Market Position:
The 1998 Subaru Legacy Outback represented a significant step in the crossover utility vehicle segment, offering a blend of wagon practicality and SUV-like capability, appealing to outdoors enthusiasts and those seeking all-weather traction.
Competitive Analysis:
Competed against vehicles like the Toyota Camry Wagon, Volvo V70, and early iterations of the SUV market. Its standard Symmetrical All-Wheel Drive (AWD) was a key differentiator.
Key Features:
Standard Symmetrical AWD, increased ground clearance compared to standard Legacy, ruggedized exterior styling, spacious interior, reliable boxer engine architecture.
Coverage Areas:
Complete factory service, repair, and workshop procedures for the 1998 Subaru Legacy Outback.
Page Count:
Estimated 1500+ pages (typical for a comprehensive factory service manual of this era).
Manual Type:
Factory Service Repair Workshop Manual
Systems Covered:
Engine mechanical, engine performance, fuel system, ignition system, exhaust system, cooling system, lubrication system, transmission (automatic and manual), drivetrain (AWD system, differentials, axles), braking system (ABS), steering system, suspension system (front and rear), HVAC system, electrical system (wiring diagrams, components, diagnostics), body and chassis, interior, body exterior, emissions control, diagnostic procedures, troubleshooting guides, maintenance schedules, specifications, torque values, and more.
Procedures Included:
Routine maintenance, scheduled servicing, component diagnostics, repair and overhaul procedures, electrical troubleshooting, body panel repair, HVAC system servicing, brake system bleeding and repair, suspension component replacement, drivetrain component servicing, engine tuning and diagnostics, transmission fluid changes and repairs, interior trim removal and installation, exterior trim and component replacement.
Technical Depth:
Comprehensive. Covers everything from basic fluid changes and inspections to full engine and transmission rebuilds, advanced electrical diagnostics, and detailed bodywork procedures. Includes diagnostic trouble codes (DTCs), test procedures, and specifications for all major components.
Diagnostic Tools:
Covers procedures for use of basic hand tools, specialized Subaru diagnostic tools (e.g., breakout boxes, scan tools if applicable for the era), multimeters, and measurement equipment.
File Format:
High-resolution, searchable PDF.
Print Quality:
Designed for clarity and readability when printed, with sharp text and diagrams.
Binding Type:
N/A (Digital Download)
Paper Type:
N/A (Digital Download)
Accessibility:
Instant download to computer, tablet, or smartphone, allowing for immediate access to repair information.
Transmission Standard:
4-Speed Automatic (with AWD)
Transmission Optional:
5-Speed Manual (with AWD)
AWD System Type:
Symmetrical All-Wheel Drive
Fluid Type Auto:
Subaru ATF HP (or Dexron III equivalent)
Fluid Type Manual:
Subaru Gear Oil (75W-90 GL-5)
Front Differential Fluid:
Subaru Gear Oil (75W-90 GL-5) - integrated with transmission for manual, separate for automatic
Rear Differential Fluid:
Subaru Gear Oil (75W-90 GL-5)
NHTSA Driver Front Impact Rating:
4/5 stars (for 1998 models)
NHTSA Passenger Front Impact Rating:
4/5 stars (for 1998 models)
Passive Features:
Dual front airbags, side-impact door beams, height-adjustable seat belts, rear child seat anchors (LATCH).
Active Features:
Standard Symmetrical AWD, Anti-lock Braking System (ABS) available on higher trims.
AWD Operation:
Continuously variable transfer clutch for automatic transmission, viscous coupling for manual transmission, providing automatic torque distribution.
Infotainment Features:
Standard AM/FM stereo with cassette player, optional CD player. Basic climate controls, manual or automatic climate control depending on trim.
Driver Assistance Features:
ABS on select trims. No advanced driver-assistance systems (ADAS) present on this model.
Connectivity Features:
No integrated Bluetooth or USB connectivity. Analog systems.
Oil Change Interval:
Every 3,750 miles or 3 months (severe service) / 7,500 miles or 6 months (normal service).
Service Intervals Filters
Air Filter Replacement:
Every 15,000 miles or 12 months.
Cabin Filter Replacement:
Not typically equipped on this model year.
Timing Belt Replacement:
Every 60,000 miles or 4 years (crucial for EJ25D due to interference engine design).
Engine Oil Type:
SAE 5W-30 (API SH or higher)
Coolant Type:
Subaru Super Coolant (or equivalent) - silicate-free ethylene glycol
Known Issues Headgasket:
The EJ25D engine is known for susceptibility to head gasket failure, especially if maintenance (particularly timing belt and cooling system) is neglected. The manual will detail inspection and replacement procedures.
Known Issues Awt Pump:
Potential for wear on the viscous coupling unit in the AWD system, though less common than head gasket issues.
Timing Belt Kit Pn:
OEM Part Numbers vary; common aftermarket kit PN example: Gates TCKWP305
Oil Filter Pn:
OEM: 15208AA080; Aftermarket example: Wix 57045, Fram PH7317
Brand Heritage:
Subaru, a division of Subaru Corporation (formerly Fuji Heavy Industries), has a long history of producing vehicles with a focus on boxer engines and All-Wheel Drive technology, originating from aircraft manufacturing.
Model Evolution:
The Outback was introduced as a distinct model in 1995, based on the second-generation Legacy wagon. It was essentially a lifted Legacy wagon with rugged body cladding, positioning itself as a more capable alternative to traditional station wagons.
Production Period:
Second Generation Legacy Outback: 1995-1999
Production Location:
Gunma Plant, Japan
