Knock Sensor: Service and Repair

Removing And Installing Knock Sensor (Engine Removed) - GT3

Removing Knock Sensor, Cylinder Bank 1 - 3







1. Disconnect plug -lower arrow- of the knock sensor and set it aside.
2. Unscrew M8 hexagon-head bolt -upper arrow- of the knock sensor and remove the knock sensor.

Installing Knock Sensor, Cylinder Bank 1 - 3
1. Clean contact surface for the sensor on the engine block.

CAUTION: The precise tightening torque for the knock-sensor screw must be observed, otherwise the knock sensor might not function properly.

2. Put on the knock sensor, then screw in and tighten the M8 hexagon-head bolt -upper arrow-.
3. Insert plug -lower arrow- of the knock sensor.







Tightening torque for hexagon-head bolt 23 Nm (17 ftlb.)

Removing Knock Sensor, Cylinder Bank 4 - 6
1. Remove the oil container.
2. Pull off plug of the knock sensor -lower arrow-.







3. Unscrew M8 hexagon-head bolt -upper arrow- and remove the knock sensor.

Installing Knock Sensor, Cylinder Bank 4 -6
1. Clean contact surface for the sensor on the engine block.

CAUTION: The precise tightening torque for the knock-sensor screw must be observed, otherwise the knock sensor might not function properly.

2. Put on the knock sensor, then screw in and tighten the M8 hexagon-head bolt -upper arrow-.
3. Reconnect plug of the knock sensor -lower arrow-.







Tightening torque 23 Nm (17 ftlb.)

4. Install the oil container.