Tesla Model S: Drive Unit - Rear - Small (Remove and Install)
Special tools required for this procedure:
Caution: Use the specified coolant only. In this manual, refer
to General Information > Capacities, Fluids, and
Lubricants > Fluids.
Supplier
|
Part Number
|
Description
|
Tesla |
1056361-00-A |
Oberg Tilt-Lift |
Tesla |
1046674-00-C |
COVER, HV, INV, 3.0-150 |
Tesla |
1057312-00-A |
Axle Extractor |
Note: New drive units are shipped with 1046674-00-C.
Removal
- Remove the rear subframe (refer to procedure).
Note: Before continuing, move the subframe fixture to the
gantry.
- Place a coolant catcher under the subframe fixture.
Note:
The 2 coolant hoses that are still attached to the
drive unit are removed as an assembly.
- Release the clip that secures the coolant hoses to the subframe.
- Release the clip that secures the low voltage harness to the
coolant hoses.
- At the front of the drive unit, release the bolt that secures
the coolant hose bracket (torque 5.5 Nm).
- Plug the holes for the HV cables.
Caution: Do not allow coolant to enter the openings
for the HV cables.
- Release the 2 coolant hoses from the front LH side of the drive
unit.
- Release the 2 coolant hoses from the RH side of the drive unit.
- On each side of the subframe, release the 2 grommets that secure
the wheel speed sensor harness.
- On each side of the subframe, release the bolt that secures the
upper link to the knuckle (torque 140 Nm).
- On each side of the subframe, release the bolt that secures the
toe link to the knuckle (torque 130 Nm).
- Use the axle extractor tool to release the driveshafts from the
transmission.
Caution: Do not let the driveshafts rest on the input
seal.
Note: When releasing the RH driveshaft, position
the tool at the bottom of the driveshaft.
- Remove and discard the cable tie that secures the NVH pad to the
drive unit.
- Remove the NVH pad from the LH side of the drive unit:
- Working from behind the drive unit, release the
hook-and-loop straps that secure the NVH pad.
- Working from in front of the drive unit, remove the clip
that secures the NVH pad to the LH side motor mount.
- Pull the NVH pad outboard to remove it.
- Remove the bolt that secures the front of the drive unit to the
subframe (torque 90 Nm).
- Remove the bolt that secures the rear of the drive unit to the
subframe (torque 90 Nm).
- Release the 3 bolts that secure the LH side motor mount to the
drive unit (torque 22 Nm).
Note: This causes the LH side of the drive unit to
drop slightly.
- Remove the bolt that secures the LH side motor mount to the
subframe (torque 90 Nm).
- Push the LH side motor mount outboard.
- Secure the tilt-lift extension to the crane.
Note: To secure the tilt-lift extension to the
drive unit use Tesla P/N 1016260-00-A or an equivalent M8x1.25x20mm
long, class 10.9, high strength bolt.
- Secure the tilt-lift extension to the LH side of the drive unit.
- Secure the tilt-lift extension to the RH side of the drive unit.
Caution: While lifting the drive unit assembly in the next
step, have an assistant brace a screwdriver or similar tool against
the subframe and hold the sway bar out of the way. Do not brace the
tool against the motor mount.
- Lift the drive unit out of the subframe.
Installation
Installation procedure is the reverse of removal, except for the
following:
Caution: Replace all nylon-insert locknuts.
Caution: Only fully tighten the suspension bushing bolts
when the vehicle is in ride height position.
Caution: During reinstallation, carefully inspect the
connector seals. If any are damaged, replace them.
Drive Unit - Rear - Small (Remove and Replace)
Removal
Remove the small drive unit (refer to procedure).
Installation
Installation procedure is the reverse of removal, except for the
following:
Perform a firmware update.
READ NEXT:
Removal
Remove drive unit assembly:
Large drive units: Refer to procedure
Small drive units: Refer to procedure
Using suitable lifting equipment, support th
Warning: To avoid personal injury, eye protection must
be worn when performing this operation.Warning: To avoid personal injury, safety-toe shoes and
cut-resistant gloves are recommended whe
SEE MORE:
Note: This procedure
applies to vehicles with the vacuum brake booster only. If the
vehicle has the electromechanical brake booster assembly, the
master cylinder is part of the brake booster assembly. Refer to
procedure 33031402
(refer to procedure).
Removal
When you enable Track Mode, the map displays a Lap
Timer. Follow the onscreen instructions to place a start/
finish pin on the map. Once the pins are placed, press
START to initiate the driving (lapping) session. When
you drive Model S through the start/finish location, the
Lap Timer automatical