The Mercedes-Benz CLS 63 AMG 4MATIC, produced from July 2014 to December 2017, represents the high-performance variant of the C218 facelifted CLS coupe. Positioned as the flagship model within the CLS range, it combined the elegant, four-door coupe styling with the potent power of Mercedes-AMG’s 5.5-liter V8 engine. This iteration of the CLS 63 aimed to deliver exhilarating performance alongside a degree of luxury and practicality, appealing to buyers seeking a distinctive and capable grand tourer. It was a key offering in the premium large car segment, competing with models like the Porsche Panamera and BMW 6 Series Gran Coupe.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | CLS |
| Generation | CLS coupe (C218 facelift, 2014) |
| Type | AMG CLS 63 V8 (557 Hp) 4MATIC AMG SPEEDSHIFT MCT |
| Start of production | July, 2014 |
| End of production | December, 2017 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 4 |
| Fuel consumption (urban) | 14.3-14.5 l/100 km (16.4 – 16.2 US mpg, 19.8 – 19.5 UK mpg, 7 – 6.9 km/l) |
| Fuel consumption (extra urban) | 8-8.2 l/100 km (29.4 – 28.7 US mpg, 35.3 – 34.4 UK mpg, 12.5 – 12.2 km/l) |
| Fuel consumption (combined) | 10.3-10.5 l/100 km (22.8 – 22.4 US mpg, 27.4 – 26.9 UK mpg, 9.7 – 9.5 km/l) |
| CO2 emissions | 239-244 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 3.7 sec |
| Acceleration 0 – 62 mph | 3.7 sec |
| Acceleration 0 – 60 mph | 3.5 sec |
| Maximum speed | 250 km/h (155.34 mph) – Electronically limited |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 3.4 kg/Hp, 297.9 Hp/tonne |
| Weight-to-torque ratio | 2.6 kg/Nm, 385 Nm/tonne |
| Power | 557 Hp @ 5500 rpm |
| Power per litre | 102 Hp/l |
| Torque | 720 Nm @ 1750-5250 rpm (531.04 lb.-ft. @ 1750-5250 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 157.981 |
| 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 | 10:1 |
| 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 | 1870 kg (4122.64 lbs.) |
| Max. weight | 2415 kg (5324.16 lbs.) |
| Max load | 545 kg (1201.52 lbs.) |
| Trunk (boot) space (minimum) | 520 l (18.36 cu. ft.) |
| Fuel tank capacity | 66 l (17.44 US gal | 14.52 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Length | 4967 mm (195.55 in.) |
| Width | 1881 mm (74.06 in.) |
| Width including mirrors | 2075 mm (81.69 in.) |
| Height | 1431 mm (56.34 in.) |
| Wheelbase | 2874 mm (113.15 in.) |
| Minimum turning circle | 11.25 m (36.91 ft.) |
| Drivetrain Architecture | All wheel drive (4×4) |
| Number of gears | 7 |
| Gearbox type | Automatic transmission AMG SPEEDSHIFT MCT |
| Front suspension | Coil spring, Independent multi-link suspension, Transverse stabilizer |
| Rear suspension | Independent multi-link suspension, Air suspension, Transverse stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Tires size (Front) | 255/35 R19 |
| Tires size (Rear) | 285/30 R19 |
| Wheel rims size (Front) | 9J x 19 |
| Wheel rims size (Rear) | 10J x 19 |
INTRODUCTION
The C218 CLS 63 AMG 4MATIC, introduced in 2014 as part of the facelift for the second-generation CLS, represented a significant evolution of the original “four-door coupe” concept. Built on the Mercedes-Benz 218 platform, it aimed to deliver a more refined and technologically advanced experience than its predecessor. The facelift brought revised styling, updated interior features, and, crucially, the availability of the 4MATIC all-wheel-drive system, enhancing both performance and all-weather capability. This model year saw a continuation of the 5.5-liter twin-turbocharged V8 engine, but with subtle refinements to improve efficiency and responsiveness. The CLS 63 AMG 4MATIC occupied the top tier of the CLS lineup, offering a compelling blend of luxury, performance, and distinctive styling.
Powertrain & Engine Architecture
At the heart of the CLS 63 AMG 4MATIC lies the M157.981 5.5-liter V8 engine. This engine, a cornerstone of AMG’s performance lineup for several years, features direct fuel injection, twin turbochargers, and a sophisticated cylinder deactivation system (AMG Cylinder Management). The cylinder deactivation system allows the engine to operate on four cylinders under light load conditions, improving fuel economy without significantly compromising performance. The engine utilizes a dual overhead camshaft (DOHC) valvetrain and a compression ratio of 10:1. The AMG SPEEDSHIFT MCT 7-speed automatic transmission, a wet-clutch transmission, was specifically tuned for rapid and precise gear changes. This transmission replaced the traditional torque converter automatic, offering a more direct connection to the engine and a sportier driving experience. The 4MATIC all-wheel-drive system distributes power between the front and rear axles, providing enhanced traction and stability, particularly in adverse weather conditions.
Driving Characteristics
The CLS 63 AMG 4MATIC delivers a truly exhilarating driving experience. The 557 horsepower and 720 lb-ft of torque provide effortless acceleration, with a 0-60 mph time of just 3.5 seconds. The AMG SPEEDSHIFT MCT transmission contributes to this performance with its quick and decisive gear changes. The 4MATIC all-wheel-drive system ensures excellent grip, allowing the car to put its power down effectively even on less-than-ideal surfaces. Compared to rear-wheel-drive versions of the CLS 63, the 4MATIC model offers increased stability and confidence-inspiring handling. While not as raw or visceral as some dedicated sports cars, the CLS 63 AMG 4MATIC provides a refined and comfortable ride, making it well-suited for long-distance grand touring. The air suspension system further enhances ride quality, adapting to road conditions and driving style.
Equipment & Trim Levels
The CLS 63 AMG 4MATIC came standard with a comprehensive array of luxury and performance features. Interior appointments included premium leather upholstery, AMG sport seats, and carbon fiber trim. Standard technology included a high-resolution infotainment system with navigation, a premium sound system, and a suite of driver-assistance features such as adaptive cruise control, lane-keeping assist, and blind-spot monitoring. Optional extras included a panoramic sunroof, a head-up display, and upgraded interior trim materials. The exterior styling was further enhanced by AMG-specific body styling, including a unique front fascia, side skirts, and rear diffuser.
Chassis & Braking
The CLS 63 AMG 4MATIC features a sophisticated chassis designed to deliver both comfort and handling precision. The front suspension utilizes a multi-link setup with coil springs and a transverse stabilizer bar, while the rear suspension employs an independent multi-link design with air suspension and a transverse stabilizer bar. The air suspension system allows for adjustable ride height and damping settings, providing a customizable driving experience. Braking duties are handled by ventilated discs on all four wheels, with high-performance calipers providing ample stopping power. The ABS (Anti-lock braking system) and electronic stability control systems further enhance safety and control.
Market Reception & Comparison
The CLS 63 AMG 4MATIC was generally well-received by automotive critics, who praised its powerful engine, refined handling, and luxurious interior. The addition of the 4MATIC all-wheel-drive system was seen as a significant improvement, enhancing the car’s usability in a wider range of conditions. Compared to the rear-wheel-drive CLS 63, the 4MATIC model offered increased stability and traction. Fuel economy, however, remained a concern, with combined fuel consumption figures around 22.8 mpg. In terms of reliability, the M157 engine proved to be generally robust, although some owners have reported issues with the fuel pump and turbochargers. Compared to rivals like the Porsche Panamera, the CLS 63 AMG 4MATIC offered a more distinctive and stylish alternative, albeit with a slightly less focused driving experience.
Legacy
The CLS 63 AMG 4MATIC (C218 facelift) remains a desirable vehicle in the used car market. Its combination of performance, luxury, and distinctive styling continues to appeal to enthusiasts. The M157 engine, while complex, is generally considered to be a durable and reliable powerplant when properly maintained. Regular servicing and attention to potential issues such as the fuel pump and turbochargers are essential for long-term reliability. The CLS 63 AMG 4MATIC represents a high point in the evolution of the four-door coupe segment, offering a compelling blend of performance and practicality that continues to resonate with buyers today.
