The Mercedes-Benz CLS 63 AMG, specifically the C219 facelift model produced from January 2008 to June 2010, represents the pinnacle of performance within the first-generation CLS lineup. Positioned as the flagship variant, it combined the elegant four-door coupe styling of the CLS with the formidable power of Mercedes-AMG’s naturally aspirated V8 engine. This iteration of the CLS 63 was a key player in establishing the four-door coupe segment as a desirable alternative to traditional sedans, offering a blend of luxury, performance, and distinctive design. It built upon the foundation of the 1HX0 platform, shared with the W219 E-Class, but distinguished itself through unique styling and a significantly upgraded powertrain.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | CLS |
| Generation | CLS coupe (C219, facelift 2008) |
| Type | AMG CLS 63 V8 (514 Hp) 7G-TRONIC AMG SPEEDSHIFT PLUS |
| Start of production | January, 2008 |
| End of production | June, 2010 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 4 |
| Fuel consumption (economy) – urban (NEDC) | 22.6 l/100 km (10.4 US mpg, 12.5 UK mpg, 4.4 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 9.9 l/100 km (23.8 US mpg, 28.5 UK mpg, 10.1 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 14.5 l/100 km (16.2 US mpg, 19.5 UK mpg, 6.9 km/l) |
| CO2 emissions (NEDC) | 345 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.5 sec |
| Acceleration 0 – 62 mph | 4.5 sec |
| Acceleration 0 – 60 mph | 4.3 sec |
| Maximum speed | 250 km/h (155.34 mph), Electronically limited |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 3.6 kg/Hp, 280.9 Hp/tonne |
| Weight-to-torque ratio | 2.9 kg/Nm, 344.3 Nm/tonne |
| Power | 514 Hp @ 6800 rpm |
| Power per litre | 82.8 Hp/l |
| Torque | 630 Nm @ 5200 rpm (464.66 lb.-ft. @ 5200 rpm) |
| Maximum engine speed | 7200 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 156.983 |
| Engine displacement | 6208 cm3 (378.84 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 102.2 mm (4.02 in.) |
| Piston Stroke | 94.6 mm (3.72 in.) |
| Compression ratio | 11.3:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC, VVT |
| Engine oil capacity | 8.8 l (9.3 US qt, 7.74 UK qt) |
| Coolant | 11.8 l (12.47 US qt, 10.38 UK qt) |
| Kerb Weight | 1830 kg (4034.46 lbs.) |
| Max. weight | 2370 kg (5224.96 lbs.) |
| Max load | 540 kg (1190.5 lbs.) |
| Trunk (boot) space – minimum | 495 l (17.48 cu. ft.) |
| Fuel tank capacity | 80 l (21.13 US gal, 17.6 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Length | 4915 mm (193.5 in.) |
| Width | 1873 mm (73.74 in.) |
| Height | 1389 mm (54.69 in.) |
| Wheelbase | 2854 mm (112.36 in.) |
| Front track | 1599 mm (62.95 in.) |
| Rear (Back) track | 1583 mm (62.32 in.) |
| Ride height (ground clearance) | 114 mm (4.49 in.) |
| Drag coefficient (Cd) | 0.31 |
| Minimum turning circle (turning diameter) | 11.5 m (37.73 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 G-TRONIC AMG SPEEDSHIFT PLUS |
| Front suspension | Independent multi-link suspension, Transverse stabilizer, Air suspension |
| Rear suspension | Independent multi-link suspension, Air suspension, Transverse stabilizer |
| Front brakes | Ventilated discs, 360 mm |
| Rear brakes | Ventilated discs, 330 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | Front wheel tires: 255/35 R19 Rear wheel tires: 285/30 R19 |
| Wheel rims size | Front wheel rims: 8.5J x 19 Rear wheel rims: 9.5J x 19 |
Powertrain & Engine Architecture
The heart of the CLS 63 AMG is the M156.983 6.2-liter naturally aspirated V8 engine. This engine, a hallmark of AMG’s engineering prowess, is constructed with an aluminum block and heads, featuring a high 11.3:1 compression ratio. It utilizes a multi-port fuel injection system and a double overhead camshaft (DOHC) valvetrain with variable valve timing (VVT) on both intake and exhaust sides. The engine produces 514 horsepower at 6800 rpm and a substantial 630 Nm (464.66 lb-ft) of torque at 5200 rpm. The engine’s design prioritized a linear power delivery and a distinctive exhaust note. Paired with the engine is the 7G-TRONIC AMG SPEEDSHIFT PLUS automatic transmission, a seven-speed unit specifically tuned for performance. This transmission offered quicker shift times and a more responsive feel compared to the standard 7G-TRONIC, with driver-selectable modes including Comfort, Sport, and Manual.
Driving Characteristics
The CLS 63 AMG delivered a driving experience that was both refined and exhilarating. The 7G-TRONIC transmission, while smooth in automatic mode, allowed for precise gear changes when operated manually via steering wheel-mounted paddles. The engine’s broad torque curve provided strong acceleration in any gear, making overtaking effortless. While not as nimble as smaller coupes, the CLS 63 offered a confident and planted feel, thanks to its relatively low ride height and well-tuned suspension. Compared to the CLS 550 models, the 63 AMG offered a significantly more aggressive power delivery and a sportier overall character. The larger engine and more aggressive tuning resulted in noticeably higher fuel consumption.
Equipment & Trim Levels
The CLS 63 AMG came standard with a comprehensive list of luxury and performance features. Interior appointments included premium leather upholstery, wood trim, and AMG-specific sport seats. Standard equipment also included a premium sound system, automatic climate control, and a host of safety features. Optional extras included a panoramic sunroof, upgraded leather options, and a rear-seat entertainment system. The exterior was distinguished by AMG body styling, including unique front and rear bumpers, side skirts, and quad exhaust outlets. Larger alloy wheels and high-performance tires were also standard.
Chassis & Braking
The CLS 63 AMG featured a sophisticated suspension system designed to balance comfort and handling. The front suspension utilized an independent multi-link setup with a transverse stabilizer and air suspension, while the rear suspension employed an independent multi-link design with air suspension and a transverse stabilizer. This air suspension system allowed for adjustable ride height and damping. Braking duties were handled by ventilated discs on all four wheels, with larger rotors and upgraded calipers compared to the standard CLS models. The inclusion of ABS (Anti-lock braking system) was standard.
Market Reception & Comparison
The CLS 63 AMG was generally well-received by automotive critics, who praised its powerful engine, luxurious interior, and distinctive styling. However, some reviewers noted its relatively high fuel consumption and its size, which could make it challenging to maneuver in tight spaces. Compared to its rivals, such as the Porsche Panamera and the BMW 6 Series, the CLS 63 offered a unique combination of style and performance. Its fuel economy was generally lower than its competitors, but its price point often positioned it as a more accessible option.
Legacy
The C219 CLS 63 AMG remains a sought-after vehicle among enthusiasts. The M156 engine is renowned for its reliability and durability, although maintenance costs can be significant due to its complexity. The naturally aspirated V8 is increasingly appreciated in an era of turbocharged engines. Today, well-maintained examples command a premium in the used car market, appealing to collectors and drivers who appreciate a blend of luxury, performance, and a distinctive driving experience. The CLS 63 AMG helped solidify the four-door coupe segment and established Mercedes-AMG as a leader in high-performance luxury vehicles.
