Right Combination Valve, Removing And Installing: Removing

WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2017 Audi S5, 2016 Audi S5, 2016 Audi S4, 2015 Audi S5, and 2015 Audi S4. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

When installing, bring all cable ties back to same positions.

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

-- Remove the plenum chamber bulkhead. Refer to OVERVIEW - BULKHEAD .

-- Remove the connector -1- for the Oxygen Sensor after Three Way Catalytic Converter -G130- from the bracket, disconnect it and free up the wire.

Fig 1: Disconnecting Connector From Oxygen Sensor

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Ignore -2 and 3-.

-- Remove the bolt -1- and nuts -arrows-. Then remove the right catalytic converter from the exhaust manifold and move it to the rear.

Fig 2: Identifying Nuts, Bolts And Right Catalytic Converter

Courtesy of AUDI OF AMERICA, LLC

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

Fig 3: Identifying Heat Shield Bolts

Courtesy of AUDI OF AMERICA, LLC

-- Remove the vacuum line -2- from the Secondary Air Injection (AIR) combination valve.

-- Remove the bolts -3-, remove the right secondary air combination valve and remove the screws -1- for the secondary air hose.

Fig 4: Combination Valve Bolts & AIR Pipe Bolts

Courtesy of AUDI OF AMERICA, LLC