The Mercedes-Benz E-Class Coupe (C207) E 550 V8, produced from 2009 to 2011, represented the performance pinnacle of the second-generation C207 coupe range. Positioned as the flagship model, it offered a luxurious grand touring experience with a powerful naturally aspirated V8 engine. The C207 E-Class Coupe, launched in 2009, aimed to blend the elegance of a coupe with the practicality and refinement expected of the E-Class nameplate, competing directly with rivals like the BMW 3 Series Coupe and Audi A5 Coupe. The E 550, with its substantial power output, catered to buyers seeking a more dynamic and engaging driving experience than the more common four-cylinder and V6 variants.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-Class |
| Generation | E-Class Coupe (C207) |
| Type (Engine) | E 550 V8 (382 Hp) 7G-TRONIC |
| Start of production | 2009 |
| End of production | 2011 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (economy) – urban (EPA) | 15.7 l/100 km (15 US mpg, 18 UK mpg, 6.4 km/l) |
| Fuel consumption (economy) – extra urban (EPA) | 10.2 l/100 km (23.1 US mpg, 27.7 UK mpg, 9.8 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 60 mph | 5 sec |
| Weight-to-power ratio | 4.5 kg/Hp, 223.3 Hp/tonne |
| Weight-to-torque ratio | 3.2 kg/Nm, 309.8 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 | 7.6 l (8.03 US qt | 6.69 UK qt) |
| Kerb Weight | 1711 kg (3772.11 lbs.) |
| Trunk (boot) space – minimum | 450 l (15.89 cu. ft.) |
| Fuel tank capacity | 66 l (17.44 US gal | 14.52 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Length | 4698 mm (184.96 in.) |
| Width | 1786 mm (70.31 in.) |
| Width including mirrors | 2015 mm (79.33 in.) |
| Height | 1397 mm (55 in.) |
| Wheelbase | 2760 mm (108.66 in.) |
| Front track | 1538 mm (60.55 in.) |
| Rear (Back) track | 1544 mm (60.79 in.) |
| Front overhang | 855 mm (33.66 in.) |
| Rear overhang | 1083 mm (42.64 in.) |
| Drag coefficient (Cd) | 0.28 |
| Minimum turning circle (turning diameter) | 10.95 m (35.93 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 7 gears, automatic transmission G-TRONIC |
| Front suspension | Coil spring, Independent multi-link suspension, Transverse stabilizer |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | Front wheel tires: 235/40 R18; 235/35 R19Rear wheel tires: 255/35 R18; 255/30 R19 |
| Wheel rims size | Front wheel rims: 8J x 18; 8J x 19; 8.5J x 19Rear wheel rims: 8.5J x 18; 8.5J x 19 |
Powertrain & Engine Architecture
The heart of the E 550 Coupe was the M273 5.5-liter naturally aspirated V8 engine. This engine, a mainstay of Mercedes-Benz’s performance lineup during the late 2000s, 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 382 horsepower at 6000 rpm and 390 lb-ft of torque between 2800 and 4800 rpm. The M273 was known for its smooth power delivery and distinctive V8 sound. Paired with the engine was the 7G-TRONIC seven-speed automatic transmission. This transmission offered smooth and relatively quick shifts, contributing to the car’s refined driving experience. The 7G-TRONIC featured a torque converter lock-up clutch to improve fuel efficiency at cruising speeds.
Driving Characteristics
The E 550 Coupe delivered a distinctly grand touring experience. The 5.5-liter V8 provided ample power for effortless acceleration and comfortable highway cruising. The 0-60 mph sprint was dispatched in around 5 seconds. While not as overtly sporty as some of its rivals, the E 550 offered a balanced ride and handling. The 7G-TRONIC transmission, while smooth, wasn’t particularly aggressive in its shift programming, prioritizing comfort over outright performance. Compared to the E 350 Coupe (with its V6 engine), the E 550 offered a significant boost in power and torque, resulting in a more responsive and engaging driving experience. The E 550 also felt more stable at higher speeds due to its increased weight and more sophisticated suspension components.
Equipment & Trim Levels
The E 550 Coupe came standard with a generous array of luxury features, including leather upholstery, wood trim, dual-zone automatic climate control, a premium sound system, and power-adjustable front seats with memory function. Optional extras included a panoramic sunroof, a navigation system, adaptive cruise control, and upgraded leather options. The E 550 was typically equipped with larger wheels and tires than the base E-Class Coupe models, further enhancing its visual appeal and handling capabilities. Interior color choices were extensive, allowing buyers to personalize their vehicle to their preferences.
Chassis & Braking
The C207 E-Class Coupe featured a sophisticated chassis design with a multi-link suspension at all four corners. The E 550 benefitted from slightly stiffer spring rates and dampers compared to the lower-powered models, improving handling and reducing body roll. Braking duties were handled by ventilated discs at all four wheels, providing ample stopping power. The E 550 also came standard with Mercedes-Benz’s ABS anti-lock braking system and electronic stability control. Steering was via a hydraulic power steering system, offering a balanced feel and good feedback.
Market Reception & Comparison
The E 550 Coupe was generally well-received by automotive critics, who praised its powerful engine, luxurious interior, and comfortable ride. However, some reviewers noted that its handling wasn’t as sharp as some of its rivals, such as the BMW 3 Series Coupe. Fuel economy was also a concern, with the E 550 returning relatively low MPG figures compared to the four-cylinder and V6 models. In terms of reliability, the M273 engine was generally considered to be robust, but preventative maintenance, particularly regarding the valve cover gaskets and oil cooler lines, was crucial to avoid costly repairs. Compared to the E 350 Coupe, the E 550 commanded a significant price premium, reflecting its higher performance and more luxurious appointments.
Legacy
The C207 E-Class Coupe E 550 V8 remains a desirable used car today, particularly for enthusiasts seeking a comfortable and powerful grand tourer. The M273 engine, while aging, is still capable of providing years of reliable service with proper maintenance. Parts availability is generally good, although some components can be expensive. The E 550 Coupe represents a sweet spot in the Mercedes-Benz lineup, offering a blend of luxury, performance, and refinement that is difficult to match in more modern vehicles. Its naturally aspirated V8 engine and elegant styling have cemented its place as a classic among Mercedes-Benz enthusiasts.
