2025-03-12

Rear Drive Unit Inverter To Oil Cooler (Remove and Replace)

Correction code 1830021102 FRT 1.86 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. Release 4DU inverter to oil cooler hose from in between LH motor mount See LHD Mount - 4DU (Remove and Install).
  2. Release clips securing 4DU inverter to oil cooler hose.
  3. Release inverter to oil cooler hose from heat exchanger and allow hose end to drain.
    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.
  4. Remove rear drive unit ground cable clip from subframe.
  5. Route inverter to oil cooler hose out and remove from vehicle.

Install

  1. Position inverter to oil cooler hose for installation.
  2. Secure rear drive unit ground strap clip onto subframe.
  3. Secure clips for the 4DU inverter to oil cooler hose.
  4. Remove plugs and secure inverter to cooler hose to inverter.
    Informational PurposesAn informational icon, calling your attention
    Note
    Re-secure clip if it detached from hose, Engage hose and verify the hose is fully and properly secured, Perform push-pull-push test.
  5. Install bolts securing LH mount assembly to the vehicle. See LHD Mount - 4DU (Remove and Install).