Hose - Outlet - Rear Drive Unit (3DU) (Remove and Replace)
Correction code 18302502 0.72 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 wearing proper PPE when performing the below procedure. 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 wearing proper PPE when performing the below procedure.
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Raise and support vehicle
- Open LH front door
- Lower LH front window
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Open hood
NotePress "Open" button on touchscreen to release latch, Lift lid manually
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Remove rear apron
Note12x clips, Only store rear apron visible face upwards
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Remove cabin intake upper duct assembly
Note3x clips, Some configurations may come with 4x clips
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Power off vehicle from center display
NoteVia Controls > Safety > Power Off, Select Power Off button at warning dialogue box
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Disconnect 12V negative terminal
Note1x nut, 10mm, 6 Nm, Ensure vehicle is in park, climate control system is off, and vehicle is not charging before disconnecting 12V
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Disconnect first responder loop
Note1x connector, Release locking tab
- Close LH front door
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Raise vehicle fully and lower lift onto locks
NoteSet 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, Verify doors are clear of surrounding objects
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Remove mid aero shield
Note13x bolts, 10mm, 5 Nm
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Release clips securing coolant hoses to LH shear plate
Note2x fir tree clips
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Release LH side hose clip from rear battery skid plate enclosure
Note2x clips, Clip quantity may vary on older vehicles
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Release RH side hose clips from rear battery skid plate enclosure
Note2x fir tree clips
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Release clips securing coolant hoses to RH shear plate
Note2x fir tree clips
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Remove lower bolts securing HV battery rear skid plate enclosure
Note2x bolts, EP10, 13 Nm, Older vins may be equipped with additional fastener count
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Remove upper nut securing HV battery rear skid plate enclosure
Note1x nut, 10mm, 13 Nm, Fastener count may vary on older built vehicles
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Remove upper bolts securing HV battery rear skid plate enclosure
Note4x bolts, 13mm, 35 Nm
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Remove HV battery rear skid plate enclosure
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Position coolant drain container underneath RH rear of vehicle
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Disconnect RDU outlet hose from PT return tube and plug both hose ends
Note1x spring clip, 2x plugs, Lower hose located at RH rear of HV battery, Use shop towel to clean any residue coolant if necessary, Coolant loss greater than 1 L will require vacuum fill
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Release coolant outlet hose from RDU heat exchanger
Note1x spring clip
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Release coolant outlet hose clip from RDU heat exchanger
Note1x clip
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Remove the outlet hose clips from RDU assembly
Note3x clips
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Remove RDU outlet hose from RDU assembly
NoteGently wiggle hose out from the subframe
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Install RDU outlet hose to RDU assembly
NoteGently install the hose to the subframe
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Install RDU outlet hose to RDU heat exchanger
Note2x clips, 1x Plug, Remove plug from heat exchanger, Perform push-pull-push test to make sure hose is fully engaged, Clean excess coolant from area
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Secure RDU outlet hose onto RDU assembly
Note3x fir tree clips. Reach into the gap between the subframe and the RDU by hand or with a long screwdriver
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Remove hose plugs and connect RDU outlet hose to PT return tube
Note1x spring clip, 2x plugs, Perform push-pull-push test to make sure hose is fully engaged, Use shop towel to clean any coolant residue if necessary, Loss of coolant greater than 1L requires coolant vacuum fill
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Remove coolant drain container from underneath vehicle
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Position HV battery rear skid plate enclosure onto HV battery for installation
NoteRecommend assistance if needed
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Install upper bolts securing HV battery rear skid plate enclosure hand tight
Note4x bolts, 13mm, 35 Nm, Torque at later step
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Install upper nut securing HV battery rear skid plate enclosure hand tight
Note1x nut, 10mm, 13 Nm, Torque at later step
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Install lower bolts securing HV battery rear skid plate enclosure
Note2x bolts, EP10, 13 Nm, Earlier vins may be equipped with additional bolts
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Torque bolts securing HV battery rear skid plate enclosure to vehicle
Note4x bolts, 13mm, 35 Nm
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Torque upper nut securing HV battery rear skid plate enclosure
Note1x nut, 10mm, 13 Nm
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Install clips securing coolant hoses to RH shear plate
Note2x fir tree clips
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Install RH side hose clips to HV battery rear skid plate enclosure
Note2x fir tree clips
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Install LH side hose clip to HV battery rear skid plate enclosure
Note2x clips, Clip quantity may vary on older vehicles
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Install clips securing coolant hoses to LH shear plate
Note2x fir tree clips
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Apply Loctite 222 onto mid aero shield bolts and install mid aero shield
Note13x bolts, 10mm, 5 Nm
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Lower vehicle until tires are touching ground
NoteRaise lift off locks, then hold lock release lever to keep locks free while vehicle is lowered
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Remove coolant bottle cap
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Connect first responder loop
Note1x connector, Engage locking tab, Connect FRL before connecting 12V to avoid damage to car computer
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Connect 12V negative terminal
Note1x nut, 10mm, 6 Nm
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Connect to vehicle using Toolbox 3.0
NoteVehicle connection is integrated into drivers footwell cover, Open Toolbox 3 website and establish connection to the vehicle, https://toolbox.teslamotors.com, Select connection status icon at top right corner, and select connect locally (icon will turn green when vehicle is connected)If RJ45 ethernet diagnostic connector present connect directly from laptop using an RJ45 Ethernet cable
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Select ‘Actions/Autodiag’ tab and search for ‘Purge'
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Select ‘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
- 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
NoteMake 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 - Remove HSD or RJ45 cable from Ethernet port to disconnect Toolbox 3.0 from vehicle
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Inspect coolant level and top off as necessary
NoteEnsure that fluid level is at Max line
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Install coolant bottle cap
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Install cabin intake upper duct assembly
Note3x clips, Some configurations may come with 4x clips
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Install rear apron
Note12x clips
- Close hood
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Remove vehicle from lift
NoteLower rack arms fully and remove from under vehicle