Segment:
Mid-size sedan and wagon, known for its standard All-Wheel Drive system.
Competitors:
Toyota Camry, Honda Accord, Nissan Altima, Ford Taurus, Chevrolet Malibu.
AWD Standard:
Standard Symmetrical All-Wheel Drive across all trims, a significant differentiator.
Engine Options:
Reliable Boxer (flat) engine configurations.
Body Styles:
Available as a sedan and a wagon (often called the 'Outback' in earlier generations or specific trim levels).
General Coverage:
Complete factory service and repair for the 1999 Subaru Legacy.
Specific Coverage:
Engine, Drivetrain, Suspension, Steering, Brakes, Electrical System, HVAC, Body, Interior, Maintenance, Diagnostics, Troubleshooting, Wiring Diagrams.
Type:
Factory Service Manual (FSM) / Repair Manual
Format:
Digital Download (PDF)
Powertrain:
Engine mechanical, engine control system (ECU), fuel system, ignition system, cooling system, exhaust system, automatic transmission (AT), manual transmission (MT), all-wheel drive (AWD) system.
Chassis:
Suspension (front and rear), steering system, brake system (including ABS if equipped), wheels and tires.
Electrical:
Body electrical systems, lighting, instruments and gauges, power accessories, audio system, HVAC controls, engine control wiring, chassis control wiring, wiring diagrams for all systems.
Body Interior:
Body panels, doors, windows, locks, exterior trim, interior trim, seats, safety restraints (airbags, seatbelts).
Maintenance:
Scheduled maintenance, oil changes, filter replacements, fluid checks and changes, belt replacement, tune-up procedures.
Diagnostics Troubleshooting:
Fault code diagnosis, symptom-based troubleshooting, electrical circuit diagnosis, engine performance issues, transmission problems.
Repair Rebuild:
Engine overhaul, transmission overhaul, brake component replacement, suspension component replacement, steering component replacement, electrical component repair, body panel repair.
Special Tools:
Identification and usage of Subaru-specific tools and equipment.
Depth:
Comprehensive: Covers routine maintenance, advanced diagnostics, and complete component overhauls, suitable for professional technicians and skilled DIY enthusiasts.
Engine Code 1:
EJ22 (2.2L SOHC)
Displacement 1:
2212 cc (2.2 Liters)
Horsepower 1:
135 hp @ 5800 rpm
Torque 1:
135 lb-ft @ 4400 rpm
Configuration 1:
Naturally Aspirated Boxer-4 (Flat-4)
Fuel Delivery 1:
Multi-point Fuel Injection (MPI)
Engine Code 2:
EJ25D (2.5L DOHC)
Displacement 2:
2457 cc (2.5 Liters)
Horsepower 2:
165 hp @ 5600 rpm
Torque 2:
166 lb-ft @ 4000 rpm
Configuration 2:
Naturally Aspirated Boxer-4 (Flat-4), DOHC
Fuel Delivery 2:
Multi-point Fuel Injection (MPI)
0 60 Mph Ej22:
Approx. 9.5-10.5 seconds
0 60 Mph Ej25:
Approx. 8.0-9.0 seconds
Fuel Type:
Unleaded gasoline (87 octane minimum recommended)
Fuel Tank Capacity:
60 liters (15.9 US gallons)
Transmission Type Sedan Ej22:
5-speed Manual Transmission (5MT)
Transmission Type Sedan Ej25:
4-speed Automatic Transmission (4EAT)
Transmission Type Wagon:
5-speed Manual Transmission (5MT) or 4-speed Automatic Transmission (4EAT)
AWD System:
Symmetrical All-Wheel Drive standard with both transmission types.
Automatic Transmission Mode:
4EAT features selectable modes (e.g., Power/Economy) and viscous coupling center differential.
Manual Transmission Fluid:
API GL-5, SAE 75W-90 synthetic gear oil (Subaru Genuine Gear Oil recommended).
Automatic Transmission Fluid:
Subaru ATF-HP (or equivalent Dexron III/Mercon compatible fluid before ATF-HP was standard).
Length Sedan:
4630 mm (182.3 in)
Width Sedan:
1730 mm (68.1 in)
Height Sedan:
1405 mm (55.3 in)
Wheelbase:
2630 mm (103.5 in)
Track Width Front:
1475 mm (58.1 in)
Track Width Rear:
1470 mm (57.9 in)
Curb Weight Ej22 Mt:
Approx. 1350 kg (2976 lbs)
Curb Weight Ej25 At:
Approx. 1420 kg (3131 lbs)
Gross Vehicle Weight Rating:
Varies by model and configuration, consult manual.
NHTSA Frontal Impact Driver:
4 stars (for 1999 Legacy sedan)
NHTSA Frontal Impact Passenger:
4 stars (for 1999 Legacy sedan)
ABS:
Available (standard on higher trims or optional, depending on market).
Traction Control:
Not typically available on 1999 models.
Airbags:
Driver and passenger front airbags.
Seatbelts:
3-point front and rear seatbelts, front seatbelt pretensioners.
Child Seat Anchors:
Lower Anchors and Tethers for Children (LATCH) system not standard on this generation.
Oil Change Interval:
Every 7,500 miles (12,000 km) or 6 months, whichever comes first. Use synthetic oil for optimal performance.
Air Filter Replacement:
Every 15,000 miles (24,000 km) or 12 months.
Coolant Flush:
Every 30,000 miles (48,000 km) or 24 months.
Spark Plug Replacement Ej22:
Every 60,000 miles (96,000 km).
Spark Plug Replacement Ej25D:
Every 30,000 miles (48,000 km) due to the design of the dual overhead cam system and spark plug access.
Timing Belt Replacement:
Every 60,000 miles (96,000 km) or 5 years. Critical for EJ engines; failure causes catastrophic engine damage.
Engine Oil Capacity Ej22:
4.5 U.S. quarts (4.3 liters) with filter change.
Engine Oil Capacity Ej25D:
4.5 U.S. quarts (4.3 liters) with filter change.
Engine Oil Type:
API SJ or higher, SAE 5W-30 recommended for most climates. Check manual for specific viscosity recommendations based on temperature.
Coolant Type:
Subaru Super Coolant (blue) or equivalent ethylene glycol-based coolant with corrosion inhibitors. Mix 50/50 with distilled water.
Head Gaskets:
While less prone than later EJ25D engines (which had issues), early EJ25D engines can still be susceptible to head gasket leaks. Regular cooling system maintenance is key.
Automatic Transmission:
The 4EAT can be robust, but periodic fluid changes are essential to prevent wear and potential solenoid issues.
Suspension Wear:
Bushings and struts can wear over time, leading to noise and poor handling. This manual covers replacement and alignment procedures.
Electrical Connectors:
Corrosion or looseness in electrical connectors can cause intermittent faults, particularly in areas exposed to moisture. The wiring diagrams are crucial for diagnosis.
Subaru Philosophy:
Known for its engineering prowess, particularly with Boxer engines and Symmetrical All-Wheel Drive, often appealing to those valuing capability and reliability in varied conditions.
Generation:
This manual covers the fourth generation (BD/BG/BK chassis) of the Subaru Legacy, produced from 1993-1999. The 1999 model year represents the later part of this generation, often featuring minor updates.
Distinguishing Features Of Gen:
Introduction of the GT trim with turbocharged engines in some markets, improved safety features, and refined styling compared to the first generation.
Manufacturing Location:
Primarily Gunma, Japan.
Safety Awards Early Generations:
Previous generations of the Legacy received recognition for safety, contributing to Subaru's reputation, though specific awards for the '99 model are not prominently cited.
Car And Driver 10Best:
While not a 10Best winner in 1999, the Legacy consistently ranked well in its class for performance and AWD capability by automotive publications.