Reliability AnalysisBased on known issue patterns, repair cost data, and ownership trends · How we score

1998 Lexus LS Reliability ReportKeepScore 92/100 · top failure points · buy or avoid

92/ 100

KeepScore

LOW RISK

Grade: A-

A truly exceptional luxury sedan that sets the benchmark for reliability, requiring only diligent attention to age-related wear.

Full system breakdown + what I would do

Quick Facts · 1998 Lexus LS

  • Scores roughly in line with adjacent Lexus LS years — consistency that often signals a stable platform generation.
  • The system most likely to surface first: power steering system (moderate severity).
  • Has 1 NHTSA recall on record — the most notable involves the exterior lighting.

1998 Lexus LS: Buy or Avoid?

The 1998 Lexus LS 400 is an automotive icon, offering unparalleled luxury and near-bulletproof reliability, making it one of the smartest used luxury sedan purchases you can make today. While age dictates some routine maintenance and a few known wear items need attention, its core engineering ensures a remarkably serene and dependable ownership experience that vastly outpaces its European rivals from the same era.

The 1998 Lexus LS 400 represents a shrewd and confident purchase for anyone seeking luxury, comfort, and uncompromising reliability on a budget. Its legendary powertrain and exceptional build quality mean that with proper preventative maintenance, this car will serve you dependably for many years to come. Do not hes…

Best Model Years

1995-2000 (XF20 generation), with 1998-2000 benefiting from the 5-speed automatic and minor styling updates.

Years to Avoid

None in particular, as the entire LS 400 line (1990-2000) is renowned for reliability, but the later XF20 models are generally preferred.

Biggest Strengths

  • Legendary 1UZ-FE V8 engine durability
  • Robust A650E 5-speed automatic transmission
  • Exceptional build quality and interior longevity

1998 Lexus LS — Known Trouble Spots

The systems that tend to fail first on the 1998 Lexus LS, with the typical mileage window when each becomes a concern. Detailed repair-cost ranges and exact what-to-check inspection notes are in the full report.

1
Power Steering Systemmoderate~80,000-150,000 mi

Leaking power steering pumps, high-pressure hoses, and reservoirs are common due to aged seals and lines. This can lead to fluid loss, pump whine, and eventually pump failure if not addressed.

2
Engine Control Unit (ECU)major~100,000-180,000 mi

Capacitor leakage within the ECU is a well-documented issue for this generation, causing symptoms like rough idle, erratic shifting, 'Check Engine' light, or no-start conditions. It's an age-related component failure.

3
Suspension Componentsmoderate~100,000-160,000 mi

Typical wear items like lower ball joints and control arm bushings eventually wear out, leading to clunking noises, imprecise steering, and tire wear. Air suspension, if equipped, is a major failure point with expensive repairs.

Full repair-cost ranges, fix-before-you-buy notes, and inspection checklists are in the report.

1998 Lexus LS Mileage Danger Zones

The mileage windows when the 1998 Lexus LS most commonly needs attention. Plan ahead, budget accordingly, and inspect before you cross each threshold.

30,000

Low Risk Zone

At this mileage, the LS 400 is essentially still new. Focus on routine oil changes, tire rotations, and general fluid checks. Major issues are exceptionally rare.

60,000

Maintenance Check Zone

This mileage primarily involves routine maintenance. Inspect brakes, tires, and all fluid levels. Start thinking about flushing the brake and power steering fluids if not already done. No specific failure trends are expected.

90,000

Critical Service Zone

This is the most critical mileage for a preventative service: the timing belt and water pump replacement. Neglecting this will lead to catastrophic engine damage. Also, inspect all suspension components and power steering for leaks.

120,000+

Elevated Vigilance Zone

Beyond 120,000 miles, age-related wear becomes more pronounced. Be vigilant for power steering leaks, lower ball joint wear, and the infamous ECU capacitor issues. Regular inspections and addressing minor issues promptly will prevent lar…

1998 Lexus LS Ownership Cost Outlook

What it typically costs to keep the 1998 Lexus LS on the road. Full 5-year cost-of-ownership projection and major-failure-risk forecast are in the report.

Annual Maintenance

$600-900 (includes preventative services like timing belt every 90k miles)

Moderate Repairs

$500-1,500 occasionally (for power steering, suspension components or ECU repair)

How Long Does the 1998 Lexus LS Last?

Focus on a complete and verifiable service history, especially the timing belt, rather than just low mileage. A well-maintained 150,000-mile example is often a better bet than a low-mileage car with an unknown past.

What 1998 Lexus LS Owners Actually Say

What Owners Love

  • Incredibly smooth, quiet, and refined ride quality, even today.
  • Bulletproof powertrain that can literally last for hundreds of thousands of miles.
  • Luxurious, high-quality interior materials that hold up exceptionally well over time.
  • Effortless V8 power delivery, making highway cruising a dream.

Common Frustrations

  • Dated technology and infotainment system by modern standards.
  • Soft, isolated handling that lacks the sporty feel of some European rivals.
  • Fuel economy is respectable for a V8 but can be a drawback for some.
  • Specific age-related issues (power steering, ECU) can be frustrating if not proactively addressed.

Who Should Buy the 1998 Lexus LS?

Best For

  • Value-conscious luxury buyers seeking unparalleled reliability.
  • Long-distance commuters who prioritize comfort and quietness.
  • Drivers who appreciate traditional, analogue luxury without modern tech complexities.

Not Ideal For

  • Performance enthusiasts seeking sharp handling or rapid acceleration.
  • Tech-savvy buyers needing cutting-edge infotainment and driver assistance.

How the 1998 Lexus LS Compares to Rivals

The LS 400 stands as a titan of reliability, consistently outperforming its direct European competitors in terms of long-term durability and lower repair costs. Its mechanical robustness is legendary, making it a far safer used purchase.

More Reliable Than

  • BMW 7-Series (E38) of similar vintage (in long-term running costs and mechanical durability)
  • Mercedes-Benz S-Class (W140) of similar vintage (in long-term running costs and electrical reliability)
  • Cadillac Seville (STS/SLS) of similar vintage

Comparable To

  • Acura Legend (though slightly older and smaller)
  • Infiniti Q45 (second generation)

Safety Recalls on the 1998 Lexus LS

1 recall on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.

EXTERIOR LIGHTING

SABERSPORT IS RECALLING 16,270 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THESE LAMPS DO NOT CONTAIN THE REQUIRED AMBER SIDE REFLECTORS.

What breaks on the 1998 Lexus LS?

Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.

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Lexus LS — Year-by-Year Comparison

Compare KeepScores across nearby years of the Lexus LS. Click any year for its full report.

Competing 1998s Worth a Look

Similar class, similar year range — ranked by KeepScore.

Relevant Products for Your 1998 Lexus LS

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Frequently Asked Questions

Full Report

1998 Lexus LS

7-system breakdown, mileage danger zones, repair cost projections, buyer checklist, and expert verdict.

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Complete Owner's Guide

Already own one? Get the 13-chapter owner's guide with specs, service schedules, and fluid capacities.

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