Subaru Legacy 1998 Workshop Repair Service Manual

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🏷️ Basic Information Identification Make: Subaru Model: Legacy Year: 1998 Generation Generation: Third Generation (BG/BK) Codes Platform Code: BG/BK 👋 Introduction Market Position Segment: Mid-size family sedan/wagon, known for AWD...

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Description

🏷️ Basic Information

Identification

Make:

Subaru

Model:

Legacy

Year:

Generation

Generation:

Third Generation (BG/BK)

Codes

Platform Code:

BG/BK

👋 Introduction

Market Position

Segment:

Mid-size family sedan/wagon, known for AWD and practical utility.

Competitive Analysis

Competitors:

Toyota Camry, Honda Accord, Nissan Altima, Ford Taurus, Chevrolet Lumina.

Key Features

Powertrain Layout:

Standard Symmetrical All-Wheel Drive (AWD) on most models, boxer engine configuration.

Body Styles:

Sedan and Station Wagon.

📋 Manual Details

Coverage Areas

Covered Models:

All Subaru Legacy 1998 models, trims, and engine/transmission configurations.

Page Count

Estimated Page Count:

Approximately 1500+ pages (typical for comprehensive workshop manuals of this era).

Manual Type

Type:

Workshop Repair and Service Manual

Language

Language:

English

Format

Format:

PDF Download

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Engine assembly, cylinder head, valve train, piston/connecting rod, crankshaft, lubrication system, cooling system.

Engine Management:

Fuel injection system, ignition system, emission control systems, sensors, actuators, ECU diagnostics, timing control.

Transmission Manual:

Clutch system, gear shifting mechanisms, internal transmission components, fluid specifications, torque specifications.

Transmission Automatic:

Torque converter, planetary gear sets, hydraulic control system, valve body, transmission control module (TCM), fluid specifications.

Drivetrain And Axles:

Front and rear differentials, driveshafts, CV joints, AWD system operation and maintenance.

Suspension And Steering

Suspension:

Front and rear suspension components (struts, springs, control arms, bushings), alignment specifications, shock absorber replacement.

Steering:

Steering column, steering rack/gearbox, power steering system (pump, lines, fluid), tie rod ends, steering angle sensor.

Brakes

Brake System:

Front and rear brake systems (disc/drum), hydraulic lines, master cylinder, brake booster, ABS system (if equipped), brake fluid specifications.

Electrical System

Charging System:

Alternator, battery, starter motor, wiring diagrams, voltage regulator.

Lighting System:

Headlights, taillights, interior lighting, bulb specifications, wiring schematics.

Instrumentation:

Instrument cluster, gauges, warning lights, sensor inputs.

HVAC:

Heating, ventilation, and air conditioning system operation, components, refrigerant types, troubleshooting.

Bodywork And Chassis

Body Panels:

Body panel removal and installation, door mechanisms, glass replacement, trim removal.

Interior Trim:

Dashboard removal, seat removal, carpet replacement, interior paneling.

Chassis:

Frame specifications, structural components, jacking points, towing information.

Procedures Included

Routine Maintenance:

Oil changes, filter replacements, fluid checks and top-offs, tire rotation, spark plug replacement.

Diagnostic Procedures:

Troubleshooting guides, symptom-based diagnostics, fault code interpretation, component testing methods.

Major Repairs:

Engine rebuilds, transmission overhauls, suspension component replacement, brake caliper rebuilds.

Electrical Troubleshooting:

Wiring diagram interpretation, circuit testing, component diagnosis, repair of electrical faults.

Air Conditioning Service:

Refrigerant system evacuation and charging, leak detection, component replacement.

Technical Depth

Depth:

Comprehensive workshop level, suitable for professional technicians and advanced DIYers. Includes detailed component diagrams, torque specifications, and step-by-step repair instructions.

📊 Manual Specifications

File Format

File Type:

Searchable Text:

Yes (assuming well-scanned original document)

Print Quality

Printability:

Printable pages

Binding Type

Binding:

N/A (Digital Download)

Paper Type

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Primary Engine

Engine Code 1:

EJ22E

Engine Type 1:

2.2L SOHC 16-valve Boxer-4

Displacement 1:

2211 cc (134.9 cu in)

Bore Stroke 1:

97.0 mm x 75.0 mm

Compression Ratio 1:

9.5:1

Horsepower 1:

130 hp @ 5600 rpm

Torque 1:

137 lb-ft @ 4400 rpm

Engine Code 2

Engine Code 2:

EJ25D

Engine Type 2

Engine Type 2:

2.5L DOHC 16-valve Boxer-4 (Phase I)

Displacement 2:

2457 cc (149.9 cu in)

Bore Stroke 2:

99.5 mm x 80.0 mm

Compression Ratio 2:

9.7:1

Horsepower 2:

165 hp @ 6000 rpm

Torque 2:

162 lb-ft @ 4000 rpm

Fuel System

Fuel Delivery:

Multi-point Fuel Injection (MPI)

Recommended Fuel:

Unleaded gasoline, 87 octane (or higher)

🔧 Transmission

Standard

Transmission Type:

5-speed Manual Transmission (5MT)

Optional

Transmission Type:

4-speed Automatic Transmission (4EAT)

Features

AWD System:

Symmetrical All-Wheel Drive (standard on most models).

📐 Dimensions

Exterior

Wheelbase:

104.3 inches (2649 mm)

Length Sedan:

187.0 inches (4750 mm)

Length Wagon:

189.2 inches (4806 mm)

Width:

67.1 inches (1704 mm)

Height Sedan:

55.1 inches (1400 mm)

Height Wagon:

57.3 inches (1455 mm)

Weights

Curb Weight Approx:

3100-3400 lbs (1406-1542 kg) depending on configuration

🛡️ Safety Features

Ratings

NHTSA Driver Front Impact:

Not rated or available for this year/model

IIHS Front Offset Impact:

Acceptable (for its time)

Active Features

Available (standard on some trims, optional on others)

Passive Features

Airbags:

Driver and Passenger Frontal Airbags

Seatbelts:

3-point front and rear seat belts with pretensioners

💡 Technology Features

Infotainment

Audio System:

Factory AM/FM/Cassette player, with optional CD player. Speaker configurations vary by trim.

Driver Assistance

Cruise Control:

Standard on most higher trims, optional on base models.

Connectivity

Auxiliary Input:

Not available from the factory. Aftermarket solutions are common.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 3,750 miles or 3.75 months (severe conditions), 7,500 miles or 7.5 months (normal conditions). Consult manual for exact recommendation.

Air Filter Replacement:

Every 15,000-30,000 miles or as needed based on driving conditions.

Spark Plug Replacement:

Every 30,000 miles (copper core), 60,000-100,000 miles (platinum/iridium, if applicable).

Timing Belt Replacement:

For EJ25D engine, crucial interval is 90,000 miles or 7 years. EJ22E is generally considered non-interference, but belt replacement at 100,000 miles is recommended.

Fluid Specifications

Engine Oil Type:

SAE 5W-30 (API SG or SH)

Engine Oil Capacity:

4.5 US quarts (4.3 L) with filter

Coolant Type:

Subaru Super Coolant (Blue) or equivalent ethylene glycol-based coolant, mixed 50/50 with distilled water.

Transmission Fluid Manual:

API GL-5 SAE 75W-90 gear oil

Transmission Fluid Automatic:

Subaru ATF HP or equivalent Dexron-III/Mercon

Brake Fluid Type:

DOT 3

Power Steering Fluid:

Subaru Power Steering Fluid or ATF Dexron-III

Known Issues

Ej25D Head Gaskets:

The EJ25D DOHC engine is known for susceptible head gasket failures, often due to coolant leaks and subsequent overheating. This manual will detail inspection and replacement procedures.

Automatic Transmission Issues:

Early 4EAT transmissions can experience wear in the valve body and solenoid issues, potentially leading to harsh shifting or delayed engagement. The manual provides diagnostic steps.

Cv Axle Boots:

Torn CV axle boots can lead to joint failure; regular inspection is advised. Procedures for replacement are covered.

📚 Vehicle History

Brand Heritage

Subaru Founding:

Founded in 1953, originally Fuji Heavy Industries.

AWD Pioneer:

Pioneered the use of All-Wheel Drive in passenger cars.

Model Evolution

Legacy Introduction:

First generation introduced in 1989.

Third Gen Debut:

Third generation (BG/BK) debuted for the 1995 model year, updated for 1998 with minor styling and feature enhancements.

Production

Production Years Third Gen:

1995-1999

Manufacturing Location:

Japan

🏆 Awards & Recognition

Recognitions

Ii Hs Awards:

The Subaru Legacy often received good to acceptable ratings from the IIHS for its safety performance in crash tests during this era.