Checking the timing at cylinders 1-4

Preliminary work 

• Refer to REMOVING THE ACOUSTIC COVER .
• Refer to REMOVING INTAKE SILENCER HOUSING .
• Refer to REMOVING FRONT CROSS CONNECTION (FRONT-END STRUT REMOVED) .
• Refer to REMOVING THE REAR TOP CROSS CONNECTION .
• Refer to REMOVING THE RIGHT UNFILTERED-AIR DUCT .
• Refer to REMOVING FAN COWL .
• Refer to REMOVING RIGHT CHARGE AIR COOLER .
• Refer to REMOVING ALL IGNITION COILS ON THE RIGHT .
• Refer to REMOVING INJECTORS .
• Refer to PARTIALLY UNDOING WIRING HARNESS FROM RIGHT CYLINDER HEAD COVER .
• Refer to REMOVING THE CATALYTIC CONVERTER FOR CYLINDERS 5 TO 8 .
• Refer to REMOVING THE CATALYTIC CONVERTER FOR CYLINDERS 1 TO 4 .
• Refer to INSTALLING THE HEAT SHIELD AT THE RIGHT CYLINDER HEAD COVER CYLINDERS 1 TO 4 .
• Refer to REMOVING THE ACTUATOR OF THE VARIABLE CAMSHAFT TIMING CONTROL .
• Refer to LEFT CYLINDER HEAD COVER SCREW CONNECTION, CYLINDER 1-4 .
• Refer to LOOSENING THE OIL DIPSTICK .
• Refer to LOOSENING THE TOP RIGHT TIMING CASE COVER .
• Refer to REMOVING THE CHAIN TENSIONER OF CYLINDERS 1-4 .

• Adjust special tool 0 496 778 (00 9 460)  to 0.6 Nm.
• Pretension timing chain with special tool 2 249 162. 

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• Unscrew the bolts in the sequence from (4)  to (1)  and remove the belt pulley.
  Fig 1: Belt Pulley Screws Loosening Sequence

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• Note the identification MP (= installation position).

  The identification MP (= installation position) is important for the installation of the special tool 0 496 366 (11 8 570) 

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• Position the special tool 0 496 366 (11 8 570)  on the vibration absorber and secure it with the bolt (1)  .
• Insert special tool 0 493 882 (11 9190)  into the crankcase.
• Crank the crankshaft on the central bolt using a reversible ratchet (2)  in the direction of engine rotation until it is in contact with special tool 0 493 882 (11 9 190)  . see figure. 

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• Crank the engine further on the central bolt until special tool 0 493 882 (11 9 190)  can be positioned in the timing case cover.

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• NOTE: The special tools can only be mounted if the ground surfaces point upward (see arrow).

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• Position special tool 2 249 144  on the intake camshaft of bank 5-8 in the direction of the arrow and secure with one screw (1)  each.
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Special tool, gauge to cylinder head
  M6x35	Tightening torque	10 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

• Position special tool 2 249 159  on the exhaust camshaft and screw to special tool 2 249 144. 
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Special tool to special tool, gauges
  M6x20	Tightening torque	10 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work 

• Refer to REPLACING THE CYLINDER HEAD COVER GASKET .
• Refer to REPLACING THE O-RING FOR VACUUM PUMP CYLINDERS 1 THROUGH 4 .
• Refer to FASTENING CYLINDER HEAD COVER OF CYLINDERS 1 TO 4 .
• Refer to INSTALLING HEAT SHIELD OF THE HIGH PRESSURE PUMP OF CYLINDER HEAD COVER AT LEFT FOR CYLINDERS 5 TO 8 .
• Refer to INSTALLING THE HEAT SHIELD AT THE RIGHT CYLINDER HEAD COVER CYLINDERS 1 TO 4 .
• Refer to INSTALLING RIGHT HIGH PRESSURE PUMP .
• Refer to INSTALLING INJECTORS .
• Refer to INSTALLING FUEL DELIVERY LINE .
• Refer to INSTALLING THE CATALYTIC CONVERTER FOR CYLINDERS 1 TO 4 .
• Refer to INSTALLING EXHAUST SYSTEM .
• Refer to INSTALLING RIGHT CLEAN AIR PIPE .
• Refer to INSTALLING ENGINE VENTILATION LINE .
• Refer to INSTALLING THE RIGHT UNFILTERED-AIR DUCT .
• Refer to INSTALLING FAN COWL .
• Refer to INSTALLING EXHAUST SYSTEM .
• Refer to FILLING THE LOW-TEMPERATURE COOLING SYSTEM WITH THE VACUUM FILLING EQUIPMENT .
• Refer to INSTALLING INTAKE FILTER HOUSING .
• Refer to INSTALLING ACOUSTIC COVER .