Installing the catalytic converter for cylinders 1 to 4 (Without Gasoline Particulate Filter)

• Replace gasket on exhaust turbocharger.

  Parts:  Gasket

• Guide in and install the catalytic converter (1) for cylinders 1 to 4 in the arrow direction.
• Connect the catalytic converter (1) for cylinders 1 to 4 to the exhaust gas turbocharger.

  Courtesy of BMW OF NORTH AMERICA, INC.

• If necessary, replace clamp (1).

  Parts:  cl

• Mount and tighten clamp (1).

  The circlip must be mounted with the screw connection on the inside.

  Courtesy of BMW OF NORTH AMERICA, INC.

  TIGHTENING TORQUES SPECIFICATION
  
  

  Catalytic converter to exhaust turbocharger
  cl Replace clamp after disassembly.	Tightening torque	14 Nm

• Install holder (4).
• Tighten down screws (1).

  Tightening torques 

  Courtesy of BMW OF NORTH AMERICA, INC.

  Catalytic converter on cylinder head/cylinder head cover/holder
  M8x20	Tightening torque	21 Nm

• Tighten down screws (2).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Catalytic converter on cylinder head/cylinder head cover/holder
  M8x20	Tightening torque	21 Nm

• Tighten down screw (3).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Catalytic converter on cylinder head/cylinder head cover/holder
  M8x20	Tightening torque	21 Nm

For equipment specification without SA1DC gasoline particulate filter 

• Equipment specification without gasoline particulate filter: 

• Mount catalytic converter for cylinders 1 to 4 on holder.
• Replace screws (1).

  Parts:  Nuts

• Tighten down screws (1).

  Courtesy of BMW OF NORTH AMERICA, INC.

  TIGHTENING TORQUES SPECIFICATION
  
  

  Catalytic converter to holder
  M8x20 Replace screw.	Tightening torque	19 Nm

Follow-up work 

• Refer to RELEASING THE HEAT SHIELD .
• Refer to INSTALLING THE CENTER COWL UPPER PART .
• Refer to INSTALL TENSION STRUT ON SHOCK TOWER .
• Refer to INSTALLING WINDSHIELD PANEL COVER .
• Refer to INSTALL LEFT AND RIGHT WIPER ARM .
• Refer to INSTALL THE REAR RIGHT ENGINE COMPARTMENT COVER .
• Refer to INSTALL THE COVER OF THE ENGINE COMPARTMENT ON THE REAR LEFT .
• Refer to INSTALL RIGHT HEAT SHIELD .
• Refer to INSTALL LEFT HEAT SHIELD .
• Refer to INSTALL HEAT SHIELD, TOP .
• Refer to INSTALLING THE RIGHT OXYGEN SENSOR MONITOR .
• Refer to INSTALLING THE LEFT OXYGEN SENSOR MONITOR .
• Refer to PARTLY INSTALLING THE RIGHT LAMBDA OXYGEN SENSOR .
• Refer to PARTIALLY INSTALLING THE LEFT LAMBDA OXYGEN SENSOR .
• Refer to INSTALLING THE RETAINING BRIDGE .
• Refer to INSTALL EXHAUST SYSTEM .
• Refer to INSTALLING CENTER REAR UNDERSHIELD .
• Refer to INSTALL THE CONNECTING SUPPORTS ON THE TUNNEL .