Left Combination Valve, Removing And Installing: Removing

WARNING: This page is about a different car, the 2012 Audi Q5 and 2011 Audi Q5. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Strut Tower Brace And Fasteners

Courtesy of AUDI OF AMERICA, LLC

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 tower brace, refer to TOWER BRACE, REMOVING AND INSTALLING .

-- Remove the electrical connector -1- for the Oxygen Sensor 2 after Catalytic Converter -G131- from the bracket, disconnect it and lay it aside.

Fig 2: Cylinder Bank 2 Oxygen Sensor Electrical Connectors

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Ignore items -2, 3, 4- and the -arrows-.

-- Remove the nuts -arrows- and screw -1- and disconnect the left catalytic converter from the exhaust manifold and push it rearward.

Fig 3: Identifying Left Catalytic Converter Fasteners

Courtesy of AUDI OF AMERICA, LLC

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

Fig 4: Identifying Heat Shield Bolts

Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -1- and -2- and the left secondary air combination valve.

Fig 5: Identifying Secondary Air Pipe

Courtesy of AUDI OF AMERICA, LLC

Fig 1: Identifying Strut Tower Brace And Fasteners

Courtesy of AUDI OF AMERICA, LLC

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 tower brace, refer to TOWER BRACE, REMOVING AND INSTALLING .

-- Remove the electrical connector -1- for the Oxygen Sensor 2 after Catalytic Converter -G131- from the bracket, disconnect it and lay it aside.

Fig 2: Cylinder Bank 2 Oxygen Sensor Electrical Connectors

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Ignore items -2, 3, 4- and the -arrows-.

-- Remove the nuts -arrows- and bolt -1- and disconnect the left catalytic converter from the exhaust manifold and push it rearward.

Fig 3: Identifying Left Catalytic Converter Fasteners

Courtesy of AUDI OF AMERICA, LLC

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

Fig 4: Identifying Heat Shield Bolts

Courtesy of AUDI OF AMERICA, LLC

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

Fig 5: Identifying Vacuum Line -2- And Secondary Air Injection (Air) Combination Valve

Courtesy of AUDI OF AMERICA, LLC

-- Remove the vacuum line -2- from the secondary air injection combination valve.

-- Remove the bolts -1- and remove the secondary air injection combination valve.