Tesla MX – Changing the 12 Volt Battery

May 27, 2020
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Battery – Auxiliary – 12V (Remove and Replace)

FRT No: 17011202

Removal

  1. Disconnect 12V power (refer to procedure).
  2. Release the red plastic cover from the 12V positive connection.
  3. Disconnect the 12V battery positive connection (torque 10 Nm).
  4. Release the edge clip and the barrel clip that secure the 12V harnesses from the top of the battery cage.

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  5. Release the edge clip that secures the coolant hose to the bottom of the battery cage.

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  6. Release the battery vent tube by gently pulling it way from the 12V battery.
    Note: The following image shows the 12V battery ground connection still connected.

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  7. Remove the lower bolts (x2) that secure the battery cage to the plastic support beam (torque 6 Nm).
    Note: Components have been removed in this graphic to aid clarity.

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  8. Remove the upper bolts (x2) that secure the battery cage to the crossmember (torque 15 Nm).
    Note: Components have been removed in this graphic to aid clarity.

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  9. Remove the battery and battery cage assembly from the vehicle and set it on a flat surface.
  10. Remove the nut that secures the battery hold down bracket to the battery cage (torque 4 Nm). Remove the battery hold down bracket.

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  11. Lift the 12V battery straight up to remove it from the battery cage.

Installation

Installation procedure is the reverse of removal.

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