System Flush and Operational Check
SYSTEM FLUSH AND OPERATIONAL CHECKNOTE:
It is not necessary to perform Step 1 below if the valve block or pump has been replaced.
1. Remove contaminated fluid from an actuator not diagnosed as faulty (without an internal leak) as follows:
^ Remove both wheels and tires.
^ Disconnect both the stabilizer bar links from the stabilizer bar.
^ Disconnect the dynamic response fluid pipes from the actuator.
NOTE:
Full movement in both directions of each arm must be performed to ensure fluid from both sides of the piston is removed.
CAUTION:
Fluid will be expelled when the actuator arms are moved.
^ Position a container to catch expelled fluid and move the actuator bar arms in opposite directions to displace the fluid.
2. Completely fill the reservoir with fluid.
3. Connect the special system fluid refill tool (204-591-01) to the dynamic response reservoir.
4. Make sure the pressure regulator on the special tool is turned 'OFF'.
5. Fill the special tool bottle approximately three-quarters full with fluid.
6. Connect the special tool to a suitable workshop air supply.
WARNING:
Whenever working under a vehicle the vehicle must be supported with safety stands.
7. Raise and support the vehicle.
8. Disconnect the two valve block actuator control valve electrical connectors. (Figure 11)
9. Connect the special tool (204-591-02) electrical connectors to the valve block. (Figure 12)
10. Connect the special tool (204-591-02) power supply leads to the vehicle battery.
NOTE:
The O-ring seals are to be reused unless damaged.
11. Flush the front set of pipes as follows:
^ Disconnect the dynamic response fluid pipes from the actuator.
^ Using the special tool, open both actuator control valves.
^ Flush fluid through the front pipes until approximately 0.5 liter has been displaced.
^ Connect the fluid lines to the actuator and tighten the two bolts to 22 Nm (16 lbf ft).
12. Flush the rear set of pipes as follows:
^ If the pipes have not been disconnected during step 1 of this section, disconnect the dynamic response fluid pipes from the actuator.
^ Flush fluid through the actuator until approximately 0.5 liter has been displaced.
^ Connect the fluid lines to the actuator and tighten the two bolts to 22 Nm (16 lbf ft).
NOTE:
It will not be necessary to replace any actuator if the pump has been replaced.
NOTE:
Global Technical Reference (GTR) lookup sequence is as follows:
GTR Home > NAS > LS Range Rover Sport> Service Information/ 2007 > Workshop Manuals > Bookmark "Chassis/204-06 Ride and Handling Optimization"
13. If an actuator has been shown to be faulty in the diagnostic steps, refer to GTR Workshop Manual, section 204-06 (60.60.50 or 64.60.50) to install a new actuator / stabilizer bar assembly.
14. Refer to GTR Workshop Manual section 204-06 (60.60.13) and bleed the dynamic response system.
15. Check and top-up the dynamic response system fluid reservoir to mid-way between the 'MAX' and 'MIN' marks.
16. Install the radiator access panel.
17. Tighten the bolts to 10 Nm (7.4 lbf ft).
18. Install the RH splash shield.
19. Refer to GTR Workshop Manual section 501-02 and install the engine undershield.
20. Using IDS, clear diagnostic trouble codes (DTC).
21. * Disconnect IDS and the Midtronics PSC-550 Vehicle Power Supply from the vehicle *.
NOTE:
The road test is only to be performed if the pump or an actuator has been replaced.
^ The route traveled should ensure that the dynamic response system is activated.
22. If the pump or an actuator has been replaced, perform a 10 mile road test on twisty roads to exercise the system.
23. When the test drive is complete use IDS to verify that no DTCs appear.
24. Refer to GTR Workshop Manual, section 204-06 (60.60.21) to install a new valve block filter.
25. Start the engine and allow to run for a short period.
26. Check and top-up the dynamic response system fluid reservoir to mid-way between the 'MAX' and 'MIN' marks.