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Home >> Land Rover >> 2016 >> LR4 HSE >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling - V6 S/C 3.0L Petrol -- LR4/L319 >> Engine Cooling - V6 S/C 3.0L Petrol >> Cooling System Draining And Vacuum Filling >> General Procedures >> Draining

General Procedures: Draining

  1. WARNING: Make sure to support the vehicle with axle stands.

    Raise and support the vehicle.

  2. WARNING:
    • Release the cooling system pressure by slowly turning the coolant expansion tank cap a quarter of a turn. Cover the expansion tank cap with a thick cloth to prevent the possibility of scalding. Failure to follow this instruction may result in personal injury.
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  4. CAUTION: Be prepared to collect escaping coolant.
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    FILLING 

  7. Lower the vehicle.
  8. CAUTION: Anti-freeze concentration must be maintained at 50%.
    1. Install the cooling system vacuum refill adaptor to the expansion tank.
    2. Install the vacuum filler gauge to the cooling system vacuum refill adaptor.
    3. Install the venturi tube assembly to the vacuum filler gauge.
  9. NOTE:
    • Make sure the coolant supply valve is in the closed position on the vacuum filler gauge assembly.
    • Connect a regulated compressed air supply to the venturi tube assembly.
  10. Position the evacuated air hose into a container.
  11. Open the air supply valve.
  12. NOTE: Make sure the coolant supply hose is positioned into a container of fifty percent mixture of Land Rover Premium Cooling System Fluid or equivalent, meeting Land Rover specification Halvoline XLC and fifty percent water. Make sure no air can enter the supply hose.

    Open the coolant supply valve for 2 seconds to prime the coolant supply hose.

  13. Apply air pressure progressively until the arrow on the vacuum filler gauge reaches the green segment.
  14. Disconnect the compressed air supply line.
  15. NOTE: Close the coolant supply valve when the coolant expansion tank MAX mark is reached or coolant movement has ceased.

    Open the coolant supply valve and allow the coolant to be drawn into the system.

  16. Remove the vacuum filler gauge and cooling system vacuum refill adaptor assembly.
  17. CAUTION: Correct installation of the coolant expansion tank cap can be obtained by tightening the cap until an audible click is heard.
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  18. Set the heater controls to maximum.
  19. CAUTION: Observe the engine temperature gauge. If the engine starts to over-heat switch off immediately and allow to cool. Failure to follow this instruction may cause damage to the vehicle

    Start the engine and idle until hot air is emitted at the face registers.

  20. Switch the heater off.
  21. Raise the engine speed to 2000 RPM for eight minutes.
  22. CAUTION: Switch off the engine and allow the coolant temperature to go cold.

    Switch the engine off.

  23. Visually check the engine and cooling system for signs of coolant leakage.
  24. WARNING: When releasing the cooling system pressure, cover the coolant expansion tank cap with a thick cloth.
    CAUTION:
    • Since injury such as scalding could be caused by escaping steam or coolant, make sure the vehicle cooling system is cool prior to carrying out this procedure.
    • Make sure the coolant level remains above the "COLD FILL RANGE" lower level mark.
    NOTE: When the cooling system is warm, the coolant will be approximately 10mm above the upper level mark on the expansion tank with the cap removed.

    Check and top-up the coolant if required.

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