Install exhaust system

• Version 1 (Ribbon clamp) 

  Courtesy of BMW OF NORTH AMERICA, INC.

  Open the weld seam (1) with a conventional tool.

• Remove ribbon clamp (2).
• Replace the (2) ribbon clamp.

  Parts  : Ribbon cable clamp

  NOTE: Schematic diagram is for example purposes. Some parts may differ in certain details.
• Check all rubber mounts (1) of the exhaust system for damage and replace, if necessary.

  Courtesy of BMW OF NORTH AMERICA, INC.

  NOTE: TECHNICAL INFORMATION 
  Conduct the following operation with the assistance of a second person.
• Insert and install the exhaust system with the help of another person.
• Replace nut (1).

  Parts  : Nut

• Tighten nut (1).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Rear silencer to bumper bracket
  M8	Tightening torque	19 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

• Replace nut (1).

  Parts  : Nut

• Tighten nut (1).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Rear silencer to bumper bracket
  M8	Tightening torque	19 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 the nut (1) on the rear axle support.

  Parts  : Nut

• Tighten nut (1).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Exhaust system to rear axle carrier
  M8 Nut	Tightening torque	19 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

• Replace nut (1).

  Parts  : Nut

• Tighten nut (1).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Exhaust system to transmission
  M8	Tightening torque	19 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

• Tighten the ribbon clamp (1).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Exhaust system to catalytic converter
  Ribbon clamp nut M8 Replace the ribbon clamp.	Tightening torque	26 Nm
  Ribbon clamp nut M10 Replace the ribbon clamp.	Tightening torque	55 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

• Version 2 (V-band clamp) 

  Replace V-band clamp.

  Parts  : V-band clamp

  Unscrew the nut (1) and remove the sealing ring (2).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Bend all the sheet metal tabs, except those in the marked area, all around using a suitable tool.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Mount the V-clip (1) on the sealing ring (2).
• Make sure that the V-ribbon clip is (1) correctly positioned on the sealing ring (2).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Make sure that, after mounting, the V-ribbon clip is on the sheet metal tabs in the marked areas.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Connect the exhaust system (1) with the catalytic converter (2) and position it correctly (arrow).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Make sure that V-clip (1) is fitted correctly.
• Tighten down screw (2).
  TIGHTENING TORQUES SPECIFICATION
  
  

  V-ribbon clip to catalytic converter
  V-ribbon clip Replace V-ribbon clip.	Tightening torque	25 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

  NOTE: The following step(s) must be performed if the listed component(s) is/are installed.
• Connect and lock the connector (1).

  The connector (1) must lock audibly.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Mount cover.
• Tighten down screws (1).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Undershield
  Screw	Tightening torque	2.6 Nm
  Plastic nut	Tightening torque	2.6 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

  If installed: Install right torsion strut 

• Insert and install the torsion strut (3) on the right.
• Replace screws (2).

  Parts  : screw

• Tighten down screws (2).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Torsion strut to mounting
  M12 Replace screws.	Tightening torque	100 Nm
  	Angle of rotation	90°

  Courtesy of BMW OF NORTH AMERICA, INC.

• Tighten nut (1).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Torsion strut to compression strut
  M8	Tightening torque	28 Nm

Follow-up work 

• Install the tunnel connecting SUPPORTS .
• Install left and right tank COVER .