Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
H4DO Model
- When raising the transmission jack, make sure that the tie-rod end and the drive shaft boot do not interfere. The drive shaft boot may be damaged.
- The crossmember is heavy. Make sure that it is firmly supported so that it is level.
- For parts which are not reusable, always use new parts.
- Always tighten the bushing in the state where the vehicle is at curb weight and the wheels are in full contact with the ground.
- Install the stabilizer clamp with the arrow mark facing the front of the vehicle.
- Install the crossmember COMPL front.NOTE: Check the crossmember for damage or cracks, and correct or replace if defective.
- Install the bolts which secure the crossmember COMPL front to the body.
Tightening torque:
Refer to FRONT SUSPENSION>General Description>COMPONENT>FRONT SUSPENSION .
- Lower the engine and remove the lifting device and wire ropes.
- Remove the bolt and hanger of the ST that is installed to the engine unit.
- Install the engine mounting and the crossmember COMPL front with new nuts.
Tightening torque:
Engine mounting - crossmember COMPL front: 90 N.m (9.2 kgf-m, 66.4 ft-lb)
- Install the pitching stopper. Refer to Continuously Variable Transmission (TR580)>Transmission Mounting System>Installation>Pitching Stopper .
- Install the steering gearbox assembly and stiffener to the crossmember COMPL front.
Tightening torque:
Refer to FRONT SUSPENSION>General Description>COMPONENT>FRONT SUSPENSION .
- Install the universal joint assembly steering. Refer to Power Assisted System (Power Steering)>Universal Joint>Installation .
- Install the arm COMPL front. Refer to FRONT SUSPENSION>Front Arm>INSTALLATION .
- Connect the tie-rod ends.CAUTION: Do not apply grease, etc. to the tapered portion of ball joint.
- Tighten the castle nut.NOTE: If the ball stud hole and the cut-out portion of the castle nut are not aligned after tightening, tighten the castle nut within the range of 60° to align with each other.
Tightening torque:
27 N.m (2.8 kgf-m, 19.9 ft-lb)
- Install a new cotter pin.
- Tighten the castle nut.
- Install the stabilizer. Refer to FRONT SUSPENSION>Stabilizer>INSTALLATION>STABILIZER .
- Install the front exhaust pipe. Refer to Exhaust (H4DO)>Front Exhaust Pipe>Installation .
- Install the crossmember support front and the crossmember support rear. Refer to FRONT SUSPENSION>Crossmember Support>INSTALLATION .
- Install the under cover front. Refer to Exterior/Interior Trim>Front Under Cover>Installation .
- Install the front wheels and lower the vehicle.
Tightening torque:
120 N.m (12.2 kgf-m, 88.5 ft-lb)
- Connect the power steering harness connector and install the harness clamp.
- Install the air cleaner case. Refer to Intake (Induction) (H4DO)>Air Cleaner Case>Installation .
- Install the air intake boot.
- Install the striker assembly front hood. Refer to Exterior Body Panels>Front Hood>Assembly .
- Install the V-belt cover.
Tightening torque:
7 N.m (0.7 kgf-m, 5.2 ft-lb)
- Connect the ground terminal to battery sensor. Refer to Repair Contents>Note>Battery .
- Inspect the wheel alignment and adjust if necessary.
- Inspection: Refer to FRONT SUSPENSION>Wheel Alignment>INSPECTION .
- Adjustment: Refer to FRONT SUSPENSION>Wheel Alignment>ADJUSTMENT .
- Perform the following adjustments using Subaru Select Monitor.
- Lane keep assist learning value clear: Refer to EyeSight (Diagnostics)>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 .
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.