Left 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 left front muffler. Refer to FRONT MUFFLER, REMOVING AND INSTALLING .

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

-- Remove the connector -3- for the Oxygen Sensor 2 after Catalytic Converter -G131- from the bracket, disconnect it and free up the wire.

Fig 1: Disconnecting Connector To Fuel Injectors

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NOTE:

Ignore items -1 and 2-.

-- Remove the bolt -1- and nuts -arrows-. Then remove the left catalytic converter from the exhaust manifold.

Fig 2: Identifying Left Catalytic Converter, Nuts And Bolt

Courtesy of AUDI OF AMERICA, LLC

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

Fig 3: Identifying Heat Shield Bolts

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-- Remove the bolts -3- for the secondary air hose.

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

-- Remove the bolts -1- and remove the AIR combination valve.

Fig 4: Identifying Vacuum Line -2- And Secondary Air Injection (Air) Combination Valve

Courtesy of AUDI OF AMERICA, LLC