Tesla Model 3 Owners & Service Manuals

Tesla Model 3: Vent Assembly - HV Battery - LH (Remove and Replace)

Tesla Model 3 2017-2026 Service Manual / Battery System / HV Battery Enclosure / Vent Assembly - HV Battery - LH (Remove and Replace)

Vent Assembly - HV Battery - LH- Remove

Remove

  1. Use Toolbox to put the vehicle into Factory Mode.
  2. Invoke diagnostics on the touchscreen.
  3. Inspect the Notifications for either a BMS_a123 or a BMS_W123 alert.
  4. If:
  • Either alert is present - Contact Service Engineering. Do not perform this procedure.
  • Neither alert is present - Continue to the next step.
  1. Exit diagnostics and restart the touchscreen.
  2. Use Toolbox to exit Factory Mode.
  3. Disconnect 12V power. See 12V Power (Disconnect and Connect).
  4. Perform the vehicle electrical isolation procedure. See Vehicle Electrical Isolation Procedure.
  5. Remove the mid aero shield panel. See Panel - Aero Shield - Mid (Remove and Replace).

Vent Assembly - HV Battery - LH- Remove

  1. Release the fir tree clips that attach the coolant hoses to the LH shear plate.
  2. Put on personal protective equipment.

Warning: HV insulating gloves and leather glove protectors must be worn when exposed to the interior of the HV battery.

Vent Assembly - HV Battery - LH- Remove

  1. Remove the nuts (x5) that attach the LH vent assembly to the HV battery, and then remove the vent assembly from the battery.

Vent Assembly - HV Battery - LH- Install

Install

  1. Put on personal protective equipment.

Warning: HV insulating gloves and leather glove protectors must be worn when exposed to the interior of the HV battery.

Vent Assembly - HV Battery - LH- Install

  1. Install the LH vent assembly to the HV battery, and then install the nuts (x5) that attach the vent assembly to the battery. Torque 10 Nm
  2. Perform an HV battery air leak test. See HV Battery Air Leak Test.
  3. If the replacement vent assembly is without a breather valve, install one now. See Breathers - HV Battery (Remove and Replace).

Vent Assembly - HV Battery - LH- Install

  1. Fasten the fir tree clips that attach the coolant hoses to the LH shear plate.
  2. Install the mid aero shield panel. See Panel - Aero Shield - Mid (Remove and Replace).
  3. Connect 12V power. See 12V Power (Disconnect and Connect).

    READ NEXT:

     Vent Assembly - HV Battery - RH (Remove and Replace)

    Remove Use Toolbox to put the vehicle into Factory Mode. Invoke diagnostics on the touchscreen. Inspect the Notifications for either a BMS_a123 or a BMS_W123 alert. If: Either alert is present

     HV Battery Cooling System

     Coolant - HV Battery (Drain and Refill)

    SPECIAL TOOLS Drive Unit Pressure Test Fixture (1053600-00-B) Adapter, Coolant Reservoir Pressure Test (1130942-00-B) Kit, Coolant Leak Test Adapters, Model 3 (1132185-00-B) Kit, Coolant Drain &

    SEE MORE:

     Trim - Side - Trunk - RH (Remove and Replace)

    Remove Remove the RH 2nd row seat back. See Seat Back - 2nd Row - RH (Remove and Install). Remove the RH side trunk carpet clips (x2) from the body studs located under the 2nd row seat cushion. Raise the trunk carpet over the ISOFIX bars on the RH side. Remove the trunk sill tri

     Breather - Front Drive Unit (Remove and Replace)

    Remove Remove the front subframe assembly. See Subframe Assembly - Front (Dual Motor) (Remove and Install). Remove the front drive unit breather. Torque 5 Nm Install Installation procedure is the reverse of removal.

    © 2019-2026 Copyright www.tmodel3.com