Power steering unit, Z18XE
| Power steering unit, Z18XE | 
| Important | ||
| Scrupulous cleanliness must always be observed during all work with hydraulic components. | ||
| Important | ||
| Always use wing covers when working in the engine bay. | ||
| To remove | 
| 1. | Carry out
        
         Before removing a control module
        
        . | |
| 2. | Lift off the battery cover and disconnect the negative cable from the battery. | |
| 3. | Remove the hose and the mass air flow sensor.   | |
| 4. | Remove the connector for the power steering unit.   | |
| 5. | Remove the nuts from the rubber pads. | |
| 6. | Place a receptacle under the car. | |
| 7. | Unhook the coolant reservoir and move it to one side. Remove the brake fluid sensor connector.   | |
| 8. | Empty the power steering fluid reservoir using suitable oil draining equipment. | |
| 9. | Fold forward the power steering unit and remove the delivery pipe using
        
         89 96 803 Power steering pump hydraulic pipe spanner, 18 mm
        
        fitted to a 1/2" ratchet handle with reducer socket.   | |
| 10. | Remove the return hose from the power steering fluid reservoir. | |
| 11. | Lift up the power steering unit. | |
| 12. | Wipe away any spilled power steering fluid. | |
| To fit | 
| 1. | Lower the power steering unit onto the steering gear bracket.   | |
| 2. | Fit the return hose to the power steering fluid reservoir with a new hose clip. | |
| 3. | Fit a new sealing ring and connect and tighten the delivery pipe to the hydraulic unit. Tightening torque 27 Nm (20 lbf ft) | |
| 4. | Fit the nuts to the rubber pads. Tightening torque 7 Nm (5 lbf ft)   | |
| 5. | Plug in the connector to the power steering unit. RHD: The wiring harness should lie between the bracket and the delivery pipe. Check that the wiring harness does not touch the steering shaft joint. | |
| 6. | Fit the hose and the mass air flow sensor.   | |
| 7. | Fit the coolant reservoir and attach the brake fluid sensor connector.   | |
| 8. | Connect the battery and fit the battery cover. | |
| 9. | Fill with power steering fluid and bleed the system. 
 | ||||||||||
| 10. | Carry out
        
         After changing a control module. | |
| 11. | Check for leaks in the delivery and return lines. | |
| 12. | Carry out
        
         Procedures after disconnecting the battery
        
        . | |

 
		