Install all roller cam followers

• Observe the classification of roller cam followers.

  The classification in digits from 1 to 5 has been printed on the roller cam follower.

  Classification	Idle speed
  1	Repair case - slow engine speed when idling
  2	Installed as standard/Initial installation
  3	Installed as standard/Initial installation
  4	Installed as standard/Initial installation
  5	Repair case - high engine speed when idling

  Courtesy of BMW OF NORTH AMERICA, INC.

• Install the roller cam follower (1) on the intake side.
• Make sure that the roller cam follower (1) is correctly positioned on the hydraulic valve clearance compensating element (arrows) and the intake valves.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Install the roller cam follower (1) on the exhaust side.
• Make sure that the roller cam follower (1) is positioned correctly on the hydraulic valve clearance compensating elements (arrows) and the exhaust valves.

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work 

• Refer to INSTALL EXHAUST CAMSHAFT .
• Refer to INSTALL INTAKE CAMSHAFT .
• Refer to BLOCKING THE CAMSHAFTS .
• Refer to INSTALLING EXHAUST CAMSHAFT ADJUSTER .
• Refer to INSTALLING THE INTAKE ADJUSTER .
• Refer to PRELOAD TIMING CHAIN .
• Refer to TIGHTENING THE VANOS CENTRAL VALVE .
• Refer to CRANKING ENGINE TWICE (AUTOMATIC TRANSMISSION) .
• Refer to DISASSEMBLING ALL SPECIAL TOOLS .
• Refer to CHECKING INSTALLATION POSITION OF ROLLER CAM FOLLOWERS .
• Refer to CHECKING THE INTERMEDIATE LEVER CLASSIFICATION .
• Refer to INSTALLING ALL INTERMEDIATE LEVERS .
• Refer to INSTALLING ALL GATES .
• Refer to CHECKING THE POSITION OF THE INTAKE CAMSHAFT .
• Refer to CHECKING THE POSITION OF THE INTAKE CAMSHAFT AT CYLINDER 3 AND 4 .
• Refer to INSTALLING TORSION SPRINGS .
• Refer to INSTALLING CYLINDER HEAD COVER .
• Refer to INSTALLING BOTH ACTUATORS .
• Refer to PREPARING THE INJECTORS FOR INSTALLATION .
• Refer to INSTALLING THE INJECTORS FOR THE CYLINDERS 4 TO 6 .
• Refer to INSTALLING THE INJECTORS FOR THE CYLINDERS 1 TO 3 .
• Refer to PREPARING FOR THE INSTALLATION OF THE HIGH PRESSURE PUMP .
• Refer to INSTALLING HIGH PRESSURE PUMP .
• Refer to INSTALLING THE HIGH-PRESSURE LINE BETWEEN THE HIGH-PRESSURE RAIL AND THE HIGH-PRESSURE PUMP .
• Refer to INSTALLING FUEL DELIVERY LINE .
• Refer to REPLACING SPARK PLUGS .
• Refer to INSTALLING THE IGNITION COILS .
• Refer to INSTALLING THE INTAKE PLENUM .
• Refer to FASTENING CHARGE AIR LINE TO THE THROTTLE BODY .
• Refer to INSTALLING THE TANK VENT VALVE .
• Refer to INSTALLING FRONT ENGINE ENCAPSULATION .
• Refer to INSTALLING CONTROL UNIT BRACKET .
• Refer to INSTALLING THE INTEGRATED POWER SUPPLY MODULE (PDM) .
• Refer to INSTALLING THE DME CONTROL UNIT .
• Refer to CONNECTING THE COOLANT LINES FOR THE LOW-TEMPERATURE COOLANT CIRCUIT .
• Refer to INSTALLING FAN COWL .
• Refer to INSTALLING THE REAR TOP CROSS CONNECTION .
• Refer to INSTALLING FRONT CROSS CONNECTION .
• Refer to INSTALLING FRONT-END STRUT ON LEFT AND RIGHT .
• Refer to INSTALLING THE COVER ON THE LEFT AND RIGHT IN THE ENGINE COMPARTMENT AT THE TOP .
• Refer to INSTALLING THE RESONATOR WITH THE TOP CLEAN AIR PIPE .
• Refer to INSTALLING INTAKE SILENCER HOUSING .
• Refer to INSTALLING CENTER BULKHEAD LOWER PART .
• Refer to INSTALLING THE SEALING FRAME ON LEFT AND RIGHT .
• Refer to INSTALLING ACOUSTIC COVER AT REAR .
• 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 LEFT AND RIGHT WIPER ARM .
• Refer to INSTALLING THE COVER OF THE ENGINE COMPARTMENT ON THE REAR LEFT .
• Refer to INSTALLING THE FRONT HOOD SEAL AT THE REAR .
• Refer to INSTALLING STARTER MOTOR .
• Refer to FILLING THE LOW-TEMPERATURE COOLING SYSTEM WITH THE VACUUM FILLING EQUIPMENT .
• Refer to CONNECTING NEGATIVE BATTERY CABLE .
• Refer to VENTING THE LOW-TEMPERATURE COOLING SYSTEM .
• Refer to INSTALLING ACOUSTIC COVER .
• Refer to INSTALLING THE THRUST FIELD .
• Refer to INSTALLING THE FRONT UNDERBODY PROTECTION OR FRONT THRUST FIELD .
• Refer to TAKING HOOD OUT OF THE SERVICE POSITION .
• Refer to CHECKING ENGINE OIL LEVEL .