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Home >> Audi >> 2012 >> Q7 3.0 TDI >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (3.0L - Exhaust System & Emission Controls - Engine Code(S): CJTB, CJTC, CNAA, CJWB, CJWC, CJWE, CTWA, CTWB) >> 26 Exhaust System, Emission Controls >> Muffler >> Left Catalytic Converter, Removing And Installing >> Removing

Left Catalytic Converter, Removing And Installing: Removing

WARNING: This page is about a different variant/trim than selected.
NOTE:

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

-- Loosen the hose clamps -arrows- and lay the air guide pipe aside with the vacuum hose -1- connected.

Fig 1: Identifying Air Guide Pipe And Clamps
GWWA24-10813Courtesy of AUDI OF AMERICA, LLC

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

-- Remove the connector -3- for the Oxygen Sensor 2 after Catalytic Converter -G131- from the bracket on the right suspension strut tower, then disconnect it and free up the heated oxygen sensor.

Fig 2: Identifying Electrical Connectors
GWWA24-10175Courtesy of AUDI OF AMERICA, LLC
NOTE:

Ignore items -1, 2 and 4-.

-- Remove the bolts -1 and arrows- and then remove the bracket -2- for the catalytic converter.

Fig 3: Identifying right bracket -2- And Bolts
GWWA26-10958Courtesy of AUDI OF AMERICA, LLC
NOTE:

The bolt -1- is accessible from the top.

-- Remove the nuts -arrows- and then remove the catalytic converter.

Fig 4: Identifying Catalytic Converter Nuts -Arrows-
GWWA26-10964Courtesy of AUDI OF AMERICA, LLC