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Home >> Audi >> 2018 >> S3 Prestige >> Repair and Diagnosis >> External Pages >> Different car >> Section 174 (Turbocharger, Supercharger [CZPB,CZRA,DBFB] -- (A3)) >> 21 Turbocharger, Supercharger >> Turbocharger >> Turbocharger, Removing And Installing >> Removing

Turbocharger, Removing And Installing: Removing

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-- Follow the guidelines for clean working conditions. Refer to GUIDELINES FOR CLEAN WORKING CONDITIONS .

-- Drain the coolant. Refer to Cooling SystemCooling System .

-- Remove the air filter housing. Refer to Air FilterAir Filter .

-- Remove the Heated Oxygen Sensor -G39-. Refer to HEATED OXYGEN SENSOR, REMOVING AND INSTALLING .

-- Remove the bolt -2- and the screw-type clamp.

Fig 1: Catalytic Converter - Tightening Sequence
GWWA26-10998Courtesy of AUDI OF AMERICA, LLC

-- Remove the nuts -1 and 3- and move the catalytic converter to the side. (Shown with the engine removed.)

-- Loosen the hose clamp -2-.

GWWA21-10813Courtesy of AUDI OF AMERICA, LLC

-- Remove bolt -1-, push the left air guide pipe left.

-- Remove the nut -2- and free up the ground wire -1-.

GWWA28-10148Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connectors and remove from the ignition coils at the same time in direction of -arrows-.

-- Remove the bolt -arrow- and remove the connection from the cylinder head.

GWWA21-11308Courtesy of AUDI OF AMERICA, LLC

-- Loosen the hose clamps -1 and 2- and remove the coolant hoses.

GWWA21-11134Courtesy of AUDI OF AMERICA, LLC

-- Remove the wiring duct -3- upward from the bracket to do so release the catch.

-- Remove the bolts -arrows-. Pivot the coolant pipe to the side.

-- Disconnect the connector -1- for the Vacuum Sensor -G608-.

GWWA47-10245Courtesy of AUDI OF AMERICA, LLC

-- Carefully remove the vacuum hose from the brake booster.

-- Remove the bolts -arrows- and nut -1- and remove the heat shield -2-.

GWWN21-10835Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolt -1-. Just loosen the bolt -3-.

GWWA21-10811Courtesy of AUDI OF AMERICA, LLC

-- Remove the turbocharger bracket -2-.

-- Remove the bolt -1-, turn the connection in direction of -arrow-, pull it out and push it to the side.

GWWA21-11055Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connectors -1 and 3-.

GWWA21-10911Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolt -1- and then remove the connections.

GWWA21-11199Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -2 and 3-, and remove the oil supply line and oil return pipe.

-- Open the hose clamp -arrow-.

-- Remove the nuts -arrows-.

GWWA21-10812Courtesy of AUDI OF AMERICA, LLC

-- Remove the turbocharger from the cylinder head and remove it upward.