4 Way Coolant Valve - Series/Parallel (Remove and Replace)

FRT No: 18306502

Removal

  1. Remove the cooling fan module (refer to procedure).
  2. Remove the battery cage (refer to procedure).
  3. Remove the bolts (x4) that secure the 3-way and 4-way valves to the plastic support beam (torque 5 Nm).

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  4. Release the clips (x2) that secure the coolant hose to the plastic support beam.

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  5. Remove the bolts (x2) that secure the plastic support beam to the front frame rails (torque 6.5 Nm).

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  6. Remove the plastic support beam from the vehicle.
  7. Disconnect the electrical connector from the 4-way valve.

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  8. Place a container beneath the 4-way valve to catch spilled coolant.
  9. Clamp the following coolant hoses:
    • 4-way valve to Battery Pump 1
    • 4-way valve to coolant reservoir
    • HV battery to 4-way valve

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  10. Release the locking rings (x4) that secure the coolant hoses to the 4-way valve. Release the coolant hoses from the nipples on the 4-way valve.
    Tip: Release the locking ring that secures the coolant hose that goes to the 3-way valve first. This provides more mobility when releasing the remaining locking rings.
    Note: Components have been removed in this graphic to aid clarity.

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  11. Remove the 4-way valve from the vehicle.

Installation

Installation procedure is the reverse of removal, except for the following:

  1. Recharge the refrigerant.
  2. Refill and bleed the cooling system (refer to procedure).