1998 Mercedes-Benz M-class (W163) Dimensions, Size & Specs

The width of the W163 M-class stands at 1833 mm (around 72.2 inches). This width provides a solid footprint for interior comfort, allowing comfortable seating for five passengers. A width of this size also contributes to stable on-road handling but still fits within typical lane widths, making the SUV relatively easy to maneuver in urban and highway scenarios.

The height of the M-class W163 ranges from 1802 mm to 1820 mm (approximately 70.9 inches to 71.7 inches). This substantial height is typical for mid-size SUVs, offering good headroom and a commanding driving position for drivers. An elevated stance also aids off-road capability and visibility but still allows it to fit within many standard garage heights.

The curb weight of the W163 ranges between 1855 kg and 2085 kg (approximately 4088 to 4596 pounds). This weight reflects the robust build typical for luxury SUVs of this era, including safety features and materials. Heavier weight can impact fuel efficiency but enhances ride stability and crash protection.

The W163 offers a luggage capacity of 613 to 633 liters (~21.6 to 22.3 cubic feet) behind the rear seats, which is quite generous for everyday use such as groceries or luggage. When the rear seats are folded down, the maximum cargo space expands significantly to 2020 liters (about 71.3 cubic feet), allowing for transportation of bulky items and making it versatile for family trips or transporting equipment.

The M-class W163 came with rims ranging from 16-inch (8J x 16) to 18-inch (6.5J, 9J x 18) sizes. Tire options included sizes like 225/75 R16, 275/55 R17 H, and 285/50 R18W. Larger rims and lower profile tires generally improve handling responsiveness but may reduce ride comfort on rough surfaces. Conversely, smaller rims with higher profile tires can provide a softer ride and better off-road grip, reflecting a balance between comfort and performance.

Yes, the W163 fits into a standard residential garage. With a length maxing out at about 4635 mm (182.5 inches) and a height approximately 1820 mm (71.7 inches), it comfortably fits within typical garage dimensions, which often accommodate vehicles up to around 4900 mm (193 inches) in length and 2100 mm (82 inches) in height. This makes the W163 practical for owners with standard garage spaces without needing any modifications.

The W163 Mercedes-Benz M-class was the brand’s first true SUV production model launched in 1997, effectively replacing the earlier conceptual or limited-production SUVs and smaller off-roaders but not directly succeeding a previous M-class generation since it was the inaugural one. Compared to older Mercedes models and SUVs, the W163 offered a more modern, refined mid-size SUV package with improved interior space, luxury features, and advanced off-road capability, setting new standards in dimensions and comfort for Mercedes SUV buyers.

Compared to contemporaries like the BMW X5 E53 (launched in 1999) or the Lexus RX first generation, the W163 was similar in external dimensions with a length around 4.6 meters, width about 1.8 meters, and comparable height. The M-class prioritized a balanced mixture of off-road capability and luxury, often offering slightly more rugged construction and higher weight. Its spacious cargo capacity and premium interior differentiated it from some more road-oriented competitors.

The Mercedes-Benz M-class W163 was introduced as a mid-size luxury SUV with a focus on combining on-road comfort with off-road ability. It offered permanent all-wheel drive, advanced safety features for its time, and a variety of engine options including V6 and V8 powertrains. The interior was spacious and luxurious, emphasizing quality materials and advanced electronics. As Mercedes-Benz’s first major SUV, it was a pivotal model that helped establish the brand in the SUV market segment, renowned for reliability and upscale appeal.