The Mercedes-Benz CLS 500 V8 (408 Hp) 4MATIC, produced between 2012 and 2014, represents a compelling blend of luxury, performance, and practicality within the X218 CLS Shooting Brake model range. This variant occupied the upper echelon of the lineup, offering a significant step up in power and refinement compared to the four-cylinder and V6 options. The CLS Shooting Brake, introduced as a more versatile alternative to the traditional CLS coupe, aimed to capture buyers seeking a stylish and sporty vehicle with enhanced cargo capacity. This particular model combined a potent twin-turbocharged V8 engine with Mercedes-Benz’s 4MATIC all-wheel-drive system and the 7G-TRONIC PLUS automatic transmission, creating a grand touring experience focused on effortless power delivery and all-weather capability.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | CLS |
| Generation | CLS Shooting Brake (X218) |
| Type | CLS 500 V8 (408 Hp) 4MATIC 7G-TRONIC PLUS |
| Start of production | 2012 |
| End of production | 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 13.4-13.3 l/100 km (17.6 – 17.7 US mpg, 21.1 – 21.2 UK mpg, 7.5 – 7.5 km/l) |
| Fuel consumption (extra urban) | 7.9-7.8 l/100 km (29.8 – 30.2 US mpg, 35.8 – 36.2 UK mpg, 12.7 – 12.8 km/l) |
| Fuel consumption (combined) | 9.9-9.8 l/100 km (23.8 – 24 US mpg, 28.5 – 28.8 UK mpg, 10.1 – 10.2 km/l) |
| CO2 emissions | 231-229 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.9 sec |
| Acceleration 0 – 62 mph | 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 | 4.9 kg/Hp, 203.5 Hp/tonne |
| Weight-to-torque ratio | 3.3 kg/Nm, 299.3 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 |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| 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 | 2005 kg (4420.27 lbs.) |
| Max. weight | 2530 kg (5577.7 lbs.) |
| Max load | 525 kg (1157.43 lbs.) |
| Trunk (boot) space – minimum | 590 l (20.84 cu. ft.) |
| Trunk (boot) space – maximum | 1550 l (54.74 cu. ft.) |
| Fuel tank capacity | 80 l (21.13 US gal | 17.6 UK gal) |
| Length | 4956 mm (195.12 in.) |
| Width | 1881 mm (74.06 in.) |
| Height | 1416 mm (55.75 in.) |
| Wheelbase | 2874 mm (113.15 in.) |
| Front track | 1596 mm (62.83 in.) |
| Rear track | 1626 mm (64.02 in.) |
| Minimum turning circle | 11.27 m (36.98 ft.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears | 7 |
| Gearbox type | Automatic transmission G-TRONIC PLUS |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 255/40 R18 |
| Wheel rims size | 18 |
Powertrain & Engine Architecture
At the heart of the CLS 500 V8 4MATIC lies the M278.922 engine, a 4.6-liter, twin-turbocharged V8. This engine is a cornerstone of Mercedes-Benz’s performance strategy during this period, featuring direct fuel injection and variable valve timing on both intake and exhaust sides. The twin turbochargers, positioned within the engine’s ‘V’, provide rapid response and minimize turbo lag, delivering a broad and flat torque curve. The 7G-TRONIC PLUS automatic transmission, a seven-speed unit, is renowned for its smooth and quick shifts. It features a torque converter lock-up clutch that engages across multiple gears, improving fuel efficiency and responsiveness. The 4MATIC all-wheel-drive system utilizes a multi-plate clutch to distribute torque between the front and rear axles, enhancing traction and stability in various driving conditions.
Driving Characteristics
The CLS 500 V8 4MATIC delivers a refined and powerful driving experience. The engine’s 600 Nm (442.54 lb-ft) of torque, available from a low 1600 rpm, provides effortless acceleration in virtually any gear. The 0-60 mph sprint takes approximately 4.7 seconds, making it a genuinely quick vehicle. The 7G-TRONIC PLUS transmission complements the engine well, providing seamless gear changes and contributing to a relaxed cruising experience. Compared to the CLS 350 with its V6 engine, the V8 offers a significant increase in power and torque, resulting in noticeably quicker acceleration and a more authoritative feel. While not as overtly sporty as some of its rivals, the CLS 500 prioritizes comfort and refinement without sacrificing performance.
Equipment & Trim Levels
The CLS 500 V8 4MATIC came standard with a comprehensive array of luxury features. These included leather upholstery, heated and ventilated front seats, a premium sound system, a navigation system, and a panoramic sunroof. Standard safety features included adaptive cruise control, lane-keeping assist, and blind-spot monitoring. Optional extras included a head-up display, massaging seats, and a rear-seat entertainment system. Interior trim options ranged from wood veneers to carbon fiber, allowing buyers to personalize the cabin to their preferences. The dashboard layout was typical of Mercedes-Benz at the time, featuring a blend of analog gauges and a central infotainment screen.
Chassis & Braking
The CLS 500 V8 4MATIC features a sophisticated suspension system designed to balance comfort and handling. The front suspension utilizes McPherson struts with coil springs and an anti-roll bar, while the rear suspension employs a multi-link setup. This configuration provides a comfortable ride while minimizing body roll during cornering. The braking system consists of ventilated discs on all four wheels, providing ample stopping power. The ABS (Anti-lock braking system) and Electronic Stability Program (ESP) enhance safety by preventing wheel lock-up and maintaining vehicle control in challenging situations.
Market Reception & Comparison
The CLS 500 V8 4MATIC was generally well-received by automotive critics. It was praised for its powerful engine, luxurious interior, and refined driving experience. However, some reviewers noted that the fuel economy was relatively poor, especially considering the vehicle’s size and weight. Compared to its competitors, such as the BMW 6 Series Gran Coupe and the Audi A7 Sportback, the CLS 500 offered a unique blend of style, performance, and practicality. The 4MATIC all-wheel-drive system gave it an advantage in inclement weather conditions. The CLS 350 offered better fuel economy, while the CLS 63 AMG provided even more extreme performance.
Legacy
The M278 engine family, including the one found in the CLS 500 V8 4MATIC, has proven to be relatively reliable, although preventative maintenance is crucial. Common issues include occasional oil leaks and potential problems with the turbochargers. The 7G-TRONIC PLUS transmission is also generally durable, but regular fluid changes are essential. Today, the CLS 500 V8 4MATIC represents a compelling value proposition in the used car market, offering a significant amount of luxury and performance for the price. Its distinctive styling and powerful engine continue to appeal to buyers seeking a stylish and capable grand tourer.
