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Active Stabilization System Bleeding

WARNING: This page is about a different car, the 2012 Land Rover Range Rover Sport and 2011 Land Rover Range Rover Sport. However, it is still accessible from the selected car via links, so may be relevant.
SPECIAL TOOLS

Tool Illustration Tool Name Tool Number
GJ0015228
 Dynamic Response Bleed Bottle 204-591-01
GJ0015229
 Dynamic Response Control Box 204-591-02
CAUTION: Dynamic Response system components are manufactured to very precise tolerances. It is therefore essential that absolute cleanliness is observed when working with these components. Always install blanking plugs to any open orifices or lines. Failure to follow this instruction may result in foreign matter ingress to the dynamic response system.
NOTE: This procedure should be carried out if the following components have been removed or replaced: front or rear stabilizer bar, front or rear valve block to actuator bar pipe assemblies, or the valve block. It is possible to bleed only the front or rear of the system if only a stabilizer bar or pipe assembly has been removed. If the valve block has been removed, the complete system must be bled.
  1. Check and top-up the dynamic response system fluid reservoir.
    • Top-up the fluid level to the mid-way mark on the reservoir.
    GJ0015230
  2. Install the special tool to the dynamic response reservoir.
    • Completely fill the reservoir with fluid.
    • Make sure the pressure regulator on the special tool is turned OFF.
    • Fill the special tool bottle approximately three-quarters full with fluid.
    • Connect the special tool to a suitable workshop air supply.
    GJ0015231
    3. WARNING: Do not work on or under a vehicle supported only by a jack. Always support the vehicle on safety stands.
  3. Raise and support the vehicle.
  4. Remove the RH rear wheel and tire.
  5. RH side rear: To improve access to RH rear actuator bleed screw, remove bracket from body frame securing fuel breather pipes.
    GJ0015232
  6. Disconnect the two direction control valve electrical connectors.
    GJ0015233
  7. Connect the special tool electrical connectors to the valve block.
    • Connect the special tool power supply leads to the vehicle battery.
    GJ0015234
  8. Remove the engine undershield. Refer to Engine Undershield .
  9. Connect the hose from special tool kit to the front stabilizer bar bleed screws.
    • Remove the bleed screw covers.
    GJ0015235
  10. Loosen the front actuator RH bleed screw by one-half of a turn.
  11. Using the special tool, open both actuator control valves.
    GJ0015236
    12. CAUTION: The Dynamic Response bleed tool fluid reservoir must remain full with new, clean fluid, at all times during bleeding.
    NOTE: It may be necessary to operate the switch several times to help pulse the air out of the actuator.
  12. Bleed the dynamic response system until a flow of clean, air-free fluid, is being pumped into the bleed jar.
    • Using the special tool pressure regulator, carefully increase the air pressure to approx. 5 - 10 PSI / 0.3 - 0.7 kPa, until air/fluid is being expelled from bleed screw.
    GJ0015237
  13. When a steady flow of clean air free fluid is running from the bleed point, tighten the bleed screw to 15 Nm (11 lb.ft).
    • Release the switch on the special tool to switch off the actuator control valves.
  14. Loosen the front actuator LH bleed screw by one-half of a turn.
    GJ0015238
  15. Using the special tool, open both actuator control valves.
    GJ0015236
    16. NOTE: It may be necessary to operate the switch several times to help pulse the air out of the actuator.
  16. Bleed the dynamic response system until a flow of clean, air-free fluid, is being pumped into the bleed jar.
  17. When a steady flow of clean air free fluid is running from the bleed point, tighten the bleed screw to 15 Nm (11 lb.ft).
    • Release the switch on the special tool to switch off the actuator control valves.
  18. Repeat the front stabilizer bar bleed procedure, from steps 9 to 17, a further two times, to make sure all air is removed from the actuator.
  19. Disconnect the special tool hose from the front stabilizer bar bleed screws.
    • Install the bleed screw covers.
    • Discard the fluid from the bleed jar.
  20. Install the engine undershield. Refer to Engine Undershield .
  21. Check and top-up the special tool fluid reservoir.
  22. Connect the hose from the special tool kit to the rear stabilizer bar bleed screws.
    • Remove the bleed screw covers.
    GJ0015239
  23. Loosen the rear actuator RH bleed screw by one-half of a turn.
  24. Using the special tool, open both actuator control valves.
    GJ0015236
    25. CAUTION: The Dynamic Response bleed tool fluid reservoir must remain full with new, clean fluid, at all times during bleeding.
    NOTE: It may be necessary to operate the switch several times to help pulse the air out of the actuator.
  25. Bleed the dynamic response system until a flow of clean, air-free fluid, is being pumped into the bleed jar.
    GJ0015237
  26. When a steady flow of clean air free fluid is running from the bleed point, tighten the bleed screw to 15 Nm (11 lb.ft).
    • Release the switch on the special tool to switch off the actuator control valves.
    GJ0015240
  27. Loosen the rear actuator LH bleed screw by one-half of a turn.
    GJ0015240
  28. Using the special tool, open both actuator control valves.
    GJ0015236
    29. NOTE: It may be necessary to operate the switch several times to help pulse the air out of the actuator.
  29. Bleed the dynamic response system until a flow of clean, air-free fluid, is being pumped into the bleed jar.
  30. When a steady flow of clean air free fluid is running from the bleed point, tighten the bleed screw to 15 Nm (11 lb.ft).
    • Release the switch on the special tool to switch off the actuator control valves.
  31. Repeat the rear stabilizer bar bleed procedure, from steps 22 to 30, a further two times, to make sure all air is removed from the actautor.
  32. Disconnect the special tool hose from the rear stabilizer bar bleed screws.
    • Discard the fluid from the bleed jar.
    • Install the bleed screw covers.
  33. Disconnect the special tool from the valve block.
    • Connect the valve block electrical connectors.
    34. WARNING: The special tool is still pressurized when the source air pressure is removed. Release air pressure within special tool slowly before removing.
  34. Remove the special tool from the dynamic response system reservoir.
    • Remove the special tool.
    • Top-up the fluid level to the mid-way mark on the reservoir.
  35. Install bracket securing fuel breather pipes.
  36. Using IDS, check operation of the dynamic response system.
  37. If necessary, repeat the above procedure.
  38. Install the wheels and tires.
    • Tighten the wheel nuts to 140 Nm (103 lb.ft).
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