The Mercedes-Benz CLS 500 V8 4MATIC, part of the X218 CLS Shooting Brake facelift introduced in 2014, represented a compelling blend of luxury, performance, and practicality within the Mercedes-Benz lineup. Produced through 2015, this variant occupied the upper echelon of the CLS range, offering a significant step up in power and refinement compared to the four-cylinder and V6 models. It aimed to appeal to buyers seeking a stylish, high-performance wagon capable of both spirited driving and comfortable long-distance travel. The X218 generation, itself a pioneering design, successfully merged the elegance of a coupe with the versatility of a station wagon, creating a niche segment that continues to resonate with enthusiasts.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | CLS |
| Generation | CLS Shooting Brake (X218, facelift 2014) |
| Type | CLS 500 V8 (408 Hp) 4MATIC 7G-TRONIC PLUS |
| Start of production | 2014 |
| End of production | 2015 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 13.3 l/100 km (17.7 US mpg, 21.2 UK mpg, 7.5 km/l) |
| Fuel consumption (extra urban) | 7.8 l/100 km (30.2 US mpg, 36.2 UK mpg, 12.8 km/l) |
| Fuel consumption (combined) | 9.8 l/100 km (24 US mpg, 28.8 UK mpg, 10.2 km/l) |
| CO2 emissions | 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 6 |
| 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 |
| Fuel injection system | Direct injection |
| Engine aspiration | BiTurbo, Intercooler |
| Engine oil capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Coolant | 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 | 4953 mm (195 in.) |
| Width | 1881 mm (74.06 in.) |
| Height | 1419 mm (55.87 in.) |
| Wheelbase | 2874 mm (113.15 in.) |
| Front track | 1596 mm (62.83 in.) |
| Rear (Back) track | 1629 mm (64.13 in.) |
| Minimum turning circle | 11.53 m (37.83 ft.) |
| Drivetrain Architecture | All wheel drive (4×4) |
| Number of gears | 7 |
| Gearbox type | Automatic transmission G-TRONIC |
| 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 |
| 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 4.7-liter V8 engine. This powerplant is a marvel of modern engineering, featuring direct fuel injection, twin turbochargers, and an intercooler. The direct injection system precisely meters fuel into the combustion chambers, optimizing combustion efficiency and power output. The twin-turbochargers, strategically positioned within the V of the engine, minimize turbo lag and provide a broad, flat torque curve. The engine produces 408 horsepower at 5000-5750 rpm and a substantial 600 Nm (442.54 lb-ft) of torque between 1600 and 4750 rpm. This power is channeled through Mercedes-Benz’s 7G-TRONIC PLUS seven-speed automatic transmission, known for its smooth and responsive shifts. The 7G-TRONIC PLUS is designed to adapt to driving style, offering both comfort-oriented and sport-oriented shift programs. The 4MATIC all-wheel-drive system ensures optimal traction in all weather conditions, distributing power between the front and rear axles as needed.
Driving Characteristics
The CLS 500 V8 4MATIC delivers a driving experience that is both refined and exhilarating. The abundant torque from the V8 engine provides effortless acceleration, with a 0-60 mph time of around 4.7 seconds. The 7G-TRONIC transmission complements the engine perfectly, providing seamless gear changes and contributing to a smooth and comfortable ride. While not as overtly sporty as some dedicated performance vehicles, the CLS 500 offers a satisfying level of engagement for drivers who appreciate a blend of power and luxury. Compared to the CLS 350 models with smaller engines, the V8 provides a significantly more powerful and responsive experience. The 4MATIC system enhances stability and confidence, particularly in inclement weather. The gear ratios are tuned for a balance between acceleration and fuel efficiency, with higher gears designed for relaxed cruising on the highway.
Equipment & Trim Levels
The CLS 500 V8 4MATIC came standard with a comprehensive array of luxury features. Interior appointments typically included premium leather upholstery, wood trim, and a high-quality audio system. Standard equipment also included features such as dual-zone automatic climate control, power-adjustable front seats with memory function, and a multi-function steering wheel. Optional extras included features such as a panoramic sunroof, advanced driver-assistance systems (like adaptive cruise control and lane-keeping assist), and upgraded audio systems from Harman Kardon or Bang & Olufsen. The CLS 500 generally represented a higher trim level, offering more standard features and a more luxurious interior compared to the base CLS models.
Chassis & Braking
The CLS 500 V8 4MATIC features a sophisticated chassis designed to balance comfort and handling. The front suspension utilizes a McPherson strut design with coil springs and an anti-roll bar, while the rear suspension employs a multi-link setup. This configuration provides a comfortable ride while maintaining good control and stability. The braking system consists of ventilated discs on all four wheels, providing ample stopping power. Anti-lock braking system (ABS) is standard, enhancing safety and control during emergency braking situations. The suspension tuning is geared towards providing a comfortable ride, but it also offers a reasonable level of body control during cornering.
Market Reception & Comparison
The CLS 500 V8 4MATIC was generally well-received by automotive critics, who praised its powerful engine, luxurious interior, and stylish design. However, some reviewers noted that the fuel economy was relatively low, especially considering the size and weight of the vehicle. Compared to the CLS 400 with its V6 engine, the CLS 500 offered a significant performance advantage but came at a higher price point. The CLS 500 also provided a more refined and luxurious experience than the four-cylinder CLS 250 models. Its main competitors included the Audi A7 Sportback and the BMW 6 Series Gran Coupe.
Legacy
The M278 V8 engine, found in the CLS 500, has proven to be a relatively reliable powerplant when properly maintained. Common issues, if any, often relate to the turbochargers or fuel system components. The 7G-TRONIC transmission is also generally reliable, but regular fluid changes are essential for long-term durability. In the used car market, the CLS 500 V8 4MATIC remains a desirable option for buyers seeking a stylish and powerful luxury wagon. However, potential buyers should be aware of the higher maintenance costs associated with a high-performance vehicle like this. The X218 CLS Shooting Brake, and particularly the 500 V8 variant, helped establish the four-door coupe/wagon segment and continues to be appreciated for its unique blend of style, performance, and practicality.
