2009 Mercedes-Benz S-class (W221, facelift 2009) Dimensions, Size & Specs

The curb weight of the Mercedes-Benz S-class W221 facelift ranges from approximately 1820 to 2045 kg (4012 to 4508 lbs), depending on the specific model and equipment. Its maximum permissible weight (gross vehicle weight rating) ranges from 2490 to 2690 kg (5491 to 5930 lbs). This weight range reflects the luxury features, safety systems, and powerful engine options typically equipped on this flagship sedan, combining performance with comfort and safety.

The luggage capacity of the Mercedes-Benz S-class W221 facelift is 560 liters (approximately 19.8 cubic feet). This capacity is generous for a luxury sedan and sufficient for several large suitcases or equivalent cargo, making it practical for long trips. Compared to mid-size sedans, which often offer between 400-450 liters, the S-class offers more trunk space, emphasizing luxury with utility.

The Mercedes-Benz S-class W221 facelift supports a variety of rim sizes including 8J x 17, 8J x 17 (possibly a typo repeated), 8J x 18, 9.5J x 19, and 8.5J x 19 inches. Corresponding tire sizes are 235/55 R17, 255/45 R18, 275/40 R19, and 255/40 R19. These larger wheels and tires contribute to the sedan’s refined ride quality, road grip, and overall aesthetic, enhancing both performance and luxury.

A standard residential garage size varies but typically ranges around 2400-2700 mm (94.5-106.3 inches) in width and roughly 4800-5400 mm (189-212.5 inches) in length. Given the S-class W221 facelift's dimensions—5096 mm (200.6 inches) in length and 1871 mm (73.7 inches) in width, extending to 2120 mm (83.5 inches) with mirrors unfolded—it will fit lengthwise inside most standard garages with some clearance. However, width-wise it is a tight fit with mirrors folded but might be difficult when mirrors are open, so mirror folding is recommended when parking indoors.

The Mercedes-Benz S-class W221 facelift has a body width of 1871 mm (73.7 inches). When the side mirrors are opened, this width increases to 2120 mm (83.5 inches). This nearly 25 cm (9.8 inches) increase is important to consider in narrow parking spaces or tight garages. For daily urban driving and parking, folding the mirrors helps in avoiding scrapes and reduces the overall footprint, an essential feature for a car of this size.

Compared to its predecessor, the Mercedes-Benz S-class W220 (produced from 1998 to 2005), the W221 facelift is notably larger and more modern in its dimensions and design. The W220 was shorter, measuring about 5060 mm (199.2 inches) in length, narrower at around 1820 mm (71.7 inches), and slightly lower in height, around 1460 mm (57.5 inches). The W221 facelift’s dimensions of 5096 mm length, 1871 mm width, and 1479 mm height represent a modest increase, affording more interior space, enhanced safety features, and improved road presence, aligning with evolving luxury sedan standards.

The Mercedes-Benz S-class W221 facelift (5096 mm length, 1871 mm width) is competitively sized among full-size luxury sedans of its era. For instance, the BMW 7 Series E65/E66 (2008-2015) measures approximately 5087 mm in length and about 1902 mm in width, while the Audi A8 D3 facelift (2008-2010) is around 5113 mm long and 1946 mm wide. Though the S-class is slightly narrower than these competitors, it remains a large luxury sedan designed to balance spaciousness with maneuverability. Each brand prioritizes a slightly different mix between interior comfort and external dimensions, with the S-class often praised for its elegant design and spacious interior.

The roof load capacity for the Mercedes-Benz S-class W221 facelift is rated at 100 kg (approximately 220 lbs). This capacity indicates the maximum weight that the car’s roof can safely bear, which is relevant when considering roof racks, cargo boxes, or other roof-mounted accessories. This capacity is standard in luxury sedans, enabling owners to transport additional gear such as luggage or sporting equipment without compromising safety or structural integrity. However, when carrying roof loads, drivers should be cautious of the vehicle's handling and increased height.

The Mercedes-Benz S-class W221 facelift uses tire sizes including 235/55 R17, 255/45 R18, 275/40 R19, and 255/40 R19. Larger tires, such as those on 18- and 19-inch rims, provide improved road grip and cornering stability, contributing to a sportier driving feel. The 17-inch tires offer a smoother ride with more cushioning over bumps, prioritizing comfort. This variety allows owners to choose based on their preference between comfort, handling, and performance, all important factors in a luxury sedan like the S-class where ride quality is paramount.