Installing upper catalytic converter near engine for bank 2

• Replace the V-ribbon clip (1)  .

  Parts:  V-band clamp

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• Replace gasket (1)  .

  Parts:  Seal

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• Position the catalytic converter near engine (1)  in the holder (2)  .

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• Position the catalytic converter (1)  near the engine.
• Position V-clip (3)  .
• Tighten down screw (2)  .

Catalytic converter to exhaust turbocharger
V-band clamp Replace V-band clamp.	Tightening torque	14 Nm

Courtesy of BMW OF NORTH AMERICA, INC.

• Tighten down screws (1)  .

Catalytic converter to cylinder head
screw	Tightening torque	21.4 Nm

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• Tighten down screws (1)  .

Catalytic converter to cylinder head
screw	Tightening torque	21.4 Nm

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Checking the screw connection of the V-ribbon clips 

• Replace the V-ribbon clip (1)  .

  Parts:  V-ribbon clip

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Check 

• Check if the screw connection of the V-band clamp is too loose.

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Result 

» The screw connection is too slack. If a gap can be seen between the ends of the V-ribbon clips.

Measure

• Loosen the screw and tighten again.

Check 

• Check if the screw connection of the V-band clamp is too tight.

Courtesy of BMW OF NORTH AMERICA, INC.

Result 

» The screw connection is too slack. The ends of the V-ribbon clip are not positioned parallel.

Measure

• Release the screw and replace the V-ribbon clip.

  Parts:  V-ribbon clip

  • Make sure that the ends of the V-band clamp are parallel to each other.

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Follow-up work 

• Refer to INSTALLING HEAT SHIELD, TOP .
• Refer to INSTALLING EXPANSION TANK FOR THE CHARGE AIR COOLER .
• Refer to INSTALLING COOLANT EXPANSION TANK .
• Refer to INSTALLING THE HOLDER OF THE DME CONTROL UNIT FOR CYLINDERS 5 TO 8 .
• Refer to INSTALLING THE LAMBDA OXYGEN SENSOR FOR CYLINDERS 5 TO 8 .
• Refer to INSTALLING THE PRIMARY OXYGEN SENSOR FOR CYLINDERS 1 TO 4 .
• Refer to INSTALLING ACOUSTIC COVER .
• Refer to INSTALLING THE COVER PANEL OF THE SLAVE DME CONTROL UNIT .
• Refer to INSTALLING THE COVER PANEL OF THE MASTER DME CONTROL UNIT .
• Refer to INSTALLING THE CATALYTIC CONVERTER NEAR ENGINE, BOTTOM AT BANK 2 .
• Refer to CONNECTING THE EXHAUST SYSTEM .
• Refer to INSTALLING THE STIFFENING PLATE .
• Refer to REMOVING UNDERBODY PROTECTION AT SIDE RIGHT AND LEFT .
• Refer to INSTALLING FRONT UNDERBODY PROTECTION .