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Knock sensor, rear cylinder bank (516R), 4WD

Knock sensor, rear cylinder bank (516R), 4WD

To remove


1. Raise the car.

2. Remove Alternator, B284, 4WD (LHD) or Alternator, B284, 4WD, (RHD)

3. Remove Rear catalytic converter, B284, 4WD .

4. Unplug the oil level sensor (A) connector and remove the cable fixing (B).


5. Remove the bracket (C) between the front exhaust pipe and engine.

6. Remove the pipe holder bolt (A).


7. Guide the pipe down slightly and remove the heat shield bolts (B).


8. Move the heat shield to the left slightly.

9. Unplug the knock sensor connector (A).


10. Remove the knock sensor (B).


To fit


1. Fit the knock sensor (B) at the angle illustrated and tighten it to the correct torque.

Tightening torque 23 Nm (17 lbf ft)

2. Plug in the connector (A).

3. Fit the heat shield bolts (B).

Tightening torque to heat shield:

M6 9 Nm (6 lbf ft)

M10 38 Nm (28 lbf ft)


4. Fit the pipe holder bolt (A).

Tightening torque: 38 Nm (28 lbf ft)


5. Fit the bracket (C) to the engine and front exhaust pipe.

Tightening torque to oil sump: 23 Nm (17 lbf ft)

Tightening torque to exhaust pipe flange: 40 Nm (30 lbf ft)


6. Plug in the oil level sensor (A) connector and fit the cable fixing (B).

7. Fit Rear catalytic converter, B284, 4WD with a new gasket.

8. Fit Alternator, B284, 4WD (LHD) or Alternator, B284, 4WD (RHD)

9. Lower the car.