Knock Sensor, Removing And Installing: Removing

Knock Sensor 1 -G61- Cylinder Bank 1 (Right) 

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-- Remove the cylinder "2" FSI fuel injector. Refer to FUEL INJECTORS, REMOVING AND INSTALLING, FSI FUEL INJECTION .

-- Remove the connector -arrow- from the bracket, disconnect it, and free up the wire.

Knock Sensor 2 -G66- Cylinder Bank 2 (Left) 

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-- Remove the cylinder "5" FSI fuel injector. Refer to FUEL INJECTORS, REMOVING AND INSTALLING, FSI FUEL INJECTION .

-- Remove the plenum chamber bulkhead. Refer to PLENUM CHAMBER BULKHEAD, REMOVING AND INSTALLING .

-- Remove the connector -arrow- from the bracket, disconnect it, and free up the wire.

Continued For Both Sides 

Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolt -1- for Knock Sensor 1 -G61- or the bolt -2- for the Knock Sensor 2 -G66- and then remove the knock sensor.