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Rear CROSSMEMBER Removal/Installation (AWD): Notes

WARNING: This page is about a different car, the 2017 Mazda CX-9. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
  • 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: Rear Crossmember Component And Rear Upper Arm Alignment Mark
    G11439021Courtesy 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. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  6. Remove the wheels and tires. (See WHEEL AND TIRE REMOVAL/INSTALLATION .)
  7. Drain the differential oil. (See DIFFERENTIAL OIL REPLACEMENT .)
  8. Disconnect the wiring harness clips and connectors installed to the rear crossmember.
    Fig 2: Locating Wiring Harness Clips And Connectors
    G11439022Courtesy of MAZDA MOTORS CORP.
  9. Set the rear differential breather hose aside.
    Fig 3: Locating Rear Differential Breather Hose Clips
    G11439023Courtesy of MAZDA MOTORS CORP.
  10. Remove the auto leveling sensor.
    Fig 4: Auto Leveling Sensor And Bolts With Torque Specifications
    G11439024Courtesy 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: Rear ABS Wheel-Speed Sensor, Electric Parking Brake Motor Gear Unit Connector And Bolts With Torque Specifications
    G11439025Courtesy of MAZDA MOTORS CORP.
  12. Remove the following parts:
    1. Floor under cover No. 2 (See FLOOR UNDER COVER REMOVAL/INSTALLATION .)
    2. Floor under cover No. 1 (See FLOOR UNDER COVER REMOVAL/INSTALLATION .)
    3. Brace bar
      Fig 6: Tunnel Member, Brace Bar, Strut Bar And Bolts With Torque Specifications
      G11439026Courtesy of MAZDA MOTORS CORP.
    4. Tunnel member
    5. Strut bar
    6. TWC (See EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.5T] .)
    7. Propeller shaft (See PROPELLER SHAFT REMOVAL/INSTALLATION .)
    8. Wheel hub component (See WHEEL HUB COMPONENT REMOVAL/INSTALLATION (AWD) .)
    9. Dust cover (See WHEEL HUB COMPONENT REMOVAL/INSTALLATION (AWD) .)
  13. Disconnect the rear stabilizer control link from the rear lower arm.
    Fig 7: Rear Stabilizer Control Link With Nut Torque Specifications
    G11439027Courtesy of MAZDA MOTORS CORP.
  14. Disconnect the rear trailing link from the hub support. (See REAR TRAILING LINK REMOVAL/INSTALLATION .)
  15. Remove the rear coil spring. (See REAR COIL SPRING REMOVAL/INSTALLATION .)
  16. Disconnect the rear shock absorber from the hub support. (See REAR SHOCK ABSORBER REMOVAL/INSTALLATION .)
  17. Disconnect the rear lateral link from the hub support. (See REAR LATERAL LINK REMOVAL/INSTALLATION .)
  18. Disconnect the rear upper arm from the hub support. (See REAR UPPER ARM REMOVAL/INSTALLATION (AWD) .)
  19. Remove the following parts:
    1. Hub support (See WHEEL HUB COMPONENT REMOVAL/INSTALLATION (AWD) .)
    2. Rear drive shaft (See REAR DRIVE SHAFT REMOVAL/INSTALLATION .)
    3. Rear lateral link (See REAR LATERAL LINK REMOVAL/INSTALLATION .)
    4. Rear lower arm (See REAR LOWER ARM REMOVAL/INSTALLATION .)
  20. Remove in the order indicated in the table.
  21. Install in the reverse order of removal. (See SUSPENSION LINKS INSTALLATION NOTE .)
  22. Add differential oil. (See DIFFERENTIAL OIL REPLACEMENT .)
  23. Inspect the wheel alignment and adjust it if necessary. (See REAR WHEEL ALIGNMENT .)
  24. Perform the headlight auto leveling system initial setting. (See HEADLIGHT AUTO LEVELING SYSTEM INITIALIZATION .)
Fig 8: Rear Crossmember Components With Torque Specifications
G11439028Courtesy 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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