The Mercedes-Benz CLS 63 AMG Performance Package, produced between March 2011 and January 2013, represented the pinnacle of performance within the C218 CLS generation. This four-door coupe blended the luxury and styling of a traditional sedan with the aggressive performance characteristics of an AMG model. The “Performance Package” designation signified an increase in power over the standard CLS 63, solidifying its position as a high-performance grand tourer aimed at enthusiasts seeking both comfort and exhilarating speed. It was positioned as the most potent variant of the C218 CLS, sitting above the standard CLS 63 and any potential lower-powered trims.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | CLS |
| Generation | CLS coupe (C218) |
| Type (Engine) | AMG CLS 63 Performance Package V8 (557 Hp) AMG SPEEDSHIFT MCT |
| Start of production | March, 2011 |
| End of production | January, 2013 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 4 |
| Fuel consumption (economy) – urban (NEDC) | 13.9 l/100 km (16.9 US mpg, 20.3 UK mpg, 7.2 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 7.6 l/100 km (30.9 US mpg, 37.2 UK mpg, 13.2 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 9.9 l/100 km (23.8 US mpg, 28.5 UK mpg, 10.1 km/l) |
| CO2 emissions (NEDC) | 231 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.3 sec |
| Acceleration 0 – 62 mph | 4.3 sec |
| Acceleration 0 – 60 mph | 4.1 sec |
| Maximum speed | 250 km/h (155.34 mph), Electronically limited |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 3.2 kg/Hp, 310.3 Hp/tonne |
| Weight-to-torque ratio | 2.2 kg/Nm, 445.7 Nm/tonne |
| Power | 557 Hp @ 5250-5750 rpm |
| Power per litre | 102 Hp/l |
| Torque | 800 Nm @ 2000-4500 rpm (590.05 lb.-ft. @ 2000-4500 rpm) |
| Maximum engine speed | 6400 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 157.980 |
| 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 | 1795 kg (3957.3 lbs.) |
| Max. weight | 2415 kg (5324.16 lbs.) |
| Max load | 620 kg (1366.87 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 | 1622 mm (63.86 in.) |
| Rear (Back) track | 1605 mm (63.19 in.) |
| Drag coefficient (Cd) | 0.30 |
| Minimum turning circle (turning diameter) | 11.3 m (37.07 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 7 gears, 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 wheel tires: 255/35 R19Rear wheel tires: 285/30 R19 |
| Wheel rims size | Front wheel rims: 9J x 19Rear wheel rims: 10J x 19 |
INTRODUCTION
The C218 Mercedes-Benz CLS 63 AMG Performance Package, launched in 2011, was a significant evolution of the original CLS concept. Mercedes-Benz had pioneered the four-door coupe segment with the first-generation CLS, and the C218 continued this trend, offering a more sculpted and aggressive design. The Performance Package variant specifically targeted drivers who desired a substantial increase in power and a more focused driving experience. Built on the 1HX0/A3 platform, it shared underpinnings with other contemporary Mercedes-Benz models, but distinguished itself through its unique AMG-tuned engine and chassis components.
Powertrain & Engine Architecture
At the heart of the CLS 63 AMG Performance Package lay the M157.980 5.5-liter V8 engine. This engine was a significant departure from the naturally aspirated 6.2-liter AMG V8 it replaced, utilizing direct injection and twin turbochargers to produce 557 horsepower and a massive 800 Nm (590 lb-ft) of torque. The Performance Package increased the boost pressure of the turbochargers, resulting in a 30 horsepower gain over the standard CLS 63. The engine featured a DOHC valvetrain and a compression ratio of 10:1. The AMG SPEEDSHIFT MCT 7-speed automatic transmission, a wet-clutch system, was specifically tuned for quicker shifts and a more responsive feel. This transmission replaced the traditional torque converter automatic, offering improved efficiency and a more direct connection to the engine.
Driving Characteristics
The CLS 63 AMG Performance Package delivered a truly exhilarating driving experience. The increased power output, combined with the quick-shifting MCT transmission, allowed for blistering acceleration – 0 to 60 mph in approximately 4.1 seconds. While the car’s weight (around 3,957 lbs) limited outright agility compared to smaller sports cars, the AMG-tuned suspension and powerful engine provided a confident and engaging driving experience. The transmission’s gear ratios were optimized for both rapid acceleration and comfortable highway cruising. Compared to the standard CLS 63, the Performance Package offered a noticeably more aggressive throttle response and a more visceral exhaust note. Manual shifting via the steering wheel-mounted paddles allowed drivers to maintain precise control over gear selection.
Equipment & Trim Levels
The CLS 63 AMG Performance Package came standard with a comprehensive list of luxury and performance features. Interior appointments included premium leather upholstery, AMG sport seats, and carbon fiber trim. Standard equipment also included a premium sound system, navigation system, and a host of driver-assistance technologies. Optional extras included a panoramic sunroof, upgraded leather options, and various exterior styling enhancements. The interior dashboard configuration was typical of high-end Mercedes-Benz models of the era, featuring a blend of analog gauges and a central infotainment screen.
Chassis & Braking
The CLS 63 AMG Performance Package featured an AMG-tuned suspension system designed to balance comfort and handling. The front suspension utilized coil springs and an independent multi-link setup with a transverse stabilizer bar. The rear suspension employed an independent multi-link setup with air suspension and a transverse stabilizer bar, allowing for adjustable ride height and damping. Braking duties were handled by ventilated discs on all four wheels, measuring 360x36mm at the front and 360x26mm at the rear. The car was equipped with ABS (Anti-lock braking system) and electronic stability control to enhance safety and control.
Market Reception & Comparison
The CLS 63 AMG Performance Package was generally well-received by automotive critics. Reviewers praised its powerful engine, responsive transmission, and luxurious interior. However, some noted the car’s considerable weight and relatively high fuel consumption. Compared to other trims in the CLS lineup, such as the CLS 550, the Performance Package offered a significantly more potent driving experience but at the expense of fuel economy. Against competitors like the Porsche Panamera and BMW 6 Series Gran Coupe, the CLS 63 AMG Performance Package offered a unique blend of style, luxury, and performance.
Legacy
The M157 engine, as found in the CLS 63 AMG Performance Package, proved to be a robust and reliable powerplant when properly maintained. While the twin-turbo system requires diligent servicing, the engine itself is generally considered durable. Today, the C218 CLS 63 AMG Performance Package remains a desirable vehicle in the used car market, appealing to enthusiasts seeking a high-performance four-door coupe with a touch of exclusivity. Its combination of luxury, performance, and distinctive styling ensures its continued relevance among collectors and driving enthusiasts alike. Maintenance costs, however, can be substantial due to the complexity of the engine and the AMG-specific components.
