Knock Sensor, Removing And Installing: Removing

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

Component locations, refer to OVERVIEW - IGNITION SYSTEM .

NOTE:

Install all cable ties and heat shield boots in the same locations when installing.

Knock Sensor 1 -G61-

-- Remove the generator, refer to GENERATOR, REMOVING AND INSTALLING .

-- Disconnect the connector -1-.

-- Remove the bolt -2- and Knock Sensor 1 -G61-.

Fig 1: Identifying Knock Sensor 1, Connector And Bolt

GWWA28-10066

Courtesy of AUDI OF AMERICA, LLC

Knock Sensor 2 -G66- /Knock Sensor 3 -G198- :

-- Disconnect the connectors -1 and 2-.

Fig 2: Identifying Knock Sensor 2 And 3 Connectors

GWWA24-10928

Courtesy of AUDI OF AMERICA, LLC

-- Remove the left and right fuel rails, refer to FUEL INJECTORS, REMOVING AND INSTALLING .

-- Remove the bolt and each knock sensor:

Knock Sensor 2 -G66-
Knock Sensor 3 -G198-

Fig 3: Identifying Knock Sensor 2 And 3 Bolts

GWWA28-10065

Courtesy of AUDI OF AMERICA, LLC

Knock Sensor 4 -G199-

Fig 4: Identifying Front Wheel Housing Liner

GWWA66-10665

Courtesy of AUDI OF AMERICA, LLC

-- Remove the left front wheel housing liner completely, refer to FRONT WHEEL HOUSING LINER, REMOVING AND INSTALLING .

-- Remove the bolts -arrows- and the left drive axle heat shield.

Fig 5: Identifying Left Drive Axle Heat Shield And Bolts

GWWA34-10397

Courtesy of AUDI OF AMERICA, LLC

-- Remove the left drive axle from the transmission flange shaft, refer to DRIVE AXLE, REMOVING AND INSTALLING .

Fig 6: Identifying Left Drive Axle And Transmission Flange Shaft

GWWA40-10384

Courtesy of AUDI OF AMERICA, LLC

-- Cut the cable tie and remove the heat shield boot -1-.

-- Disconnect the connector -3-.

-- Remove the bolt -2- and Knock Sensor 4 -G199-.

Fig 7: Identifying Heat Shield Boot, Knock Sensor 4 And Bolt

GWWA28-10067

Courtesy of AUDI OF AMERICA, LLC