The Mercedes-Benz E 550, part of the W211 E-Class facelift introduced in 2006, represented a significant step up in performance and luxury for the mid-size executive car. Produced through 2009, this variant featured a naturally aspirated 5.5-liter V8 engine paired with a 5G-TRONIC automatic transmission and Mercedes’ 4MATIC all-wheel-drive system. It occupied the upper echelon of the W211 lineup, positioned as a performance-oriented alternative to the more fuel-efficient six-cylinder models and the diesel-powered E320 CDI. The E 550 aimed to deliver a blend of refined comfort and exhilarating power, appealing to buyers seeking a premium driving experience.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-class |
| Generation | E-class (W211, facelift 2006) |
| Type | E 550 V8 (382 Hp) 5G-TRONIC 4MATIC |
| Start of production | 2006 |
| End of production | 2009 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 15.7 l/100 km (15 US mpg, 18 UK mpg, 6.4 km/l) |
| Fuel consumption (extra urban) | 10.7 l/100 km (22 US mpg, 26.4 UK mpg, 9.3 km/l) |
| Fuel consumption (combined) | 13.8 l/100 km (17 US mpg, 20.5 UK mpg, 7.2 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 60 mph | 5.4 sec |
| Weight-to-power ratio | 4.9 kg/Hp, 203.2 Hp/tonne |
| Weight-to-torque ratio | 3.5 kg/Nm, 281.9 Nm/tonne |
| Power | 382 Hp @ 6000 rpm |
| Power per litre | 70 Hp/l |
| Torque | 530 Nm @ 2800-4800 rpm (390.91 lb.-ft. @ 2800-4800 rpm) |
| Maximum engine speed | 6500 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 273 |
| Engine displacement | 5461 cm3 (333.25 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 98 mm (3.86 in.) |
| Piston Stroke | 90.5 mm (3.56 in.) |
| Compression ratio | 10.7:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 8.5 l (8.98 US qt | 7.48 UK qt) |
| Coolant | 11.3 l (11.94 US qt | 9.94 UK qt) |
| Kerb Weight | 1880 kg (4144.69 lbs.) |
| Fuel tank capacity | 80 l (21.13 US gal | 17.6 UK gal) |
| Length | 4852 mm (191.02 in.) |
| Width | 1822 mm (71.73 in.) |
| Width including mirrors | 2063 mm (81.22 in.) |
| Height | 1483 mm (58.39 in.) |
| Wheelbase | 2854 mm (112.36 in.) |
| Front track | 1577 mm (62.09 in.) |
| Rear track | 1570 mm (61.81 in.) |
| Front overhang | 865 mm (34.06 in.) |
| Rear overhang | 1133 mm (44.61 in.) |
| Drag coefficient (Cd) | 0.27 |
| Minimum turning circle | 11.4 m (37.4 ft.) |
| Drivetrain Architecture | All wheel drive (4×4). Internal Combustion engine. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears | 5 |
| Gearbox type | Automatic transmission G-TRONIC |
| Front suspension | Double wishbone, Transverse stabilizer, Air suspension |
| Rear suspension | Independent multi-link suspension, Air suspension, Transverse stabilizer |
| Front brakes | Ventilated discs, 330 mm |
| Rear brakes | Ventilated discs, 300 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 245/45 R17; 245/40 R18 |
| Wheel rims size | 8J x 17; 8.5J x 18 |
Powertrain & Engine Architecture
The heart of the E 550 is the M273 engine, a 5.5-liter naturally aspirated V8. This engine utilizes a three-valve-per-cylinder design (two intake, one exhaust) and a double overhead camshaft (DOHC) valvetrain. Fuel delivery is managed by a multi-port fuel injection system, providing precise fuel metering for optimal combustion. The M273 is known for its smooth power delivery and robust construction. The 5G-TRONIC automatic transmission, a five-speed unit, was specifically tuned to handle the engine’s substantial torque output. The 4MATIC all-wheel-drive system distributes power between the front and rear axles, enhancing traction and stability, particularly in adverse weather conditions. The transmission features a torque converter lock-up clutch to improve fuel efficiency at cruising speeds.
Driving Characteristics
The E 550 offered a distinctly different driving experience compared to the six-cylinder E-Class models. The V8 engine provided ample power throughout the rev range, enabling brisk acceleration and effortless highway cruising. The 0-60 mph sprint was achieved in approximately 5.4 seconds. While not as overtly sporty as some of its rivals, the E 550 delivered a refined and confident driving experience. The 5G-TRONIC transmission offered smooth and responsive shifts, although some critics noted it could occasionally feel hesitant during quick downshifts. The 4MATIC system provided excellent grip and stability, inspiring confidence in all conditions. Compared to a manual transmission equipped E-Class, the automatic prioritized comfort and ease of use over outright driver engagement.
Equipment & Trim Levels
The E 550 came standard with a comprehensive list of features, reflecting its position as a premium model. Standard equipment included leather upholstery, wood trim, a premium sound system, automatic climate control, and power-adjustable front seats with memory function. Optional extras included a panoramic sunroof, a navigation system, adaptive cruise control, and upgraded interior trim options. The E 550 was generally offered with a relatively limited number of standalone options, as it was already well-equipped from the factory. Interior color schemes typically included various shades of black, gray, and beige leather.
Chassis & Braking
The W211 E 550 featured a sophisticated suspension system designed to balance comfort and handling. The front suspension utilized a double wishbone design with a transverse stabilizer, while the rear suspension employed an independent multi-link setup, also with a stabilizer. Air suspension was standard, providing adjustable ride height and improved ride quality. Braking duties were handled by ventilated disc brakes on all four wheels, providing ample stopping power. The anti-lock braking system (ABS) was standard, enhancing safety and control during emergency braking situations. The E 550’s chassis was reinforced to handle the increased power and torque of the V8 engine.
Market Reception & Comparison
The E 550 was generally well-received by automotive critics, who praised its powerful engine, comfortable ride, and luxurious interior. However, its fuel economy was often cited as a drawback, particularly compared to the more efficient six-cylinder models. Compared to the E320 CDI diesel, the E 550 offered significantly more power but consumed considerably more fuel. Against competitors like the BMW 550i and the Audi A6 4.2, the E 550 offered a compelling blend of performance, luxury, and value. Reliability was generally good, although some owners reported issues with the air suspension system and the electronic components.
Legacy
The M273 engine, found in the E 550, proved to be a durable and reliable powerplant when properly maintained. Today, the W211 E 550 represents an attractive option in the used car market for buyers seeking a comfortable and powerful luxury sedan. While maintenance costs can be higher than those of six-cylinder models, the E 550’s robust construction and readily available parts supply ensure its continued viability. The car remains a testament to Mercedes-Benz’s engineering prowess and its commitment to delivering a premium driving experience.
