2025-03-12

FLUID COUPLING - 55 DEGREE (Remove and Replace)

Correction code 4020020302 FRT 0.55 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.

  • 1135762-00-A Kit, Svc Plug, Cooling Hose, Model 3

Torque Specifications

Table 1. Torque Specifications:FLUID COUPLING - 55 DEGREE (Remove and Replace)
Description Torque Value Recommended Tools Reuse/Replace Notes
Bolt that attaches the 55 degree fluid coupling to the rear drive unit
6 Nm (4.4 lbs-ft)
  • Torque Wrench 1/4in Dr. + Angle - 1076971-02-A
  • Torx T30 socket
  • Cordless Ratchet/Impact Driver
 Replace 1496485-00-B

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 mid aero shield. See Aero Shield - Middle (Remove and Replace).
  6. Position coolant drain container under LH rear of vehicle.
  7. Disconnect RDU inverter inlet hose from fluid coupling and allow coolant to drain from inverter.
  8. Remove 55 degree fluid coupling from rear drive unit and plug hole.
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • Torque Wrench 1/4in Dr. + Angle - 1076971-02-A
    • Torx T30 socket
    • Cordless Ratchet/Impact Driver

Install

  1. Remove plug from rear drive unit and install 55 degree fluid coupling.
    6 Nm (4.4 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • Torque Wrench 1/4in Dr. + Angle - 1076971-02-A
    • Torx T30 socket
    • Cordless Ratchet/Impact Driver
    Informational PurposesAn informational icon, calling your attention
    Note
    Check O-ring and replace it if necessary.
  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. Remove coolant drain container from underneath vehicle.
  4. Install the mid aero shield. See Aero Shield - Middle (Remove and Replace).
  5. Perform the cooling system (partial refill and bleed) procedure. See Cooling System (Partial Refill and Bleed) (Modify).
  6. Connect the LV battery. See LV Power (Disconnect and Connect).
  7. Unlock the gateway. See Gateway (Unlock).
  8. Select Stop Thermal Fill/Drain > Run, and allow the routine to complete.
  9. 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.
  10. Install the HEPA filter assembly. See SERVICE KIT - HEPA AND CARBON FILTERS (Remove and Replace).
  11. Remove the vehicle from the 2 post lift. See Raise Vehicle - 2 Stands.