2024-08-08

Vehicle Sanitation - Evaporator - Models with PTC Heater - Tunap 994 (EMEA)

Correction code 18106738 0.84 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 ServiceManualFeedback@tesla.com. NOTE: See Personal Protection to make sure wearing proper PPE when performing the below procedure. See Ergonomic Precautions for safe and healthy working practices.

  • 1769621-00-A FOAMING CLEANER, TUNAP 994, AC EVEAPORATOR
Warning IconA warning icon, calling your attention to a possibly risky situation
Warning
When not in use, store the cleaning product in a cabinet designed for flammable materials.
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CAUTION
Take care to protect all electrical components (connectors, harnesses, body controllers, etc.) from overspray.
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Note
Dispose of spent cleaners and containers in accordance with all local, regional, national and international regulations.

Evaporator cleaning using Tunap 994

Warning IconA warning icon, calling your attention to a possibly risky situation
Warning
Read the safety information provided with the evaporator cleaning product before beginning this procedure.
Warning IconA warning icon, calling your attention to a possibly risky situation
Warning
Wear safety glasses and nitrile chemical resistant gloves and work in a well-ventilated area when using the evaporator cleaning product.
  1. Turn off A/C, set the cabin air to HI temperature, maximum blower speed and outside air intake, and then let the blower run for 8 minutes.
  2. Remove the cabin filters. See Filter - Cabin (Remove and Replace).
  3. Disconnect 12V power. See 12V/LV Power (Disconnect and Connect).
  4. Disconnect the 12V electrical connector from the PTC heater.
  5. Release the clip that attaches the PTC heater electrical harness to the HVAC module.
  6. Remove the bolts that attach the LH side of the PTC heater to the HVAC module.
  7. Release the clips that attach the PTC heater electrical harness to the HVAC module.
  8. Remove the nut that attaches the instrument panel harness ground strap to the PTC heater.
  9. Remove the bolts that attach the RH side of the PTC heater to the HVAC module, and then lower the PTC heater from the HVAC module.
  10. Remove the bolts that attach the service panel to the standoffs on the HVAC module, and then remove the service panel.
  11. Carefully slide the PTC heater out of the HVAC module and put it aside.
  12. Place absorbent material underneath the HVAC module.
  13. Pour 1 liter of Tunap 994 hygienic cleaner into the tank of the pressure cup spray gun, and then connect shop air to the spray gun.
  14. Insert the probe in the HVAC filter housing, and then spray all of the cleaning solution on the evaporator.
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    Note
    The spray holes in the probe should face to the front of the vehicle, towards the evaporator.
    Informational PurposesAn informational icon, calling your attention
    Note
    Be sure to coat the entire evaporator with the cleaning solution.
  15. Let the cleaning solution sit on the evaporator for 30 minutes. Continue to the next steps while the cleaning solution sits on the evaporator.
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    Note
    Regularly check under the vehicle and adjust the coolant drain container/absorbent material as necessary.
  16. Install the PTC heater into the HVAC module.
  17. Install the bolts that attach the RH side of the PTC heater to the HVAC module (torque 2.9 Nm).
  18. Position the IP harness ground strap onto the PTC heater stud, and then install the nut that attaches the ground strap to the PTC heater (torque 5 Nm).
  19. Install the bolts that attach the service panel to the standoffs on the HVAC module (torque 1.2 Nm).
  20. Install the clips that attach the PTC heater electrical harness to the HVAC module.
  21. Install the cabin filters and fit related components. See Filter - Cabin (Remove and Replace).
  22. Install the bolts that attach the LH side of the PTC heater to the HVAC module (torque 2.9 Nm).
  23. Install the PTC heater electrical harness onto the U-clip.
  24. Connect the 12V electrical connector to the PTC heater.
  25. Connect 12V power. See 12V/LV Power (Disconnect and Connect)
  26. Once the cleaning solution has sat long enough, install new cabin filters. See Filter - Cabin (Remove and Replace).
  27. Turn on A/C, set the cabin air to LO temperature, maximum blower speed and outside air intake.
  28. The cleaning foam will exit through the HVAC drain. Continue to the next step once clean water is observed exiting the HVAC drain.
  29. Remove the coolant drain container/absorbent material from under the vehicle.