Rear Coolant Pipe 3, Removing And Installing: Removing

-- Remove the rear coolant pipe 6. Refer to REAR COOLANT PIPE 6, REMOVING AND INSTALLING .

Vehicles with Catalytic Converter

-- Remove the right catalytic converter. Refer to CATALYTIC CONVERTER, REMOVING AND INSTALLING .

Vehicles with a Particulate Filter

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

Continuation for All Vehicles

Courtesy of AUDI OF AMERICA, LLC

-- Open the heat shield boot.

-- Disconnect the connector -2-.

-- Remove bolts -arrows-, and set aside the Transmission Coolant Valve -N488-.

-- Free up the wiring harness.

Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -arrows- and the coolant pipe -1-. (The engine is removed from the image for better clarity.)