Tesla Model 3 Owners & Service Manuals

Tesla Model 3: TXV Valve - Evaporator - Install

Tesla Model 3 2017-2024 Service Manual / Thermal Management / Refrigerant System / TXV Valve - Evaporator (Remove and Replace) / TXV Valve - Evaporator - Install

Install

TXV Valve - Evaporator- Install

  1. Install new o-rings (x2) onto the HVAC module.
  2. Install the TXV valve onto the HVAC module, and then install the bolts that attach the TXV valve to the HVAC module. Torque 7.2 Nm
  3. Install new o-rings (x2) onto the suction/liquid lines fitting.

TXV Valve - Evaporator- Install

  1. Install the suction/liquid lines fitting into the TXV valve, and then install the nut that attaches the suction/liquid lines fitting to the TXV valve. Torque 22 Nm
  2. Perform the A/C refrigerant recharge concurrently with the remainder of this procedure. See A/C Refrigerant (Recovery and Recharge).

TXV Valve - Evaporator- Install

  1. Connect the electrical harness to the TXV valve connector.

TXV Valve - Evaporator- Install

  1. Fasten the clip that attaches the suction/liquid lines to the electrical harness near the TXV.

TXV Valve - Evaporator- Install

  1. Install the positive harness onto the battery, and tighten the nut that attaches the positive harness to the battery. Torque 6 Nm
  2. Install the cover for the 12V positive terminal.
  3. Install the inner HVAC plenum duct. See Duct - HVAC Plenum - Inner (Remove and Replace).
  4. Connect 12V power. See 12V Power (Disconnect and Connect).

Note: Do not install the rear apron at this time.

  1. After the A/C refrigerant recharge has fully completed, verify the operation of the A/C system.
  2. Connect a charging cable to the vehicle.
  3. Use Toolbox to perform a Thermal System Performance Test.
  4. After successful completion of the test, disconnect the charging cable.
  5. Install the underhood storage unit. See Underhood Storage Unit (Remove and Replace).

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