Install catalytic converter

• Replace seal (1)  on catalytic converter.

  Parts:  Seal

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• Replace the V-clip (1)  .

  Parts:  V-band clamp

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• Guide in and install catalytic converter (3)  .
• Replace nuts (2)  .

  Parts:  Nuts

• Hand-tighten nuts (2)  .
• Replace the V-clip (1)  .

  Parts:  V-band clamp

• Feed in and install V-band clamp (1)  .
• Position V-ribbon clip (1)  and tighten.

  Courtesy of BMW OF NORTH AMERICA, INC.

  TIGHTENING TORQUES SPECIFICATIONS
  
  

  V-ribbon clip of catalytic converter to exhaust turbocharger
  V-band clamp Replace V-band clamp.	Tightening torque	13 Nm

• Tighten nuts (2)  .
  TIGHTENING TORQUES SPECIFICATIONS
  
  

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

• Feed in rubber mount (1)  at catalytic converter and install.

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If installed: Installing the differential pressure sensor with the pressure line 

• Use the special tool 5 A19 557  for tightening the union nut.

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• Version A 

  Feed in and install the pressure line (2)  in the holder (3)  .

  Tighten the union nut (1)  with the special tool 5 A19 557  .

  TIGHTENING TORQUES SPECIFICATIONS
  
  

  Pressure line on catalytic converter
  Coupling nut	Tightening torque	20 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

• Version B 

  Feed in and install the pressure line (2)  in the holder (3)  .

  Tighten the union nut (1)  with the special tool 5 A19 557  .

  TIGHTENING TORQUES SPECIFICATIONS
  
  

  Pressure line on catalytic converter
  Coupling nut	Tightening torque	20 Nm

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• Guide in and install differential pressure sensor (4)  .
• Tighten down screw (3)  .
  TIGHTENING TORQUES SPECIFICATIONS
  
  

  Differential pressure sensor to holder
  screw	Tightening torque	4 Nm

• Replace pressure hose (2) 

  Parts:  Pressure hose

• Connect pressure hose (2)  to differential pressure sensor (4)  .
• Connect connectors (1)  and lock.

  The connector (1)  must engage audibly.

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• Guide in and install cover (2)  .
• Lock the detents (1)  .

  The detents (1)  must engage audibly.

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work 

• Refer to INSTALLING THE COMPLETE EXHAUST SYSTEM .
• Refer to INSTALLING THE REAR LEFT TORSION STRUT .
• Refer to INSTALLING THE REAR TUNNEL CONNECTING SUPPORT .
• Refer to INSTALLING UNDERBODY PROTECTION AT REAR .
• Refer to INSTALLING THE FRONT UNDERBODY PROTECTION WITH THE STIFFENING PLATE .
• Refer to INSTALLING THE OXYGEN SENSOR MONITOR .
• Refer to INSTALLING LAMBDA OXYGEN SENSOR .
• Refer to INSTALLING CLEAN AIR PIPE .
• Refer to INSTALLING ACOUSTIC COVER .
• Refer to INSTALLING SECOND UPPER FIREWALL .
• Refer to INSTALLING THE RIGHT WINDSHIELD PANEL COVER .
• Refer to INSTALLING THE BATTERY COVER .
• Refer to INSTALLING THE LEFT WINDSHIELD PANEL COVER .
• Refer to INSTALLING THE REAR HOOD SEAL .
• Refer to INSTALLING LEFT AND RIGHT WIPER ARM .