTH AMERICA, INC.
• Ensure that all the intake camshaft bearing caps rest on the cylinder head without any gaps.
• Tighten the screws in the sequence (14)  to (1)  .
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Camshaft bearing cap to cylinder head
  M7x45	Joining torque	15 Nm
  M7x45	Tightening torque	15 Nm

• Note the installation position (arrows) of the roller tappet during installation.
• Installing roller tappet of high pressure pump.

  Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work 

• 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 INSTALLING INTAKE ADJUSTER OF CYLINDERS 1 TO 6 .
• Refer to REPLACING THE CENTRAL BOLT .
• Refer to SECURING BOTH CENTRAL BOLTS OF THE VANOS GEAR .
• Refer to INSTALLING THE UPPER SLIDE RAIL .
• Refer to INSTALLING SPECIAL TOOL TO PRE-TENSIONING TIMING CHAIN .
• Refer to SECURING THE CENTRAL BOLT OF THE VARIABLE CAMSHAFT TIMING CONTROL INTAKE (CYLINDERS 1 TO 6) .
• Refer to SECURING THE CENTRAL SCREW OF THE VARIABLE EXHAUST CAMSHAFT TIMING CONTROL (CYLINDERS 1 TO 6) .
• Refer to REMOVING THE SPECIAL TOOLS TO FIX THE CAMSHAFTS .
• Refer to CHECKING TIMING .
• Refer to REMOVING THE SPECIAL TOOLS TO DISCONNECTING THE CRANKSHAFT .
• Refer to INSTALLING THE BELT PULLEY .
• Refer to INSTALLING THE DRIVE BELT FOR ALTERNATOR .
• Refer to INSTALLING THE DRIVE BELT FOR ALTERNATOR 2 AND THE AIR CONDITIONING COMPRESSOR .
• Refer to REMOVING THE PROTECTIVE PLATE AT THE RADIATOR .
• Refer to REMOVING SPECIAL TOOL TO PRETENSION TIMING CHAIN .
• Refer to INSTALLING THE HYDRAULIC CHAIN TENSIONER .
• Refer to INSTALLING THE TIMING CASE COVER AT THE TOP FOR CYLINDERS 1 TO 6 .
• Refer to INSTALLING BOTH SOLENOID VALVES ON THE RIGHT .
• Refer to INSTALLING THE COOLANT EXPANSION TANK FOR THE LOW-TEMPERATURE COOLANT CIRCUIT .
• Refer to INSTALLING THE CYLINDER HEAD COVER ON THE RIGHT .
• Refer to FASTENING THE COOLANT FEED LINE FOR THE RIGHT EXHAUST TURBOCHARGER .
• Refer to INSTALLING THE CENTER TOP CROSS CONNECTION .
• Refer to CONNECTING THE COOLANT HOSE TO THE RADIATOR .
• Refer to INSTALLING THE STIFFENING PLATE .
• Refer to INSTALLING THE UNDERBODY PROTECTION OF THE STEERING GEAR OR THE FRONT THRUST FIELD .
• Refer to INSTALLING THE FRONT UNDERBODY PROTECTION OR FRONT THRUST FIELD .
• Refer to PREPARING THE INJECTOR FOR INSTALLATION .
• Refer to INSTALLING INJECTORS .
• Refer to INSTALLING RIGHT HIGH PRESSURE PUMP .
• Refer to INSTALLING THE RIGHT HIGH-PRESSURE RAIL .
• Refer to INSTALLING ALL HIGH PRESSURE LINES BETWEEN THE RAIL AND THE INJECTORS .
• Refer to INSTALLING FUEL DELIVERY LINE .
• Refer to INSTALLING THE HIGH-PRESSURE LINE ON THE RIGHT BETWEEN THE HIGH-PRESSURE PUMP AND THE HIGH-PRESSURE RAIL .
• Refer to INSTALLING THE RIGHT-HAND CHARGE AIR PIPE .
• Refer to INSTALLING TOP RIGHT CLEAN AIR PIPE .
• Refer to PARTIALLY FASTENING THE WIRING HARNESS ON THE RIGHT CYLINDER HEAD COVER .
• Refer to CONNECTING ALL THE CONNECTORS TO THE DME CONTROL UNIT FOR CYLINDERS 1 TO 6 AND TO THE INTEGRATED POWER SUPPLY MODULE (PDM) .
• Refer to INSTALLING COVER FOR THE RIGHT DME CONTROL UNIT .
• Refer to INSTALLING THE IGNITION COILS .
• Refer to INSTALLING THE RIGHT-HAND VENTILATION LINE .
• Refer to INSTALLING THE INTAKE PLENUM .
• Refer to INSTALLING THE TANK VENT LINE .
• Refer to INSTALLING THE ENGINE VENTILATION LINE ON THE INTAKE SYSTEM .
• Refer to MOUNTING THE LEFT-HAND CHARGE AIR COOLER .
• Refer to INSTALLING THE LEFT THROTTLE BODY .
• Refer to MOUNTING THE RIGHT-HAND CHARGE AIR COOLER .
• Refer to INSTALLING THE RIGHT THROTTLE BODY .
• Refer to INSTALLING THE CENTER COWL UPPER PART .
• Refer to INSTALLING TENSION STRUT ON SHOCK TOWER .
• Refer to INSTALLING WINDSHIELD PANEL COVER .
• Refer to INSTALLING THE FRONT HOOD SEAL AT THE REAR .
• Refer to INSTALLING THE REAR RIGHT ENGINE COMPARTMENT COVER .
• Refer to INSTALLING THE COVER OF THE ENGINE COMPARTMENT ON THE REAR LEFT .
• Refer to INSTALLING LEFT AND RIGHT WIPER ARM .
• Refer to INSTALLING FAN COWL .
• Refer to INSTALLING THE REAR TOP CROSS CONNECTION .
• Refer to INSTALLING LEFT INTAKE PORT .
• Refer to INSTALLING THE LEFT-HAND AIR DUCT .
• Refer to INSTALLING LEFT INTAKE SILENCER HOUSING .
• Refer to INSTALLING RIGHT AIR DUCT .
• Refer to INSTALLING RIGHT INTAKE SILENCER HOUSING .
• Refer to INSTALLING FANFARE HORN, RIGHT .
• Refer to INSTALLING THE FANFARE ON THE LEFT SIDE .
• Refer to INSTALLING THE CENTER TOP CROSS CONNECTION .
• Refer to INSTALLING BOTH HEADLIGHTS .
• Refer to INSTALLING BUMPER COVER, FRONT .
• Refer to INSTALLING FRONT SECTION OF THE FRONT WHEEL ARCH COVER (PARTIALLY REMOVED) .
• Refer to INSTALLING FRONT ORNAMENTAL GRILLE .
• Refer to INSTALLING THE COVER OF THE ENGINE COMPARTMENT CENTER .
• Refer to INSTALLING ACOUSTIC COVER .
• Refer to CONNECTING ALL BATTERY GROUND LEADS .
• Refer to CHECKING THE COOLANT LEVEL IN THE LOW-TEMPERATURE COOLANT CIRCUIT AND TOPPING UP, IF NEEDED .
• Refer to FILLING THE COOLING SYSTEM WITH THE VACUUM FILLING UNIT .
• Refer to VENTING THE HIGH-TEMPERATURE COOLANT SYSTEM .
• Refer to ADJUSTING HEADLIGHTS .