25/10/2023 04:16:06

Knuckle - Suspension - Rear - LH (Remove and Replace)

Correction code 31030102 1.44 NOTE: Unless otherwise explicitly stated in the procedure, the above correction code and FRT reflect all of the work required to perform this procedure, including the linked procedures. Do not stack correction codes unless explicitly told to do so. NOTE: See Flat Rate Times to learn more about FRTs and how they are created. To provide feedback on FRT values, email LaborTimeFeedback@tesla.com. NOTE: See Personal Protection to make sure proper PPE is worn when performing the below procedure.

2023-10-25: Updated EPB Service Mode reference.

Warning

This procedure is a DRAFT, although it has been validated. Warnings and Cautions might be missing. Follow safety requirements and use extreme caution when working on or near high voltage systems and components. Provide corrections and feedback to ServiceDevelopment@teslamotors.com.

Remove

Set air suspension vehicle ride height to "Low".

Note
Using center display > Suspension > ''Low''.
Prepare to raise vehicle.

Note
Set air suspension to "Jack Mode", Position lift arm pads on vehicle jack pads, DO NOT position the lift arm pads under the battery or side rails, as shown in red.
Use Toolbox to place the vehicle into EPB Service Mode. See Park Brake Caliper - Release - Toolbox.
Remove LH rear wheel center cap.

Note
1x cap.
Loosen the LH rear axle nut.

Note
1x nut, 32mm, 245 Nm.
Loosen LH rear wheel.

Note
5x nuts, 21mm, 175 Nm.
Raise vehicle partially and lower onto locks.

Note
Set vehicle to comfortable working height, Make sure there's an audible click of the locks on both sides before lowering, otherwise vehicle may tilt to the side.
Remove LH rear wheel.

Note
5x nuts, 21mm, 175 Nm.
Disconnect EPB harness connector to the LH caliper motor.

Note
1x connector, Disengage locking tab then release connector.
Release subframe harness from LH rear active dampener.

Note
2x connectors, 1x grommet.
Release harness clip from LH rear knuckle.

Note
1x clip.
Remove wheel speed sensor from LH rear knuckle .

Note
1x bolt, T30, 5 Nm.
Release connector to LH rear ANC sensor.

Note
1x connector, Disengage red locking tab and push down on black tab to release.
Remove LH rear ANC sensor.

Note
1x bolt, 10mm, 6 Nm.
Release chassis harness from LH lower control arm bracket.

Note
1x fir tree clip.
Remove bolts securing LH rear knuckle harness bracket and move aside.

Note
2x bolts, T30, 5 Nm, Move harness aside with bracket.
Release LH rear brake hose from LH rear lower aft link.

Note
1x bolt, 10mm, 6 Nm.
Release LH rear stabar link from rear knuckle assembly.

Note
1x nyloc nut, 15mm, 55 Nm, Break nut loose then counter-hold ball joint with 5mm hex, Discard after removal.
Remove LH rear brake caliper from LH rear knuckle and hang from body.

Note
2x bolts, E18, 125 Nm, Hang caliper from body if not fully removing, Route caliper hose so that it does not get caught on stabar assembly.
Remove axle nut and discard the washer securing LH rear drive axle to hub assembly.

Note
If washers are not present, procure a set so they can be installed later in this procedure.

Note
1x nut, 32mm, 245 Nm.
If installed, remove and discard the bolt that attaches the brake rotor to the hub.
Note
A new bolt will not be installed.
Tip: Use of the following tool(s) is recommended:
- 13 mm socket
Install the hub puller onto the LH rear brake rotor.

Note
5x lug nuts, 21mm, Hand tight.
Use hub puller to free LH rear halfshaft from hub splines.
Remove hub puller from LH rear hub assembly.

Note
5x lug nuts, 21mm, Hand tight.
Remove rotor from LH rear knuckle.
Remove bolts securing LH rear driven hub to knuckle assembly .

Note
4x bolts, 18mm, 90 Nm.
Remove LH rear driven hub from knuckle assembly.

Note
Caution: A magnetic field from a pick-up tool or magnetic parts tray could permanently damage the magnetic pattern on the hub/bearing tone ring, Place hub on a non-magnetic surface.
Remove LH rear brake shield from vehicle.

Note
3x bolts, T30, 8 Nm .
Remove nut securing LH rear air spring module to LH rear knuckle.

Note
1x nut, 21mm, 150 Nm, Do not remove the bolt.
Remove bolt securing LH rear upper fore link to knuckle.

Note
1x bolt, 1x flag nut, 21mm, 150 Nm.
Remove bolt securing LH rear toe link to knuckle.

Note
1x bolt, 1x flag nut, 21mm, 150 Nm.
Remove bolt securing LH rear lower fore link to knuckle.

Note
1x bolt, 1x flag nut, 21mm, 150 Nm.
Remove bolt securing LH rear upper aft link to knuckle.

Note
1x bolt, 21mm, 150 Nm.
Remove bolt securing LH rear lower aft link to knuckle.

Note
1x bolt, 1x flag nut, 21mm, 150 Nm.
Remove LH rear knuckle from vehicle.

Note
Recommend assistance, Support knuckle as needed, Remove bolt holding knuckle to air strut and remove knuckle assembly.

Install

Apply Molykote M-77 to outboard side of LH axle shaft.

Note
Clean if necessary, Apply no more than 1 gram to axle only.
Position LH rear knuckle for installation.

Note
Recommend assistance, Place knuckle into vehicle for installation, If required, use a bolt or punch to temporarily hold knuckle in place, Remove pin punch when fasteners for the links are ready to be installed.
Install bolt securing LH rear lower aft link to knuckle.

Note
1x bolt, 1x flag nut, 21mm, 150 Nm, Insert bolt and secure flag nut, Torque at later step.
Install bolt securing LH rear toe link to knuckle.

Note
1x bolt, 1x flag nut, 21mm, 150 Nm, Insert bolt and secure flag nut, Torque at later step.
Install bolt securing LH lower fore link to knuckle.

Note
1x bolt, 1x flag nut, 21mm, 150 Nm, Insert bolt and secure flag nut, Torque at later step.
Install bolt securing LH upper fore link to knuckle.

Note
1x bolt, 1x flag nut, 21mm, 150 Nm, Insert bolt and secure flag nut, Torque at later step.
Install bolt securing LH rear upper aft link to knuckle.

Note
1x bolt, 1x flag nut, 21mm, 150 Nm, Insert bolt and thread in fully, Torque at later step.
Install bolt securing LH rear air spring module to LH rear knuckle.

Note
1x bolt, 1x nut, 21mm, 150 Nm, Recommend assistance, Use shop towel and prevent marring on the air spring module, Line up air spring module with knuckle utilizing pry bar, Torque at later step.
Install LH rear brake shield.

Note
3x bolts, T30, 8 Nm .
Clean mating surfaces of the rear driven hub and wheel speed sensor.

Note
Clean area of any debris or grease, Ensure a clean surface for reading of wheel speed sensor, Allow 1 minute for IPA to dry.
Check the tone ring on hub and bearing assembly prior to installation.

Note
Use the magnetic field viewing card to ensure that the magnetic field on the tone ring is not damaged, Refer to toolbox article 28542 for further information on checking the tone ring.
Position LH rear driven hub for installation into knuckle and start threads for the bolts.

Note
4x bolts, 15mm, 90 Nm, Correctly line up and guide axle splines through the hub, Recommend assistance, Hold down hub flush to the knuckle while someone threads in the hub bolts.
Fully torque LH rear driven hub assembly.

Note
4x bolts, 18mm, 90 Nm, Tighten down hub evenly and diagonally, Do not damage or bend axle, Axle splines should be correctly fitted before tightening down the hub.
Position rotor onto LH rear knuckle.
Hand-tighten axle nut and new washers that attach the halfshaft to the rear hub .
Note
1x nut, 32mm, 245 Nm, Torque at later step.
Tip: Use of the following tool(s) is recommended:
- 32 mm deep impact socket
Install hub jack adapter onto LH rear hub.

Note
5x lug nuts, 21mm, Hand tight, Use modified hydraulic hub tool if correct adapter is not available.
Position and raise support stand to simulate LH rear suspension at ride height.
Measure the distance from the upper fore link to the bolt on the frame rail to make sure LH suspension is set to ride height.

Note
Distance should be 85mm +/- 5mm.
Torque bolt securing LH rear toe link to knuckle.

Note
1x bolt, 1x flag nut, 21mm, 150 Nm, Mark with paint pen.
Torque bolt securing LH rear upper fore link to knuckle.

Note
1x bolt, 1x flag nut, 21mm, 150 Nm, Mark with paint pen.
Torque bolt securing LH rear lower aft link to knuckle.

Note
1x bolt, 1x flag nut, 21mm, 150 Nm, Mark with paint pen.
Torque bolt securing LH rear lower fore link to knuckle.

Note
1x bolt, 21mm, 170 Nm, Mark with paint pen.
Torque bolt securing LH rear upper aft link to knuckle.

Note
1x bolt, 21mm, 150 Nm, Mark with paint pen.
Torque bolt securing the LH shock to knuckle.

Note
1x nut, 21mm, 150 Nm, Mark with paint pen.
Remove support stand from underneath LH rear suspension.

Note
Lower stand until suspension is unladen before removal.
Remove hub jack adapter from LH rear hub.

Note
5x lug nuts, 21mm, Hand tight.
Install LH rear brake caliper to knuckle.

Note
2x bolts, E18, 125 Nm, Remove S-hook.
Secure LH rear brake hose to LH rear lower control arm.

Note
1x bolt, 10mm, 6 Nm.
Secure LH rear stabar link to rear knuckle assembly.

Note
1x nyloc nut, 15mm, 55 Nm, Install new fastener,Counter-hold ball joint with 5mm hex.
Route and install bolts securing LH rear knuckle harness bracket .

Note
2x bolts, T30, 5 Nm, Route into place and secure.
Secure subframe harness to LH lower aft arm.

Note
1x clip.
Install LH rear ANC sensor.

Note
1x bolt, 10mm, 6 Nm.
Secure connector to LH rear ANC sensor.

Note
1x connector, Engage red locking tab.
Install wheel speed sensor to LH rear knuckle .

Note
1x bolt, T30, 5 Nm.
Secure harness clip onto LH rear knuckle.

Note
1x clip.
Secure subframe harness to LH rear active dampener.

Note
2x connectors, 1x grommet.
Connect LH EPB caliper harness connector.

Note
1x connector, Fully seat connector then engage locking tab.
Install LH rear wheel.

Note
5x nuts, 21mm, 175 Nm, Start lug nuts by hand before using power tool.
Lower vehicle until tires are touching the ground.

Note
Raise lift off locks, then hold lock release lever to keep locks free while vehicle is lowered.
Torque LH rear wheel.

Note
5x nuts, 21 mm, 175 Nm.
Torque LH rear axle nut.

Note
1x nut, 32mm, 245 Nm.
Install LH rear wheel center cap.

Note
1x cap, Verify emblem is aligned with valve stem.
Hold brake pedal and select park on UI to disable EPB service mode.
Remove vehicle from lift.

Note
Lower rack arms fully and remove them from under vehicle, Remove air suspension from "Jack Mode".
Refer to the Alignment Requirement tables to determine whether an EPAS alignment check (EC) or four wheel alignment check (AC) is necessary. If performed, add the alignment check/adjust as a separate activity. See Alignment Requirement - Suspension.