The Mercedes-Benz E 550 4MATIC, produced between 2009 and 2011, represented the high-performance variant within the W212 E-Class sedan range. Positioned as the flagship engine option before the introduction of the AMG models, it offered a blend of luxury, performance, and all-weather capability. This model utilized a naturally aspirated 5.5-liter V8 engine paired with a 7G-TRONIC automatic transmission and Mercedes’ 4MATIC all-wheel-drive system. It served as a compelling alternative for buyers seeking substantial power without the more aggressive styling and firmer ride of the E63 AMG.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-class |
| Generation | E-class (W212) |
| Type | E 550 V8 (382 Hp) 4MATIC 7G-TRONIC |
| Start of production | 2009 |
| End of production | 2011 |
| 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) |
| Fuel consumption (extra urban) | 10.2 l/100 km (23.1 US mpg, 27.7 UK mpg) |
| Fuel consumption (combined) | 13.1 l/100 km (18 US mpg, 21.6 UK mpg) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 60 mph | 5.3 sec |
| Maximum speed | 210 km/h (130.49 mph) – Electronically limited |
| Weight-to-power ratio | 4.9 kg/Hp |
| Weight-to-torque ratio | 3.6 kg/Nm |
| 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 273.970 |
| 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 |
| Valvetrain | DOHC |
| Engine oil capacity | 8.5 l (8.98 US qt | 7.48 UK qt) |
| Coolant capacity | 10.3 l (10.88 US qt | 9.06 UK qt) |
| Kerb Weight | 1884-1920 kg (4153.51 – 4232.88 lbs.) |
| Max. weight | 2350 kg (5180.86 lbs.) |
| Max load | 430-466 kg (947.99 – 1027.35 lbs.) |
| Trunk (boot) space | 540 l (19.07 cu. ft.) |
| Fuel tank capacity | 80 l (21.13 US gal | 17.6 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load (braked) | 1588 kg (3500.94 lbs.) |
| Permitted trailer load (unbraked) | 750 kg (1653.47 lbs.) |
| Length | 4868 mm (191.65 in.) |
| Width | 1854 mm (72.99 in.) |
| Width with mirrors folded | 1927 mm (75.87 in.) |
| Width including mirrors | 2071 mm (81.54 in.) |
| Height | 1447 mm (56.97 in.) |
| Wheelbase | 2874 mm (113.15 in.) |
| Front track | 1580 mm (62.2 in.) |
| Rear track | 1599 mm (62.95 in.) |
| Front overhang | 841 mm (33.11 in.) |
| Rear overhang | 1153 mm (45.39 in.) |
| Ride height | 140 mm (5.51 in.) |
| Drag coefficient (Cd) | 0.28 |
| Turning circle | 11.25 m (36.91 ft.) |
| Drivetrain | All wheel drive (4×4) |
| Gearbox | 7 gears, automatic transmission G-TRONIC |
| Front suspension | Independent multi-link, Air suspension |
| Rear suspension | Independent multi-link, Air suspension |
| Front brakes | Ventilated discs, 344×32 mm |
| Rear brakes | Ventilated discs, 320×24 mm |
| Steering | Steering rack and pinion, Hydraulic Power Steering |
| Tires | 245/40 R18 |
| Wheel rims | 8.5J x 18 |
INTRODUCTION
The W212 E-Class, produced from 2009 to 2016, represented a significant evolution for Mercedes-Benz’s mid-size executive car. The E 550 4MATIC, introduced early in the W212’s lifecycle, offered a compelling blend of performance and luxury. It filled the gap between the more mainstream E350 models and the high-performance E63 AMG, appealing to buyers who desired a powerful and refined driving experience with the added security of all-wheel drive. The 4MATIC system was particularly important in regions experiencing inclement weather, enhancing the vehicle’s usability year-round.
Powertrain & Engine Architecture
At the heart of the E 550 4MATIC lies the M273.970 5.5-liter naturally aspirated V8 engine. This engine, a cornerstone of Mercedes-Benz’s powertrain lineup for several years, is renowned for its smooth power delivery and robust construction. It features a three-valve-per-cylinder design (two intake, one exhaust) and utilizes multi-port fuel injection. The engine’s block is constructed from aluminum alloy, contributing to weight reduction. The 7G-TRONIC automatic transmission, a seven-speed unit, was specifically calibrated to complement the V8’s characteristics. This transmission offered smooth and responsive shifts, and included a manual shift mode for greater driver control. The 4MATIC system is a full-time all-wheel-drive system, distributing power between the front and rear axles based on available traction.
Driving Characteristics
The E 550 4MATIC delivered a noticeably more engaging driving experience than the E350 models. The 382 horsepower and 390 lb-ft of torque provided brisk acceleration, with 0-60 mph times consistently around 5.3 seconds. While not as overtly sporty as the E63 AMG, the E 550 offered ample power for confident overtaking and highway cruising. The 7G-TRONIC transmission’s gear ratios were optimized for both performance and fuel efficiency. The 4MATIC system provided excellent grip in all conditions, enhancing stability and confidence, particularly on wet or snowy roads. The air suspension, standard on this model, contributed to a comfortable and controlled ride quality.
Equipment & Trim Levels
The E 550 4MATIC was generously equipped as standard. Key features included leather upholstery, wood trim, a premium sound system, dual-zone automatic climate control, and a power sunroof. Optional extras included a navigation system, rear-seat entertainment, adaptive cruise control, and parking assistance packages. Interior color choices were varied, allowing for a degree of personalization. The dashboard layout was typical of the W212 E-Class, characterized by a blend of traditional Mercedes-Benz elegance and modern technology.
Chassis & Braking
The E 550 4MATIC featured an independent multi-link suspension at both the front and rear, enhanced by Mercedes’ AIRMATIC air suspension system. This system automatically adjusted the ride height and damping characteristics based on road conditions and driving style, providing a comfortable and controlled ride. Braking duties were handled by ventilated disc brakes at all four corners. The anti-lock braking system (ABS) and electronic stability program (ESP) were standard, providing enhanced safety and control. The E 550 typically featured larger diameter wheels and tires compared to the base E-Class models, further contributing to its enhanced handling characteristics.
Market Reception & Comparison
Critics generally praised the E 550 4MATIC for its powerful engine, refined ride, and all-weather capability. It was seen as a strong alternative to BMW’s 550i and Audi’s A6 4.2. However, its fuel economy was a point of criticism, as the 5.5-liter V8 consumed significantly more fuel than the smaller displacement engines offered in the E-Class range. Compared to the E63 AMG, the E 550 offered a more comfortable and less aggressive driving experience, appealing to buyers who prioritized luxury and refinement over outright performance. Reliability was generally good, although the complex AIRMATIC suspension system could be prone to issues over time.
Legacy
The E 550 4MATIC, while not as widely produced as some other E-Class variants, has developed a following among enthusiasts who appreciate its combination of power, luxury, and all-wheel-drive capability. The M273 engine is known for its durability, and well-maintained examples continue to provide reliable service. On the used car market, the E 550 4MATIC commands a premium over the more common E350 models, reflecting its higher performance and more exclusive status. The car represents a high point in Mercedes-Benz’s naturally aspirated V8 engine development, offering a unique and rewarding driving experience.
