Tesla Model 3: Breathers - HV Battery (Remove and Replace)
Remove
- Remove the mid aero shield panel. See
Panel - Aero Shield - Mid (Remove and Replace).
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- Release the fir tree clips that attach the coolant hoses to the LH shear
plate.

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

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

- Remove and discard the HV battery breather from the RH HV battery vent
shroud assembly.
Install
- Use an IPA wipe to clean the holes where the breathers will install.

- 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.
- Apply sideways pressure on the HV battery breather at several locations
to verify that it is attach in the LH HV battery vent shroud.
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- Fasten the fir tree clips that attach the coolant hoses to the LH shear
plate.

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

- Fasten the fir tree clips that attach the coolant hoses to the RH shear
plate.
- Install the mid aero shield panel. See
Panel - Aero Shield - Mid (Remove and Replace).
READ NEXT:
Warning:
Only technicians who have been trained in High Voltage Awareness are
permitted to perform this procedure. Proper personal protective equipment (PPE)
and insulating HV gloves with a minimum
SPECIAL TOOLS
Asy, Service Cover, Penthouse, Model 3 (1127845-00-A)
Skt, 1/4in Dr, 5-Lobe Torx Plus External (1059330-00-B)
Wrench, Torque + Angle, 1/4" Dr (1076971-02-A)
Cap, Logic Conn, Inv, 3DU
SEE MORE:
Remove
Note: Although the LH side is described, the procedure is the same
for the RH side.
Move the front LH front seat fully rearward.
Remove the front LH floormat from the vehicle.
Release the clips and tabs that attach the center console side panel
carpet to the center console, and
Remove
Remove the LH B-pillar applique. See
Applique - B-Pillar - LH (Remove and Replace).
Release the clips (x3) that attach the front LH primary body seal to the
mid B-pillar, the upper B-pillar, and the mid A-pillar.
Pull on the seal to remove it from the body.
Install
Loos