Correction code 18401802 0.96 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.

1. Log into Tesla Garage
2. Enter vehicle VIN and select "Search"
3. Check Firmware version
   Note

   Firmware package installed must be 2021.36 or above for vehicle configuration update and Toolbox routine
4. Navigate to "CFG" tab on "Vitals" page
5. Check the coolant pump GTW configuration, and make sure the configuration is set to DUAL_MIX.
   CAUTION

   The Coolant Pump Identification will depend on this new configuration.

   Note

   If the configuration is set to DUAL or DUAL_SAN_P4, change the configuration to DUAL_MIX. If the gateway configuration is already set to DUAL_MIX, no further configuration is required.
6. Open LH front door
7. Lower LH front window
8. Connect to vehicle using Toolbox 3.0
9. Select "Dashboards" tab, and select "Infotainment Dashboard"
10. Select "Vehicle Configuration"
    Note

    Configuration values should load automatically, if not select "Read Config" and "Run" to load
11. Select "Read Config" and select "Run" to pull current vehicle configuration, Verify configuration change was performed
    Note

    Read config and verify configuration change was successful, Refresh page if required, Select ‘X’ at top right of window to close once complete
12. Scroll down to "coolantPumpType" and change to "Two coolant pumps installed, mixed pole pair batches"
13. Select "Apply Changes" and select "Run" to save updated configuration
    Note

    Center display will reboot, Toolbox connection will be lost, Select ‘X’ at top right of window to close once complete
14. Select ‘Actions/Autodiag’ and search for ‘Thermal’
15. Select "Start Thermal Fluid Fill/Drain (Coolant only)", click Run and allow routine to complete
    Note

    Select ‘X’ at top right of window to close once complete, Verify vehicle is in Series via Garage > Vitals > Thermal tab > Coolant loops, Thermal Fluid Fill/Drain routine has a 5 hour limit, After 5 hours routine must be performed again
16. Vehicle preparation
    Note

    Ensure vehicle is not charging before the repair
17. Open hood
18. Remove rear apron
    Note

    14x clips

    

    

19. Power off vehicle from center display
    Note

    Via Controls > Safety & Security > Vehicle Power > Power Off
20. Disconnect 12V negative terminal and first responders loop
    Note

    1x nut, 10mm, 6 Nm, 1x connector, Ensure vehicle is in park, climate control system is off, and vehicle is not charging before disconnecting 12V, Negative terminal should be disconnected before FRL, Allow 2 minutes for all electrical circuits to fully discharge

    

    

21. Remove fresh air intake duct
    Note

    1x bolt, 10mm, 4 Nm, 2x clips, 1x pin, Remove bolt, Gently pry pin out from thermal beam, then remove from bulkhead studs

    

    

    

    

22. Disconnect powertrain coolant pump connector
    Note

    1x locking electrical connector, Do not push down on Red tab, Pull red tab to disengage lock, Pull again to release connector

    

23. Disconnect battery coolant pump connector
    Note

    1x locking electrical connector, Do not push down on Red tab, Pull red tab to disengage lock, Pull again to release connector

    

24. Raise vehicle fully and lower lift onto locks
    Note

    Set vehicle to comfortable working height, Make sure there's an audible click of the locks on both sides before lowering, otherwise vehicle may tilt to the side
25. Remove outer fasteners from front aero shield
    Note

    7x bolts, 10mm, 5 Nm

    

26. Remove remaining nuts and remove front aero shield from vehicle
    Note

    2x nuts, 15mm, 5 Nm

    

27. Position coolant drain container underneath battery coolant pump
28. Remove bolts securing battery coolant pump to Supermanifold
    Note

    4x bolts, T20, 1.8 Nm

    

29. Remove battery coolant pump from Supermanifold
    Note

    Make sure both o-rings (inner purple, and outer black) come off with old pump

    

    

30. Position battery coolant pump to Supermanifold and install bolts hand tight
    Note

    4x bolts, T20, 1.8 Nm, Lubricate both o-rings with silicone o-ring lubricant, Refer to connector position and install coolant pump with connector tab facing up, Recommend installing upper right bolt with coolant pump for easier installation, Make sure the coolant pump is fully seated

    

    

    

31. Remove coolant drain container from underneath vehicle
32. Position the front aero shield to vehicle and install nuts
    Note

    2x nuts, 15mm, 5 Nm

    

33. Apply Loctite 222 onto front aero shield bolts and install outer fasteners to front aero shield
    Note

    7x bolts, 10mm, 5 Nm

    

34. Lower vehicle until tires are touching the ground
    Note

    Raise lift off locks, then hold lock release lever to keep locks free while vehicle is lowered
35. Torque bolts securing battery coolant pump to supermanifold
    Note

    4x bolts, T20, 1.8 Nm

    

36. Connect battery coolant pump connector
    Note

    1x locking electrical connector, Engage locking tab

    

37. Connect powertrain coolant pump connector
    Note

    1x locking electrical connector, Engage locking tab

    

38. Remove coolant bottle cap

    

39. Place empty coolant container into front storage area

    

40. Fill container with at least 15L of coolant

    

41. Place filled coolant container into front storage area

    

42. Setup vacuum refill tool
    Note

    Verify all valves on refill tool are in the closed position, See image for clarity

    

    

43. Install vacuum refill cap onto coolant bottle assembly

    

44. Setup vacuum refill tool
    Note

    Verify all valves on refill tool are in the closed position, See image for clarity

    

    

45. Install vacuum refill hose into refill cap on coolant bottle
    Note

    Perform push-pull-push test to verify hose is fully installed

    

46. Position overflow hose into empty container

    

47. Connect shop air supply to coolant refill tool
    Note

    If not already done, Verify refill valve is set to off

    

48. Open air inlet valve to draw a vacuum, Once gauge stabilizes, Fully close valve
    Note

    Gauge stabilizes roughly (60-70 cmHg), Vacuum should not drop after the valves are closed

    

    

49. Slowly open the refill valve to allow coolant to be drawn into the system
    Note

    Make sure hose end of refill hose is fully submerged during entire process

    

50. Once the gauge reads zero, close the refill valve

    

    

51. Once the gauge reads zero, close the refill valve

    

    

52. Once the gauge reads zero, close the refill valve

    

    

53. Once the gauge reads zero, close the refill valve

    

    

54. Disconnect shop air supply from coolant refill tool

    

55. Remove coolant refill hose from coolant container

    

56. Remove coolant overflow hose from coolant container

    

57. Remove vacuum refill hose from refill cap on coolant bottle

    

58. Remove coolant refill tool from vehicle

    

    

59. Remove both coolant containers from inside underhood area

    

60. Connect first responder loop and 12V negative terminal
    Note

    1x nut, 10mm, 6 Nm, 1x connector, Engage locking tab, Connect FRL first before connecting 12V to avoid damage to car computer

    

    

61. Perform the following routine using Service Mode or Toolbox (see 0005 - Service Modes): PROC_VCFRONT_X_STOP-THERMAL-FILL-DRAINSearch for routine in ToolboxStop Thermal Fluid Fill/DrainDrive Inverter ➜ Front Drive Inverter Replacement ➜ Stop Fluid Fill/DrainDrive Inverter ➜ Rear Drive Inverter Replacement ➜ Stop Fluid Fill/DrainDrive Inverter ➜ Rear Left Drive Inverter Replacement ➜ Stop Fluid Fill/DrainDrive Inverter ➜ Rear Right Drive Inverter Replacement ➜ Stop Fluid Fill/DrainDrive Unit ➜ Front Drive Unit Replacement ➜ Stop Coolant Fill/DrainDrive Unit ➜ Rear Drive Unit Replacement ➜ Stop Coolant Fill/DrainThermal ➜ Actions ➜ Stop Thermal Fill/DrainThermal ➜ Coolant System ➜ Stop Coolant Fill/DrainThermal ➜ Refrigerant System ➜ Stop Refrigerant Fill/Drain
    Note

    Select ‘X’ at top right of window to close once complete
62. Perform the following routine using Service Mode or Toolbox (see 0005 - Service Modes): TEST_VCFRONT_X_THERMAL-COOLANT-AIR-PURGESearch for routine in ToolboxCoolant Air PurgeDrive Inverter ➜ Front Drive Inverter Replacement ➜ Coolant Air PurgeDrive Inverter ➜ Rear Drive Inverter Replacement ➜ Coolant Air PurgeDrive Inverter ➜ Rear Left Drive Inverter Replacement ➜ Coolant Air PurgeDrive Inverter ➜ Rear Right Drive Inverter Replacement ➜ Coolant Air PurgeDrive Unit ➜ Front Drive Unit Replacement ➜ Coolant Air PurgeDrive Unit ➜ Rear Drive Unit Replacement ➜ Coolant Air PurgeThermal ➜ Actions ➜ Coolant Purge Stop or Coolant Purge StartThermal ➜ Coolant System ➜ Coolant Purge Start
    Note

    Make sure vehicle is not in drive state, Plan is still running despite the stop message, Coolant pumps will be audible, Test lasts approximately 10 mins, Speeds can be monitored in garage under PT Thermal tab, Idle speed = ~1500 RPM, Test will vary speeds from 3500-6500 RPM and actuate valve between SERIES and PARALLEL, Putting vehicle into drive state will stop this routine, If speeds hover at 7000 RPM, that means the pumps are air locked, perform vacuum fill again, Continue to add coolant and purge until the coolant level reaches between the NOM and MAX Lines on the bottle, Select ‘X’ at top right of window to close once complete
63. Inspect coolant level and top off as necessary
    Note

    Ensure that the fluid level is at the Max line

    

64. Install coolant bottle cap

    

65. Perform the following routine using Service Mode or Toolbox (see 0005 - Service Modes): TEST-SELF_VCFRONT_X_COOLANT-PUMPS-IDENTIFICATIONSearch for routine in ToolboxCoolant Pumps IdentificationThermal ➜ Actions ➜ Run Coolant Pumps IdentificationThermal ➜ Coolant System ➜ Pump Identification
    Note

    Select ‘X’ at top right of window to close once complete, Ensure VCFRONT_a490_coolantPumpsNotIdentified has cleared
66. Perform the following routine using Service Mode or Toolbox (see 0005 - Service Modes): TEST-SELF_VCFRONT_X_THERMAL-PERFORMANCESearch for routine in ToolboxThermal System Performance TestDrive Inverter ➜ Front Drive Inverter Replacement ➜ Thermal System TestDrive Inverter ➜ Rear Drive Inverter Replacement ➜ Thermal System TestDrive Inverter ➜ Rear Left Drive Inverter Replacement ➜ Thermal System TestDrive Inverter ➜ Rear Right Drive Inverter Replacement ➜ Thermal System TestDrive Unit ➜ Front Drive Unit Replacement ➜ Thermal System TestDrive Unit ➜ Rear Drive Unit Replacement ➜ Thermal System TestThermal ➜ Actions ➜ Test Thermal Performance
    Note

    Select ‘X’ at top right of window to close once complete.
67. Install fresh air intake duct
    Note

    1x bolt, 10mm bolt, 4 Nm, 2x clips, 1x pin, Set clips on bulkhead studs, Secure to thermal bar

    

    

    

    

68. Install rear apron
    Note

    14x clips, Hold rear wall of frunk to keep from flexing while engaging front clips

    

    

69. Close hood
70. Remove vehicle from lift
    Note

    Lower rack arms fully and remove from under vehicle if necessary, Remove air suspension from "Jack Mode" if equipped