The 1998 Mercedes-Benz G-Class is a body-on-frame, full-size luxury SUV with serious off-road hardware and a distinctive, upright design. For 1998, the G-Class sits in the W463 generation (introduced in 1990), which brought a more refined interior and stronger on-road manners compared to earlier, more utilitarian G-Wagen models. It’s ideal for buyers who want a classic, long-lasting SUV feel, true 4x4 capability, and premium craftsmanship over modern fuel economy or cutting-edge tech. In the market, it’s positioned as a niche luxury 4x4 with high durability potential and higher-than-average upkeep.

1) W463 CHASSIS AND FULL-TIME 4WD: Permanent four-wheel drive with a rugged ladder frame makes the 1998 G-Class feel “built like a tank,” especially on rough roads and trails. 2) TRIPLE DIFFERENTIAL LOCKS (ON MANY MODELS): A signature G-Class feature—front, center, and rear locking differentials are commonly associated with the G’s legendary traction in mud, sand, and snow. 3) ENGINE OPTIONS (MARKET-DEPENDENT): Many 1998 models were offered with robust inline-6 and V8 gasoline engines depending on region and trim, paired with a durable automatic transmission. Exact output varies by market, but the emphasis is on torque, longevity, and smoothness. 4) CLASSIC, HIGH-VISIBILITY DRIVING POSITION: The tall seating position, squared-off body, and upright glass provide excellent outward visibility, a key reason drivers love the G in city traffic and on trails. 5) PREMIUM, LONG-LIFE INTERIOR MATERIALS: Supportive seats, solid switchgear, and high-quality trim are strong points, though age-related wear and electrical gremlins can appear with time.

Shoppers researching “1998 Mercedes-Benz G-Class reliability” should know these SUVs can run for a very long time, but repairs can be expensive and deferred maintenance causes most “1998 Mercedes-Benz G-Class problems.” Here are common issues reported on aging W463 models: 1) RUST AND WATER INTRUSION: Corrosion can affect door bottoms, rocker areas, rear quarter sections, and underbody seams, especially in wet/salty climates. Water leaks around door seals, sunroof drains (if equipped), or windshield seals can lead to damp carpets and electrical issues. This is more age- and climate-driven than mileage-driven. 2) ELECTRICAL GREMLINS AND ACCESSORY FAILURES: Power windows, central locking/vacuum-related functions, switchgear, and aging wiring/connectors can cause intermittent faults. Owners often notice issues after 100,000 miles or simply after decades of heat/cold cycling. 3) COOLING SYSTEM AND HOSE AGING: Radiators, hoses, thermostats, and water pumps can fatigue with age. Overheating risk increases if coolant service has been neglected; many owners proactively refresh components around 80,000–120,000 miles or by age. 4) SUSPENSION/STEERING WEAR AND DRIVELINE VIBRATIONS: Worn bushings, steering linkages, shocks, and driveshaft components can cause wandering, clunks, or vibration—often noticeable from 90,000 miles onward depending on use (off-road driving accelerates wear). A well-maintained truck can still drive tightly, but neglected examples feel loose.