The Mercedes-Benz E 500 BlueEFFICIENCY V8 (408 Hp) 4MATIC, produced from August 2011 to January 2013, represented a high-performance variant within the W212 E-Class range. Positioned as a near-flagship model, it offered a compelling blend of luxury, performance, and all-weather capability. This model occupied the space between the more mainstream E350 and the even more exclusive E63 AMG, appealing to buyers seeking substantial power without the outright sporting focus of the AMG. It was primarily sold in markets where larger displacement engines and all-wheel drive were highly valued, including North America, Europe, and parts of Asia.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-class |
| Generation | E-class (W212) |
| Type | E 500 BlueEFFICIENCY V8 (408 Hp) 4MATIC 7G-TRONIC PLUS |
| Start of production | August, 2011 |
| End of production | January, 2013 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 13 l/100 km (18.1 US mpg, 21.7 UK mpg, 7.7 km/l) |
| Fuel consumption (extra urban) | 7.2 l/100 km (32.7 US mpg, 39.2 UK mpg, 13.9 km/l) |
| Fuel consumption (combined) | 9.4 l/100 km (25 US mpg, 30.1 UK mpg, 10.6 km/l) |
| CO2 emissions | 219 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.2 sec |
| Acceleration 0 – 62 mph | 5.2 sec |
| Acceleration 0 – 60 mph | 4.9 sec |
| Maximum speed | 250 km/h (155.34 mph) – Electronically limited |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 4.7 kg/Hp, 213.6 Hp/tonne |
| Weight-to-torque ratio | 3.2 kg/Nm, 314.1 Nm/tonne |
| Power | 408 Hp @ 5000-5750 rpm |
| Power per litre | 87.5 Hp/l |
| Torque | 600 Nm @ 1600-4750 rpm (442.54 lb.-ft. @ 1600-4750 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 278.922 |
| Engine displacement | 4663 cm3 (284.55 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 92.9 mm (3.66 in.) |
| Piston Stroke | 86 mm (3.39 in.) |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | BiTurbo, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Coolant capacity | 12.3 l (13 US qt | 10.82 UK qt) |
| Kerb Weight | 1910 kg (4210.83 lbs.) |
| Max. weight | 2510 kg (5533.6 lbs.) |
| Max load | 600 kg (1322.77 lbs.) |
| Trunk (boot) space (minimum) | 532 l (18.79 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 (with brakes) | 2100 kg (4629.71 lbs.) |
| Permitted trailer load (without brakes) | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 84 kg (185.19 lbs.) |
| Length | 4868 mm (191.65 in.) |
| Width | 1854 mm (72.99 in.) |
| Width including mirrors | 2071 mm (81.54 in.) |
| Height | 1471 mm (57.91 in.) |
| Wheelbase | 2874 mm (113.15 in.) |
| Front track | 1598 mm (62.91 in.) |
| Rear track | 1614 mm (63.54 in.) |
| Front overhang | 841 mm (33.11 in.) |
| Rear overhang | 1153 mm (45.39 in.) |
| Drag coefficient (Cd) | 0.28 |
| Minimum turning circle | 11.25 m (36.91 ft.) |
| Drivetrain Architecture | ICE driving all four wheels permanently |
| Drive wheel | All wheel drive (4×4) |
| Number of gears | 7 |
| Gearbox type | Automatic transmission G-TRONIC PLUS |
| Front suspension | Independent multi-link, Transverse stabilizer, Air suspension |
| Rear suspension | Independent multi-link, Air suspension, Transverse stabilizer |
| Front brakes | Ventilated discs, 360 mm |
| Rear brakes | Ventilated discs, 320 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic |
| Tires size | 245/40 R18 |
| Wheel rims size | 8.5J x 18 |
Powertrain & Engine Architecture
The heart of the E 500 BlueEFFICIENCY was the M278.922 4.6-liter V8 engine. This engine featured direct fuel injection, twin turbochargers, and an intercooler, enabling it to produce 408 horsepower and 442 lb-ft of torque. The ‘BlueEFFICIENCY’ designation indicated the inclusion of fuel-saving technologies such as cylinder deactivation, which shut down four cylinders during cruising to reduce fuel consumption. The engine utilized a double overhead camshaft (DOHC) valvetrain with four valves per cylinder. The 7G-TRONIC PLUS seven-speed automatic transmission was standard, offering smooth and relatively quick shifts. This transmission was known for its efficiency and adaptability, contributing to the car’s overall refinement.
Driving Characteristics
The E 500 4MATIC delivered a distinctly smooth and powerful driving experience. The twin-turbo V8 provided ample torque across a wide rev range, resulting in effortless acceleration. The 0-60 mph time of around 4.9 seconds was impressive for a large luxury sedan. While not as overtly sporty as the E63 AMG, the E 500 offered a more relaxed and refined character. The 7G-TRONIC PLUS transmission was well-matched to the engine, providing seamless gear changes. The 4MATIC all-wheel-drive system enhanced traction and stability, particularly in inclement weather. Compared to the E350, the E 500 offered a significant performance upgrade, while the E63 AMG prioritized track-focused handling and a more aggressive driving experience.
Equipment & Trim Levels
The E 500 BlueEFFICIENCY typically came well-equipped with standard features including 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 a driver assistance package with features like lane keeping assist and blind-spot monitoring. Interior color choices were varied, allowing for a degree of personalization. The dashboard layout was typical of the W212 E-Class, emphasizing a blend of modern technology and classic Mercedes-Benz design.
Chassis & Braking
The E 500 4MATIC featured an independent multi-link suspension at all four corners, often paired with Mercedes’ AIRMATIC air suspension system. This provided a comfortable ride quality while maintaining good handling characteristics. The air suspension allowed for adjustable ride height and damping settings. Braking duties were handled by ventilated disc brakes on all four wheels, providing ample stopping power. The E 500 typically featured larger brake rotors than the E350 to accommodate the increased weight and performance.
Market Reception & Comparison
Critics generally praised the E 500 BlueEFFICIENCY for its powerful engine, refined ride, and luxurious interior. It was seen as a strong competitor to other high-performance luxury sedans, such as the BMW 550i and the Audi A8. Fuel economy, while not exceptional for a V8, was considered reasonable given the car’s performance. Reliability was generally good, although some owners reported minor issues with electronic components. Compared to the E350, the E 500 offered a substantial performance boost, but at a higher price point. The E63 AMG, while more powerful and engaging to drive, was significantly more expensive and less comfortable.
Legacy
The W212 E 500 BlueEFFICIENCY V8 4MATIC has become a desirable used car, appreciated for its blend of performance, luxury, and reliability. The M278 engine, while complex, has proven to be relatively durable with proper maintenance. The 7G-TRONIC PLUS transmission is also known for its longevity. Today, these cars offer a compelling value proposition for buyers seeking a high-performance luxury sedan at a more affordable price point. The combination of a powerful V8 engine, all-wheel drive, and a comfortable interior continues to appeal to enthusiasts and discerning drivers alike.
