LEMON Manuals: Even more car manuals for everyone
Home >> Audi >> 2018 >> S3 Premium Plus >> Repair and Diagnosis >> External Pages >> Different car >> Section 49 (EXHAUST SYSTEM, EMISSION CONTROLS (4-Cylinder Direct Injection 1.8L; 2.0L 4V TFSI Engine) -- (A3 SEDAN)) >> 26 Exhaust System, Emission Controls >> Emissions Control System >> Catalytic Converter, Removing And Installing >> Removing

Catalytic Converter, Removing And Installing: Removing

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2017 Audi S3, 2017 Audi A3 Quattro, 2016 Audi S3, 2016 Audi A3 Quattro, and 2015 Audi S3. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

During installation, install all cable ties back at the same position.

-- Remove the connector -2- from the bracket, disconnect it and free up the wires.

GWWA24-11137Courtesy of AUDI OF AMERICA, LLC

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

GWWA26-10998Courtesy of AUDI OF AMERICA, LLC

-- Remove the nuts -1 and 3-.

NOTE:

The installation position is shown in the illustration with the engine removed for clarity.

-- If equipped, remove the noise insulation -1-. Refer to NOISE INSULATION .

GWWA66-11001Courtesy of AUDI OF AMERICA, LLC

FWD Vehicles:

GWWA66-11002Courtesy of AUDI OF AMERICA, LLC

-- Remove the front tunnel brace -1-. Refer to UNDERBODY TRIM PANEL .

AWD Vehicles:

GWWA34-10415Courtesy of AUDI OF AMERICA, LLC

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

-- Remove the Oxygen Sensor after Catalytic Converter -G130-. Refer to HEATED OXYGEN SENSOR, REMOVING AND INSTALLING .

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

GWWA34-11071Courtesy of AUDI OF AMERICA, LLC

-- Mark the position of flexible disc and the bevel box flange to each other for reinstallation.

GWWA10-10247Courtesy of AUDI OF AMERICA, LLC

-- Using a lever to counterhold the triangular flange, remove the driveshaft from the bevel box -arrows-.

-- Remove the bolts -2 and 3-.

GWWA10-11615Courtesy of AUDI OF AMERICA, LLC

-- Press the engine/transmission assembly slightly forward (toward the front end) and remove the driveshaft from the bevel box.

GWWV39-1817Courtesy of AUDI OF AMERICA, LLC
CAUTION:

Risk of damaging the gasket -arrow- in the driveshaft flange.

  • Press driveshaft horizontally as far back and to the left side of the vehicle as possible.
NOTE:

If the gasket is damaged, the driveshaft must be replaced.

Continuation for All Vehicles:

GWWA26-10512Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -arrows-.

-- Loosen the clamping sleeve -arrow- and push it toward the rear.

GWWA26-11377Courtesy of AUDI OF AMERICA, LLC

-- Remove the catalytic converter with the front exhaust pipe.