REP-TAT-P-1812-25-F30B58 Replacing the front silencer

Exhaust system 

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Overview or exhaust system

1. Front silencer
2. Rear silencer

• If the separation point is not marked by a punch mark in the pipe, determine the separation point by means of the pipe length on the new front silencer (1).
• Carry over separation point to faulty front silencer (1) and mark.
• Secure the front silencer (1) and the rear silencer against falling down.
• Cut through exhaust pipe at marked point with a suitable tool.

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• Detach the ribbon clamp (1).
• Loosen nut (2).
• Lower and remove front silencer with assistance of a second person.

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• Replace the front silencer (1).

  Parts  : Front silencer

• Fit the new front silencer (1) and connect it with the clamps to the rear silencer and the catalytic converter.

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• Replace the (1) ribbon clamp.
• Parts  : Ribbon cable clamp
• 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

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• Replace nut (2).

  Parts  : Nut

• Tighten nut (2).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Front Silencer/Gasoline Particulate Filter On Transmission Holder
  M8 Replace nut.	tightening torque	19 Nm

• Center and tighten clamp (1).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Clamp With Partial Replacement Of Exhaust System
  Clamp	tightening torque	45 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.