Technical Specifications
| Brand | Mercedes-Benz |
| Model | CL |
| Generation | CL (C216, facelift 2010) |
| Type | CL 500 BlueEFFICIENCY V8 (435 Hp) 7G-TRONIC PLUS |
| Start of production | 2010 |
| End of production | 2013 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 13.5-13.9 l/100 km (17.4 – 16.9 US mpg) |
| Fuel consumption (extra urban) | 7.2-7.6 l/100 km (32.7 – 30.9 US mpg) |
| Fuel consumption (combined) | 9.5-9.9 l/100 km (24.8 – 23.8 US mpg) |
| CO2 emissions | 224-232 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.9 sec |
| Acceleration 0 – 60 mph | 4.7 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 4.6 kg/Hp |
| Weight-to-torque ratio | 2.9 kg/Nm |
| Power | 435 Hp @ 5250 rpm |
| Torque | 700 Nm @ 1800-3500 rpm (516.29 lb.-ft.) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 278.920 |
| 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.) |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | BiTurbo, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 8.5 l (8.98 US qt | 7.48 UK qt) |
| Kerb Weight | 1995 kg (4398.22 lbs.) |
| Max. weight | 2585 kg (5698.95 lbs.) |
| Max load | 590 kg (1300.73 lbs.) |
| Trunk (boot) space | 490 l (17.3 cu. ft.) |
| Fuel tank capacity | 83 l (21.93 US gal | 18.26 UK gal) |
| Length | 5095 mm (200.59 in.) |
| Width | 1871 mm (73.66 in.) |
| Width including mirrors | 2130 mm (83.86 in.) |
| Height | 1419 mm (55.87 in.) |
| Wheelbase | 2955 mm (116.34 in.) |
| Front track | 1601 mm (63.03 in.) |
| Rear track | 1607 mm (63.27 in.) |
| Front overhang | 947 mm (37.28 in.) |
| Rear overhang | 1193 mm (46.97 in.) |
| Ride height | 127 mm (5 in.) |
| Minimum turning circle | 11.6 m (38.06 ft.) |
| Drivetrain | Rear wheel drive |
| Number of gears | 7 |
| Gearbox type | Automatic transmission G-TRONIC PLUS |
The Mercedes-Benz CL 500 BlueEFFICIENCY, produced from 2010 to 2013, was a significant evolution of the iconic CL-Class grand tourer, specifically within the C216 facelift generation. Positioned as a high-performance variant, it bridged the gap between the CL 350 and the more potent CL 63 AMG. This model combined a sophisticated V8 engine with Mercedes’ advanced 7G-TRONIC PLUS automatic transmission, offering a blend of luxury, performance, and efficiency. The C216 CL, overall, was the second generation of the CL-Class, succeeding the W215 and setting a benchmark for coupe design and technology during its production run.
Powertrain & Engine Architecture
The CL 500 BlueEFFICIENCY’s core is the M278.920 4.6-liter V8 engine. This engine is a testament to modern engineering, boasting direct fuel injection, twin turbochargers, and an aluminum alloy block. The direct injection system precisely meters fuel, optimizing combustion and reducing emissions. The twin-turbochargers, nestled within the V, deliver instant throttle response and a broad torque curve. The engine utilizes a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, maximizing airflow and power. The 7G-TRONIC PLUS seven-speed automatic transmission was specifically calibrated to complement the V8’s characteristics. It offered smooth, precise shifts and a wide range of gear ratios, optimizing both acceleration and fuel economy. A manual shift mode was also available for drivers desiring more control.
Driving Characteristics
The CL 500 BlueEFFICIENCY provided a refined and powerful driving experience. The 435 horsepower and 516 lb-ft of torque enabled effortless acceleration, achieving a 0-60 mph time of approximately 4.7 seconds. The 7G-TRONIC PLUS transmission was instrumental in this performance, seamlessly shifting gears and maintaining the engine within its optimal power band. Compared to the CL 350, the 500 offered a noticeable power increase and improved responsiveness. While not as aggressively tuned as the CL 63 AMG, the 500 delivered ample power for both comfortable cruising and spirited driving. The suspension, tuned for comfort, effectively absorbed road imperfections, providing a smooth and isolated ride. The steering was precise and well-weighted, offering a confident feel at all speeds.
Equipment & Trim Levels
The CL 500 BlueEFFICIENCY came standard with a comprehensive suite of luxury features. Leather upholstery, heated and ventilated front seats, a premium sound system, and a navigation system were all standard. The interior was meticulously crafted with high-quality materials and attention to detail. Optional extras included a panoramic sunroof, massaging seats, a rear-seat entertainment system, and advanced driver-assistance systems like Distronic Plus adaptive cruise control and lane-keeping assist. The dashboard layout was elegant and functional, with a large central display screen controlling many vehicle functions. A wide range of interior color choices allowed buyers to personalize their CL 500.
Chassis & Braking
The CL 500 BlueEFFICIENCY featured a sophisticated chassis designed for both comfort and handling. The front suspension utilized an independent multi-link setup, while the rear suspension also employed a multi-link design. This configuration minimized body roll and provided a stable, controlled ride. The braking system consisted of ventilated discs on all four wheels, providing ample stopping power. Anti-lock brakes (ABS) and electronic stability control (ESC) were standard, enhancing safety and control. The CL 500’s weight distribution was carefully optimized to improve handling balance.
Market Reception & Comparison
Critics generally praised the CL 500 BlueEFFICIENCY for its balance of performance, luxury, and efficiency. The engine was lauded for its smooth power delivery and responsiveness, while the 7G-TRONIC PLUS transmission received positive reviews for its seamless shifting. Fuel economy, while not exceptional for a vehicle of this size and performance, was considered respectable for its class. Compared to the CL 350, the 500 offered a significant performance upgrade, justifying its higher price for buyers seeking more power. However, the CL 63 AMG remained the choice for those prioritizing ultimate performance. Reliability reports generally indicated that the M278 engine was a robust and dependable unit, although maintenance costs could be substantial due to the engine’s complexity.
Legacy
The Mercedes-Benz CL 500 BlueEFFICIENCY remains a desirable grand tourer in the used car market. Its combination of luxury, performance, and reasonable fuel economy has ensured its continued appeal. The M278 engine, while complex, has proven reasonably reliable with proper maintenance. However, potential buyers should be aware of the potential for costly repairs, particularly related to the turbochargers and fuel injection system. The C216 CL-Class is remembered as a technologically advanced and beautifully designed coupe that set a high standard for its competitors. The CL 500 BlueEFFICIENCY represents a sweet spot in the lineup, offering a compelling balance of attributes that continue to attract enthusiasts today.
