The Mercedes-Benz S-Class Coupe (C217) S 500 V8 4MATIC, produced from October 2016 to September 2017, represents a pinnacle of luxury grand touring within the C217 generation of the S-Class Coupe. Positioned as a high-performance variant, it offered a compelling blend of power, technology, and refinement. This two-door, four-seater coupe aimed to deliver a more dynamic driving experience than the standard S-Class sedan while maintaining the brand’s hallmark comfort and opulence. It served as a flagship model, competing with other high-end grand tourers like the BMW 8 Series and Bentley Continental GT.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | S-class |
| Generation | S-class Coupe (C217) |
| Type (Engine) | S 500 V8 (455 Hp) 4MATIC 9G-TRONIC |
| Start of production | October, 2016 |
| End of production | September, 2017 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (economy) – urban (NEDC) | 12.2-12.4 l/100 km (19.3 – 19 US mpg, 23.2 – 22.8 UK mpg, 8.2 – 8.1 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 7.1-7.6 l/100 km (33.1 – 30.9 US mpg, 39.8 – 37.2 UK mpg, 14.1 – 13.2 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 8.8-9.4 l/100 km (26.7 – 25 US mpg, 32.1 – 30.1 UK mpg, 11.4 – 10.6 km/l) |
| CO2 emissions (NEDC) | 206-219 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.6 sec |
| Acceleration 0 – 62 mph | 4.6 sec |
| Acceleration 0 – 60 mph | 4.4 sec |
| Maximum speed | 250 km/h (155.34 mph), Electronically limited |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 4.4 kg/Hp, 225.8 Hp/tonne |
| Weight-to-torque ratio | 2.9 kg/Nm, 347.4 Nm/tonne |
| Power | 455 Hp @ 5250-5500 rpm |
| Power per litre | 97.6 Hp/l |
| Torque | 700 Nm @ 1800-3500 rpm (516.29 lb.-ft. @ 1800-3500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 278.929 |
| Engine displacement | 4663 cm3 (284.55 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 92.9 mm (3.66 in.) |
| Piston Stroke | 86 mm (3.39 in.) |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | BiTurbo, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Coolant | 12.1 l (12.79 US qt | 10.65 UK qt) |
| Kerb Weight | 2015 kg (4442.31 lbs.) |
| Max. weight | 2595 kg (5721 lbs.) |
| Max load | 580 kg (1278.68 lbs.) |
| Trunk (boot) space – minimum | 400 l (14.13 cu. ft.) |
| Fuel tank capacity | 80 l (21.13 US gal | 17.6 UK gal) |
| Length | 5027 mm (197.91 in.) |
| Width | 1899 mm (74.76 in.) |
| Width including mirrors | 2108 mm (82.99 in.) |
| Height | 1411 mm (55.55 in.) |
| Wheelbase | 2945 mm (115.94 in.) |
| Front track | 1625 mm (63.98 in.) |
| Rear (Back) track | 1649 mm (64.92 in.) |
| Front overhang | 954 mm (37.56 in.) |
| Rear overhang | 1128 mm (44.41 in.) |
| Drag coefficient (Cd) | 0.28 |
| Minimum turning circle (turning diameter) | 11.6 m (38.06 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives permanently the four wheels of the vehicle. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 9 gears, automatic transmission G-TRONIC |
| Front suspension | Independent multi-link suspension, Transverse stabilizer, Air suspension |
| Rear suspension | Independent multi-link suspension, Air suspension, Transverse stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
INTRODUCTION
The C217 S-Class Coupe, launched in 2014, represented Mercedes-Benz’s foray into a dedicated two-door S-Class model, previously offered only as a coupe derivative of the sedan. The S 500 V8 4MATIC, introduced in 2016, was a key variant within the lineup, offering a substantial performance upgrade over the base S 550 models. It combined the luxurious appointments expected of an S-Class with the potent power of a twin-turbocharged V8 engine and the added security of all-wheel drive. This model year saw minor revisions to the C217, primarily focused on refining the infotainment system and driver assistance features.
Powertrain & Engine Architecture
At the heart of the S 500 V8 4MATIC lies the M278.929 4.7-liter twin-turbocharged V8 engine. This engine, a mainstay in many high-performance Mercedes-Benz models of the era, utilizes direct fuel injection and a sophisticated multi-spark ignition system. The twin turbochargers, positioned within the cylinder banks (hot-vee configuration), minimize turbo lag and provide a broad torque curve. The engine produces 455 horsepower at 5250-5500 rpm and a substantial 700 Nm (516 lb-ft) of torque between 1800 and 3500 rpm. This power is channeled through a 9G-TRONIC nine-speed automatic transmission, known for its smooth shifts and efficiency. The 4MATIC all-wheel-drive system provides enhanced traction and stability, distributing power between the front and rear axles as needed. The engine also features an ECO Start/Stop system to improve fuel economy in city driving.
Driving Characteristics
The S 500 V8 4MATIC delivers a refined yet potent driving experience. The 4.6-second 0-60 mph acceleration time is indicative of its performance capabilities, but the true strength lies in its effortless cruising ability. The 9G-TRONIC transmission is well-tuned, providing seamless gear changes and keeping the engine within its optimal power band. Compared to the standard S 550, the S 500 V8 offers noticeably stronger acceleration and a more responsive feel. While not as overtly sporty as some competitors, the S 500 V8 provides a confident and composed ride, thanks to its air suspension and precise steering. The 4MATIC system ensures excellent grip in all weather conditions.
Equipment & Trim Levels
The S 500 V8 4MATIC came standard with a comprehensive array of luxury features. These included leather upholstery, heated and ventilated front seats with massage functions, a premium Burmester surround sound system, and a large infotainment display with navigation. Standard safety features included adaptive cruise control, lane-keeping assist, and automatic emergency braking. Optional extras included a head-up display, a panoramic sunroof, and various interior trim options. The interior was characterized by high-quality materials and meticulous craftsmanship, reflecting the S-Class’s reputation for luxury.
Chassis & Braking
The C217 S-Class Coupe utilized a sophisticated chassis design featuring an independent multi-link suspension at all four corners. The AIRMATIC air suspension system provided a comfortable ride and allowed for adjustable ride height. The S 500 V8 4MATIC was equipped with ventilated disc brakes on all wheels, providing ample stopping power. The electronic stability program (ESP) and anti-lock braking system (ABS) worked in conjunction to enhance safety and control. The steering system was a speed-sensitive rack-and-pinion design with electric power assistance.
Market Reception & Comparison
The S 500 V8 4MATIC was generally well-received by automotive critics. It was praised for its powerful engine, luxurious interior, and refined driving experience. However, some reviewers noted that its size and weight could make it feel less agile than some competitors. Compared to the S 550, the S 500 V8 offered a significant performance upgrade, justifying its higher price tag for those seeking more power. Fuel economy, while respectable for a vehicle of its size and performance, was not a primary strength. Reliability reports have been generally positive, with few major issues reported.
Legacy
The C217 S-Class Coupe, and specifically the S 500 V8 4MATIC variant, represents a high point in Mercedes-Benz’s grand touring heritage. The M278 engine, while superseded by newer designs, remains a robust and capable powerplant. On the used car market, these models hold their value well, attracting buyers who appreciate their blend of luxury, performance, and technology. Regular maintenance, including oil changes and inspections of the turbochargers, is crucial for long-term reliability. The S 500 V8 4MATIC continues to be a desirable and respected vehicle among enthusiasts and luxury car buyers alike.
