2006 Mercedes-Benz M-class (W164) Dimensions, Size & Specs

The width of the Mercedes-Benz M-class (W164) varies between 1911 mm and 1951 mm (approximately 75.2 to 76.8 inches). This width contributes to a stable road presence, enhancing driving confidence especially during cornering. However, it also means that parking in tight urban spaces requires some caution. This width aligns with typical mid-size luxury SUVs, balancing interior space with manageable external dimensions.

The height of the Mercedes-Benz M-class (W164) ranges from 1815 mm to 1863 mm (71.5 to 73.3 inches). This height ensures generous interior headroom for both front and rear passengers, contributing to a comfortable cabin environment. It also enhances visibility for the driver, typical of SUVs, while maintaining a relatively low enough profile for easier garage storage compared to taller luxury off-road vehicles.

The curb weight of the M-class (W164) ranges from 2060 kg to 2315 kg (about 4543 to 5105 pounds), depending on the specific model and equipment. This weight reflects the SUV's solid build, luxury fittings, and safety features. While heavier vehicles typically offer a more planted feel and enhanced stability, they might experience slightly reduced acceleration and fuel efficiency compared to lighter SUVs. However, Mercedes-Benz carefully tuned the W164 to balance comfort, performance, and handling.

The maximum weight (gross vehicle weight rating) for the M-class (W164) ranges from 2830 kg to 2945 kg (6240 to 6490 pounds). This metric indicates the total allowable weight including the vehicle itself, passengers, cargo, and any trailer load. This generous capacity allows the SUV to handle significant payloads and towing tasks, making it a versatile choice for families or individuals needing both luxury and utility.

With the rear seats in place, the M-class (W164) offers 551 liters (approximately 19.5 cubic feet) of luggage capacity, providing ample room for everyday cargo such as groceries or luggage for a weekend trip. Folding the rear seats down dramatically increases this space to 2050 liters (about 72.4 cubic feet), making it highly versatile for larger items like sports equipment, furniture, or extended travel needs.

The Mercedes-Benz M-class (W164) offers a range of rims sizes including 7.5J x 17 inches, 8J x 18 inches, and 8J x 19 inches. Corresponding tire size options include 235/65 R17, 255/55 R19, 255/55 R18, and 295/45 R19. These choices allow owners to configure the vehicle based on preference for ride comfort, sportiness, or off-road ability, making it adaptable to diverse driving conditions and styles.

The M-class (W164), with a length between 4780 mm to 4820 mm (188.2 to 189.8 inches), width between 1911 mm to 1951 mm (75.2 to 76.8 inches), and height from 1815 mm to 1863 mm (71.5 to 73.3 inches), can fit into most standard residential garages, which typically measure about 2440 mm (96 inches) in width and 2130 mm (84 inches) in height. However, due to its relatively wide width, care must be taken navigating into the garage to avoid contact with door frames or storage. Checking precise garage dimensions is recommended before parking to ensure comfortable clearance.

Compared to its predecessor, the Mercedes-Benz M-class W163 (produced 1997–2005), the W164 generation is generally larger and heavier. The W164's length increased to approximately 4780-4820 mm compared to the W163's roughly 4680 mm, and the width similarly expanded from about 1890 mm to nearly 1950 mm. Weight also rose from around 2000-2100 kg (4409-4629 lbs) to up to 2315 kg (5105 lbs) due to enhanced luxury features, safety equipment, and structural reinforcements. These dimensional and weight increases contributed to a more spacious, refined and safer SUV experience compared to the earlier generation.

The M-class (W164) holds its own competitively among mid-size luxury SUVs like the BMW X5 (E70) and Audi Q7 (first generation). Dimensionally, the W164 is similar in length and slightly wider than many rivals, providing a spacious cabin and substantial luggage capacity—551 liters with seats up, expanding to 2050 liters folded. Weight is comparable, reflecting robust build quality and luxury fittings. Its blend of powerful engine options, cushioning suspension, and prestigious badge makes the W164 a solid choice for buyers seeking a balance between luxury, practicality, and performance in the competitive luxury SUV segment.