Installing the Three-Way Catalytic Converter (TWC)

Fig 1: Three-Way Catalytic Converter And Turbocharger

Courtesy of VOLVO CARS OF NORTH AMERICA.

Pull up and align the three-way catalytic converter (TWC) against the turbocharger (TC).

Tighten the three-way catalytic converter (TWC) to the turbocharger (TC). Use new nuts  . Torque tighten.

Install: 

• the upper heated oxygen sensors (HO2S) according to the marks made after removal. Lubricate the threads using copper paste 116 1408  . Tighten to 45 Nm  .
• lower the wiring down for the heated oxygen sensors (HO2S). Secure the wiring in the clips and clamps. Connect the wiring
• the heat deflector plates
• the charge air pipe for the turbocharger (TC) for cylinders 1-3
• the engine stabilizer brace between the spring strut turrets.