The 1998 Mercedes-Benz ML-Class (M-Class) is a midsize luxury SUV designed to blend Mercedes comfort with family-friendly practicality and available all-wheel drive. As the first model year of the W163 generation, it helped Mercedes establish a strong foothold in the premium SUV market against rivals like the Lexus RX and BMW X5 (which arrived shortly after). It’s ideal for drivers who want a comfortable ride, a high seating position, and classic Mercedes styling with usable cargo space. Early production models can be rewarding to own, but shoppers should pay close attention to maintenance history due to first-year quirks.

- W163 first-generation design: A body-on-frame-based SUV platform feel with a comfortable, road-focused ride and a spacious cabin for five passengers. - Engine options: Commonly found with a 3.2L V6 (ML320) producing around 215 hp, and a 4.3L V8 (ML430) producing around 268 hp, both paired with a 5-speed automatic transmission (5G-Tronic). - Available 4MATIC all-wheel drive: Many 1998 ML models are equipped with Mercedes’ 4MATIC system for improved all-weather traction, along with traction and stability control features typical of the era. - Practical interior and cargo utility: A large rear cargo area, fold-down rear seats, and SUV-friendly ground clearance make it a solid choice for family hauling and road trips. - Classic Mercedes safety and comfort: Dual front airbags, ABS braking, and a comfortable, upright driving position, with available leather, sunroof, and premium audio depending on trim and options.

Shoppers researching 1998 Mercedes-Benz ML-Class problems, 1998 Mercedes-Benz ML-Class reliability, and 1998 Mercedes-Benz ML-Class common issues will find that the first model year can be more maintenance-sensitive than later W163s. When cared for, these SUVs can be dependable, but neglected examples can become expensive quickly. - Automatic transmission shifting issues: Some owners report delayed engagement, harsh shifting, or slipping as mileage climbs, commonly in the 100,000–150,000 mile range. Fluid condition and service history matter; lack of regular fluid changes can accelerate wear. - Cooling system and overheating risks: Radiators, water pumps, thermostats, hoses, and the fan clutch can fail with age, sometimes showing up around 80,000–120,000 miles. Overheating can lead to bigger engine problems, so any temperature spikes or coolant smells should be taken seriously. - Electrical gremlins and accessory failures: Window regulators, door lock actuators, instrument cluster pixels, and intermittent lighting or switch issues are common complaints on older MLs. These problems can appear at various mileages and are often more age-related than mileage-related. - Suspension and steering wear: Front control arm bushings, ball joints, shocks/struts, and steering components can wear out, often noticeable by clunks over bumps, uneven tire wear, or vague steering typically after 100,000 miles. Replacing worn components restores the ML’s ride quality significantly.