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Home >> Audi >> 2020 >> Q3 Premium S-Line >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Turbocharger, Supercharger [DKTA,DKTC,DKXA,DHHA] >> 21 Turbocharger, Supercharger >> Turbocharger >> Turbocharger, Removing And Installing >> Removing

Turbocharger, Removing And Installing: Removing

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

-- Drain the coolant. Refer to COOLANT, DRAINING AND FILLING .

-- Remove the air filter housing. Refer to AIR FILTER HOUSING, REMOVING AND INSTALLING .

-- Remove the Oxygen Sensor 1 before Catalytic Converter -GX10-. Refer to HEATED OXYGEN SENSOR, REMOVING AND INSTALLING .

Vehicles with a particulate filter: 

GWWA10-12317Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolt -arrow- for the pressure lines.

-- Free up the pressure lines.

Continuation for all vehicles: 

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

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

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

Vehicles with a particulate filter: 

GWWA10-12318Courtesy of AUDI OF AMERICA, LLC

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

-- Disconnect the connector -2-.

GWWA10-12319Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -arrows- and move the pressure lines with the Exhaust Pressure Sensor 1 -G450- toward the rear.

Vehicles with transmission ventilation hose: 

GWWA27-10443Courtesy of AUDI OF AMERICA, LLC

-- Detach the transmission ventilation -1- from the battery tray and set aside by releasing the catch -2- and removing the transmission ventilation upward -arrow-.

-- Move the transmission ventilation hose to the side.

Continuation for all vehicles: 

GWWA21-10813Courtesy of AUDI OF AMERICA, LLC

-- Loosen the hose clamp -2-.

-- Remove the bolt -1- and push the left air duct pipe slightly to the left.

-- If equipped, remove the nut -2- and free up the ground wire -1-.

GWWA28-10148Courtesy of AUDI OF AMERICA, LLC

-- Release the connectors and simultaneously disconnect them from the ignition coils in the direction of the -arrow-.

-- If applicable, remove the bolt -1- for the ground cable. Remove the coolant hose -2-.

GWWN21-10639Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connectors -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.

CAUTION:

Risk of destroying the coolant pipes through deformation.

- Never change the coolant pipe bend shape.

-- Remove the screws -arrows-. Pivot the coolant line to the side.

-- Remove the Cam Adjustment Actuators -11, 12 and 13-.

Fig 2: Ignition Coils and Adjusting Elements
GWWA24-11091Courtesy of AUDI OF AMERICA, LLC

-- Reduce the vacuum in the brake booster by pressing the brake pedal repeatedly.

-- Remove the vacuum hose from the brake booster.

-- Remove the bolts -arrows- and double bolt -2-.

GWWA21-11409Courtesy of AUDI OF AMERICA, LLC

-- Remove the heat shield -1-. There are different versions.

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

GWWA21-10811Courtesy of AUDI OF AMERICA, LLC

-- Remove the turbocharger bracket -2-.

-- Disconnect the connector -arrow-.

GWWA21-11410Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolt -1-, turn the support in the direction of the -arrow- and remove.

GWWA21-11055Courtesy of AUDI OF AMERICA, LLC

-- Move the support to the side.

-- Remove the noise insulations. Refer to OVERVIEW - NOISE INSULATION .

Vehicles with a particulate filter: 

GWWA10-12316Courtesy of AUDI OF AMERICA, LLC

-- Remove the nuts -arrows-, free up the bracket -1- for the pressure line and push it to the side.

Continuation for all vehicles: 

Fig 3: AWD:
GWWA34-11312Courtesy of AUDI OF AMERICA, LLC

-- Remove the nuts -arrows- and remove the right drive axle heat shield -1-.

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

Fig 4: Identifying Heat Shield
GWWA34-11071Courtesy 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 line.

-- 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.

GWWE21-10055Courtesy of AUDI OF AMERICA, LLC