Catalytic Converter, Removing And Installing, Vehicles With Two Turbochargers: Removing

-- Remove the steering intermediate shaft from the steering gear and then push the splines into each other, refer to STEERING INTERMEDIATE SHAFT, REMOVING AND INSTALLING .

-- Remove the front exhaust pipe, refer to EXHAUST PIPE, REMOVING AND INSTALLING, VEHICLES WITH TWO TURBOCHARGERS. .

-- Remove the heated oxygen sensor, refer to HEATED OXYGEN SENSOR, REMOVING AND INSTALLING .

-- Remove the Exhaust Gas Temperature Sensor 2 -G448-, refer to EXHAUST GAS TEMPERATURE SENSOR 2 -G448-, INSTALLING AND REMOVING, VEHICLES WITH TWO TURBOCHARGERS .

-- Remove the subframe crossbrace, refer to SUBFRAME CROSSBRACE, REMOVING AND INSTALLING .

-- Remove bolts -arrows- and then remove the heat shield.

Fig 1: Heat Shield - Tightening Specification

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-- Remove the left longitudinal member bolts -arrows- and remove the heat shield -1-.

Fig 2: Identifying Subframe Heat Shield Bolts

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-- If equipped remove the bolts -arrows-.

Fig 3: Transmission Fluid Cooling Valve -N509- Component Location

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-- Disconnect the connector -1-, and set aside the Transmission Fluid Cooling Valve -N509- with the coolant hoses -2- still attached.

-- Remove the bolts and nuts -arrows-, and remove the heat shield -1-.

Fig 4: Identifying Heat Shield

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-- Remove the Exhaust Gas Temperature Sensor 3 -G495- -item 1- and pressure pipe -3- for the Differential Pressure Sensor -G505-.

Fig 5: Differential Pressure Sensor - G505- Component Location

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Vehicles with an SCR system: 

Fig 6: NOx Sensor -G295- Component Location

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-- Remove the NOx Sensor -G295- -arrow- free up and set to the left side.

Continuation for All Vehicles: 

Fig 7: Identifying Nuts

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-- Remove the nuts -arrows-.

-- Remove the bolts -1 and 2- and remove the bracket.

Fig 8: Identifying Bolts

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Vehicles with an SCR system:

Fig 9: Identifying Noise Insulation -1-

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-- Remove the left driveshaft cover -1- in the wheel housing.

-- Remove the bolts -arrows- and remove the left drive axle heat shield.

Fig 10: Identifying Bolts And Left Drive Axle Heat Shield

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-- Remove the nuts -1 and 2-. If required disengage the catalytic converter with a second technician from the turbocharger.

Fig 11: Identifying Nuts -1 And 2-

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-- To improve the accessibility for the next step, push the catalytic converter to the side.

• Position -1- = Catalytic Converter Heater 1 -Z119-
• Position -2- = Catalytic Converter Heater 2 -Z120-

-- Remove the connection for the Catalytic Converter Heater 1 -Z119- and Catalytic Converter Heater 2 -Z120- with the Puller T40317.

Fig 12: Identifying Catalytic Converter Heater And Puller

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Continuation for All Vehicles: 

-- Remove the catalytic converter.