Tesla Model 3: Inverter - Rear Drive Unit - Install
Install
- Secure the ESD strap to the inverter housing.
- Carefully peel the gap pad from the inverter
PCB.
- Use an IPA wipe to remove any residue and
prepare the gap pad location on the inverter PCB.
- Peel the backing off of the new gap pad,
position the pad into place, and press it onto the
inverter PCB.
- Inspect the condition of the gap pad on the
inverter PCB.
- Fully covers the discharge resistor array
and that no resistors are visible.
- Clean and free of debris.
- Evenly adhered to the inverter PCB.
- Install a new inverter gasket.
- Use an IPA wipe to clean the HV mating
surfaces of the motor and inverter 3-phase terminals.
- Carefully align the inverter to the 2 pins in
the rear drive unit, and then install the inverter to
the rear drive unit. Make sure that the 3-phase
terminals align during installation.
Caution:
Avoid damage to the printed circuit board of the
inverter.
- Hand-tighten the new bolts (x12) that attach
the inverter to the gearbox assembly.
- Torque the bolts in the sequence shown.
Torque 5 Nm +20 deg
- Install the LH rear drive unit mount to the
rear drive unit, and then hand-tighten the bolts (x3)
that attach the mount to the rear drive unit.
- Tighten the bolts in a two-step,
counter-clockwise pattern, starting with the upper-right
bolt.
Torque 35 Nm +55 deg
- Install the new bolts (x3) that attach the 3
phase cable to the inverter assembly.
- Tighten the bolts to this specification.
Torque 11.5 Nm
- Loosen the bolts 180 degrees.
- Tighten the bolts to this specification.
Torque 5 Nm +40 deg
- Apply a film of ATF-9 fluid to the walls of
the gear case bores, and then install the new 3-phase
access cover.
- Install the bolts (x2) that attach the 3-phase
access cover to the rear drive unit assembly.
Torque 7.5 Nm
- Perform an inverter air leak test. See
Inverter Air Leak Test.
- Apply a new 3-phase access label.
- Remove the ESD wrist strap.
- Install the rear drive unit. See Drive Unit -
Rear (Remove and Replace).
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SPECIAL TOOLS
Skt, 3/8in Dr, 10EP Torx Plus External
(1130479-00-A)
Lever
Install
Secure the ESD strap to the replacement inverter
housing.
SEE MORE:
Remove
Move the driver seat and front passenger seat fully forward.
Note: Notice the location of the driver seat and front passenger
seat prior to moving them forward to help restore the seats back into their
original position.
Release the clips that attach the center console lower rear
Remove
Remove the RH front vent. See
Vent - Front - RH (Remove and Replace).
Remove the screws that attach the RH vent actuator to the RH front vent,
and then remove the actuator from the vent.
Torque 1.3 Nm
Install
Installation procedure is the reverse of removal.