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Home >> Nissan-Datsun >> 2012 >> Sentra SE-R >> Repair and Diagnosis >> Transmission >> Automatic Transmission (CVT) >> Service Information >> On-Vehicle Service >> Control Valve >> Installation
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Control Valve: Installation

  1. Install the lip seal (1) to the transaxle case.
    CAUTION: Do not reuse lip seal.
    Fig 1: Identifying Lip Seal
    G08180840Courtesy of NISSAN NORTH AMERICA, INC.
  2. Install the CVT unit connector (A) to the transaxle case.
    CAUTION: Connect the CVT unit connector with the stopper facing up, and then press in until it clicks.
    Fig 2: Identifying CVT Unit Connector
    G05866300Courtesy of NISSAN NORTH AMERICA, INC.
  3. Press in the ratio control valve (B) in the direction of the arrow in the figure below, and then secure the linkage in the position shown below with the suitable tool (A) from the back of control valve through the hole to hold in place.
  4. Check that one end of linkage engages with the step motor end (C) and that the linkage is in the direction shown below.
    5. Fig 3: Positioning Ratio Control Valve Using Suitable Tool
    G05866304Courtesy of NISSAN NORTH AMERICA, INC.
  5. Install the control valve to the transaxle case.
    CAUTION:
    • Never drop the suitable tool. If it is dropped, repeat the installation procedure from step 3.
    • Never pinch the harness into between the control valve and the transaxle case.
  6. Secure the control valve using the control valve bolts (A) and (B).
    Fig 4: Identifying Control Valve Bolts
    G08180843Courtesy of NISSAN NORTH AMERICA, INC.
    Bolt Bolt length (mm) Number of bolts
    A 54 10
    B 44 1
  7. Pull the suitable tool out.
  8. Connect the connectors (A) and (B).
    Fig 5: Identifying Connectors And Clips
    G08180844Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:
    • Never pinch the harness into between the control valve and the transaxle case.
    • Securely insert the connector until it clicks and locks.
  9. Install the bracket (1).
    Fig 6: Identifying Oil Strainer Bracket And Bolts
    G08180845Courtesy of NISSAN NORTH AMERICA, INC.
  10. Install O-ring to oil strainer assembly.
    CAUTION:
    • Do not reuse O-ring.
    • Apply CVT fluid NS-2 to O-ring.
  11. Install the oil strainer assembly (1) using the oil strainer assembly bolts (A) and (B).
    Fig 7: Identifying Oil Strainer Assembly And Mounting Bolts
    G08180846Courtesy of NISSAN NORTH AMERICA, INC.
    Bolt Bolt length (mm) Number of bolts
    A 12 2
    B 44 1
    NOTE: Remove the bracket and adjust the position again if the bolt hole positions are not aligned.
  12. Install the collar to the manual shaft.
    CAUTION: Never drop the collar.
  13. Install the manual plate (1) while aligning with the groove (A) of the manual shaft.
    CAUTION: Assemble the manual plate while aligning its end with the cutout (→ ) of the manual valve.
    Fig 8: Identifying Manual Shaft Grooves, Manual Plate, Washer And Lock Nut
    G08180847Courtesy of NISSAN NORTH AMERICA, INC.
  14. Install the washer (2) and the lock-nut (3), and then tighten to the specified torque.
  15. Install the snap ring (1) to the CVT unit connector (A).
  16. Connect the CVT unit connector. Refer to "REMOVAL AND INSTALLATION PROCEDURE FOR CVT UNIT CONNECTOR ".
  17. Install the magnets while aligning them with the convex side of oil pan.
    CAUTION: Completely eliminate the iron powder from the magnet mounting area of oil pan and the magnet.
  18. Install the oil pan to the transaxle case with the following procedure.
    Fig 9: Identifying CVT Unit Connector And Snap Ring
    G05866293Courtesy of NISSAN NORTH AMERICA, INC.
    1. Install the oil pan gasket to the oil pan.
      CAUTION:
      • Completely wipe out any moisture, oil, and old gasket from the oil pan gasket mating surface and bolt hole of oil pan and transaxle case.
      • Never reuse oil pan gasket.
    2. Install the oil pan assembly to the transaxle case, and then temporarily tighten the oil pan bolt.
      CAUTION: Do not reuse oil pan bolts.
    3. Tighten the oil pan bolts in the order shown below to the specified torque.
    4. Tighten the oil pan bolts again clockwise from (1) shown below to the specified torque.
    Fig 10: Identifying Oil Pan Bolts Tightening Sequence
    G05866310Courtesy of NISSAN NORTH AMERICA, INC.
  19. Install drain plug gasket to drain plug.
    CAUTION: Do not reuse drain plug gasket.
  20. Install drain plug to oil pan.
  21. Fill CVT fluid from CVT fluid charging pipe to the specified level. Refer to "CHANGING CVT FLUID ".

    CVT fluid type:  Refer to "GENERAL SPECIFICATION ".

    Fluid capacity:  Refer to "GENERAL SPECIFICATION ".

    CAUTION:
    • Use only Genuine NISSAN CVT Fluid NS-2. Never mix with other fluid.
    • Using CVT fluid other than Genuine NISSAN CVT Fluid NS-2 will deteriorate in driveability and CVT durability, and may damage the CVT, which is not covered by the warranty.
    • When filling CVT fluid, take care not to scatter heat generating parts such as exhaust.
    • Sufficiently shake the container of CVT fluid before using.
    • Delete CVT fluid deterioration date with CONSULT after changing CVT fluid. Refer to "CONSULT FUNCTION (TRANSMISSION) ".
  22. Connect battery cable to negative terminal. Refer to , "REMOVAL AND INSTALLATION (MR20DE BATTERY) " or , "REMOVAL AND INSTALLATION (QR25DE BATTERY) ".
  23. With the engine warmed up, drive the vehicle in an urban area.
    NOTE: When ambient temperature is 20°C (68°F), it takes about 10 minutes for the CVT fluid to warm up to 50° to 80°C (122° to 176°F).
  24. Check CVT fluid level and condition. Refer to "CHECKING CVT FLUID ".
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