Exploded View

2011 Acura RDX 2.3 TB1SECTION Exploded View
NOTE: The illustration shows the with SH-AWD; the without SH-AWD is similar.

Bolt Tightening Torque 

6x 1.0 mm: 12 N.m (1.2 kgf.m, 8.7 lbf.ft) 

8 x 1.25 mm: 18 N.m (1.8 kgf.m, 13 lbf.ft) 

Fig 1: Exploded View Of Transmission
G08051377Courtesy of AMERICAN HONDA MOTOR CO., INC.

Special Tools Required 

Mainshaft Holder 07GAB-PF50101

  1. Make sure that the ATF magnet is cleaned and installed in the torque converter housing. Clean and install the ATF magnet, if necessary.
  2. Install the main separator plate and the two dowel pins on the torque converter housing. Then install the ATF pump drive gear (A), the driven gear (B), and the ATF pump driven gear shaft (C). Install the ATF pump driven gear with its grooved and chamfered side facing down.
    Fig 2: Identifying ATF Pump Drive Gear, Driven Gear And Driven Gear Shaft
    G08051378Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. Install the torque converter check valve spring and the valve in the torque converter housing.
  4. Install the main valve body (seven 6 mm bolts and three 8 mm bolts). Make sure the ATF pump drive gear (A) rotates smoothly in the normal operating direction, and the ATF pump driven gear shaft (B) moves smoothly in the axial and normal operating direction.
    Fig 3: Rotating ATF Pump Drive Gear
    G08051379Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. If the ATF pump drive gear and the ATF pump driven gear shaft do not move smoothly, loosen the main valve body bolts. Realign the ATF pump driven gear shaft, and retighten the bolts to the specified torques, then recheck. Failure to align the ATF pump driven gear shaft correctly will result in a seized ATF pump drive gear or ATF pump driven gear shaft.
  6. Install the lubrication check valve in the main valve body, in the direction shown in the exploded view.
  7. Install the secondary separator plate and the two dowel pins on the main valve body, and install the secondary valve body (one bolt).
  8. Install the two check balls in the secondary valve body.
  9. Install the accumulator separator plate and the two dowel pins on the secondary valve body.
  10. Position the detent arm on the accumulator separator plate, and install the detent arm shaft into the detent arm through the separator plates to the main valve body.
  11. Install the 8 x 62 mm ATF feed pipe in the main valve body, and install the accumulator body (11 bolts).
  12. Install the regulator separator plate and the two dowel pins on the main valve body.
  13. Install the stator shaft with a new O-ring, and install the regulator valve body (seven bolts).
  14. Install the stator shaft stop in the main valve body.
  15. Install the ATF strainer with a new O-ring (one bolt).
  16. Install the ATF passage pipe (one bolt) in the torque converter housing.
  17. Install the intermediary shaft (A) with new sealing rings into the main valve body, and install the 26.5 mm washer (B) on the top of the intermediary shaft.
    Fig 4: Intermediary Shaft, Washer, Transfer Output Shaft And Thrust Shim With Torque Specifications
    G08051380Courtesy of AMERICAN HONDA MOTOR CO., INC.
  18. With SH-AWD: Install the transfer output shaft (C) in the torque converter housing, and install the thrust shim (D) on the top of the transfer output shaft.
  19. Install the differential assembly (E) in the torque converter housing.
  20. Install the baffle plate (F), and make sure the differential is clear of the baffle plate.
  21. Install the baffle plate (G), and make sure the intermediary shaft is clear of the baffle plate.
  22. Install the selector control shaft and the park lever link (H).
  23. Assemble the mainshaft, the countershaft, and the secondary shaft.
    NOTE: Install new sealing rings on the mainshaft and the secondary shaft.
  24. Install the thrust needle bearing (A) on the secondary shaft roller bearing in the torque converter housing.
    Fig 5: Identifying Thrust Needle Bearing, Shift Fork, Shaft And Mainshaft
    G08051381Courtesy of AMERICAN HONDA MOTOR CO., INC.
  25. Turn the shift fork shaft (B) so the large chamfered hole is facing the fork bolt hole of the shift fork.
  26. Engage the shift fork (C) with the reverse selector on the countershaft, and join the mainshaft (D), the countershaft (E), and the secondary shaft (F), then install them in the torque converter housing and shift fork on the shift fork shaft.
  27. Secure the shift fork (A) to the shift fork shaft with the lock bolt and a new lock washer (B), then bend the lock tab of the lock washer against the bolt head.
    Fig 6: Shift Fork, Lock Washer And Bolts With Torque Specifications
    G08051382Courtesy of AMERICAN HONDA MOTOR CO., INC.
  28. Install the park pawl shaft (A), the pawl spring (B), the park pawl (C), and the park pawl stop (D).
    Fig 7: Identifying Park Pawl Shaft, Pawl Spring And Stop
    G08051383Courtesy of AMERICAN HONDA MOTOR CO., INC.
  29. Align the control lever pin (A) with the manual valve guide (B).
    Fig 8: Aligning Control Lever Pin
    G08051384Courtesy of AMERICAN HONDA MOTOR CO., INC.
  30. Hook the detent arm spring (A) to the detent arm (B).
    Fig 9: Hooking Detent Arm Spring
    G08051385Courtesy of AMERICAN HONDA MOTOR CO., INC.
  31. Install the 8 x 85 mm ATF feed pipe (A), the 8 x 151.5 mm pipes (B), and the 8x40 mm pipe (C) in the accumulator body.
    Fig 10: Identifying ATF Feed Pipes
    G08051386Courtesy of AMERICAN HONDA MOTOR CO., INC.
  32. Install the 8 x 57.5 mm ATF feed pipe (A) and the 10 x 123 mm pipe (B) in the torque converter housing.
    Fig 11: Identifying ATF Feed Pipes (8 x 57.5 mm)
    G08051387Courtesy of AMERICAN HONDA MOTOR CO., INC.
  33. Install the two dowel pins (A) and a new gasket (B) on the torque converter housing (C).
    Fig 12: Identifying Dowel Pins, Gasket And Torque Converter Housing
    G08051388Courtesy of AMERICAN HONDA MOTOR CO., INC.
  34. Place the transmission housing (D) on the torque converter housing.
  35. Wrap a screwdriver tip with tape to prevent damage to the reverse idler gear teeth. Engage the reverse idler gear with the reverse gears by rotating the idler gear with the screwdriver.
    Fig 13: Rotating Idler Gear
    G08051389Courtesy of AMERICAN HONDA MOTOR CO., INC.
  36. While expanding the snap ring of the countershaft bearing using snap ring pliers, install the transmission housing onto the bearing part-way. Then release the snap ring pliers, and push down on the transmission housing until it bottoms and the snap ring snaps into place in the transmission housing snap ring groove.
    Fig 14: Expanding Snap Ring
    G08051390Courtesy of AMERICAN HONDA MOTOR CO., INC.
  37. Install the transmission housing mounting bolts (A) (21 bolts) along with the transmission hanger (B) and the transmission ground terminal bracket (C), and tighten the bolts in at least two steps in a crisscross pattern to 44 N.m (4.5 kgf.m, 33 lbf.ft).
    Fig 15: Transmission Housing Mounting Bolts With Torque Specifications
    G08051391Courtesy of AMERICAN HONDA MOTOR CO., INC.
  38. Install and tighten the two mounting bolts (D) to 39 N.m (4.0 kgf.m, 29 lbf.ft). Keep the mounting bolts free of grease or oil.
  39. Install and tighten the 12x1.25 mm bolt (E) to 64 N.m (6.5 kgf.m, 47 lbf.ft).
  40. Install the mainshaft holder onto the mainshaft.
    Fig 16: Identifying Mainshaft Holder
    G08051392Courtesy of AMERICAN HONDA MOTOR CO., INC.
  41. Install a new splined washer (A) with the marked side (B) up over the mainshaft (C), and apply ATF to the surfaces of the splined washer and old locknut (D).
    Fig 17: Identifying Splined Washer, Mainshaft And Locknut
    G08051393Courtesy of AMERICAN HONDA MOTOR CO., INC.
  42. Install the old locknut, and tighten it to seat the lock washer to 178 N.m (18.2 kgf.m, 132 lbf.ft), then remove the old locknut.
  43. Install a new locknut and tighten it to 178 N.m (18.2 kgf.m, 132 lbf.ft), then stake the locknut to a depth (A) of 0.7-1.3 mm (0.03-0.05 in) using a 3.5 mm punch (B).
    Fig 18: Installing Locknut
    G08051394Courtesy of AMERICAN HONDA MOTOR CO., INC.
  44. Install the end cover (A), the dowel pins (B), and a new O-ring (C).
    Fig 19: End Cover, Dowel Pins, O-Ring And Mounting Bolts With Torque Specifications
    G08051395Courtesy of AMERICAN HONDA MOTOR CO., INC.
  45. Install the snap ring cap (D) with a new O-ring (E).
  46. Apply thread lock sealant to the threads of the sealing plug (F), and install the sealing plug and a new sealing washer (G).
  47. Install a new O-ring (E) on the shift solenoid wire harness (F).
    Fig 20: Snap Ring Cap, O-Ring, Shift Solenoid Wire Harness, Sealing Plug And Sealing Washer With Torque Specifications
    G08051396Courtesy of AMERICAN HONDA MOTOR CO., INC.
  48. Route the shift solenoid wire harness through the transmission housing, and install the shift solenoid wire harness.
  49. Connect the shift solenoid valve connectors to the shift solenoid valves:
    • YEL wire connector to shift solenoid valve A.
    • RED wire connector to shift solenoid valve B.
    • GRN wire connector to shift solenoid valve C.
    • ORN wire connector to shift solenoid valve D.
  50. Secure the shift solenoid wire harness with the bolt on the transmission housing.
  51. Install the shift solenoid valve cover (A) with the two dowel pins (B) and a new gasket (C), and secure it with the seven bolts.
    Fig 21: Shift Solenoid Valve Cover, Dowel Pins And Gasket With Torque Specifications
    G08051397Courtesy of AMERICAN HONDA MOTOR CO., INC.
  52. Place a new gasket (C) on the shift solenoid valve cover, then install the 8 x 102.8 mm ATF feed pipe (D) and the 8 x 55.3 mm pipes (E) with their filter side into the transmission housing.
    Fig 22: Gasket, ATF Feed Pipe, O-Ring And A/T Clutch Pressure Control Solenoid Valves A And B With Torque Specifications
    G08051398Courtesy of AMERICAN HONDA MOTOR CO., INC.
  53. Install new O-rings (F) over the ATF feed pipes, and install A/T clutch pressure control solenoid valves A and B.
  54. Install the 8 x 53 mm ATF joint pipe (A) with the filter side into its mounting hole (B).
    Fig 23: Identifying ATF Joint Pipe And Mounting Hole
    G08051399Courtesy of AMERICAN HONDA MOTOR CO., INC.
  55. Check the height (A) of the 8 x 53 mm ATF joint pipe (B) between the top (C) of the pipe and the solenoid valve body mounting surface (D). The height is about 7 mm (0.3 in). If the height is over 7 mm (0.3 in), install the pipe securely until it stops the accumulator body.
    Fig 24: Identifying Height Of ATF Joint Pipe Between Top Of Pipe And Solenoid Valve Body Mounting Surface
    G08051400Courtesy of AMERICAN HONDA MOTOR CO., INC.
  56. Install a new gasket (A) on the transmission housing. Install the 8 x 36 mm ATF pipe (B) with the filter end in the transmission housing, and install the 8 x 25.2 mm ATF pipe (D).
    Fig 25: Gasket, ATF Pipes And Mounting Bolts With Torque Specifications
    G08051401Courtesy of AMERICAN HONDA MOTOR CO., INC.
  57. Install new O-rings (E) over the ATF joint pipes.
  58. Install A/T clutch pressure control solenoid valve C.
  59. With a 6.0 mm wrench, turn the selector control shaft fully counterclockwise (viewed from shaft end) to the P position. Turn the selector control shaft clockwise two clicks to the N position.
    Fig 26: Turning Selector Control Shaft
    G08051402Courtesy of AMERICAN HONDA MOTOR CO., INC.
  60. Set the transmission range switch (A) to the N position. The transmission range switch clicks in the N position, and the selector control shaft hole (6) aligns with the N positioning line (C).
    Fig 27: Identifying Transmission Range Switch In N Position
    G08051403Courtesy of AMERICAN HONDA MOTOR CO., INC.
  61. Install the transmission range switch gently over the selector control shaft (D), and install the bolts loosely.
  62. Install a new lock washer (A) over the selector control shaft (B) by aligning the indicator tab (C) of the lock washer with the N positioning line (D) on the transmission range switch (E), and install the locknut (F).
    Fig 28: Identifying Indicator Tab Of Lock Washer With N Positioning Line
    G08051404Courtesy of AMERICAN HONDA MOTOR CO., INC.
  63. Push the locknut (A) against the transmission housing to seat the transmission range switch into the selector control shaft (B), and tighten the locknut to 17 N.m (1.7 kgf.m, 13 lbf.ft) while holding the selector control shaft with a 6 mm wrench (C). Bend the lock tabs (D) against the locknut.
    Fig 29: Tightening Locknut With Torque Specifications
    G08051405Courtesy of AMERICAN HONDA MOTOR CO., INC.
  64. Tighten the bolts (E) securing the transmission range switch to 12 N.m (1.2 kgf.m, 8.7 lbf.ft).
  65. Install the selector control lever (A), the spring washer (B), a new lock washer (C), and the locknut (D) on the selector control shaft (E). Bend the lock tab of the lock washer against the locknut.
    Fig 30: Selector Control Lever, Spring Washer, Locknut And Selector Control Shaft With Torque Specifications
    G08051406Courtesy of AMERICAN HONDA MOTOR CO., INC.
  66. Install a new O-ring (A) on the input shaft (mainshaft) speed sensor (B), and install the input shaft (mainshaft) speed sensor.
    Fig 31: O-Ring And Input Shaft (Mainshaft) Speed Sensor With Torque Specifications
    G08051407Courtesy of AMERICAN HONDA MOTOR CO., INC.
  67. Install a new O-ring (C) on the output shaft (countershaft) speed sensor (D), and install the output shaft (countershaft) speed sensor and the sensor washer (with SH-AWD) (E).
  68. Install the 4th clutch transmission fluid pressure switch (A) with a new sealing washer (B). Tighten the switch by gripping the metal part.
    Fig 32: 4th Clutch Transmission Fluid Pressure Switch And Sealing Washer With Torque Specifications
    G08051408Courtesy of AMERICAN HONDA MOTOR CO., INC.
  69. Install transmission fluid pressure switch B (3rd clutch) (A) with a new sealing washer (B). Tighten the switch by gripping the metal part.
    Fig 33: Transmission Fluid Pressure Switch B (3rd Clutch), Sealing Washer And Line Bolts With Torque Specifications
    G08051409Courtesy of AMERICAN HONDA MOTOR CO., INC.
  70. Install the ATF cooler lines (C) with new sealing washers (D) and the line bolts (E).
  71. Install the connector bracket (F), and secure the ATF lines with the 6.0 mm bolt (G) on the transmission housing. Tighten the bolts to 12 N.m (1.2 kgf.m, 8.7 lbf.ft).
  72. Install the ATF temperature sensor (H) with a new O-ring (I). Install the connector on the connector bracket and the harness clamp on the bracket.
  73. Install transmission fluid pressure switch A (2nd clutch) (A) with a new sealing washer (B). Tighten the switch by gripping the metal part.
    Fig 34: Transmission Fluid Pressure Switch A (2nd Clutch) And Sealing Washer With Torque Specifications
    G08051410Courtesy of AMERICAN HONDA MOTOR CO., INC.
  74. Install the ATF dipstick tube (A) with a new O-ring (B).
    Fig 35: ATF Dipstick Tube And O-Ring With Torque Specifications
    G08051411Courtesy of AMERICAN HONDA MOTOR CO., INC.
  75. Install the ATF dipstick (C) in its tube.
RENDER: 1.0x

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
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  • You are missing required tools, torque specs, or safe lifting equipment.
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