Tesla Model 3 Owners & Service Manuals

Tesla Model 3: Beam - 12V Battery (Dual Motor) (Remove and Replace)

Tesla Model 3 2017-2025 Service Manual / Electrical / 12V Battery and Fuses / Beam - 12V Battery (Dual Motor) (Remove and Replace)

Beam - 12V Battery (Dual Motor) (Remove and Replace)

Remove

  1. Remove the 2nd row lower seat cushion. See Seat Cushion - Lower - 2nd Row (Remove and Replace).
  2. Remove the rear underhood apron. See Underhood Apron - Rear (Remove and Replace).
  3. Remove the cabin intake duct. See Duct - Cabin Intake (Remove and Replace).
  4. Remove the underhood storage unit. See Underhood Storage Unit (Remove and Replace).
  5. Remove the LH and RH wiper arms. See Wiper Arms (Remove and Replace).
  6. Remove the LH and RH shock tower covers. See Cover - Shock Tower - LH (Remove and Replace).
  7. Remove the cowl screen panel. See Panel - Cowl Screen (Remove and Replace).
  8. Disconnect 12V power. See 12V Power (Disconnect and Connect).
  9. Remove the 12V auxiliary battery. See Battery - 12V (Remove and Replace).
  10. Remove the front body controller module. See Module - Body Controller - Front (Dual Motor) (Remove and Replace).

Beam - 12V Battery (Dual Motor) (Remove and Replace)

  1. Release the clips that attach the coolant hoses and electrical harnesses to the 12V battery beam.

Beam - 12V Battery (Dual Motor) (Remove and Replace)

  1. Remove the bolts that attach the 12V battery beam to the vehicle. Torque 9 Nm

Beam - 12V Battery (Dual Motor) (Remove and Replace)

  1. Remove the 12V battery bracket and 12V battery beam from the vehicle.

Note: Carefully slide the beam toward the RH side of the vehicle, and then lift the LH side of the beam to remove the assembly.

Beam - 12V Battery (Dual Motor) (Remove and Replace)

  1. Remove the bolts that attach the 12V battery beam to the 12V battery bracket, and then set the bracket aside. Torque 9 Nm

Install

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

  • Replace all nyloc nuts.
  • Replace all patchbolts.

    READ NEXT:

     Beam - 12V Battery (RWD) (Remove and Replace)

     Beam - 12V Battery (RWD) - Remove

    Remove Remove the 2nd row lower seat cushion. See Seat Cushion - Lower - 2nd Row (Remove and Replace). Remove the rear underhood apron. See Underhood Apron - Rear (Remove and Replace). Remove

     Beam - 12V Battery (RWD) - Install

    Install Install the 12V battery bracket beam on the vehicle. Caution: Keep the 12V battery ground terminal away to avoid catching between the beam and the bracket. Install the bolts that atta

    SEE MORE:

     Panel - Door Trim - Front - LH (Remove and Replace) - Remove

    Remove Open the front LH door, and fully lower the window. Remove the front LH door tweeter. See Tweeter - Front Door - LH (Remove and Replace). Remove the LH front door puddle light. See Puddle Light - Front Door - LH (Remove and Replace). Release the clips that attach the refle

     Harness - Charge Port to HV Battery (Three-Phase) - Install

    Install Put the new charge port harness into the vehicle and feed the harness through the LV electrical harness. Caution: Install the charge port harness carefully to prevent damage to the harness.

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