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Home >> Audi >> 2020 >> Q7 Prestige >> Repair and Diagnosis >> External Pages >> Different car >> Section 94 (Turbocharger, Supercharger Servicing 4.0L) >> 21 Turbocharger, Supercharger >> Turbocharger >> Turbocharger, Removing And Installing >> Turbocharger, Removing Cylinder Bank 1 (Right) >> 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:

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:

WARNING: This page is about a different car, the 2022 Audi SQ7. However, it is still accessible from the selected car via links, so may be relevant.

Removing 

-- Follow the rules for clean working conditions. Refer to CLEAN WORKING CONDITIONS .

Preliminary work may be required depending on the model. Refer to TURBOCHARGER, REMOVING AND INSTALLING .

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

-- Remove the right lower air duct pipe. Refer to AIR DUCT PIPE, REMOVING AND INSTALLING .

Vehicle without Particulate Filter: 

GWWA26-12013Courtesy of AUDI OF AMERICA, LLC

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

-- Loosen the bolt-type clamp -1- and move the right catalytic converter toward the rear.

Vehicles with a Particulate Filter:

-- Remove right particulate filter. Refer to PARTICULATE FILTER, REMOVING AND INSTALLING .

All Vehicles 

GWWA21-11268Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -arrows- and then remove the retaining plate -3-.

-- Remove the coolant line -1-.

-- Remove the coolant line -2- and oil supply line -4-.

-- Remove the crankcase ventilation hose -1- by pressing the release buttons on both sides.

GWWA21-11357Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connector -3-.

-- Remove the vacuum hose -2- at the same time to not damage it.

-- Loosen the bolt-type clamp -arrow-.

GWWA21-11358Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolt -2-.

GWWA21-11359Courtesy of AUDI OF AMERICA, LLC

-- Remove the turbocharger and at the same time remove the oil return connection -1-.