Tesla Model 3 Owners & Service Manuals

Tesla Model 3: Breathers - HV Battery (Remove and Replace)

Tesla Model 3 2017-2025 Service Manual / Battery System / HV Battery Enclosure / Breathers - HV Battery (Remove and Replace)

Remove

  1. Remove the mid aero shield panel. See Panel - Aero Shield - Mid (Remove and Replace).

Breathers - HV Battery (Remove and Replace)

  1. Release the fir tree clips that attach the coolant hoses to the LH shear plate.

Breathers - HV Battery (Remove and Replace)

  1. Remove and discard the HV battery breather from the LH HV battery vent shroud assembly.

Breathers - HV Battery (Remove and Replace)

  1. Release the fir tree clips that attach the coolant hoses to the RH shear plate.

Breathers - HV Battery (Remove and Replace)

  1. Remove and discard the HV battery breather from the RH HV battery vent shroud assembly.

Install

  1. Use an IPA wipe to clean the holes where the breathers will install.

Breathers - HV Battery (Remove and Replace)

  1. Install a new HV battery breather into the LH HV battery vent shroud assembly

Note: Press at the center of the breather, and then press at 3 points forming a triangle pattern on the breather, to make sure that the HV battery breather is fully seated.

  1. Apply sideways pressure on the HV battery breather at several locations to verify that it is attach in the LH HV battery vent shroud.

Breathers - HV Battery (Remove and Replace)

  1. Fasten the fir tree clips that attach the coolant hoses to the LH shear plate.

Breathers - HV Battery (Remove and Replace)

  1. Install a new HV battery breather into the RH HV battery vent shroud assembly

Note: Press at the center of the breather, and then press at 3 points forming a triangle pattern on the breather, to make sure that the HV battery breather is fully seated.

  1. Apply sideways pressure on the HV battery breather at several locations to verify that it is attach in the RH HV battery vent shroud.

Breathers - HV Battery (Remove and Replace)

  1. Fasten the fir tree clips that attach the coolant hoses to the RH shear plate.
  2. Install the mid aero shield panel. See Panel - Aero Shield - Mid (Remove and Replace).

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