2025-03-12

Hoses - Tube (PT) - RDU Inverter Inlet - 3DU (Remove and Replace)

Correction code 1830021902 FRT 0.72 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.

  • 1080568-00-A Fluid Catcher
  • 1135762-00-A Kit, Svc Plug, Cooling Hose, Model 3
  • 1065131-00-A Battery Coolant Drain Kit

Remove

  1. Open LH front door, and Lower LH front window.
  2. Unlock the gateway. See Gateway (Unlock).
  3. On the touchscreen, tap the Service Mode "wrench" (at the bottom of the touchscreen UI), and then tap Thermal > Coolant System > Start Thermal Fill/Drain > Run, and allow the routine to complete.
  4. Disconnect the LV battery. See LV Power (Disconnect and Connect).
  5. Remove the HV battery rear skid plate. See High Voltage Battery Assembly - Skid Plate - Rear (Remove and Replace).
  6. Position coolant drain container under LH rear of vehicle.
  7. Disconnect RDU inverter inlet hose from rear of HV battery and plug both ends.
    Informational PurposesAn informational icon, calling your attention
    Note
    If the coolant loss is greater then 1L, vacuum fill will be required. See Cooling System - Vacuum Refill.
  8. Release RDU inverter inlet tube from RDU HV cable harness.
  9. Disconnect RDU inverter inlet hose from fluid coupling and allow coolant to drain from inverter.
  10. Remove RDU inverter inlet hose from between subframe and rear drive unit.
    Informational PurposesAn informational icon, calling your attention
    Note
    Push HV harness toward RDU and gently rotate the inverter inlet hose.

Install

  1. Position RDU inverter inlet hose for installation between subframe and rear drive unit.
    Informational PurposesAn informational icon, calling your attention
    Note
    Push HV harness toward RDU and gently rotate the inverter inlet hose.
  2. Remove plug and connect inverter inlet hose to rear drive unit.
    Informational PurposesAn informational icon, calling your attention
    Note
    Perform push-pull-push test to make sure hose is fully seated.
  3. Secure RDU inverter inlet hose onto RDU HV cable harness.
  4. Remove plugs and connect RDU inverter inlet hose to rear of HV battery.
  5. Remove coolant drain container from underneath vehicle.
  6. Install the HV battery rear skid plate. See High Voltage Battery Assembly - Skid Plate - Rear (Remove and Replace).
  7. Perform the cooling system (partial refill and bleed) procedure. See Cooling System (Partial Refill And Bleed) (Modify).
  8. Connect the LV battery. See LV Power (Disconnect and Connect).
  9. Unlock the gateway. See Gateway (Unlock).
  10. Select Stop Thermal Fill/Drain > Run, and allow the routine to complete.
  11. Select Coolant Purge Start > Run, and allow the routine to complete.
    Informational PurposesAn informational icon, calling your attention
    Note
    Make sure vehicle is not in Drive, shifting the vehicle into Drive will stop this routine. The test will last approximately 10 mins. The test will vary speeds from 3500-6500 RPM (idle speed = ~1500 RPM) and actuate the valve between series and parallel. If speed hovers at 7000 RPM, it indicates the pump is air locked, perform the vacuum fill again. Continue to add coolant and purge until the coolant level reaches between the NOM and MAX Lines on the bottle.
  12. Install the HEPA filter assembly. See Service Kit - Hepa And Carbon Filters (Remove and Replace).
  13. Remove the vehicle from the 2 post lift. See Raise Vehicle - 2 Stands.