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Home >> Mitsubishi >> 2010 >> Lancer ES, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Twin Clutch-SPORTRONIC Shift Transmission On-Vehicle Service & Diagnosis -- Lancer) >> On-Vehicle Service >> ACD Bleeding

ACD Bleeding

WARNING: This page is about a different variant/trim than selected.
CAUTION: At low temperature the fluid viscosity is so high that air bleeding becomes degenerated. Air bleeding should be done at normal temperatures {10 to 30°C (50 to 86°F)}.
  1. Raise the vehicle.
  2. Remove the engine room under cover front B assembly. (Refer to UNDER COVER .)
  3. Remove the bleeder screw cap of the transfer, then connect the vinyl hose.
    CAUTION: Before connecting or disconnecting scan tool, always turn the ignition switch to the LOCK (OFF) position.
  4. Connect scan tool to the data link connector. (Refer to DIAGNOSIS <ACTIVE CENTER DIFFERENTIAL (ACD)>  .)
  5. Position the steering wheel in a straight ahead direction.
  6. Turn the ignition switch to the "ON" position.
    Fig 1: Identifying Bleeder Screw And Engine Oil Pan
    G06665633Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  7. Perform the actuator test (item No. 01) of scan tool to forcibly activate the hydraulic unit.
    NOTE:
    • The forced activation (item No. 01: Air bleeding mode) is continued for 5 minutes, then it will be cancelled automatically. Also, using the clear key on the scan tool, the activation can be forcibly cancelled.
    • When the hydraulic unit functions are stopped due to the fail-safe, the forced activation cannot be performed.
  8. From the straight-ahead position, gradually rotate the steering wheel to the right or left. Loosen the bleeder screw, and check that the air is bled with fluid.
    CAUTION:
    • Keep the fluid level above the oil filter while air-bleeding. If you fail to do so, an "air layer" will be present below the oil filter. This can cause the fluid not to be added below the oil filter.
    • If the fluid level should have decreased below the oil filter, squeeze and release the feed hose so that the fluid should be added below the oil filter.
  9. After bleeding the air, tighten the bleeder screw.
  10. Repeat Steps  7 and  8 for two to three times. After checking that air mixing is eliminated, tighten the bleeder screw to the specified torque.
    Fig 2: Identifying Oil Filter, Air And Fluid
    G06665634Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

    Tightening torque: 5.0 ± 1.0 N.m (44 ± 9 in-lb) 

    CAUTION: If the air bleeding is insufficient, the noise from the hydraulic unit occurs, which may deteriorate the pump durability.
  11. After the air bleeding is complete, check the fluid level. (Refer to ACD CONTROL FLUID CHECK  ).
  12. Install the engine room under cover front B assembly. (Refer to UNDER COVER .)
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