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. | |

 
		