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Home >> Tesla >> 2024 >> Model 3 Performance >> Repair and Diagnosis (Single Page) >> Drivelines & Axles >> Differentials & Drive Axles >> Rear Drive Unit -- Model 3 >> Rear Drive Inverter >> Rear Drive Inverter - Assembly, Drive Inverter, 3DU, 810A, SIC, Rear - Remove And Replace >> Remove

Rear Drive Inverter - Assembly, Drive Inverter, 3DU, 810A, SIC, Rear - Remove And Replace: Remove

  1. Raise and support the vehicle. See RAISE VEHICLE - 2 STANDS .
  2. Open all doors and lower all windows.
  3. Move the LH and RH front seats forward.
  4. Locally connect a laptop with Toolbox 3 to the vehicle. See TOOLBOX 3 - CONNECT AND DISCONNECT .
  5. Upon successful connection, Service Mode Plus will be enabled, and the "Service Mode Plus" watermark will appear on the touchscreen.
    G16604700Courtesy of TESLA, INC.
  6. Access High Voltage System routines using the UI.
    NOTE: Select Service mode plus > High Voltage.
    G16604701Courtesy of TESLA, INC.
  7. Select "Procedures" through UI.
    G16604702Courtesy of TESLA, INC.
  8. Select "REAR Drive INVERTER Replacement" through UI.
    G16604703Courtesy of TESLA, INC.
    G16604704Courtesy of TESLA, INC.
  9. Select "Store Bootloader Data" through UI.
    G16604705Courtesy of TESLA, INC.
  10. Select "Run" through UI to Store Bootloader Data.
    NOTE: Allow routine to complete, ensure routine is successful, then select "close" through UI.
    G16604706Courtesy of TESLA, INC.
    G16604707Courtesy of TESLA, INC.
  11. Select "Store Application Data" through UI.
    G16604708Courtesy of TESLA, INC.
  12. Select "Run" through UI to Store Application Data.
    NOTE: Allow routine to complete, ensure routine is successful, then select "close" through UI.
    G16604709Courtesy of TESLA, INC.
    G16604710Courtesy of TESLA, INC.
  13. Select "Start Fluid Fill/Drain" through UI.
    G16604711Courtesy of TESLA, INC.
  14. Select "Run" through UI to Start Fluid Fill/Drain.
    NOTE: Allow routine to complete, ensure routine is successful, then select "close" through UI.
    G16604712Courtesy of TESLA, INC.
    G16604713Courtesy of TESLA, INC.
  15. Perform Vehicle HV Disablement Procedure. See VEHICLE HV DISABLEMENT PROCEDURE .
  16. Remove both rear wheels. See WHEEL ASSEMBLY - REMOVE AND INSTALL .
  17. Open trunk from exterior switch.
    G16604714Courtesy of TESLA, INC.
    G16604715Courtesy of TESLA, INC.
  18. Remove LH trough trim.
    NOTE: 3x clips, 1x bolt, T20, 1.2 N.m.
    G16604716Courtesy of TESLA, INC.
    G16604717Courtesy of TESLA, INC.
    G16604718Courtesy of TESLA, INC.
  19. Remove RH trough trim.
    NOTE: 3x clips, 1x bolt, T20, 1.2 N.m.
    G16604719Courtesy of TESLA, INC.
    G16604720Courtesy of TESLA, INC.
    G16604721Courtesy of TESLA, INC.
  20. Remove bolt securing LH corner of rear fascia to body.
    NOTE: 1x bolt, 10 mm, 4 N.m.
    G16604722Courtesy of TESLA, INC.
  21. Remove bolt securing RH corner of rear fascia to body.
    NOTE: 1x bolt, 10 mm, 4 N.m.
    G16604723Courtesy of TESLA, INC.
  22. 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 the side, Verify doors are clear of surrounding objects.
    G16604724Courtesy of TESLA, INC.
    G16604725Courtesy of TESLA, INC.
  23. Remove LH and RH clips securing rear aero shield to wheel house liner.
    NOTE: 2x clips.
    G16604726Courtesy of TESLA, INC.
    G16604727Courtesy of TESLA, INC.
  24. Remove rear aero shield.
    NOTE: 11x bolts, 10 mm, 5 N.m.
    G16604728Courtesy of TESLA, INC.
    G16604729Courtesy of TESLA, INC.
  25. Remove LH rear suspension cover.
    NOTE: 1x bolt, 10 mm, 6 N.m, 2x tabs.
    G16604730Courtesy of TESLA, INC.
  26. Remove RH rear suspension cover.
    NOTE: 1x bolt, 10 mm, 6 N.m, 2x tabs.
    G16604731Courtesy of TESLA, INC.
  27. Remove lower clips securing LH rear wheel liner.
    NOTE: 3x push clips.
    G16604732Courtesy of TESLA, INC.
  28. Remove lower clips securing RH rear wheel liner.
    NOTE: 3x push clips.
    G16604733Courtesy of TESLA, INC.
  29. Remove bolts securing the rear diffuser to body.
    NOTE: 4x bolts, 10 mm, 4 N.m, 2x fastener covers.
    G16604734Courtesy of TESLA, INC.
  30. Lower vehicle partially and set lift 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.
  31. Remove screw securing rear fascia to LH quarter panel.
    NOTE: 1x screw, T25, 2 N.m.
    G16604735Courtesy of TESLA, INC.
  32. Remove screw securing rear fascia to RH quarter panel.
    NOTE: 1x screw, T25, 2 N.m.
    G16604736Courtesy of TESLA, INC.
  33. Remove rear fascia and place on padded surface.
    NOTE: 2x connector, Recommend assistance.
    G16604737Courtesy of TESLA, INC.
    G16604738Courtesy of TESLA, INC.
    G16604739Courtesy of TESLA, INC.
    G16604740Courtesy of TESLA, INC.
    G16604741Courtesy of TESLA, INC.
    G16604742Courtesy of TESLA, INC.
  34. 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 the side, Verify doors are clear of surrounding objects.
    G16604743Courtesy of TESLA, INC.
    G16604744Courtesy of TESLA, INC.
  35. Disconnect RH side subframe harness connector.
    NOTE: 1x connector, Release locking tab.
    G16604745Courtesy of TESLA, INC.
    G16604746Courtesy of TESLA, INC.
  36. Remove RH side subframe harness clip from body.
    NOTE: 1x barrel clip.
    G16604747Courtesy of TESLA, INC.
  37. Remove nut securing RDU ground strap to vehicle.
    NOTE: 1x nut, 10 mm, 10 N.m, Located at LH rear wheel well area.
    G16604748Courtesy of TESLA, INC.
    G16604749Courtesy of TESLA, INC.
  38. Remove nut securing LH rear stabilizer bar end link to stabilizer bar.
    NOTE: 1x nyloc nut, 15 mm, 55 N.m, Break nut loose then counter-hold ball joint with 5 mm hex, Discard after removal.
    G16604750Courtesy of TESLA, INC.
  39. 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.
    G16604751Courtesy of TESLA, INC.
  40. Remove nut securing RH rear stabilizer bar end link to stabilizer bar.
    NOTE: 1x nyloc nut, 15 mm, 55 N.m, Break nut loose then counter-hold ball joint with 5 mm hex, Discard after removal.
    G16604752Courtesy of TESLA, INC.
  41. 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.
    G16604753Courtesy of TESLA, INC.
  42. Remove bolts securing rear stabilizer bar to subframe and remove assembly.
    NOTE: 4x patch bolts, 11 mm, 30 N.m, Discard after removal.
    G16604754Courtesy of TESLA, INC.
    G16604755Courtesy of TESLA, INC.
  43. Release clips securing coolant hoses to LH shear plate.
    NOTE: 2x fir tree clips.
    G16604756Courtesy of TESLA, INC.
  44. Release LH side hose clip from rear battery skid plate enclosure.
    NOTE: 1x fir tree clip.
    G16604757Courtesy of TESLA, INC.
  45. Release RH side hose clips from rear battery skid plate enclosure.
    NOTE: 2x fir tree clips.
    G16604758Courtesy of TESLA, INC.
  46. Release clips securing coolant hoses to RH shear plate.
    NOTE: 2x fir tree clips.
    G16604759Courtesy of TESLA, INC.
  47. Remove lower bolts securing HV battery rear skid plate enclosure.
    NOTE: 2x bolts, EP10, 13 N.m, Older vins may be equipped with additional fastener count.
    G16604760Courtesy of TESLA, INC.
  48. Remove upper nut securing HV battery rear skid plate enclosure.
    NOTE: 1x nut, 10 mm, 13 N.m, Fastener count may vary on older built vehicles.
    G16604761Courtesy of TESLA, INC.
  49. Remove upper bolts securing HV battery rear skid plate enclosure.
    NOTE: 4x bolts, 13 mm, 35 N.m.
    G16604762Courtesy of TESLA, INC.
  50. Remove HV battery rear skid plate enclosure.
    G16604763Courtesy of TESLA, INC.
  51. Position coolant drain container underneath LH rear of HV battery.
    G16604764Courtesy of TESLA, INC.
  52. Disconnect RDU inverter inlet tube from LH rear of HV battery.
    NOTE: 1x spring clip, Plug hose connections as needed, Coolant loss greater than 1 L will require vacuum fill.
    G16604765Courtesy of TESLA, INC.
    G16604766Courtesy of TESLA, INC.
  53. Position coolant drain container underneath LH RDU area.
    G16604767Courtesy of TESLA, INC.
  54. Disconnect RDU inverter inlet tube from fluid coupling.
    NOTE: 1x spring clip, 2x plugs, Plug the hose end and the fluid coupling.
    G16604768Courtesy of TESLA, INC.
    G16604769Courtesy of TESLA, INC.
    G16604770Courtesy of TESLA, INC.
  55. Release RDU inverter inlet tube from RDU HV cable harness.
    NOTE: 1x fir tree clip.
    G16604771Courtesy of TESLA, INC.
  56. Remove RDU inverter inlet hose from subframe.
    NOTE: Maneuver hose as needed to remove from between rear subframe and RDU HV cable harness, Remove plugs from both ends and allow coolant to fully drain if discarding.
    G16604772Courtesy of TESLA, INC.
    G16604773Courtesy of TESLA, INC.
  57. Remove coolant drain container from underneath vehicle.
  58. Remove bolt securing RDU HV cable bracket to RDU.
    NOTE: 1x bolt, 10 mm, 6 N.m.
    G16604774Courtesy of TESLA, INC.
  59. Remove nut securing RDU HV cable bracket to HV battery.
    NOTE: 1x nut, 10 mm, 10 N.m.
    G16604775Courtesy of TESLA, INC.
  60. 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.
    G16604776Courtesy of TESLA, INC.
    G16604777Courtesy of TESLA, INC.
    G16604778Courtesy of TESLA, INC.
  61. 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.
    G16604779Courtesy of TESLA, INC.
    G16604780Courtesy of TESLA, INC.
    G16604781Courtesy of TESLA, INC.
  62. Remove RDU HV harness.
    NOTE: Rotate and route cable between subframe, rear drive unit and battery.
    G16604782Courtesy of TESLA, INC.
    G16604783Courtesy of TESLA, INC.
    G16604784Courtesy of TESLA, INC.
  63. Place subframe lifting tool into position underneath rear subframe.
    G16604785Courtesy of TESLA, INC.
  64. Connect air supply to subframe lifting tool.
    G16604786Courtesy of TESLA, INC.
  65. 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.
    G16604787Courtesy of TESLA, INC.
    G16604788Courtesy of TESLA, INC.
    G16604789Courtesy of TESLA, INC.
    G16604790Courtesy of TESLA, INC.
  66. 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.
    G16604791Courtesy of TESLA, INC.
    G16604792Courtesy of TESLA, INC.
    G16604793Courtesy of TESLA, INC.
    G16604794Courtesy of TESLA, INC.
  67. Remove smaller fasteners securing LH shear plate.
    NOTE: 2x bolts, 13 mm, 35 N.m.
    G16604795Courtesy of TESLA, INC.
  68. Remove large bolt securing LH shear plate and subframe to body and remove shear plate.
    NOTE: 1x bolt, 21 mm, 130 N.m, Discard after removal.
    G16604796Courtesy of TESLA, INC.
  69. Remove smaller fasteners for RH shear plate.
    NOTE: 2x bolts, 13 mm, 35 N.m.
    G16604797Courtesy of TESLA, INC.
  70. Remove large bolt securing RH shear plate and subframe to body and remove shear plate.
    NOTE: 1x bolt, 21 mm, 130 N.m, Discard after removal.
    G16604798Courtesy of TESLA, INC.
  71. Remove LH rear bolt securing subframe to body.
    NOTE: 1x bolt, 21 mm, 165 N.m, Discard after removal.
    G16604799Courtesy of TESLA, INC.
  72. Remove RH rear bolt securing subframe to body.
    NOTE: 1x bolt, 21 mm, 165 N.m, Discard after removal.
    G16604800Courtesy of TESLA, INC.
  73. 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 3.25 in or 8.25 cm.
    G16604801Courtesy of TESLA, INC.
    G16604802Courtesy of TESLA, INC.
    G16604803Courtesy of TESLA, INC.
  74. Tilt subframe fixture forward.
    NOTE: Adjust the powertrain lift and tilt it forward in order to access motor mount fasteners.
    G16604804Courtesy of TESLA, INC.
    G16604805Courtesy of TESLA, INC.
  75. 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.
    G16604806Courtesy of TESLA, INC.
    G16604807Courtesy of TESLA, INC.
  76. Release RDU ground strap clip from subframe.
    NOTE: 1x clip
    G16604808Courtesy of TESLA, INC.
  77. Release inverter to cooler hose clip.
    NOTE: 1x clip
    G16604809Courtesy of TESLA, INC.
  78. Release RDU inverter to oil cooler hose.
    NOTE: 1x hose clip, Image zoomed in for clarity.
    G16604810Courtesy of TESLA, INC.
    G16604811Courtesy of TESLA, INC.
    G16604812Courtesy of TESLA, INC.
  79. Release RDU logic connection clip.
    NOTE: 1x clip.
    G16604813Courtesy of TESLA, INC.
  80. Release RDU logic connection.
    NOTE: 1x connector, Release locking tab then push the handle downward to release connector.
    G16604814Courtesy of TESLA, INC.
  81. Remove LH mount bolt securing drive unit to subframe.
    NOTE: 1x bolt, 18 mm, 80 N.m, Remove fastener, Use a pry to aid as needed, Do not damage drive unit casting.
    G16604815Courtesy of TESLA, INC.
    G16604816Courtesy of TESLA, INC.
    G16604817Courtesy of TESLA, INC.
    G16604818Courtesy of TESLA, INC.
  82. Remove the bolts for RDU LH mount assembly.
    NOTE: 3x bolts, E14, 35 N.m and 55 degrees, Break loose and remove fasteners.
    G16604819Courtesy of TESLA, INC.
    G16604820Courtesy of TESLA, INC.
  83. Remove LH mount assembly from between rear drive unit and subframe.
    NOTE: Maneuver upwards and remove.
    G16604821Courtesy of TESLA, INC.
    G16604822Courtesy of TESLA, INC.
    G16604823Courtesy of TESLA, INC.
  84. Put on ESD wrist strap and secure it to inverter housing.
    G16604824Courtesy of TESLA, INC.
  85. Remove label from phase cover.
    NOTE: Discard label after removal.
    G16604825Courtesy of TESLA, INC.
    G16604826Courtesy of TESLA, INC.
  86. Remove the bolts securing the RDU phase out cover.
    NOTE: 2x bolts, EP10, 14 N.m.
    G16604827Courtesy of TESLA, INC.
    G16604828Courtesy of TESLA, INC.
  87. Remove the phase out cover from RDU.
    NOTE: Use a plastic trim tool to aid in removal, If phase out cover or O-rings are damaged then replace with a new unit.
    G16604829Courtesy of TESLA, INC.
    G16604830Courtesy of TESLA, INC.
  88. Remove bolts securing the RDU 3 phase cable for inverter and motor.
    NOTE: 3x bolts, 10 mm, 11.5 N.m, Do not drop fasteners, Fasteners can be re-used.
    G16604831Courtesy of TESLA, INC.
  89. Remove bolts securing the RDU inverter to gearbox assembly.
    NOTE: 12x bolts, EP10, 12.5 N.m, Fasteners can be re-used.
    G16604832Courtesy of TESLA, INC.
    G16604833Courtesy of TESLA, INC.
    G16604834Courtesy of TESLA, INC.
  90. Remove the inverter from drive unit and drain coolant.
    NOTE: Inverter to be removed down between the drive unit and subframe, Gasket is one time use, Careful not to damage the PCBA during removal.
    G16604835Courtesy of TESLA, INC.
    G16604836Courtesy of TESLA, INC.
    G16604837Courtesy of TESLA, INC.
  91. Place drive inverter on ESD mat.
    NOTE: Carefully place inverter on ESD safe mat, Do not place inverter facing downwards on the circuit board as it is fragile.
    G16604838Courtesy of TESLA, INC.
  92. Remove ESD wrist strap from old inverter housing.
    NOTE: ESD Wrist Strap - 1080292-00-A.
    G16604839Courtesy of TESLA, INC.
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