Subaru Legacy BN/BS (2015-2019) Service Manual: Replacement

Subaru Legacy BN/BS (2015-2019) Service Manual / Manual transmission and differential(6mt) / Differential side retainer oil seal / Replacement

1. Disconnect the ground terminal from battery sensor. NOTE

2. Remove the front tires.

3. Lift up the vehicle.

4. Remove the front under cover. Front Under Cover > REMOVAL

5. Using the TORX® bit T70, remove the drain plug, and drain the transmission gear oil completely.

CAUTION:

• Immediately after the vehicle has been running or after idling for a long time, the gear oil will be hot. Be careful not to receive burns.

• Be careful not to spill the gear oil on the exhaust pipe, to prevent emission of smoke or causing a fire. If gear oil is spilled, wipe it off completely.

6. Tighten the drain plug using TORX® bit T70.

NOTE:

Use a new gasket.

Tightening torque:

44 N·m (4.5 kgf-m, 32.5 ft-lb) (aluminum gasket, silver)

70 N·m (7.1 kgf-m, 51.6 ft-lb) (copper gasket, brown)

70 N·m (7.1 kgf-m, 51.6 ft-lb) (metal gasket, black)

7. Remove the center exhaust pipe (rear). Center Exhaust Pipe > REMOVAL

8. Disconnect the stabilizer link.

9. Remove the bolt securing the ball joint of the front arm to the housing, then separate the front arms and the housing.

10. Using a crowbar, separate the left and right front drive shafts.

11. Remove the oil seal of the differential side retainer.

NOTE:

• Be sure to replace the oil seal after removing the front drive shaft from the transmission.

• Use the ST 398527700 PULLER ASSY to remove the oil seal. If removing the oil seal with a flat tip screwdriver, be careful not to scratch the differential side retainer.

12. Using the ST, install the oil seal of the differential side retainer by lightly tapping with a plastic hammer.

CAUTION:

• Apply transmission gear oil to the oil seal lips, and install the oil seal while being careful not to deform the lip.

• Check the identification marks (L, R) during installation not to mix up the oil seals RH and LH.

NOTE:

Use a new oil seal.

ST 18675AA000

DIFFERENTIAL SIDE OIL SEAL INSTALLER

13. Install the ST to the transmission, and then install the front drive shaft.

ST 28399SA010

OIL SEAL PROTECTOR

14. Insert the front arm ball joint and tighten the mounting bolt.

Tightening torque:

50 N·m (5.1 kgf-m, 36.9 ft-lb)

15. Install the stabilizer link.

Tightening torque:

60 N·m (6.1 kgf-m, 44.3 ft-lb)

16. Install the center exhaust pipe (rear). Center Exhaust Pipe > INSTALLATION

17. Install the front under cover. Front Under Cover > INSTALLATION

18. Lower the vehicle.

19. Pour in transmission gear oil and check the oil level. Transmission Gear Oil

20. Install the front tires.

21. Connect the ground terminal to battery sensor. NOTE

Differential side retainer oil seal

...

Inspection

Check the oil seal of the differential side retainer for transmission gear oil leakage. If there is oil leakage, replace the oil seal with the new part and check the drive shaft. ...

Other materials:

Inspection
1. Measure the resistance between connector terminals.Preparation tool:Circuit testerTerminal No.Inspection conditionsStandard2 — 3Switch OFF1 M- or moreSwitch ONLess than 1 -2. Apply battery voltage between the connector terminals to check the lighting condition of the light.Terminal No.Inspectio ...