07/08/2024 01:48:38

Coolant Pump - HV Battery (RWD) (Remove and Replace)

Correction code 18308502 0.66 NOTE: Unless otherwise explicitly stated in the procedure, the above correction code and FRT reflect all of the work required to perform this procedure, including the linked procedures. Do not stack correction codes unless explicitly told to do so.NOTE: See Flat Rate Times to learn more about FRTs and how they are created. To provide feedback on FRT values, email LaborTimeFeedback@tesla.com. NOTE: See Personal Protection to make sure wearing proper PPE when performing the below procedure.

  • 2024-08-06: Changed instruction for lubrication of O-rings to use Silicone lubricant instead of using silaramic grease.
  • 2024-04-25: Updated the UI routines.
  • 2024-03-06: Added the coolant pump configuration routine using Toolbox 3.
  • 2023-11-16: Replaced illustrations with correct images for heat pump vehicles.

Torque Specifications

Table 1. Torque Specifications: Coolant Pump - HV Battery (RWD) (Remove and Replace)
Description Torque Value Recommended Tools Reuse/Replace Notes
Bolts that attach the coolant pump to the supermanifold
1.8 Nm (1.3 lbs-ft)
  • T20 socket
  • 2 in extension
 Reuse

Remove

  1. Raise and support the vehicle. See Raise Vehicle - 2 Post Lift.
  2. Remove the rear underhood apron. See Underhood Apron - Rear (Remove and Replace).
  3. Remove the washer filler neck, See Filler Neck - Reservoir - Windshield Washer (LHD) (Remove and Replace).
  4. Remove the HEPA filter assembly. See Assembly - Filter - HEPA (Remove and Replace).
  5. Remove the HEPA duct. See Duct - HEPA (Remove and Replace).
  6. Enable Service Mode. See Service Mode.
  7. Unlock the vehicle gateway. See Gateway (Unlock).
  8. On the touchscreen, touch Service Mode > Thermal > Coolant System > Coolant Fill/Drain and select Run, and allow the routine to complete.
  9. Disconnect 12V power. See 12V/LV Power (Disconnect and Connect).
  10. Remove the front aero shield panel. See Panel - Aero Shield - Front (Non-Structural Pack) (Remove and Replace).
  11. Release the connector lock, and then d isconnect the electrical harness from the HV battery coolant pump connector.
    Informational PurposesAn informational icon, calling your attention
    Note
    Pull the red tab to release the connector lock, and then pull the connector to disconnect the connector.
    Tip: If multiple pumps are being disconnected, apply masking tape to each electrical connector and label the tape with the pump locations.
  12. Position the coolant drain container under the battery coolant pump.
  13. Remove the bolts that attach the HV battery coolant pump to the supermanifold, and then remove the pump from the supermanifold.
    Informational PurposesAn informational icon, calling your attention
    Note
    Make sure the inner and outer O-rings are removed with the pump.
    Tip: Use of the following tool(s) is recommended:
    • T20 socket
    • 2 in extension

Install

  1. Remove and discard any o-rings or debris in the supermanifold where the coolant pump will install.
  2. Make sure that new o-rings are installed onto the new coolant pump.
  3. Lubricate the o-rings with Silicone lubricant.
  4. Position the outlet of the coolant pump in the up position, and insert the coolant pump into the supermanifold.
  5. Make sure that the coolant pump is fully seated in the supermanifold.
  6. Hand-tighten new screws to attach the coolant pump to the supermanifold.
  7. Tighten the coolant pump screws in a cross-pattern.
    1.8 Nm (1.3 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    Note
    Make sure the inner and outer O-rings are removed with the pump.
    Tip: Use of the following tool(s) is recommended:
    • T20 socket
    • 2 in extension
  8. Connect the electrical harness to the coolant pump connector, and then engage the connector locking tab.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    If multiple pumps were disconnected, make sure to reconnect the correct electrical connector for this pump location.
  9. Remove the coolant drain from under the vehicle.
  10. Install the front aero shield panel. See Panel - Aero Shield - Front (Non-Structural Pack) (Remove and Replace).
  11. Perform a cooling system vacuum refill. See Cooling System (Vacuum Refill).
  12. Connect 12V power. See 12V/LV Power (Disconnect and Connect).
  13. Unlock the vehicle gateway. See Gateway (Unlock).
  14. On the touchscreen, tap the Service Mode "wrench" (at the bottom of the touchscreen UI), and then tap Thermal > Stop Thermal Fill Drain, and allow the routine to complete.
  15. Tap Coolant System > Run Coolant Pumps Identification > Run, and close once the routine is passed.
  16. Tap Coolant System > Coolant Purge > Run, and close once the routine is passed.
  17. Inspect the coolant level, top off as necessary, and then install the coolant bottle cap.
    Informational PurposesAn informational icon, calling your attention
    Note
    Ensure that the coolant level is at the "Max" line.
  18. Install the HEPA duct. See Duct - HEPA (Remove and Replace).
  19. Install the HEPA filter assembly. See Assembly - Filter - HEPA (Remove and Replace).
  20. Install the washer filler neck, See Filler Neck - Reservoir - Windshield Washer (LHD) (Remove and Replace).
  21. Install the rear underhood apron. See Underhood Apron - Rear (Remove and Replace).
  22. Remove the vehicle from the lift.
  23. Exit Service Mode. See Service Mode.
  24. Raise the LH front window and close the LH front door.