The Mercedes-Benz S-Class Long (V222) AMG S 65 V12, produced from February 2014 to May 2017, represents the pinnacle of luxury and performance within the V222 S-Class generation. As the flagship variant of the long-wheelbase S-Class, it catered to buyers demanding the utmost in refinement, power, and exclusivity. Positioned above the S 63 AMG, the S 65 offered a more substantial and sophisticated experience, emphasizing a smooth, powerful driving character rather than outright track performance. The “Long” designation indicates an extended wheelbase, providing significantly increased rear passenger legroom, making it particularly popular in markets where chauffeur-driven travel is common.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | S-class |
| Generation | S-class Long (V222) |
| Type | AMG S 65 V12 (630 Hp) AMG SPEEDSHIFT PLUS |
| Start of production | February, 2014 |
| End of production | May, 2017 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 4 |
| Doors | 4 |
| Fuel consumption (economy) – urban (NEDC) | 17.1 l/100 km (13.8 US mpg, 16.5 UK mpg, 5.8 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 8.6 l/100 km (27.4 US mpg, 32.8 UK mpg, 11.6 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 11.9 l/100 km (19.8 US mpg, 23.7 UK mpg, 8.4 km/l) |
| CO2 emissions (NEDC) | 279 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 6 |
| Weight-to-power ratio | 3.5 kg/Hp, 289.7 Hp/tonne |
| Weight-to-torque ratio | 2.2 kg/Nm, 459.8 Nm/tonne |
| Power | 630 Hp @ 4800-5400 rpm |
| Power per litre | 105.4 Hp/l |
| Torque | 1000 Nm @ 2300-4300 rpm (737.56 lb.-ft. @ 2300-4300 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 279.980 |
| Engine displacement | 5980 cm3 (364.92 cu. in.) |
| Number of cylinders | 12 |
| Engine configuration | V-engine |
| Cylinder Bore | 82.6 mm (3.25 in.) |
| Piston Stroke | 93 mm (3.66 in.) |
| Compression ratio | 9:1 |
| Number of valves per cylinder | 3 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | BiTurbo, Intercooler |
| Valvetrain | SOHC |
| Engine oil capacity | 10.5 l (11.1 US qt, 9.24 UK qt) |
| Coolant | 11.8 l (12.47 US qt, 10.38 UK qt) |
| Kerb Weight | 2175 kg (4795.05 lbs.) |
| Max. weight | 2750 kg (6062.71 lbs.) |
| Max load | 575 kg (1267.66 lbs.) |
| Trunk (boot) space – minimum | 470 l (16.6 cu. ft.) |
| Fuel tank capacity | 80 l (21.13 US gal, 17.6 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Length | 5287 mm (208.15 in.) |
| Width | 1915 mm (75.39 in.) |
| Width including mirrors | 2130 mm (83.86 in.) |
| Height | 1499 mm (59.02 in.) |
| Wheelbase | 3165 mm (124.61 in.) |
| Drag coefficient (Cd) | 0.28 |
| Minimum turning circle | 12.3 m (40.35 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears and type of gearbox | 7 gears, automatic transmission AMG SPEEDSHIFT PLUS |
| Front suspension | Hydro-pneumatic element, Independent multi-link suspension |
| Rear suspension | Hydro-pneumatic element, Independent multi-link suspension |
| Front brakes | Ventilated discs, 420×40 mm |
| Rear brakes | Ventilated discs, 360×32 mm |
| Tires size | Front wheel tires: 255/40 R20, Rear wheel tires: 285/35 R20 |
| Wheel rims size | Front wheel rims: 8.5J x 20, Rear wheel rims: 9.5J x 20 |
Powertrain & Engine Architecture
The heart of the S 65 is the M279.980 6.0-liter twin-turbocharged V12 engine. This engine, a hallmark of Mercedes-AMG’s engineering prowess, utilizes a hot-vee configuration, placing the turbochargers within the V of the engine block for a more compact design and improved responsiveness. The engine employs multi-port fuel injection and features a single overhead camshaft (SOHC) valvetrain. The twin turbochargers provide substantial boost, contributing to the engine’s impressive 630 horsepower and 737.56 lb-ft of torque. The AMG SPEEDSHIFT PLUS 7G-TRONIC automatic transmission, a seven-speed unit, is specifically tuned for the V12 engine, offering smooth and rapid gear changes. This transmission features three driving modes – Controlled Efficiency (C), Sport, and Manual – allowing the driver to tailor the driving experience to their preferences. The transmission also incorporates a launch control function for optimal acceleration.
Driving Characteristics
The S 65 delivers a driving experience characterized by effortless power and exceptional refinement. The immense torque available from as low as 2300 rpm provides prodigious acceleration, making overtaking maneuvers seamless and confident. While not as overtly sporty as the S 63, the S 65 offers a more relaxed and composed driving style. The long wheelbase and sophisticated suspension system contribute to a remarkably smooth ride, even on imperfect road surfaces. The automatic transmission is programmed to prioritize comfort and smoothness in normal driving conditions, shifting gears almost imperceptibly. In Sport mode, the transmission holds gears longer and downshifts more aggressively, providing a more engaging driving experience. The rear-wheel drive configuration contributes to a balanced feel, although it doesn’t offer the all-weather capability of the 4MATIC all-wheel drive system available on other S-Class models.
Equipment & Trim Levels
The S 65 came standard with a comprehensive array of luxury features. Interior appointments included exclusive Nappa leather upholstery, AMG sport seats with massage functions, and a premium Burmester surround sound system. The dashboard featured AMG-specific instrumentation and trim elements. Standard technology included Mercedes-Benz’s COMAND infotainment system with a large central display screen, a head-up display, and a suite of advanced driver-assistance systems, such as adaptive cruise control, lane-keeping assist, and automatic emergency braking. Optional extras included a rear-seat entertainment system, a panoramic sunroof, and various customization options through Mercedes-Benz’s Designo program, allowing buyers to personalize the interior with unique materials and colors.
Chassis & Braking
The S 65’s chassis is engineered for both comfort and control. It utilizes an AIRMATIC air suspension system with adaptive damping, which automatically adjusts the suspension settings based on road conditions and driving style. The suspension also features the ABC (Active Body Control) system, which actively counteracts body roll and pitch, further enhancing ride comfort and stability. Braking duties are handled by large, ventilated disc brakes on all four wheels, providing ample stopping power. The front brakes measure 420×40 mm, while the rear brakes are 360×32 mm. The braking system is equipped with ABS (Anti-lock Braking System), Electronic Stability Program (ESP), and Brake Assist.
Market Reception & Comparison
The S 65 was generally well-received by automotive critics, who praised its luxurious interior, powerful engine, and refined driving experience. However, its high price tag and relatively low fuel economy were often cited as drawbacks. Compared to the S 63 AMG, the S 65 offered a more relaxed and sophisticated driving experience, prioritizing comfort and smoothness over outright performance. The S 65 also distinguished itself from other S-Class variants, such as the S 550, with its significantly more powerful engine and exclusive features. Fuel economy, while not a priority for most buyers in this segment, was considerably lower than that of the V6 and V8-powered S-Class models.
Legacy
The M279 V12 engine, while complex, has proven to be a relatively reliable powertrain when properly maintained. Common maintenance items include regular oil changes and inspections of the turbochargers and cooling system. On the used car market, the S 65 commands a premium price due to its exclusivity and desirable features. It remains a sought-after vehicle for buyers seeking a luxurious and powerful grand tourer. The V222 S 65 represents a high point in Mercedes-Benz’s V12 engine production, offering a unique blend of performance, luxury, and technology that continues to appeal to discerning enthusiasts today.
