Rear Differential Removal/Installation: Notes

WARNING: This page is about a different variant/trim than selected.

OIL AND CHEMICAL TYPE

Sealant
Type: TB1217C or equivalent

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.
If the characteristic value of a new coupling component is not input to the AWD control module 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 AWD control module. (See COUPLING COMPONENT CALIBRATION DATA WRITING .)
Read out the characteristic value of the coupling component from the label or mark shown in the figure.

Fig 1: Label Or Mark On Coupling Component

Courtesy of MAZDA MOTORS CORP.

NOTE:

The AWD control module stores the characteristic value of the coupling component before replacement.
If the characteristic value of a new coupling component is not written, the AWD control module does not store the value.

Switch the ignition ON (engine off).
Release the electric parking brake.
Switch the ignition off.
Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Remove the wheels and tires. (See WHEEL AND TIRE REMOVAL/INSTALLATION .)
Drain the rear differential oil into a container. (See DIFFERENTIAL OIL REPLACEMENT .)
Remove the following parts: (See FLOOR UNDER COVER REMOVAL/INSTALLATION .)
(1) Floor under cover No. 2 (2) Floor under cover No. 1
Remove the fasteners in the order shown in the figure.

Fig 2: Floor Under Cover Fasteners Loosening Sequence
Courtesy of MAZDA MOTORS CORP.
Remove the insulator.
Remove the following parts:
1. Brace bar
  
  Fig 3: Tunnel Member, Brace Bar And Bolts With Torque Specification
  Courtesy of MAZDA MOTORS CORP.
2. Tunnel member
For SKYACTIV-G 2.5 (With cylinder deactivation) vehicles, perform the following procedure.
(1) Disconnect the exhaust shutter valve connector.

Fig 4: Exhaust Shutter Valve, TWC, Wiring Harness Clips And Connector
Courtesy of MAZDA MOTORS CORP.

(2) Disconnect the wiring harness clips. (3) Disconnect the HO2S connector and the wiring harness clip.

Fig 5: TWC, HO2S, Wiring Harness Clip And Connector
Courtesy of MAZDA MOTORS CORP.

(4) Remove the TWC. (See EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION)] .)
Remove the propeller shaft. (See PROPELLER SHAFT REMOVAL/INSTALLATION .)
Remove the rear drive shaft. (See REAR DRIVE SHAFT REMOVAL/INSTALLATION .)
Remove in the order indicated in the table.
Install in the reverse order of removal.

Add the specified rear differential oil. (See DIFFERENTIAL OIL REPLACEMENT .)

Fig 6: Rear Differential Components With Torque Specification

Courtesy of MAZDA MOTORS CORP.

COMPONENT DESCRIPTION

1	Hose
2	Connector (AWD solenoid)
3	Harness clip
4	Connector (differential oil temperature sensor)
5	Rear differential component (See Rear Differential Component Removal Note .)
6	Coupling component
7	Washer
8	Rear differential mounting bracket (See Rear Differential Mounting Bracket Installation Note .)
9	Breather
10	Rear differential