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).
READ NEXT:
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:
SPECIAL TOOLS
Tool, Oil Pump Screen Removal, Model 3 (1140378-00-A)
Remove
Remove the oil pump. See
Oil Pump - Rear Drive Unit (Remove and Replace).
Use the special tool to remove the oil screen from the rear drive unit.
Install
Installation procedure is the reverse of removal
Remove
Remove the LH B-pillar applique. See
Applique - B-Pillar - LH (Remove and Replace).
Release the clips (x3) that attach the rear LH primary body seal to the
mid B-pillar, the upper B-pillar, and the mid C-pillar.
Pull on the seal to remove it from the body.
Install
Loosely