22/04/2024 20:20:15

Heat Exchanger - Rear Drive Unit (3DU) (Remove and Replace)

Correction code 4001020032 FRT 2.04 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.

  • 1096075-00-A Tool, Hub Puller, Hydraulic
  • 1053589-00-A Slide Hammer
  • 1498673-00-A Cable Axle Removal Kit
  • 1135762-00-A Coolant Hose Plug Kit
  • 1459409-00-A Hub Jack Adapter
  • 1050448-00-B Vacuum Refill Tool
  • 1065131-00-A Battery Coolant Drain Kit
  • 1479505-00-A M3/Y Vacuum Fill Adapter

Torque Specifications

Table 1. Torque Specifications: Heat Exchanger - Rear Drive Unit (3DU) (Remove and Replace)
Description Torque Value Recommended Tools Reuse/Replace Notes
Bolts (x2) that attach the rear drive unit heat exchanger to the rear drive unit
5 Nm (3.7 lbs-ft) + 30 degrees
  • External Torx Plus EP10
  • ¼ in to 3/8 in adapter
  • 2 in extension
  • 4 in extension
  • Flex head ratchet/flex head torque wrench
 Reuse

Remove

  1. Verify there is no abnormal tire wear per Courtesy Inspection.
  2. Move the vehicle to a 2 post lift. See GUID-0ECF2493-88F6-48E9-ADBB-9AE1D52E217C.html.
  3. Open all doors and lower all windows.
  4. Remove the rear underhood apron. See Underhood Apron - Rear (Remove and Replace).
  5. On the touchscreen, tap Controls > Service > Towing to place the vehicle into tow mode.
  6. Place the vehicle in Service Mode by using the touchscreen. See Service Mode.
  7. Unlock the vehicle gateway. See Gateway Unlock.
  8. On the touchscreen, tap the Service Mode "wrench" (at the bottom of the touchscreen UI), and then tap Thermal > Coolant System > Coolant Fill/Drain, click Run, and allow the routine to complete.
  9. Disconnect LV power. See LV Battery - Li-lon (Disconnect and Connect).
  10. Remove the RH rear halfshaft. See Halfshaft - Rear Drive Unit - LH (Remove and Replace).
  11. Position the coolant drain collector underneath the RH rear of the HV battery.
  12. Release the clip that attaches the rear drive unit outlet hose to the rear drive unit heat exchanger.
  13. Release the coolant outlet hose from rear driver unit heat exchanger, and plug both ends.
    Informational PurposesAn informational icon, calling your attention
    Note
    Use a shop towel to clean any residue coolant if necessary. Coolant loss greater than 1L requires vacuum fill.
  14. Release the fir tree clip (x1) for upper coolant hose.
  15. Release the rear drive unit inverter coolant hose from heat exchanger.
    Informational PurposesAn informational icon, calling your attention
    Note
    Use a foldable funnel as required.
  16. Remove the bolts (x2) that attach the rear drive unit heat exchanger to the rear drive unit, and then remove the heat exchanger from the drive unit.
    Informational PurposesAn informational icon, calling your attention
    Note
    The number of fasteners may vary due to production changes.
    Tip: Use of the following tool(s) is recommended:
    • External Torx Plus EP10
    • ¼ in to 3/8 in adapter
    • 2 in extension
    • 4 in extension
    • Flex head ratchet/flex head torque wrench
  17. Remove the heat exchanger from the drive unit assembly.

Install

  1. Apply a light coat of KAF1 oil to the O-rings of the heat exchanger, and then wipe away any residue.
  2. Install the rear drive unit heat exchanger onto the rear drive unit, and then install the bolts (x2) that attach the heat exchanger to the drive unit.
    5 Nm (3.7 lbs-ft) + 30 degrees
    Tip: Use of the following tool(s) is recommended:
    • External Torx Plus EP10
    • ¼ in to 3/8 in adapter
    • 2 in extension
    • 4 in extension
    • Flex head ratchet/flex head torque wrench
  3. Secure the rear drive unit inverter coolant hose to heat exchanger.
    Informational PurposesAn informational icon, calling your attention
    Note
    Use a foldable funnel as required.
  4. Secure fir tree clip (x1) for upper coolant hose.
  5. Install coolant outlet hose to rear driver unit heat exchanger and plug both ends.
    Informational PurposesAn informational icon, calling your attention
    Note
    Use a shop towel to clean any residue coolant if necessary. Coolant loss greater than 1L requires vacuum fill.
  6. Secure the clip that attaches the rear drive unit outlet hose to the rear drive unit heat exchanger.
  7. Remove the coolant drain collector from under the vehicle.
  8. Install the RH rear halfshaft. See Halfshaft - Rear Drive Unit - LH (Remove and Replace).
  9. Refill the rear drive unit with gearbox fluid. See Gearbox Fluid - Rear Drive Unit (3DU) (Drain and Refill) (Remove and Replace).
  10. Perform a cooling system vacuum refill. See Cooling System - Vacuum Refill.
  11. Install the 2nd row seat cushion. See Seat Cushion - 2nd Row (Remove and Replace).
  12. Connect the LV battery power. See LV Battery - Li-lon (Disconnect and Connect).
  13. Hold the brake pedal and select the park icon on the touchscreen to disable the EPB service mode.
  14. Disable Service Mode. See Service Mode.
  15. Install the rear underhood apron. See Underhood Apron - Rear (Remove and Replace).
  16. Raise all windows and close all doors.
  17. Remove the vehicle from the 2 post lift.
  18. Review the wheel alignment requirements and add correction code as needed.