The Mercedes-Benz S-Class Long (V221 facelift), specifically the S 500 V8 4MATIC G-TRONIC variant, represented the pinnacle of luxury and technology for the German automaker between 2009 and 2011. This extended-wheelbase version of the V221 S-Class was primarily aimed at markets where rear passenger space was highly valued, offering a more opulent experience than the standard wheelbase model. The facelift introduced in 2009 brought revised styling, updated technology, and more efficient engine options, solidifying the S-Class’s position as a benchmark in the full-size luxury sedan segment. This particular configuration, combining a naturally aspirated 5.5-liter V8 engine with all-wheel drive and a seven-speed automatic transmission, occupied a sweet spot in the lineup, offering a blend of performance, comfort, and all-weather capability.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | S-Class |
| Generation | S-Class Long (V221, facelift 2009) |
| Type (Engine) | S 500 V8 (388 Hp) 4MATIC G-TRONIC |
| Start of production | 2009 |
| End of production | 2011 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 16.8-16.9 l/100 km (14 – 13.9 US mpg, 16.8 – 16.7 UK mpg, 6 – 5.9 km/l) |
| Fuel consumption (extra urban) | 8.1-8.2 l/100 km (29 – 28.7 US mpg, 34.9 – 34.4 UK mpg, 12.3 – 12.2 km/l) |
| Fuel consumption (combined) | 11.3-11.4 l/100 km (20.8 – 20.6 US mpg, 25 – 24.8 UK mpg, 8.8 – 8.8 km/l) |
| CO2 emissions | 264-266 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.4 sec |
| Acceleration 0 – 62 mph | 5.4 sec |
| Acceleration 0 – 60 mph | 5.1 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Weight-to-power ratio | 5.2 kg/Hp, 194 Hp/tonne |
| Weight-to-torque ratio | 3.8 kg/Nm, 265 Nm/tonne |
| Power | 388 Hp @ 6000 rpm |
| Power per litre | 71 Hp/l |
| Torque | 530 Nm @ 2800-4800 rpm (390.91 lb.-ft. @ 2800-4800 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 273.968 |
| Engine displacement | 5461 cm3 (333.25 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Compression ratio | 10.7:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Engine oil capacity | 8.5 l (8.98 US qt | 7.48 UK qt) |
| Coolant capacity | 8.5 l (8.98 US qt | 7.48 UK qt) |
| Kerb Weight | 2000 kg (4409.25 lbs.) |
| Max. weight | 2660 kg (5864.3 lbs.) |
| Max load | 660 kg (1455.05 lbs.) |
| Trunk (boot) space – minimum | 560 l (19.78 cu. ft.) |
| Fuel tank capacity | 90 l (23.78 US gal | 19.8 UK gal) |
| Length | 5226 mm (205.75 in.) |
| Width | 1871 mm (73.66 in.) |
| Width including mirrors | 2120 mm (83.46 in.) |
| Height | 1479 mm (58.23 in.) |
| Wheelbase | 3165 mm (124.61 in.) |
| Front track | 1600 mm (62.99 in.) |
| Rear (Back) track | 1606 mm (63.23 in.) |
| Front overhang | 888 mm (34.96 in.) |
| Rear overhang | 1173 mm (46.18 in.) |
| Minimum turning circle | 12.2 m (40.03 ft.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears | 7 |
| Gearbox type | Automatic transmission G-TRONIC |
| Front brakes | Disc |
| Rear brakes | Disc |
Powertrain & Engine Architecture
The heart of the S 500 4MATIC was the M273.968 5.5-liter naturally aspirated V8 engine. This engine, a mainstay of the Mercedes-Benz lineup for several years, featured a three-valve-per-cylinder design (two intake, one exhaust) and a relatively high 10.7:1 compression ratio. Fuel delivery was handled by a multi-port fuel injection system. The engine produced 388 horsepower at 6000 rpm and a substantial 530 Nm (390.91 lb-ft) of torque between 2800 and 4800 rpm. This broad torque curve, combined with the seven-speed 7G-TRONIC automatic transmission, provided effortless acceleration and smooth cruising. The 7G-TRONIC transmission was known for its quick shifts and ability to anticipate driver inputs. The 4MATIC all-wheel-drive system distributed power between the front and rear axles, enhancing traction and stability, particularly in inclement weather.
Driving Characteristics
The S 500 4MATIC offered a driving experience focused on refinement and comfort. While not as overtly sporty as some of its competitors, the V8 engine provided ample power for confident overtaking and highway cruising. The 0-60 mph sprint took approximately 5.1 seconds, a respectable figure for a large luxury sedan. The 7G-TRONIC transmission’s gear ratios were optimized for both fuel efficiency and responsive acceleration. Compared to the S 350, which featured a smaller V6 engine, the S 500 offered significantly more power and a more relaxed driving experience. It also felt more composed than the higher-performance S 63 AMG, which prioritized outright speed and handling. The all-wheel-drive system provided a secure feeling on the road, especially in slippery conditions.
Equipment & Trim Levels
The S-Class Long was exceptionally well-equipped, even as standard. The S 500 4MATIC typically included leather upholstery, wood trim, a premium sound system, multi-contour seats with massage function, a sunroof, and a sophisticated climate control system. The long wheelbase added significant rear legroom, making it ideal for chauffeured transport. Optional extras included rear-seat entertainment systems, upgraded leather packages, advanced driver-assistance features like Distronic Plus (adaptive cruise control), and a parking assist function. The interior design emphasized luxury and understated elegance, with a focus on high-quality materials and meticulous craftsmanship.
Chassis & Braking
The V221 S-Class featured an air suspension system that provided a remarkably smooth and comfortable ride. The suspension automatically adjusted to road conditions and driving style, minimizing body roll and maximizing passenger comfort. The S 500 4MATIC was equipped with disc brakes on all four wheels, providing ample stopping power. Anti-lock braking system (ABS) and electronic stability control (ESP) were standard features, enhancing safety and control. The suspension was tuned to prioritize ride comfort over aggressive handling, reflecting the car’s focus on luxury and refinement.
Market Reception & Comparison
The S 500 4MATIC was generally well-received by automotive critics. It was praised for its luxurious interior, comfortable ride, powerful engine, and advanced technology. However, some reviewers noted that the fuel economy was relatively poor, especially considering the car’s size and weight. Compared to the S 350, the S 500 offered a more refined and powerful driving experience, but at a higher price point. The S 63 AMG, while offering significantly more performance, was considerably more expensive and less comfortable. The S 500 4MATIC struck a balance between luxury, performance, and practicality, making it a popular choice among discerning buyers.
Legacy
The M273 engine, while known for its smoothness and reliability, can require maintenance as it ages, particularly regarding valve cover gaskets and oil leaks. The 7G-TRONIC transmission is generally robust, but fluid changes are crucial for long-term reliability. Today, the V221 S-Class, including the S 500 4MATIC, represents a compelling value on the used car market. It offers a level of luxury and technology that still holds up well against more modern competitors, and well-maintained examples can provide years of comfortable and reliable service. Its status as a flagship luxury sedan ensures continued demand from enthusiasts and those seeking a prestigious and comfortable ride.
