LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2021 >> 3 Select, 4D Hatchback, AWD >> Repair and Diagnosis >> Transmission >> Transfer Case >> All Wheel Drive (AWD) System >> Coupling Component Removal/Installation (Us) >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Coupling Component Removal/Installation (Us): Notes

Oil and Chemical Type 

Sealant
Type: TB1217C or equivalent
CAUTION:
  • If the characteristic value of a new coupling component is not input to the PCM or the characteristic value is input incorrectly after replacing the coupling component, it could result in the following conditions.
    • The system does not operate normally.
    • A problem with durability of the coupling component occurs.
  • After replacing the coupling component, read out the characteristic value of a new coupling component and write it to the PCM. (See COUPLING COMPONENT CALIBRATION DATA WRITING .)
  • Read out the characteristic value of the coupling component from the label or mark shown in the figure.
G13175982Courtesy of MAZDA MOTORS CORP.
  1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
  2. Drain the rear differential oil into a container. (See DIFFERENTIAL OIL REPLACEMENT .)
  3. Remove the tunnel cover. (See EXHAUST SYSTEM REMOVAL/INSTALLATION [(VIN 7 & VIN L)] .) (See EXHAUST SYSTEM REMOVAL/INSTALLATION [(VIN M)] .) (See EXHAUST SYSTEM REMOVAL/INSTALLATION [(VIN Y) (US)] .)
  4. Remove the following parts. (See EXHAUST SYSTEM REMOVAL/INSTALLATION [(VIN 7 & VIN L)] .) (See EXHAUST SYSTEM REMOVAL/INSTALLATION [(VIN M)] .) (See EXHAUST SYSTEM REMOVAL/INSTALLATION [(VIN Y) (US)] .)
    1. Tunnel member
    2. Brace bar
  5. Remove the following parts.
    1. Floor under cover No. 1 (See FLOOR UNDER COVER REMOVAL/INSTALLATION .)
    2. Floor under cover No. 2 (See FLOOR UNDER COVER REMOVAL/INSTALLATION .)
  6. Disconnect the connector shown in the figure.
    G13175924Courtesy of MAZDA MOTORS CORP.
  7. Remove the screws in the figure.
    Fig 1: Bracket Screws With Torque Specification
    G13175925Courtesy of MAZDA MOTORS CORP.
  8. Set the bracket aside.
  9. Remove the TWC from the mount rubber.
    G13175985Courtesy of MAZDA MOTORS CORP.
  10. Disconnect the TWC from the main silencer. (See EXHAUST SYSTEM REMOVAL/INSTALLATION [(VIN 7 & VIN L)] .) (See EXHAUST SYSTEM REMOVAL/INSTALLATION [(VIN M)] .) (See EXHAUST SYSTEM REMOVAL/INSTALLATION [(VIN Y) (US)] .)
  11. Suspend the TWC using a cable as shown in the figure.
    G13175986Courtesy of MAZDA MOTORS CORP.
  12. Disconnect the AWD solenoid connector and harness clip.
    G13175987Courtesy of MAZDA MOTORS CORP.
  13. Remove in the order indicated in the figure.
  14. Install in the reverse order of removal.
  15. Add the specified rear differential oil. (See DIFFERENTIAL OIL REPLACEMENT .)
  16. After replacing the coupling component, read out the characteristic value of a new coupling component and write it to the PCM. (See COUPLING COMPONENT CALIBRATION DATA WRITING .)
    Fig 2: Coupling Components With Torque Specification
    G13715018Courtesy of MAZDA MOTORS CORP.
    PART DESCRIPTION

    1 Coupling component
    (See COUPLING COMPONENT REMOVAL NOTE .)
    (See COUPLING COMPONENT INSTALLATION NOTE .)
    2 Washer