Tesla Model S Owners & Service Manuals

Tesla Model S: Reservoir Assembly - Coolant (Dual Motor) (Remove and Replace)

Tesla Model S (2012-2025) Service Manual / Thermal Management / Reservoir Assembly - Coolant (Dual Motor) (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. Disconnect 12V power (refer to procedure).
  2. Place a coolant catcher underneath the vehicle directly below the coolant reservoir.
  3. Remove the reservoir cap.
  4. Siphon the coolant from the reservoir into a container.
Note: The following images show the coolant reservoir without the coolant removed.
  1. Disconnect the coolant level sensor harness.

    Reservoir Assembly - Coolant (Dual Motor) (Remove and Replace)

  2. Remove the bolt that secures the coolant hose retaining ring to the battery support brace (torque 5 Nm).

    Reservoir Assembly - Coolant (Dual Motor) (Remove and Replace)

  3. Release the bolts (x4) that secure the coolant reservoir to the front crossmember (torque 6 Nm).

    Reservoir Assembly - Coolant (Dual Motor) (Remove and Replace)

  4. Clamp the coolant hoses (x2).
  5. Place absorbent material under the coolant hoses and reservoir.
  6. Release the locking rings (x2) that secure the coolant hoses to the coolant reservoir.
  7. Remove the reservoir from the vehicle.
  8. Clean up any spilled coolant.
Installation

Installation procedure is the reverse of removal, except for the following:

  • When all components have been reinstalled, refill and bleed the cooling system (refer to procedure).

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