Turbocharger, Removing And Installing: Removing

If mechanical damage (such as a destroyed compression wheel) is found on the turbocharger, just replacing the turbocharger is not enough. To avoid subsequent damage later, perform the following steps: 

• Check the air filter housing, air filter element and air duct hoses for contamination.
• Check the entire charge air circuit and charge air cooler for foreign objects.
• If there are foreign objects in the charge air system, clean the charge air circuit and replace the charge air cooler if necessary.
• Replace the oil screen -Item 3- OVERVIEW - MECHANICAL CONTROL VALVE, CHECK VALVE, COVER IN INNER V .

Left Turbocharger 

-- Remove the housing for the charge air cooler. Refer to CHARGE AIR COOLER HOUSING, REMOVING AND INSTALLING .

Right Turbocharger 

-- Remove the right secondary air injection combination valve. Refer to COMBINATION VALVE, REMOVING AND INSTALLING .

Continued for Both Sides 

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-- Remove the left and right front muffler. Refer to FRONT MUFFLER, REMOVING AND INSTALLING .

-- Remove the plenum chamber bulkhead. Refer to Bulkhead .

-- Remove the connectors from the bracket, disconnect them and then free up the wires.

1 - For Oxygen Sensor after Three Way Catalytic Converter -G130- -3-

4 - For Heated Oxygen Sensor -G39- -2-

-- Free up the wiring harness for the Heated Oxygen Sensor 2 -G108- and Oxygen Sensor 2 after Catalytic Converter -G131-.

NOTE:

The catalytic converter for the cylinder bank 1 (right) is on the left in the vehicle.

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-- Remove the nuts -arrows- from the cylinder bank 1 (right) and then remove the catalytic converter in the left of the vehicle, toward the rear.

NOTE:

The catalytic converter for the cylinder bank 2 (left) is on the right in the vehicle.

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-- Remove the nuts -arrows- from the cylinder bank 2 (left) and then remove the catalytic converter on the right in the vehicle, toward the rear.

-- Remove the bolts -1, 4, and 7-, then remove the retaining plates -2 and 6-.

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-- Remove the coolant lines -3 and 5- from the left and right turbocharger.

-- Remove the bolts -1, 3- and then press the lower rear coolant pipe -2- toward the rear.

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-- Remove the bolts -1, 2, and 3- and then remove the turbocharger support -4-.

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-- Lift up the spring -2- with a small screwdriver and remove the actuator rod -3- from the ball studs to remove the turbocharger actuator rod in question -Item 22-  OVERVIEW - TURBOCHARGER.

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-- Disconnect the left and right connectors -1 and 2-.

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-- Remove the bolts -arrows- and then remove the air guide pipe -1-.

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Left Turbocharger: 

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-- Disconnect the connector -arrow-.

-- Remove the bolts -1 and 3- and then remove the hose lines.

-- Loosen the hose clamps -2- to remove the oil return hose.

-- Remove the nuts in a -8 to 1- sequence and then remove the turbocharger.

Fig 1: Left Turbocharger Tightening Sequence

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Right Turbocharger: 

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-- Disconnect the connector -arrow-.

-- Remove the bolts -1 and 2- and then remove the hose lines.

-- Loosen the hose clamps -3- to remove the oil return hose.

-- Remove the nuts in a -8 to 1- sequence and then remove the turbocharger.

Fig 2: Right Turbocharger Tightening Sequence

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