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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  CAUTION: Heavy component  .
  Heavy components can lead to injury or damage  .

  • Remove and install heavy components with the aid of another person/other persons.
• Guide in and install the catalytic converter (1)  in the arrow direction.
• Make sure that the oxygen sensor monitor (2)  is not damaged.

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• Replace the V-clip (2)  .

  Parts:  V-band clamp

• Feed in and install V-band clamp (2)  on the catalytic converter (3)  .
• Position the bolt (1)  .

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• Version A: 
• Replace the screw (1)  .

  Parts:  Screw

  Position the bolt (1)  .

  Replace nut (2)  .

  Parts:  Nut

  Position the nut (2)  .

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• Version B: 

  Replace nuts (1)  .

  Parts:  Nut

  Position nuts (1)  .

• Position the catalytic converter (3)  .

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• Position V-clip (2)  .
  NOTE: Make sure the V-ribbon clip is installed in the correct position.
• Tighten down screw (1)  .
  TIGHTENING TORQUES SPECIFICATION
  
  

  Catalytic converter/gasoline particulate filter to exhaust turbocharger
  V-ribbon clamp Replace V-ribbon clamp.	tightening torque	13 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

• Version A: 

  Tighten down screw (1)  .

  TIGHTENING TORQUES SPECIFICATION
  
  

  Catalytic converter to holder
  M8 Replace nuts.	tightening torque	19 Nm

• Tighten nut (2)  .
  TIGHTENING TORQUES SPECIFICATION
  
  

  Catalytic converter to holder
  M8 Replace nuts.	tightening torque	19 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

• Version B: 

  Tighten nuts (1)  .

  TIGHTENING TORQUES SPECIFICATION
  
  

  Catalytic converter to holder
  M8 Replace nuts.	tightening torque	19 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

• Replace pressure hose (1)

  If necessary, cut open the tight pressure hose with a suitable tool.

  Parts:  Pressure hose

• Insert the pressure hose (1)  in the arrow direction all the way to the stop.
• Make sure that the pressure hose is at least at a 10 mm distance to the adjacent components  .

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Follow-up work 

• Refer to INSTALLING THE COMPLETE EXHAUST SYSTEM .
• Refer to INSTALLING THE CONNECTING SUPPORTS ON THE TUNNEL .
• Refer to INSTALLING THE RIGHT REAR TORSION STRUT .
• Refer to INSTALLING LAMBDA OXYGEN SENSOR .
• Refer to INSTALLING ACOUSTIC COVER AT REAR .
• Refer to INSTALLING ACOUSTIC COVER .
• Refer to INSTALLING THE REAR HOOD SEAL .