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

Subaru Legacy BN/BS (2015-2019) Service Manual / Drive shaft system / Front drive shaft / Installation

1. Before installation, check the drive shaft assembly. Front Drive Shaft > INSPECTION

2. Replace the differential side retainer oil seal with a new part.

• MT model: Differential Side Retainer Oil Seal > REPLACEMENT

• CVT model: Differential Side Retainer Oil Seal > REPLACEMENT Differential Side Retainer Oil Seal > REPLACEMENT

CAUTION:

After pulling out the drive shaft assembly, be sure to replace with a new oil seal.

3. Insert the drive shaft assembly into the hub spline, and pull it into the specified position.

CAUTION:

Do not hammer the drive shaft assembly when installing.

4. Tighten the new nut - axle temporarily.

5. Using the ST, install the front drive shaft assembly to the transmission.

Preparation tool:

ST: OIL SEAL PROTECTOR (28399SA010)

6. Install the ball joint assembly to the housing assembly - front axle.

CAUTION:

Before tightening, make sure the bottom surface of the housing assembly - front axle and the stepped section of ball joint are in contact.

Tightening torque:

50 N·m (5.1 kgf-m, 36.9 ft-lb)

(a)	Bottom surface of housing ASSY - front axle	(c)	Housing ASSY - front axle	(d)	Ball joint
(b)	Raised section of ball joint

7. Install the stabilizer link.

Tightening torque:

60 N·m (6.1 kgf-m, 44.3 ft-lb)

8. While depressing the brake pedal, tighten new nuts - axle to the specified torque.

CAUTION:

Do not load the front axle before tightening the nut - axle. Doing so may damage the hub unit COMPL.

Tightening torque:

220 N·m (22.4 kgf-m, 162.3 ft-lb)

9. After tightening the nut - axle, lock it securely.

10. Fill transmission gear oil. (MT model)

11. Fill differential gear oil. (CVT model)

12. Install the front wheels.

Tightening torque:

120 N·m (12.2 kgf-m, 88.5 ft-lb)

13. Inspect the wheel alignment and adjust if necessary.

• Inspection: Wheel Alignment > INSPECTION

• Adjustment: Wheel Alignment > ADJUSTMENT

CAUTION:

When the wheel alignment has been adjusted, perform the following adjustment.

– Lane keep assist learning value clear (model with EyeSight): Clear Active Lane Keep System Learning Value > OPERATION

– “VSC(VDC) Centering Mode”: VDC Control Module and Hydraulic Control Unit (VDCCM&H/U) > ADJUSTMENT

14. Perform reinitialization of the auto headlight beam leveler system. (Model with auto headlight beam leveler) Auto Headlight Beam Leveler System > PROCEDURE

Assembly

1. Roll up a thick piece of paper to a size where the shaft can pass through, and affix with tape to form a cylinder.2. Attach a new O-ring on this cylinder.CAUTION:• Always use a new O-ring.&bu ...

Inspection

Check the removed parts for damage, wear, corrosion etc. If faulty, repair or replace.• PTJ (pillow tripod joint)Check for seizure, corrosion, damage, wear and excessive play.• EBJ (high-e ...

Other materials:

Ignition timing inspection
CAUTION:After warming-up, engine becomes very hot. Be careful not to burn yourself at measurement.1. Before checking the ignition timing, check the following item:(1) Check the air cleaner element is free from clogging, spark plugs are in good condition, and hoses are connected properly.(2) Check th ...