Fluid Coupling (Straight) - Rear Drive Unit (Remove and Replace)

Verify there is no abnormal tire wear per Courtesy Inspection

Note

SC-14-00-001 Standard Courtesy Inspection Checklist, While performing courtesy inspection, Note any abnormal tire wear that could indicate the need for an alignment

Raise and support vehicle

Open all four doors

Note

If vehicle is being powered down, Latch rear doors to prevent accidental closure

Lower all four windows

Connect to vehicle using Toolbox 3

Note

Vehicle connection is integrated into drivers footwell cover, Navigate to https://toolbox.teslamotors.com and establish connection to vehicle, Select connection status icon at top right corner then select connect locally, Icon will turn green when connected, Successful connection will automatically unlock vehicle gateway and place UI in Service Mode Plus, If RJ45 ethernet diagnostic connector present connect directly from laptop using an RJ45 Ethernet cable, For local connection issues with Toolbox 3 refer to https://toolbox.teslamotors.com/articles/43695

Run the "Start Thermal Fluid Fill/Drain (Coolant only)" routine. PROC_VCFRONT_X_START-THERMAL-FILL-DRAIN-COOLANTvia Toolbox: (link)via Service Mode Plus:

Drive Inverter ➜ Front Drive Inverter Replacement ➜ Start Fluid Fill/Drain
Drive Inverter ➜ Rear Drive Inverter Replacement ➜ Start Fluid Fill/Drain
Drive Inverter ➜ Rear Left Drive Inverter Replacement ➜ Start Fluid Fill/Drain
Drive Inverter ➜ Rear Right Drive Inverter Replacement ➜ Start Fluid Fill/Drain
Drive Unit ➜ Front Drive Unit Replacement ➜ Start Coolant Fill/Drain
Drive Unit ➜ Rear Drive Unit Replacement ➜ Start Coolant Fill/Drain

Note

Select ‘X’ at top right of window to close once complete, Verify vehicle is in Series via Garage > Vitals > Thermal tab > Coolant loops, Thermal Fluid Fill/Drain routine has a 5 hour limit, After 5 hours routine must be performed again

Remove laptop from vehicle

Note

Do not close Toolbox 3.0, we will need to resume later

Move LH front seat forward

Move RH front seat forward

Remove 2nd row seat cushion

Note

2x tabs, 2x connectors, Slide locking tabs to left of vehicle while lifting up seat benchNewer models have connectors on both sides of bench, Older models have 2x connectors on one side of bench

Open hood

Note

Press "Open" button on touchscreen to release latch, Lift lid manually

Remove rear apron

Note

12x clips, Only store rear apron visible face upwards

Remove cabin intake upper duct assembly

Note

3x clips, Some configurations may come with 4x clips

Power off vehicle from center display

Note

Via Controls > Safety > Power Off, Select Power Off button at warning dialogue box

Disconnect 12V negative terminal

Note

1x nut, 10mm, 6 Nm, Ensure vehicle is in park, climate control system is off, and vehicle is not charging before disconnecting 12V

Remove 12V cap from ancillary

Note

1x cap

Disconnect HVC logic connector and install logic cap

Note

1x connector, 1x cap, Release locking tab then push the handle downward to release connector

Remove all items from pockets and ensure not wearing metal items

Inspect HV insulating gloves

Note

Check gloves for damage prior to use, Refer to service document TN-15-92-003, for information on inspecting HV gloves. https://service.teslamotors.com/documents?model=&keys=TN-15-92-003&vehicle_system=&sort_by=field_date_submitted&sort_order=DESC

Put on HV insulating gloves and leather over gloves

Note

Use HV cut resistant insulated gloves or HV insulating gloves and leather over gloves

Release ancillary bay probe lid cover

Note

2x bolts, EP10 5-Lobe, 6 Nm, Discard fasteners after removal

Remove ancillary bay probe lid cover from ancillary bay cover

Verify no high voltage

Note

Make sure to wear PPE (HV gloves, safety glasses) when working on high voltage component, Measure B+ to Ground, B- to Ground, B+ to B-, If voltage is greater than 10V, Pack contactors are not open or welded, Stop work and reach out to Service Engineering

Inspect ancillary bay probe lid cover gasket then position onto ancillary bay cover

Note

Confirm no damage is present, Seal can be re-used

Install ancillary bay probe lid cover to ancillary bay cover

Note

2x bolts, E10 5-Lobe, 6 Nm, Install new fasteners

Remove HV insulating gloves

Remove LH rear wheel center cap

Note

1x cap

Loosen LH rear wheel

Note

5x nuts, 21mm, 175 Nm

Remove RH rear wheel center cap

Note

1x cap

Loosen RH rear wheel

Note

5x nuts, 21mm, 175 Nm

Raise vehicle partially and lower lift 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

Remove RH rear wheel

Note

5x nuts, 21mm, 175 Nm

Raise vehicle fully and lower lift 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 side, Verify doors are clear of surrounding objects

Remove LH rear suspension cover

Note

1x bolt, 10mm, 6 Nm, 2x tabs

Remove RH rear suspension cover

Note

1x bolt, 10mm, 6 Nm, 2x tabs

Remove mid aero shield

Note

13x bolts, 10mm, 5 Nm

Remove lower clips securing LH rear wheel liner

Note

3x push clips

Remove lower clips securing the RH rear wheel liner

Note

3x push clips

Remove bolts securing rear diffuser to body

Note

6x bolts, 10mm, 4 Nm, 2x fastener covers

Remove outer bolts securing rear diffuser to rear fascia assembly

Note

4x bolts, 10mm, 3 Nm

Remove bolts securing rear lower fascia to rear fascia diffuser

Note

2x bolts, 10mm, 3 Nm

Release tabs securing rear diffuser to rear fascia and remove from vehicle

Note

10x tabs, Start from one side and work your way across while releasing tabs

Disconnect RH side 12V subframe harness connector

Note

1x connector, Release locking tab

Remove RH side 12V subframe harness clip from body

Note

1x barrel clip

Disconnect LH side 12V subframe harness connector

Note

1x connector

Remove LH side 12V subframe harness clip from body

Note

1x barrel clip

Remove nut securing RDU ground strap to vehicle

Note

1x nut, 10mm, 10 Nm, Located at LH rear wheel well area

Remove nut securing LH rear stabilizer bar end link to stabilizer bar

Note

1x nyloc nut, 15mm, 55 Nm, Break nut loose then counter-hold ball joint with 5mm hex, Discard after removal

Remove stabilizer bar from LH rear end link

Note

May need to move the stabilizer bar up/down to get the correct angle to remove end link

Remove nut securing RH rear stabilizer bar end link to stabilizer bar

Note

1x nyloc nut, 15mm, 55 Nm, Break nut loose then counter-hold ball joint with 5mm hex, Discard after removal

Remove stabilizer bar from RH rear end link

Note

May need to move the stabilizer bar up/down to get the correct angle to remove end link

Remove bolts securing rear stabilizer bar to subframe and remove assembly

Note

4x patch bolts, 11mm, 30 Nm, Discard after removal

Release clips securing coolant hoses to LH shear plate

Note

2x fir tree clips

Release LH side hose clip from rear battery skid plate enclosure

Note

2x clips, Clip quantity may vary on older vehicles

Release RH side hose clips from rear battery skid plate enclosure

Note

2x fir tree clips

Release clips securing coolant hoses to RH shear plate

Note

2x fir tree clips

Remove lower bolts securing HV battery rear skid plate enclosure

Note

2x bolts, EP10, 13 Nm, Older vins may be equipped with additional fastener count

Remove upper nut securing HV battery rear skid plate enclosure

Note

1x nut, 10mm, 13 Nm, Fastener count may vary on older built vehicles

Remove upper bolts securing HV battery rear skid plate enclosure

Note

4x bolts, 13mm, 35 Nm

Remove HV battery rear skid plate enclosure

Position coolant drain container under rear of vehicle

Disconnect RDU inverter inlet tube from LH rear of HV battery

Note

1x spring clip, 2x plugs, Plug HV battery and hose, Coolant loss greater than 1 L will require vacuum fill

Disconnect RDU inverter inlet tube from fluid coupling

Note

1x spring clip, 2x plugs, Plug the hose end and the fluid coupling

Release RDU inverter inlet tube from RDU HV cable harness

Note

1x fir tree clip

Remove RDU inverter inlet hose from between subframe and drive unit

Remove coolant drain container from underneath vehicle

Release RDU logic connector

Note

1x connector, Do not get coolant ingress in connector, Move aside as needed

Remove RDU 12V harness clip

Note

1x clip

Remove bolt securing RDU HV cable bracket to RDU

Note

1x bolt, 10mm, 6 Nm

Release RDU HV harness connection

Note

1x connector, Release locking tab and rotate the release lever up to disengage the connector, Do not force the release lever up, Ensure the alignment tabs on the RDU header are not damaged

Remove nut securing RDU HV cable bracket to HV battery

Note

1x nut, 10mm, 10 Nm, Number of fasteners may vary

Disconnect RDU HV cable from HV battery

Note

1x connector, Release locking tab and rotate the release lever up to disengage the connector, Do not force the release lever up, Ensure the alignment tabs on the RDU header are not damaged

Remove RDU HV harness from between subframe and drive unit

Note

Maneuver HV harness out from in between, Rotate as needed,

Place subframe lifting tool into position underneath rear subframe

Connect air supply to subframe lifting tool

Raise subframe lifting tool to support rear subframe

Note

3x straps, Attach metal hooks at the end of straps to rings on subframe lifting tool and pull straps until secure, Lower the vehicle if necessary, Recommend assistance

Mark LH rear and RH rear subframe bolts

Note

2x bolts, Mark original location of subframe, Re-align during install, Can also mark subframe casting and subframe bushing to body if needed

Remove smaller fasteners securing LH shear plate

Note

2x bolts, 13mm, 35 Nm

Remove large bolt securing LH shear plate and subframe to body and remove shear plate

Note

1x bolt, 21mm, 130 Nm, Discard after removal

Remove smaller fasteners for RH shear plate

Note

2x bolts, 13mm, 35 Nm

Remove large bolt securing RH shear plate and subframe to body and remove shear plate

Note

1x bolt, 21mm, 130 Nm, Discard after removal

Remove LH rear bolt securing subframe to body

Note

1x bolt, 21mm, 165 Nm, Discard after removal

Remove RH rear bolt securing subframe to body

Note

1x bolt, 21mm, 165 Nm, Discard after removal

Partially lower the rear subframe and drive unit assembly

Note

Lower the subframe partially, Use caution while lowering subframe as multiple components are still attached, Do not overstrain these components, The dampers and brake calipers are still connected, Recommend lowering about 3.25in or 8.25cm

Tilt subframe fixture forward

Note

Adjust the powertrain lift and tilt it forward in order to access motor mount fasteners

Support center of the RDU with protective block

Note

Using a rubber or wood block, support the center of the RDU while mount is disconnected, Do not damage drive unit

Remove LH mount bolt securing drive unit to subframe

Note

1x bolt, 18mm, 80 Nm, Remove fastener, Use a pry to aid as needed, Do not damage drive unit casting

Release RDU ground strap clip from subframe

Note

1x clip

Release inverter to cooler hose clip and release hose

Note

1x clip, 1x hose clip, Plug both ends, Release clip, Use a long flathead to release clip on hose and release hose

Remove the bolts for RDU LH mount assembly

Note

3x bolts, E14, 35 Nm and 55 degrees, Break loose and remove fasteners

Remove LH mount assembly from between rear drive unit and subframe

Note

Maneuver upwards and remove

Remove bolt secure outlet fitting to manifold

Note

1x bolt, T25, 6 Nm

Remove coolant outlet fitting

Install coolant outlet fitting

Install bolt secure outlet fitting to manifold

Note

1x bolt, T25, 6 Nm

Install coolant pressure test plug adapter to Straight Fluid Coupling

Note

1x spring clip, Make sure the locking clip is fully seated

Install coolant pressure adapter to 55deg Fluid Coupling

Note

1x spring clip, Make sure the locking clip is fully seated

Attach coolant pressure tester to pressure fitting adapter

Attach coolant pressure tester to compressed air line

Note

Make sure valves are closed on pressure regulator

Set pressure regulator to specified pressure value

Note

Set pressure to 50 psi

Slowly open valve on pressure regulator and allow pressure to reach specification

Close the valve and let the pressure test settle

Note

Wait 16 seconds for pressure to settle, Record the reading

Perform the coolant pressure leak test

Note

Wait for another 12 seconds and record the reading, Max delta 0.10 psi, Check coolant hose to see if it is fully seated or not if pressure test fails

Disconnect compressed air from coolant pressure tester

Remove pressure fitting adapter from coolant pressure tester

Remove coolant pressure tester from 55deg Fluid Coupling

Note

1x spring clip

Remove coolant pressure test plug adapter from Straight Fluid Coupling

Note

1x spring clip

Position LH mount assembly in between rear drive unit and subframe

Note

Maneuver between drive unit and subframe

Install and torque bolts securing the LH mount assembly

Note

3x bolts, E14, 35 Nm and 55 degrees, Follow torque sequence per image

Install LH bolt securing rear drive unit to subframe

Note

1x bolt, 18mm, 80 Nm

Remove center support from RDU

Secure inverter to cooler hose to inverter

Note

1x spring clip, 2x plugs, 1x clip, Perform push-pull-push test to make sure hose is fully engaged

Secure RDU ground strap clip onto subframe

Note

1x clip

Tilt subframe fixture backwards to original position

Note

Tilt subframe fixture back to original position

Raise the partially lowered subframe

Note

Use caution to not damage components while raising subframe

Install RH rear bolt securing rear subframe to body hand tight

Note

1x bolt, 21mm, 165 Nm, Install new bolt, Torque at later step

Install LH rear bolt securing rear subframe to body hand tight

Note

1x bolt, 21mm, 165 Nm, Install new bolt, Torque at later step

Install LH front bolt and shear plate to rear subframe hand tight

Note

1x bolt, 21mm, 130 Nm, Install new bolt, Torque at later step

Install bolts securing LH shear plate to HV battery hand tight

Note

2x bolts, 13mm, 35 Nm

Install RH front bolt and shear plate to rear subframe hand tight

Note

1x bolt, 21mm, 130 Nm, Install new bolt, Torque at later step

Install bolts securing RH shear plate to HV battery hand tight

Note

2x bolts, 13mm, 35 Nm

Position subframe to marked location

Note

Use previous markings to align subframe to body, Return to original position as close as possible

Torque bolt securing RH rear of subframe to body

Note

1x rear bolt, 21mm, 165 Nm, Mark bolt after torque

Torque bolt securing LH rear of subframe to body

Note

1x rear bolt, 21mm, 165 Nm, Mark bolt after torque

Torque bolt securing subframe and LH shear plate to body

Note

1x front bolt, 21mm, 130 Nm, Mark bolt after torque

Torque bolt securing subframe and RH shear plate to body

Note

1x front bolt, 21mm, 130 Nm, Mark bolt after torque

Torque bolts securing shear plates to vehicle

Note

4x bolts, 13mm, 35 Nm

Lower rear subframe lifting tool from vehicle

Note

Verify yellow safety straps are removed from subframe

Disconnect air supply from subframe lifting tool

Remove subframe lifting tool from underneath vehicle

Position RDU HV harness for install between subframe and drive unit

Note

Maneuver HV harness into position, Rotate as needed

Connect RDU HV cable to HV battery

Note

1x connector, Make sure the connector lock is 90 degrees from the connector before beginning to secure the connector, Use one hand to support the connector while other latching locking tab. Once installed, verify that the latch is not damaged and fully secured in the latched position

Install nut securing RDU HV cable bracket to HV battery

Note

1x nut, 10mm, 10 Nm, Number of fasteners may vary

Connect RDU HV cable to RDU

Note

1x connector, Install HV connector lever lock to RDU HV cable connector, Align connector to RDU then remove HV connector lever lock before fully latch connector, Use one hand to support the connector while other latching locking tab, Once installed, verify that the latch is not damaged and fully secured in the latched position

Install bolt securing RDU HV cable bracket to RDU

Note

1x bolt, 10mm, 6 Nm

Install RDU 12V harness clip

Note

1x clip

Secure RDU logic connector

Note

1x connector, Verify there is no coolant ingress in connector

Position coolant drain container under rear of vehicle

Position RDU inverter inlet hose for installtion between subframe and drive unit

Note

Position for install

Install coolant inlet hose clip to RDU

Note

1x fir tree clip

Remove plugs and connect RDU inverter inlet hose to LH rear of HV battery

Note

1x spring clip, Perform push-pull-push test to make sure hose is fully engaged.Loss of coolant greater than 1L requires coolant vacuum fill

Secure coolant inlet hose to rear drive unit

Note

1x spring clip, Remove any plugs if applicable, Perform push-pull-push test to make sure hose is fully seated

Remove coolant drain container from underneath vehicle

Position HV battery rear skid plate enclosure onto HV battery for installation

Note

Recommend assistance if needed

Install upper bolts securing HV battery rear skid plate enclosure hand tight

Note

4x bolts, 13mm, 35 Nm, Torque at later step

Install upper nut securing HV battery rear skid plate enclosure hand tight

Note

1x nut, 10mm, 13 Nm, Torque at later step

Install lower bolts securing HV battery rear skid plate enclosure

Note

2x bolts, EP10, 13 Nm, Earlier vins may be equipped with additional bolts

Torque bolts securing HV battery rear skid plate enclosure to vehicle

Note

4x bolts, 13mm, 35 Nm

Torque upper nut securing HV battery rear skid plate enclosure

Note

1x nut, 10mm, 13 Nm

Torque lower bolts securing rear battery enclosure skid plate

Note

2x bolts, EP10, 13 Nm, Earlier vins may be equipped with additional bolts

Install clips securing coolant hoses to RH shear plate

Note

2x fir tree clips

Install RH side hose clips to HV battery rear skid plate enclosure

Note

2x fir tree clips

Install LH side hose clip to HV battery rear skid plate enclosure

Note

2x clips, Clip quantity may vary on older vehicles

Install clips securing coolant hoses to LH shear plate

Note

2x fir tree clips

Position rear stabilizer bar into vehicle and install fasteners

Note

4x patch bolts, 11mm, 30 Nm, Position rear stabilizer bar into vehicle, Thread in fasteners and torque down evenly, Install new patch bolts

Position LH rear end link into stabilizer bar

Note

Adjust the end link to align with stabilizer bar, Also may need to move the stabilizer bar up/down to get the correct angle to install end link

Install nut securing LH rear end link to stabilizer bar

Note

1x nyloc nut, 15mm, 55 Nm, Counter-hold ball joint with 5mm hex, Install new nyloc nut, Mark bolt after torque

Position RH rear end link into stabilizer bar

Note

Adjust the end link to align with stabilizer bar, Also may need to move the stabilizer bar up/down to get the correct angle to install end link

Install nut securing RH rear end link to stabilizer bar

Note

1x nyloc nut, 15mm, 55 Nm, Counter-hold ball joint with 5mm hex, Install new nyloc nut, Mark bolt after torque

Install RDU ground strap

Note

1x bolt, 10mm, 10 Nm, Re-install 1x washer if vehicle had this washer during removal, Located at LH rear wheel well area

Install LH side 12V subframe harness clip to body

Note

1x barrel clip

Connect LH side 12V subframe harness connector

Note

1x connector

Install RH side 12V subframe harness clip to body

Note

1x barrel clip

Connect RH side 12V subframe harness connector

Note

1x connector

Install rear diffuser to vehicle then engage tabs securing it to fascia

Note

10x tabs

Install bolts securing rear diffuser to inner rear fascia

Note

2x bolts, 10mm, 3 Nm

Install outer bolts securing rear diffuser to rear fascia assembly

Note

4x bolts, 10mm, 3 Nm

Apply Loctite 222 onto rear diffuser bolts and install bolts securing rear diffuser to body

Note

6x bolts, 10mm, 4 Nm, 2x fastener covers, Number of bolts may vary on newer vehicles

Install lower clips securing LH rear wheel liner

Note

3x push clips

Install lower clips securing RH rear wheel liner

Note

3x push clips

Install mid aero shield

Note

13x bolts, 10mm, 5 Nm , Apply Loctite 222 to bolts

Install LH rear suspension cover

Note

1x bolt, 10mm, 6 Nm, 2x tabs

Install RH rear suspension cover

Note

1x bolt, 10mm, 6 Nm, 2x tabs

Lower vehicle partially and set onto locks

Note

Raise lift off locks, then hold lock release lever to keep locks free while vehicle is lowered, Set vehicle to comfortable working height

Remove superbottle cap

Install vacuum refill cap onto coolant bottle assembly

Place empty coolant container into front storage area

Fill container with at least 15L of coolant

Place filled coolant container into front storage area

Setup vacuum refill tool

Note

Verify all valves on refill tool are in the closed position, See image for clarity

Install vacuum refill hose into refill cap on coolant bottle

Note

Perform push-pull-push test to verify hose is fully installed

Place refill hose inside filled coolant container

Note

Make sure hose end is fully submerged into coolant

Position overflow hose into empty container

Connect shop air supply to coolant refill tool

Note

If not already done, Verify refill valve is set to off

Open air inlet valve to draw a vacuum, Once gauge stabilizes, Fully close valve

Note

Gauge stabilizes roughly (60-70 cmHg), Vacuum should not drop after the valves are closed

Slowly open refill valve to allow coolant to be drawn into system

Note

Make sure hose end of refill hose is fully submerged during entire process

Once gauge reads zero, close coolant refill valve

Remove vacuum refill hose from refill cap on coolant bottle

Remove refill tool cap from coolant bottle assembly

Remove coolant refill hose from coolant container

Remove coolant overflow hose from coolant container

Remove coolant refill tool from vehicle

Remove both coolant containers from inside underhood area

Remove logic cap and connect HVC logic connector

Note

1x connector, 1x cap, Align connector then pull the handle to locking position get connector fully seated

Install 12V cap to ancillary

Note

1x cap

Connect 12V negative terminal

Note

1x nut, 10mm, 6 Nm

Connect 2nd row seat cushion harness and install 2nd row seat cushion

Note

2x connectors, 2x clips, Insert the seat belt buckles through the holes, Slide rear cushion inward then align front guide tabs to locking tabs, Make sure cushion is fully seated with push & pull test near clips

Move LH front seat to original position

Move RH front seat to original position

Re-establish vehicle connection to Toolbox 3.0

Run the ‘Stop Thermal Fluid Fill/Drain’ routine. PROC_VCFRONT_X_STOP-THERMAL-FILL-DRAINvia Toolbox: (link)via Service Mode:

Thermal ➜ Actions ➜ Stop Thermal Fill/Drain
Thermal ➜ Coolant System ➜ Stop Coolant Fill/Drain
Thermal ➜ Refrigerant System ➜ Stop Refrigerant Fill/Drain

via Service Mode Plus:

Drive Inverter ➜ Front Drive Inverter Replacement ➜ Stop Fluid Fill/Drain
Drive Inverter ➜ Rear Drive Inverter Replacement ➜ Stop Fluid Fill/Drain
Drive Inverter ➜ Rear Left Drive Inverter Replacement ➜ Stop Fluid Fill/Drain
Drive Inverter ➜ Rear Right Drive Inverter Replacement ➜ Stop Fluid Fill/Drain
Drive Unit ➜ Front Drive Unit Replacement ➜ Stop Coolant Fill/Drain
Drive Unit ➜ Rear Drive Unit Replacement ➜ Stop Coolant Fill/Drain

Note

Select ‘X’ at top right of window to close once complete

Run the ‘TEST_VCFRONT_X_THERMAL-COOLANT-AIR-PURGE ’ routine. TEST_VCFRONT_X_THERMAL-COOLANT-AIR-PURGEvia Toolbox: (link)via Service Mode:

Thermal ➜ Actions ➜ Coolant Purge Stop or Coolant Purge Start
Thermal ➜ Coolant System ➜ Coolant Purge Start

via Service Mode Plus:

Drive Inverter ➜ Front Drive Inverter Replacement ➜ Coolant Air Purge
Drive Inverter ➜ Rear Drive Inverter Replacement ➜ Coolant Air Purge
Drive Inverter ➜ Rear Left Drive Inverter Replacement ➜ Coolant Air Purge
Drive Inverter ➜ Rear Right Drive Inverter Replacement ➜ Coolant Air Purge
Drive Unit ➜ Front Drive Unit Replacement ➜ Coolant Air Purge
Drive Unit ➜ Rear Drive Unit Replacement ➜ Coolant Air Purge

Note

Make sure vehicle is not in drive state, Plan is still running despite the stop message, Coolant pumps will be audible, Test lasts approximately 10 mins, Speeds can be monitored in garage under PT Thermal tab, Idle speed = ~1500 RPM, Test will vary speeds from 3500-6500 RPM and actuate valve between SERIES and PARALLEL, Putting vehicle into drive state will stop this routine, If speeds hover at 7000 RPM, that means the pumps are air locked, perform vacuum fill again, Continue to add coolant and purge until the coolant level reaches between the NOM and MAX Lines on the bottle, Select ‘X’ at top right of window to close once complete

Disconnect Toolbox 3 from vehicle and remove laptop and Diagnostics Adapter Ethernet Harness

Note

If RJ45 ethernet diagnostic connector present media converter box not required disconnect directly from laptop using an RJ45 Ethernet cable or from OBDII connection

Inspect coolant level and top off as necessary

Note

Ensure that the fluid level is 5mm above the Max line

Install coolant reservoir cap

Raise vehicle partially and lower lift 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

Install LH rear wheel

Note

5x nuts, 21mm, 175 Nm, Start lug nuts by hand before using power tool

Install RH rear wheel

Note

5x nuts, 21mm, 175 Nm, Start lug nuts by hand before using power tool

Lower vehicle until tires are touching ground

Note

Raise lift off locks, Then hold lock release lever to keep locks free while vehicle is lowered

Torque RH rear wheel

Note

5x nuts, 21mm, 175 Nm

Install RH rear wheel center cap

Note

1x cap, Verify emblem is aligned with valve stem

Torque LH rear wheel

Note

5x nuts, 21mm, 175 Nm

Install LH rear wheel center cap

Note

1x cap, Verify emblem is aligned with valve stem

Install cabin intake upper duct assembly

Note

3x clips, Some configurations may come with 4x clips

Install rear apron

Note

12x clips

Close hood

Raise all windows

Close all four doors

Note

Unlatch rear doors before closing

Remove vehicle from lift

Note

Lower rack arms fully and remove from under vehicle

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 correction code as a separate activity to the SV.

Note

https://service.tesla.com/docs/Model3/ServiceManual/en-us/GUID-FBF882A5-F87B-48A7-AC03-3AF71C2B11E5.html

2017–2023 Model 3 Service Manual

Fluid Coupling (Straight) - Rear Drive Unit (Remove and Replace)

Procedure

Figure 1

Figure 2

Figure 3