Engine Mechanical:
Engine assembly, cylinder head, camshafts, pistons, crankshaft, lubrication system, cooling system, timing belt/chain, seals and gaskets.
Engine Performance:
Fuel injection system, ignition system, emissions control system, turbocharger system (WRX/STI).
Transmission:
Manual transmission (5-speed & 6-speed STI), automatic transmission (4-speed), transfer case, differentials (front, center, rear).
Drivetrain:
Driveshafts, axles, CV joints, wheel bearings, AWD system operation.
Suspension:
Front suspension (MacPherson struts), rear suspension (double wishbone/multi-link), springs, shock absorbers, control arms, bushings, sway bars.
Steering:
Power steering system, steering column, steering rack, tie rod ends.
Brakes:
Front and rear disc brakes, ABS system, brake lines, master cylinder, calipers, rotors, brake pads, parking brake.
Electrical System:
Battery, alternator, starter motor, wiring diagrams, fuses, relays, lighting system, horn, power windows, central locking.
Body And Chassis:
Body panels, doors, hood, trunk, bumpers, interior trim, chassis components, corrosion protection.
HVAC System:
Air conditioning, heating, ventilation, climate control, blower motor, evaporator, condenser, refrigerant.
Safety Systems:
Airbags, seat belts, SRS system, child seat anchors.
Routine Maintenance:
Oil changes, filter replacements, spark plug replacement, fluid level checks and top-offs, tire rotation and pressure checks.
Engine Repair:
Engine overhaul, cylinder head gasket replacement, timing belt replacement, piston ring replacement, valve adjustments.
Transmission Repair:
Transmission disassembly, reassembly, clutch replacement, torque converter replacement, gear inspection and replacement.
Brake Service:
Brake pad replacement, rotor resurfacing/replacement, brake caliper overhaul, brake bleeding, ABS system diagnostics and repair.
Suspension And Steering Repair:
Shock absorber/strut replacement, control arm replacement, ball joint replacement, tie rod end replacement, power steering pump replacement.
Electrical Diagnostics:
Troubleshooting electrical faults using wiring diagrams, starter and alternator testing, power window and lock repair.
Bodywork And Trim:
Panel replacement, door mechanism adjustment, interior panel removal and installation, bumper repair.
Troubleshooting Guides:
System-specific diagnostic flowcharts and symptom-based troubleshooting procedures.
Diagnostic Capability:
Advanced diagnostic procedures, including ECU code reading, sensor testing, and actuator testing.
Rebuild Procedures:
Comprehensive instructions for complete engine, transmission, and differential rebuilds.
Specifications Accuracy:
Precise torque specifications, clearances, fluid capacities, and alignment data.
Wiring Diagrams:
Detailed, system-specific electrical wiring diagrams for easy troubleshooting.
Oil Change Interval:
Every 3,750 miles or 3 months (severe driving) / 7,500 miles or 6 months (normal driving), consult manual for specifics.
Timing Belt Replacement:
Every 105,000 miles or 7 years (for EJ251 and EJ205 engines). Refer to manual for EJ207.
Engine Oil Type:
SAE 5W-30 (API SG or higher) or SAE 10W-30 (API SG or higher) - consult manual for specific viscosity recommendations based on climate.
Engine Oil Capacity:
4.8 US quarts (4.5 liters) with filter for 2.5L; 4.0 US quarts (3.8 liters) with filter for 2.0L.
Coolant Type:
Subaru Super Coolant (Blue) or equivalent silicate-free antifreeze/coolant.
Transmission Fluid Manual:
GL-4 SAE 75W-90 gear oil.
Transmission Fluid Automatic:
Subaru ATF-HP or equivalent DEXRON-III H/MERCON approved fluid.
Head Gasket Leaks:
While less prevalent in the EJ205/EJ207 than some other EJ variants, head gasket leaks can still occur. The EJ251 is more prone to this issue.
Turbocharger Failure:
On WRX models, turbocharger issues can arise from lack of proper warm-up/cool-down or oil starvation. Intercooler piping leaks are also common.
Suspension Wear:
Bushings and ball joints can wear over time, leading to noise and handling degradation.
Clutch Wear:
Performance driving can accelerate clutch wear.
Ignition Coil Failure:
Ignition coil packs can fail, leading to misfires.