Catalytic Converter — LH, 3.5L GTDI

Removal

NOTE: Always install new fasteners and gaskets. Clean flange faces prior to new gasket installation to make sure of correct sealing.

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, REFER to Section 100-02 .

2. Remove the LH HO2S . For additional information, REFER to Section 303-14 .

3. Remove the LH exhaust flexible pipe. For additional information, refer to Exhaust Flexible Pipe — LH, 3.5L GTDI in this section.

4. If equipped, remove the 10 retainers and the skid plate.

5. Disconnect the LH CMS electrical connector.

6. Remove the 3 LH catalytic converter-to-turbocharger nuts and the catalytic converter.
   • Discard the nuts and gasket.

Installation

1. Inspect the LH turbocharger-to-catalytic converter studs for damage.
   • If damaged or if a stud comes out when removing the nut, replace the stud.
   • Tighten to 25 Nm (18 lb-ft).

2. NOTICE: Failure to tighten the LH catalytic converter manifold-to-turbocharger nuts to specification a second time will cause the LH catalytic converter manifold-to-turbocharger to develop an exhaust leak.

   Using a new gasket and 3 new nuts, install the LH catalytic converter manifold to the turbocharger. Tighten the LH catalytic converter manifold in 2 stages.
   • Stage 1: Tighten to 40 Nm (30 lb-ft).
   • Stage 2: Tighten to 40 Nm (30 lb-ft).

3. Connect the LH CMS electrical connector.

4. If equipped, install the skid plate and the 10 retainers.
   • Tighten to 70 Nm (52 lb-ft).

5. Install the LH exhaust flexible pipe. For additional information, refer to Exhaust Flexible Pipe — LH, 3.5L GTDI in this section.

6. Install the LH HO2S . For additional information, REFER to Section 303-14 .