Oil Pump - Rear Drive Unit (Long Range) (Remove and Replace)
Correction code 40304602 0.54 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.
- 2024-02-06: Updated gearbox fluid to KAF1.
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Raise and support vehicle
NotePrepare to raise vehicle, Set air suspension to "Jack Mode", Position lift arm pads on vehicle jack pads
- Open LH front door
- Lower LH front window
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Open hood
NoteVia Center Display > Controls > Frunk Open
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Remove rear underhood apron
Note8x clips
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Power off vehicle from center
display
NoteVia Controls > Safety & Security > Power Off
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Disconnect LV battery connector and
First Responder Loop
Note2x connectors, Lift up and release green locking tab, Pull black connector lock outwards to release connection
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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
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Remove clips securing mid aero
shield
Note4x push clips
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Remove bolts securing mid aero shield
and remove from vehicle
Note16x bolts, 10mm, 6 Nm
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Position oil drain container under RDU
drain valve
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Remove fill plug from RDU
Note1x plug, 8mm allen, 15 Nm
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Disconnect oil pump connector
Note1x connector
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Remove fasteners securing RDU oil
pump
Note2x bolts, EP10, 5 Nm and 20 degrees
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Remove RDU oil pump assembly
NotePry the pump away from the RDU, Be cautious when prying to avoid damage to plastic and casting, Allow the oil to drain from the RDU
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Remove RDU oil filter
NoteTesla recommends that the oil filter is replaced with a new one upon removal. Any oil filter with visible corrosion or leaks must be replaced.
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Inspect seals and O-rings
NoteInspect O-rings on removed parts, 3 O-rings on pump, one O-ring on fill plug, if missing O-ring on pump ensure it is not left in housing, if damaged O-ring on plug replace affected plug, Replace all O-rings on oil pump if damaged, Check seal on oil filter, if missing check if still on housing and remove before install
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Install new RDU oil filter
NoteTesla recommends that the oil filter is replaced with a new one upon removal. Any oil filter with visible corrosion or leaks must be replaced.NoteSpin clockwise, 3 Nm and 135 degrees, Lubricate seal prior to installation
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Install RDU oil pump assembly
NoteInspect O-rings for damage and verify none are stuck inside the drive unit casting, Replace O-rings if necessary, Lightly coat O-rings with clean fluid
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Install fasteners securing RDU oil
pump
Note2x bolts, EP10, 5 Nm and 20 degrees
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Set up fill kit with KAF1 gearbox
fluid.
NoteFill measuring container to 2.3L / 2300 mL - Long range rear drive unit will take 2.1L of fluid
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Install fluid transfer pump
NoteTrim both input and output hoses to 26", Insert output hose into fill hole until fully seated then pull back 5mm
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Set up fill process
NotePlace measured fluid container in drain basket, Fully submerge input hose, Prime pump with drive unit fluid
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Connect 12V power supply to RDU oil
pump
Note1x connector, Engage locking tab
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Pump fluid into rear drive unit
NoteRecommend assistance, Do not run oil pump dry, Pump fluid into drive unit, Run oil pump in between to cycle fluid, The minimum refill capacity of the rear drive unit assembly is 2.1L, Using excess gearbox fluid in the fill container allows the oil pump to dispense the full 2.1L without drawing air, Make sure that there is less than 200mL left when completed, Pumping the full 2.3L is not required
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Install fill plug onto RDU
Note1x plug, 8mm Allen, 15 Nm,
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Disconnect 12V power supply from RDU oil
pump
Note1x connector
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Connect oil pump connector
Note1x connector, Engage locking tab
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Spray area with brake cleaner and wipe
residual fluid off with towel
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Remove oil drain container from
underneath vehicle
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Apply Loctite 222 onto mid aero shield
bolts and install fasteners securing mid aero shield to vehicle
Note16x bolts, 10mm, 6 Nm
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Install clips securing mid aero
shield
Note4x push clips
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Lower vehicle fully
NoteRaise lift off locks, then hold lock release lever to keep locks free while vehicle is lowered
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Connect First Responder Loop and LV
battery connector
Note2x connectors Secure FRL first, Seat LV battery connection and push black connector lock inwards to secure, Engage green locking tab when fully seated
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Install rear underhood apron
Note8x clips
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Release IP service panel
Note2x tabs, 4x datums, Release top tabs and slide rearward
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Using laptop connect to vehicle with
ethernet diag kit and Toolbox 3
NoteOpen Toolbox 3 website and establish connection to the vehicle, https://toolbox.teslamotors.com, For local connection issues with Toolbox 3 refer to article #43695, Media converter box is powered by laptop USB or 12v power outlet, Ethernet connection will provide communication
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Select "Actions" tab and search for
"Service-Redeploy"
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Select "SERVICE CAN REDEPLOY", click
"Run", and allow routine to complete
NoteSelect "X" at top right of window to close once complete, Routine will state pass but update will continue to run in the background, UI will show update progress
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Select the clock on the center display,
or go to the Software tab, then select install now to start firmware update
NoteSelect Install Now, Tap count down timer until clock runs down to 0, Check the center display and ensure the firmware package was successfully installed
- Select "Actions/Autodiag" tab and search for "Oil Pressure"
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Select TEST-SELF_DIR_X_OIL-PUMPSearch for routine in ToolboxOil Pump Communication Test - Rear-PRESSURE,
click "Run", and allow routine to complete
NoteIf this test is failing, add additional fluid and retest. Select "X" at top right of window to close once complete
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Disconnect Toolbox 3 from vehicle and
remove laptop and ethernet diag kit
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Install IP service panel
Note2x tabs, 4 datums, Slide forward engaging datums then secure tabs upward into IP
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Remove vehicle from lift
NoteLower rack arms fully and remove them from under vehicle, Remove air suspension from "Jack Mode"
- Raise LH front window
- Close LH front door