Install catalytic converter

• Replace the V-clip (1)  .

  Parts:  V-band clamp

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• Replace the seal (1).

  Parts:  Seal

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• Feed in and install catalytic converter.
• Lock clamp (1)  .

  Clamp (1)  must engage audibly.

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• Tighten V-clip (1)  .
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Catalytic converter to exhaust turbocharger
  V-band clamp Replace V-band clamp.	Tightening torque	19 Nm

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• Replace nuts (1)  .

  Parts:  Nuts

• Tighten nuts (1)  .
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Catalytic converter to holder
  M8 Nut Replace nut.	Tightening torque	19 Nm

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  NOTE: The following step(s) must be performed if the listed component(s) is/are installed.
• Replace pressure hose (1) 

  Parts:  Pressure hose

• Insert the pressure hose (1)  in the arrow direction all the way to the stop.

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  • Installing thrust field (all-wheel drive) 
• Version A: 

  Position stiffening plate (1)  .

  Replace screws (2)  .

  Parts:  Screws

  Tighten down screws (2)  .

  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Thrust field to front axle support
  M8 Replace screws.	Joining torque	25 Nm
  	Angle of rotation	70°

  Courtesy of BMW OF NORTH AMERICA, INC.

• Tighten down screws (3)  .
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Cover, steering unit
  screw	Tightening torque	3 Nm

• Tighten down screws (4)  .
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Underbody protection
  screw	Tightening torque	3 Nm

• Version B: 

  Replace screws (2)  .

  Parts:  Screws

  Position stiffening plate (1)  .

  Tighten down screws (2)  .

  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Thrust field to front axle support
  M8 Replace screws.	Joining torque	25 Nm
  	Angle of rotation	70°

  Courtesy of BMW OF NORTH AMERICA, INC.

• Replace screws (3)  .

  Parts:  Screws

• Tighten down screws (3)  .
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Cover, steering unit
  screw	Tightening torque	3 Nm

• Replace screws (4)  .

  Parts:  Screws

• Tighten down screws (4)  .
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Underbody protection
  screw	Tightening torque	3 Nm

• Insert steering gear aggregate protective plate (1).
• Tighten screws (arrows).
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Underbody protection
  screw	Tightening torque	3 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

  NOTE: The following step(s) must be performed if the listed component(s) is/are installed.
• Replace screws (2)  .

  Parts:  Screws

• Position stiffening plate (1)  .
• Tighten down screws (2)  .
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Thrust field to front axle support
  M8  Replace screws.	Joining torque	25 Nm
  	Angle of rotation	70°

  Courtesy of BMW OF NORTH AMERICA, INC.

• Tighten down screws (3)  .
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Cover, steering unit
  screw	Tightening torque	3 Nm

  NOTE: The following step(s) must be performed if the listed component(s) is/are installed.
• Replace screws (2)  .

  Parts:  Screws

• Position stiffening plate (1)  .
• Tighten down screws (2)  .

  Courtesy of BMW OF NORTH AMERICA, INC.

  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Thrust field to front axle support
  M8 Replace screws.	Joining torque	25 Nm
  	Angle of rotation	70°

• Tighten down screws (3)  .
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Thrust field to holder
  M6	Tightening torque	2.3 Nm

• Tighten down screws (4)  .
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Underbody protection
  screw	Tightening torque	3 Nm

• Insert the front underbody protection (1)  .
• Tighten screws (arrows).
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Underbody protection
  screw	Tightening torque	3 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work 

• Refer to INSTALLING THE OXYGEN SENSOR MONITOR .
• Refer to INSTALLING LAMBDA OXYGEN SENSOR .
• Refer to INSTALLING THE HOLDER OF THE POSITIVE BATTERY CABLE .
• Refer to INSTALLING THE RESONATOR WITH THE TOP CLEAN AIR PIPE .
• Refer to INSTALLING INTAKE SILENCER HOUSING .
• Refer to INSTALLING ACOUSTIC COVER .
• Refer to INSTALLING THE COMPLETE EXHAUST SYSTEM .
• Refer to INSTALLING THE REAR DIFFUSER .
• Refer to INSTALLING THE REAR AXLE COVER .
• Refer to IF INSTALLED: INSTALLING THE TORSION STRUT ON THE RIGHT, AND ON THE LEFT WHERE REQUIRED .
• Refer to INSTALLING THE CONNECTING SUPPORTS ON THE TUNNEL .
• Refer to INSTALLING REAR UNDERBODY PROTECTION .