Upper Arm: Installation

CAUTION:

For parts which are not reusable, always use new parts.
Always tighten the bushing when the arm is positioned in the state where the vehicle is at curb weight and the wheels are in full contact with the ground.

NOTE: This procedure is only for non-hybrid models. For hybrid models, perform the procedure by referring to the procedure for non-hybrid models.

Before installation, inspect the following items and replace any faulty part with a new one.
- Visually check the upper arm assembly for damage and deformation.
- Visually check the bushing for abnormal cracks, fatigue or damage.
- Visually check the boot on the ball joint for abnormal cracks, fatigue or damage.

Install the rear upper arm assembly.

Make the rear lateral link (rear) installation sections (the bolt on the rear axle housing side and the bolt on the sub frame assembly side) horizontal.

Install the rear upper arm assembly to the sub frame assembly.

Courtesy of SUBARU OF AMERICA, INC.

Tightening torque:

Rear upper arm assembly - sub frame assembly: 90 N.m (9.2 kgf-m, 66.4 ft-lb)

Connect the rear upper arm assembly and the rear axle housing.
Tightening torque:

Rear upper arm assembly - rear axle housing: 80 N.m (8.2 kgf-m, 59 ft-lb)

Install the sub frame assembly.

Lift the sub frame assembly using a transmission jack.

Install the support - sub frames on the left and right sides, and install the sub frame assembly.

CAUTION:

The sub frame assembly is heavy. Make sure that it is firmly supported so that it is level.
While checking there is no dragging of harness and wire, raise it slowly with a transmission jack.

Courtesy of SUBARU OF AMERICA, INC.

Tightening torque:

Refer to "COMPONENT" of "General Description" for the tightening torque.

Refer to REAR SUSPENSION>GENERAL DESCRIPTION>COMPONENT .

Install the bolts on the lower side of rear shock absorber assembly.
Tightening torque:

Impreza model: 120 N.m (12.2 kgf-m, 88.5 ft-lb)

Crosstrek model: 85 N.m (8.7 kgf-m, 62.7 ft-lb)
Install the stabilizer link (upper part). (Model with stabilizer)
Tightening torque:

38 N.m (3.9 kgf-m, 28 ft-lb)
Install the sensor assembly - headlight beam leveler. (Model with auto headlight beam leveler)
CAUTION: Do not apply impact to the sensor assembly - headlight beam leveler or forcibly move the arm. Doing so may cause sensor damage and malfunction.

Tightening torque:

7.5 N.m (0.8 kgf-m, 5.5 ft-lb)
Install the clamp of the sub rear harness.
Install the cable assembly - parking brake.
Tightening torque:

18 N.m (1.8 kgf-m, 13.3 ft-lb)
Install the cable assembly - parking brake to the parking brake shoe.
Refer to PARKING BRAKE>PARKING BRAKE ASSEMBLY (REAR DISC BRAKE)>INSTALLATION .
Install the brake hose bracket and the disc brake assembly - rear.
Tightening torque:

Brake hose bracket: 33 N.m (3.4 kgf-m, 24.3 ft-lb)

Disc brake assembly - rear: Refer to "COMPONENT" of "General Description" for the tightening torque.

Refer to BRAKE>GENERAL DESCRIPTION>COMPONENT>REAR DISC BRAKE .
Install the rear ABS wheel speed sensor.
Tightening torque:

7.5 N.m (0.8 kgf-m, 5.5 ft-lb)
Install the propeller shaft assembly.
Refer to DRIVE SHAFT SYSTEM>PROPELLER SHAFT>INSTALLATION .
Install the rear exhaust pipe.
Refer to EXHAUST (H4DO (EXCEPT FOR HEV))>REAR EXHAUST PIPE>INSTALLATION .
Install the fuel tank protector.
Refer to FUEL INJECTION (FUEL SYSTEMS) (H4DO (EXCEPT FOR HEV))>FUEL TANK PROTECTOR>INSTALLATION .
Install the rear wheels and lower the vehicle.
Tightening torque:

120 N.m (12.2 kgf-m, 88.5 ft-lb)
Connect the battery ground terminal.
Refer to REPAIR CONTENTS>REPAIR CONTENTS>NOTE>BATTERY>GROUND TERMINAL REMOVAL OR INSTALLATION .
Inspect the wheel alignment and adjust if necessary.
- Inspection:
  Refer to FRONT SUSPENSION>WHEEL ALIGNMENT>INSPECTION .
- Adjustment:
  Refer to FRONT SUSPENSION>WHEEL ALIGNMENT>ADJUSTMENT .
  CAUTION:
  When the wheel alignment has been adjusted, perform the following adjustment.
  - Lane keep assist learning value clear (except for hybrid model) (model with EyeSight):
    Refer to EYESIGHT (DIAGNOSTICS) (EXCEPT FOR HEV)>CLEAR ACTIVE LANE KEEP SYSTEM LEARNING VALUE>OPERATION .
  - Lane keep assist learning value clear (hybrid model):
    Refer to EYESIGHT (DIAGNOSTICS) (HEV)>CLEAR ACTIVE LANE KEEP SYSTEM LEARNING VALUE>OPERATION .
  - VDC sensor midpoint setting mode:
    Refer to VEHICLE DYNAMICS CONTROL (VDC)>VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM & H/U)>ADJUSTMENT .
Perform reinitialization of the auto headlight beam leveler system. (Model with auto headlight beam leveler)
Refer to LIGHTING SYSTEM>AUTO HEADLIGHT BEAM LEVELER SYSTEM>PROCEDURE .