The Mercedes-Benz CLS 63 AMG, specifically the C218 generation produced between June 2013 and September 2014, represents a high-performance iteration of the CLS four-door coupe. Positioned as the flagship variant within the C218 lineup, it offered a compelling blend of luxury, performance, and technology. This model distinguished itself with its potent 5.5-liter twin-turbocharged V8 engine, paired with the AMG SPEEDSHIFT MCT seven-speed automatic transmission and a standard 4MATIC all-wheel-drive system. It aimed to deliver exhilarating performance while maintaining a degree of everyday usability, appealing to buyers seeking a more dynamic alternative to traditional luxury sedans.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | CLS |
| Generation | CLS coupe (C218) |
| Type | AMG CLS 63 V8 (557 Hp) 4MATIC AMG SPEEDSHIFT MCT |
| Start of production | June, 2013 |
| End of production | September, 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 4 |
| Fuel consumption (urban) | 14.4 l/100 km (16.3 US mpg, 19.6 UK mpg) |
| Fuel consumption (extra urban) | 8 l/100 km (29.4 US mpg, 35.3 UK mpg) |
| Fuel consumption (combined) | 10.4 l/100 km (22.6 US mpg, 27.2 UK mpg) |
| CO2 emissions | 243 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 |
| Weight-to-torque ratio | 2.6 kg/Nm |
| Power | 557 Hp @ 5250-5750 rpm |
| Power per litre | 102 Hp/l |
| Torque | 720 Nm @ 1750-5250 rpm (531.04 lb.-ft.) |
| 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 | 4996 mm (196.69 in.) |
| Width | 1881 mm (74.06 in.) |
| Width including mirrors | 2075 mm (81.69 in.) |
| Height | 1411 mm (55.55 in.) |
| Wheelbase | 2874 mm (113.15 in.) |
| Front track | 1594 mm (62.76 in.) |
| Rear track | 1626 mm (64.02 in.) |
| Minimum turning circle | 11.75 m (38.55 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, 360×36 mm |
| Rear brakes | Ventilated discs, 360×26 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| 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 |
Powertrain & Engine Architecture
At the heart of the CLS 63 AMG lies the M157.981 5.5-liter V8 engine. This powerplant utilizes direct fuel injection and twin turbochargers to produce 557 horsepower and 720 Newton-meters (531 lb-ft) of torque. The engine features a dry sump lubrication system, a technology typically found in racing applications, which ensures consistent oil supply even under extreme cornering forces. The AMG SPEEDSHIFT MCT seven-speed automatic transmission employs a wet multi-plate clutch instead of a traditional torque converter, resulting in quicker and more direct gear changes. This transmission is specifically tuned for performance, offering various driving modes including Comfort, Sport, Sport Plus, and Manual, allowing the driver to tailor the shift points and responsiveness to their preferences. The 4MATIC all-wheel-drive system distributes power between the front and rear axles, enhancing traction and stability, particularly in adverse weather conditions.
Driving Characteristics
The CLS 63 AMG delivers a remarkably potent driving experience. The combination of the powerful V8 engine and the responsive transmission results in blistering acceleration – 0 to 60 mph in approximately 3.5 seconds. The all-wheel-drive system provides excellent grip, allowing for confident cornering and stable handling. While the ride quality is firm due to the performance-oriented suspension, the air suspension on the rear axle helps to mitigate some of the harshness. Compared to lower-trim CLS models with smaller engines, the 63 AMG offers a significantly more engaging and dynamic driving experience. The difference in power and torque is substantial, making the 63 AMG a true performance machine.
Equipment & Trim Levels
The CLS 63 AMG came standard with a comprehensive array of luxury and performance features. Interior appointments included premium leather upholstery, AMG sport seats, and brushed aluminum trim. Standard technology included a high-resolution infotainment system with navigation, a premium sound system, and a suite of driver-assistance features such as blind-spot monitoring and lane-keeping assist. Optional extras included carbon fiber trim, a panoramic sunroof, and upgraded audio systems. The overall interior ambiance was focused on sporty luxury, with a clear emphasis on driver engagement.
Chassis & Braking
The CLS 63 AMG features a sophisticated chassis designed to handle the engine’s immense power. 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. This combination provides a balance of comfort and handling precision. The braking system consists of ventilated discs on all four wheels, with larger rotors and multi-piston calipers at the front to provide ample stopping power. The ABS (Anti-lock Braking System) and Electronic Stability Program (ESP) work in conjunction to maintain control during hard braking and cornering maneuvers.
Market Reception & Comparison
The CLS 63 AMG was generally well-received by automotive critics, who praised its performance, luxurious interior, and distinctive styling. However, some reviewers noted that the ride could be firm and that the fuel economy was relatively poor. Compared to other high-performance coupes and sedans of the time, such as the BMW 6 Series Gran Coupe and the Porsche Panamera, the CLS 63 AMG offered a unique blend of style, performance, and practicality. Its fuel economy, while not exceptional, was comparable to other vehicles in its class. Reliability was generally good, although the complex engine and transmission systems could potentially require more expensive maintenance over the long term.
Legacy
The C218 CLS 63 AMG remains a desirable vehicle in the used car market. The M157 engine, while complex, has proven to be relatively durable when properly maintained. Regular oil changes and adherence to the manufacturer’s recommended service intervals are crucial for long-term reliability. The AMG SPEEDSHIFT MCT transmission is also generally reliable, but may require occasional servicing. Today, the CLS 63 AMG represents a compelling option for buyers seeking a high-performance luxury coupe with a distinctive character and a powerful engine. Its combination of performance, luxury, and technology continues to appeal to enthusiasts and collectors alike.
