2026-08-09

软管 - 出口 - 后驱动电机 (4DU)（拆卸和更换）

校正代码 18302532 0.54 NOTE: Unless otherwise explicitly stated in the procedure, the correction code and its associated 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. NOTE: See 人员保护 to make sure wearing proper PPE when performing the below procedure. NOTE: See 人体工程学注意事项 for safe and healthy working practices.

  • 2023-08-14: Added a note about vacuum refill requirement when the coolant loss is greater than 1L.
警告
This procedure is a DRAFT. Although it has been validated, Warnings and Cautions might be missing. Follow safety requirements and use extreme caution when working on or near High Voltage systems and components.

拆卸

  1. Move the vehicle to a 2 post lift. See 举升车辆 - 双柱举升机.
  2. Enable Service Mode on the touchscreen. See 维护模式.
  3. Remove the rear underhood apron. See 前备箱挡板 - 后部（拆卸和更换）.
  4. Remove the cabin intake duct. See 槽 - 上部 - 驾驶室进气（拆卸和更换）.
  5. Disconnect LV power. See 12V/低压电源（断开和连接）.
  6. Remove the mid aero shield panel. See 面板 - 流线型护板 - 后部（拆卸和更换）.
  7. Position the coolant drain collector underneath the RH rear of the HV battery.
  8. Release the clips (x2) that attach the rear drive unit outlet hose to the rear skid plate.
  9. Release the clip that attaches the rear drive unit outlet hose to the RH shear plate.
  10. Release the clips (x2) that attach the RH rear wheel arch liner to the RH rocker panel, and then move the liner aside for access.
  11. Release the clip, disconnect the rear drive unit coolant outlet hose from the powertrain return hose, and then immediately plug both fittings.
  12. Release the clip that attaches the rear drive unit outlet hose to the rear drive unit heat exchanger.
  13. Release the clip, disconnect the rear drive unit outlet hose from the rear drive unit heat exchanger, and then immediately plug both fittings.
  14. Release the remaining clips (x2) that attach the rear drive unit outlet hose to the rear drive unit.
  15. Maneuver the rear drive unit outlet hose away from the rear drive unit, and then move the hose down and out between the rear subframe and the HV battery.

安装

  1. Maneuver the rear drive unit outlet hose up and in between the rear subframe and the HV battery, and then move the hose in and around the rear drive unit.
  2. Fasten the clips (x2) that attach the rear drive unit outlet hose to the rear drive unit.
  3. Remove the plugs from the fittings, immediately connect the rear drive unit outlet hose to the rear drive unit heat exchanger, fasten the clip, and then perform a Push-Pull-Push check of the fitting.
  4. Fasten the clip that attaches the rear drive unit outlet hose to the rear drive unit heat exchanger.
  5. Remove the plugs from the fittings, immediately connect the rear drive unit outlet hose to the powertrain return hose, fasten the clip, and then perform a Push-Pull-Push check of the fitting.
    注
    Coolant loss greater than 1L requires vacuum fill.
  6. Return the RH rear wheel arch liner to position, and then fasten the clips (x2) that attach the liner to the RH rocker panel.
  7. Fasten the clip that attaches the rear drive unit outlet hose to the RH shear plate.
  8. Fasten the clips (x2) that attach the rear drive unit outlet hose to the rear skid plate.
  9. Remove the coolant drain collector from under the vehicle.
  10. Install the mid aero shield panel. See 面板 - 流线型护板 - 后部（拆卸和更换）.
  11. Connect LV power. See 12V/低压电源（断开和连接）.
  12. On the touchscreen, touch the wrench icon > Diagnostics > Thermal.
    注
    Alternatively, touch Controls (vehicle icon) > Service Mode > Diagnostics > Thermal.
  13. Hold up on the turn signal stalk, and then press and hold the brake pedal at the same time for 10 seconds to authorize.
  14. On the touchscreen, touch START to the left of “Start Coolant Air Purge” and wait for the task to complete (10 minutes).
    注
    Alternatively, touch START to the left of “Start Coolant Air Purge”, touch RUN TASK, wait for the task to complete (10 minutes), then touch X in the upper left corner.
  15. Add coolant to the reservoir as necessary, and install the reservoir cap.
  16. Install the cabin intake duct. See 槽 - 上部 - 驾驶室进气（拆卸和更换）.
  17. Install the rear underhood apron. See 前备箱挡板 - 后部（拆卸和更换）.
  18. Disable Service Mode. See 维护模式.
  19. Remove the vehicle from the 2 post lift. See 举升车辆 - 双柱举升机.