The Mercedes-Benz E 550, produced from 2006 to 2009 as part of the W211 facelift generation, represented a significant performance offering within the E-Class lineup. Positioned as a step up from the E 350 and a more accessible alternative to the high-performance AMG models, the E 550 combined a naturally aspirated 5.5-liter V8 engine with the smooth shifting 7G-TRONIC automatic transmission. This variant aimed to deliver a blend of luxury, refinement, and robust power, appealing to buyers seeking a sophisticated grand touring experience. It was a key part of Mercedes-Benz’s strategy to offer a wider range of performance options within the E-Class family.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-class |
| Generation | E-class (W211, facelift 2006) |
| Type (Engine) | E 550 V8 (382 Hp) 7G-TRONIC |
| 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) | 10.2 l/100 km (23.1 US mpg, 27.7 UK mpg, 9.8 km/l) |
| Fuel consumption (combined) | 13.1 l/100 km (18 US mpg, 21.6 UK mpg, 7.6 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 60 mph | 5.4 sec |
| Weight-to-power ratio | 4.6 kg/Hp, 216.8 Hp/tonne |
| Weight-to-torque ratio | 3.3 kg/Nm, 300.8 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 | 1762 kg (3884.55 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 | 1557 mm (61.3 in.) |
| Rear track | 1552 mm (61.1 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 | Rear wheel drive |
| Drive wheel | Rear wheel drive |
| Number of gears | 7 |
| Gearbox type | Automatic transmission G-TRONIC |
| Front suspension | Independent multi-link suspension, 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 |
| Front tires | 245/45 R17; 245/40 R18 |
| Rear tires | 245/45 R17; 265/35 R18 |
| Front wheel rims | 8J x 17; 8.5J x 18 |
| Rear wheel rims | 8J x 17; 9J x 18 |
Powertrain & Engine Architecture
The heart of the E 550 is the M273 engine, a 5.461-liter (333.25 cubic inches) naturally aspirated V8. This engine utilizes a three-valve per cylinder (two intake, one exhaust) design with double overhead camshafts (DOHC). The M273 is known for its smooth power delivery and relatively high specific output. Fuel is delivered via multi-port fuel injection, and the engine benefits from a relatively high 10.7:1 compression ratio. The 7G-TRONIC automatic transmission, a seven-speed unit, was a key component in maximizing the engine’s efficiency and providing seamless gear changes. This transmission featured a torque converter lock-up clutch to reduce slippage and improve fuel economy. The transmission was tuned for a balance between comfort and responsiveness, offering both automatic and manual shift modes.
Driving Characteristics
The E 550 offered a distinctly different driving experience compared to its six-cylinder siblings. The V8 engine provided ample torque throughout the rev range, resulting in strong acceleration. The 0-60 mph sprint was achieved in approximately 5.4 seconds. While not as overtly sporty as the AMG variants, the E 550 delivered a refined and confident driving experience. The 7G-TRONIC transmission contributed to smooth and almost imperceptible gear changes, enhancing the overall comfort. Compared to the E 350, the E 550 offered a noticeable increase in power and responsiveness. The gear ratios were optimized for both highway cruising and quick overtaking maneuvers. The added weight of the V8 engine was noticeable, but the increased power more than compensated for it.
Equipment & Trim Levels
The E 550 typically came well-equipped, reflecting its position as a premium offering. Standard features 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, upgraded navigation system, rear-seat entertainment, and advanced driver-assistance systems like Distronic adaptive cruise control. Trim levels were relatively straightforward, with most customization options available as individual selections rather than distinct packages. The interior design emphasized luxury and comfort, with a focus on high-quality materials and a refined aesthetic.
Chassis & Braking
The E 550 utilized a fully independent suspension system, with multi-link setups at both the front and rear. Air suspension was often included, providing a comfortable ride and the ability to adjust ride height. The braking system consisted of ventilated discs at all four corners, providing ample stopping power. ABS (Anti-lock Braking System) was standard. The suspension was tuned to balance comfort and handling, offering a stable and predictable ride. Stabilizer bars were fitted front and rear to reduce body roll during cornering. The steering was hydraulic power-assisted, providing a responsive and precise feel.
Market Reception & Comparison
The E 550 was generally well-received by automotive critics, who praised its smooth power delivery, comfortable ride, and luxurious interior. However, its fuel economy was often cited as a drawback, particularly compared to the more fuel-efficient E 350 models. The E 550 offered a compelling alternative to the BMW 550i and Audi A6 4.2, providing a similar level of performance and luxury. In terms of reliability, the M273 engine proved to be generally robust, although preventative maintenance, particularly regarding the engine oil level, was crucial to avoid potential issues with the balance shaft.
Legacy
The E 550 (W211) remains a desirable used car, appreciated for its blend of performance, luxury, and relative reliability. The M273 engine, while requiring regular maintenance, is known for its longevity when properly cared for. Today, these vehicles can be found at reasonable prices, offering a significant amount of performance and refinement for the money. The E 550 represents a sweet spot in the W211 E-Class range, offering a more engaging driving experience than the base models without the higher running costs and complexity of the AMG variants. Its enduring appeal lies in its ability to deliver a classic Mercedes-Benz grand touring experience.
