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Home >> Mazda >> 2016 >> CX-9 Signature >> Repair and Diagnosis >> Suspension >> Rear Suspension System >> Rear CROSSMEMBER Removal/Installation (AWD) >> Notes

Rear CROSSMEMBER Removal/Installation (AWD): Notes

WARNING:
  1. Verify that the rear crossmember is securely supported by a jack. If the rear crossmember falls off, it can cause serious injury or death, and damage to the vehicle.
CAUTION:
  • Performing the following procedures could cause an open circuit in the rear ABS wheel-speed sensor wiring harness if it is pulled by mistake. Before servicing, disconnect the rear ABS wheel-speed sensor and set it aside so that the wiring harness will not be pulled by mistake.
  1. Align the rear crossmember component and rear upper arm and mark them.
    Fig 1: Aligning Rear Crossmember Component And Rear Upper Arm Mark
    G10947389Courtesy of MAZDA MOTORS CORP.
  2. Switch the ignition ON (engine off).
  3. Release the electric parking brake.
  4. Switch the ignition off.
  5. Disconnect the negative battery terminal. (Refer to NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  6. Remove the wheels and tires. (Refer to WHEEL AND TIRE REMOVAL/INSTALLATION .)
  7. Drain the differential oil. (Refer to DIFFERENTIAL OIL REPLACEMENT .)
  8. Disconnect the wiring harness clips and connectors installed to the rear crossmember.
    Fig 2: Locating Wiring Harness Clips
    G10947390Courtesy of MAZDA MOTORS CORP.
  9. Set the rear differential breather hose aside.
    Fig 3: Setting Rear Differential Breather Hose
    G10947391Courtesy of MAZDA MOTORS CORP.
  10. Remove the auto leveling sensor.
    Fig 4: Removing Auto Leveling Sensor
    G10947392Courtesy of MAZDA MOTORS CORP.
  11. Disconnect the rear ABS wheel-speed sensor wiring harness and the electric parking brake motor gear unit connector and set it aside so that it does not interfere with the servicing.
    Fig 5: Disconnecting Rear ABS Wheel-Speed Sensor Wiring Harness
    G10947393Courtesy of MAZDA MOTORS CORP.
  12. Remove the following parts:
    1. Floor under cover No. 2 (Refer to FLOOR UNDER COVER REMOVAL/INSTALLATION .)
    2. Floor under cover No. 1 (Refer to FLOOR UNDER COVER REMOVAL/INSTALLATION .)
    3. Brace bar
      Fig 6: Identifying Floor Under Cover Bolts
      G10947394Courtesy of MAZDA MOTORS CORP.
    4. Tunnel member
    5. Strut bar
    6. TWC (Refer to EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.5T] .)
    7. Propeller shaft (Refer to PROPELLER SHAFT REMOVAL/INSTALLATION .)
    8. Wheel hub component (Refer to WHEEL HUB COMPONENT REMOVAL/INSTALLATION (AWD) .)
    9. Dust cover (Refer to WHEEL HUB COMPONENT REMOVAL/INSTALLATION (AWD) .)
  13. Disconnect the rear stabilizer control link from the rear lower arm.
    Fig 7: Disconnecting Rear Stabilizer Control Link From Rear Lower Arm
    G10947395Courtesy of MAZDA MOTORS CORP.
  14. Disconnect the rear trailing link from the hub support. (Refer to REAR TRAILING LINK REMOVAL/INSTALLATION .)
  15. Remove the rear coil spring. (Refer to REAR COIL SPRING REMOVAL/INSTALLATION .)
  16. Disconnect the rear shock absorber from the hub support. (Refer to REAR SHOCK ABSORBER REMOVAL/INSTALLATION .)
  17. Disconnect the rear lateral link from the hub support. (Refer to REAR LATERAL LINK REMOVAL/INSTALLATION .)
  18. Disconnect the rear upper arm from the hub support. (Refer to REAR UPPER ARM REMOVAL/INSTALLATION (AWD) .)
  19. Remove the following parts:
    1. Hub support (Refer to WHEEL HUB COMPONENT REMOVAL/INSTALLATION (AWD) .)
    2. Rear drive shaft (Refer to REAR DRIVE SHAFT REMOVAL/INSTALLATION .)
    3. Rear lateral link (Refer to REAR LATERAL LINK REMOVAL/INSTALLATION .)
    4. Rear lower arm (Refer to REAR LOWER ARM REMOVAL/INSTALLATION .)
  20. Remove in the order indicated in the table.
  21. Install in the reverse order of removal. (Refer to SUSPENSION LINKS INSTALLATION NOTE .)
  22. Add differential oil. (Refer to DIFFERENTIAL OIL REPLACEMENT .)
  23. Inspect the wheel alignment and adjust it if necessary. (Refer to REAR WHEEL ALIGNMENT .)
  24. Perform the headlight auto leveling system initial setting. (Refer to HEADLIGHT AUTO LEVELING SYSTEM INITIALIZATION .)
    Fig 8: Rear Crossmember Components With Torque Specification
    G10947396Courtesy of MAZDA MOTORS CORP.
    COMPONENT DESCRIPTION

    1 Rear crossmember component
    (See Rear Crossmember Component Removal Note .)
    (See Rear Crossmember Component Installation Note .)
    2 Rear stabilizer component
    3 Rear upper arm
    (See REAR UPPER ARM REMOVAL/INSTALLATION [AWD] .)
    4 Rear crossmember mudguard
    5 Front differential mounting rubber
    (See REAR DIFFERENTIAL MOUNT RUBBER REMOVAL/INSTALLATION .)
    6 Rear differential
    (See REAR DIFFERENTIAL REMOVAL/INSTALLATION .)
    7 Rear crossmember
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