Installing both exhaust manifolds

• Replace stud bolts (arrows).

  Parts:  Stud bolts

• Tighten stud bolts (arrows).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Stud bolt on cylinder head
  M8x50	Replace the stud bolt. tightening torque	20 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

  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.

  Courtesy of BMW OF NORTH AMERICA, INC.

  NOTE: To provide a better overview: Illustration of surrounding parts removed.
• Clean the sealing surfaces (1)  on the cylinder head using special tool 0 495 102 (11 4 470) .
• Replace the seal (1)  .

  Parts:  Seal

  Courtesy of BMW OF NORTH AMERICA, INC.

• The installation position of the seal (1)  must be adhered to.

  The seal (1)  must be installed with the side of the bead (2)  (recess of the seal) facing the exhaust manifold (3)  .

  Courtesy of BMW OF NORTH AMERICA, INC.

• Insert and install the exhaust manifold (2)  .
• Position the sliding rail (1)  .

  Courtesy of BMW OF NORTH AMERICA, INC.

  NOTE: TECHNICAL INFORMATION 
  When assembling, it is essential to observe screwing sequences and tightening torques.
  Failure to comply with the regulations can lead to leaks and damage.
  Fig 1: Left Exhaust Manifold Nuts Tightening Sequence

  Courtesy of BMW OF NORTH AMERICA, INC.
• Replace nuts (1)  to (8)  .

  Parts:  Nuts

• Tighten the nuts in the sequence (1)  to (8)  .
  TIGHTENING TORQUES SPECIFICATION
  
  

  Exhaust manifold to cylinder head
  M8 Replace nuts.	tightening torque	15 Nm

Follow-up work 

• Refer to INSTALLING FRONT HEAT SHIELD .
• Refer to INSTALLING ALTERNATOR .
• Refer to ATTACHING THE CHARGE AIR COOLER .
• Refer to INSTALLING BOTH EXHAUST TURBOCHARGERS .
• Refer to INSTALLING THE CLEAN AIR PIPE OF CYLINDER BANK 2 .
• Refer to INSTALLING THE LEFT CHARGE AIR LINE .
• Refer to INSTALLING CLEAN AIR PIPE OF CYLINDER BANK 1 .
• Refer to INSTALLING THE RIGHT CHARGE AIR LINE .
• Refer to CLOSING THE HIGH-TEMPERATURE COOLANT CIRCUIT .
• Refer to INSTALLING THE UNDERBODY PROTECTION OF THE STEERING GEAR OR THE FRONT THRUST FIELD .
• Refer to INSTALLING FRONT UNDERBODY PROTECTION .
• Refer to INSTALLING THE BOTTOM FRONT RIGHT SIDE COVER .
• Refer to INSTALLING DRIVE BELT .
• Refer to PARTIALLY FASTENING THE COOLANT EXPANSION TANK FOR THE LOW-TEMPERATURE COOLANT CIRCUIT .
• Refer to INSTALLING FAN COWL .
• Refer to INSTALLING THE REAR TOP CROSS CONNECTION .
• Refer to INSTALLING UPPER CROSS CONNECTION .
• Refer to INSTALLING BOTH FRONT-END STRUTS .
• Refer to INSTALLING THE CENTER ENGINE COMPARTMENT COVER .
• Refer to INSTALLING THE CATALYTIC CONVERTER FOR CYLINDERS 5 TO 8 .
• Refer to RELEASING THE HEAT SHIELD .
• Refer to INSTALLING THE CENTER COWL UPPER PART .
• Refer to INSTALLING TENSION STRUT ON SHOCK TOWER .
• Refer to ATTACHING WINDSHIELD PANEL COVER .
• Refer to INSTALLING LEFT AND RIGHT WIPER ARM .
• 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 RIGHT HEAT SHIELD .
• Refer to INSTALLING LEFT HEAT SHIELD .
• Refer to INSTALLING HEAT SHIELD, TOP .
• Refer to INSTALLING THE RIGHT OXYGEN SENSOR MONITOR .
• Refer to INSTALLING THE LEFT OXYGEN SENSOR MONITOR .
• Refer to PARTIALLY INSTALLING THE RIGHT LAMBDA OXYGEN SENSOR .
• Refer to PARTIALLY INSTALLING THE LEFT LAMBDA OXYGEN SENSOR .
• Refer to INSTALLING THE RETAINING BRIDGE IN VEHICLES WITH A GASOLINE PARTICULATE FILTER .
• Refer to INSTALLING THE RETAINING BRIDGE .
• Refer to INSTALLING EXHAUST SYSTEM .
• Refer to INSTALLING CENTER STIFFENING PLATE .
• Refer to INSTALLING TANK COVER ON LEFT AND RIGHT .
• Refer to INSTALLING REAR PANEL .
• Refer to PARTIALLY INSTALLING THE REAR LEFT AND RIGHT WHEEL ARCH COVERS .
• Refer to INSTALLING BOTH EXHAUST COVERS .
• Refer to INSTALLING BOTH SIDE REAR TRIM STRIPS .
• Refer to INSTALLING THE REAR BUMPER TRIM .
• Refer to INSTALLING THE REAR DIFFUSER .
• Refer to INSTALLING THE TAIL LIGHT ON THE LEFT AND RIGHT SIDE PANELS .
• Refer to INSTALLING COVER FOR WATER CHANNEL ON LEFT AND RIGHT .
• Refer to INSTALLING THE LUGGAGE COMPARTMENT WHEEL ARCH TRIM PANEL ON THE LEFT AND RIGHT (PARTIALLY REMOVED) .
• Refer to INSTALLING BOTH LEDS IN THE CARGO AREA .
• Refer to INSTALLING LOADING EDGE TRIM .
• Refer to INSTALLING LUGGAGE COMPARTMENT FLOOR COVERING .
• Refer to INSTALLING LOADING EDGE TRIM .
• Refer to INSTALLING LUGGAGE COMPARTMENT FLOOR COVERING .
• Refer to ACTIVATING ELECTRICAL SYSTEM .
• Refer to FILLING AND VENTING THE HIGH-TEMPERATURE COOLANT CIRCUIT .