Tesla Model S Owners & Service Manuals

Tesla Model S: Battery Chiller and TXV Assembly (Remove and Replace)

Tesla Model S (2012-2025) Service Manual / Thermal Management / Battery Chiller and TXV Assembly (Remove and Replace)

Warning: If the 12V power supply is disconnected, do not attempt to open any doors with door glass in closed position. Failure to follow this instruction could result in door glass shatter.

Note: Before disconnecting the 12V power supply, ensure that the driver's door window is fully open. Failure to follow this instruction could result in vehicle lockout.

Removal

  1. Remove the front aero shield (refer to procedure).
  2. Recover refrigerant from the vehicle (refer to procedure).
  3. Disconnect 12V power.
    • Rear wheel drive (RWD): Refer to procedure.
    • Dual Motor: Refer to procedure.
  4. Remove the nut that secures the air conditioning pipe to the TXV (torque 12 Nm). Release the pipe and collect the O-rings. Plug the pipe and TXV. Caution: Remove and discard O-rings.
  5. Disconnect the TXV electrical connector.
  6. Clamp the coolant hoses to minimize coolant loss.
  7. Position the tray and release the clips (x2) and coolant hoses from the TXV.
  8. Remove the bolts (x4) that secure the battery chiller and TXV assembly to the subframe and remove the assembly (torque 12 Nm).

    Battery Chiller and TXV Assembly (Remove and Replace)

Installation

Installation procedure is the reverse of removal.

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