Tesla Model 3: Breathers - HV Battery (Remove and Replace)
Remove
- Remove the mid aero shield panel. See
Panel - Aero Shield - Mid (Remove and Replace).
- 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.
- 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
Remove
Perform the vehicle electrical isolation procedure. See
Vehicle Electrical Isolation Procedure.
Remove the foam cover from the LH side of the penthouse.
Remove the LH rear sill panel trim.
SEE MORE:
This procedure assumes the cowl screen carrier bracket, headlight grommet,
and underhood storage unit clips on the fender assembly being replaced are
undamaged. Inspect these components and if necessary, replace with new parts.
Remove
Remove the rear underhood apron. See Underhood Apron - Rea
DRAFT
Warning:
This procedure was derived from pre-production computer models, and
might not reflect the real-world situation. Warnings and cautions might be
missing. Follow safety requirements and use extreme caution when working on or
near high voltage systems and components.
SPECIAL TOOLS
Pac