The Mercedes-Benz S-Class Long (V220) S 600 V12, produced between 1999 and 2002, represented the pinnacle of luxury and performance within the W220 S-Class generation. As the flagship variant of the long-wheelbase model, it catered to buyers seeking the utmost in refinement, space, and power. The “Long” designation indicated an extended wheelbase, providing significantly more rear passenger legroom, making it particularly popular in markets where chauffeur-driven travel was common. This model occupied the very top tier of the S-Class lineup, positioned above the S 500, S 430, and even the S 600 with the smaller V8 engine.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | S-Class |
| Generation | S-Class Long (V220) |
| Type | S 600 V12 (367 Hp) 5G-TRONIC |
| Start of production | 1999 |
| End of production | 2002 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 19.9 l/100 km (11.8 US mpg, 14.2 UK mpg, 5 km/l) |
| Fuel consumption (extra urban) | 9.5 l/100 km (24.8 US mpg, 29.7 UK mpg, 10.5 km/l) |
| Fuel consumption (combined) | 13.3 l/100 km (17.7 US mpg, 21.2 UK mpg, 7.5 km/l) |
| CO2 emissions | 321 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6.3 sec |
| Acceleration 0 – 62 mph | 6.3 sec |
| Acceleration 0 – 60 mph | 6 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Weight-to-power ratio | 5.3 kg/Hp, 187.2 Hp/tonne |
| Weight-to-torque ratio | 3.7 kg/Nm, 270.4 Nm/tonne |
| Power | 367 Hp @ 5500 rpm |
| Power per litre | 63.4 Hp/l |
| Torque | 530 Nm @ 4250 rpm (390.91 lb.-ft. @ 4250 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 137 E 58/137.970 |
| Engine displacement | 5786 cm3 (353.08 cu. in.) |
| Number of cylinders | 12 |
| Engine configuration | V-engine |
| Cylinder Bore | 84 mm (3.31 in.) |
| Piston Stroke | 87 mm (3.43 in.) |
| Compression ratio | 10:1 |
| Number of valves per cylinder | 3 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Engine oil capacity | 9 l (9.51 US qt | 7.92 UK qt) |
| Coolant | 12.2 l (12.89 US qt | 10.73 UK qt) |
| Kerb Weight | 1960 kg (4321.06 lbs.) |
| Max. weight | 2460 kg (5423.37 lbs.) |
| Max load | 500 kg (1102.31 lbs.) |
| Trunk (boot) space (minimum) | 500 l (17.66 cu. ft.) |
| Fuel tank capacity | 88 l (23.25 US gal | 19.36 UK gal) |
| Length | 5158 mm (203.07 in.) |
| Width | 1855 mm (73.03 in.) |
| Width including mirrors | 2092 mm (82.36 in.) |
| Height | 1444 mm (56.85 in.) |
| Wheelbase | 3085 mm (121.46 in.) |
| Front track | 1574 mm (61.97 in.) |
| Rear (Back) track | 1574 mm (61.97 in.) |
| Drag coefficient (Cd) | 0.29 |
| Drivetrain Architecture | Rear wheel drive |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 5 gears, automatic transmission G-TRONIC |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 225/55 R17W |
| Wheel rims size | 7.5J |
Powertrain & Engine Architecture
The heart of the S 600 V12 was the M137 E 58 engine, a 5.8-liter naturally aspirated V12. This engine was a significant departure from the V8s offered in other S-Class models. It featured a 60-degree V-angle, three valves per cylinder, and a multi-port fuel injection system. The engine produced 367 horsepower at 5500 rpm and a substantial 530 Nm (390.91 lb-ft) of torque at 4250 rpm. The engine’s smooth power delivery was a hallmark of the V12 configuration. Paired with the engine was the 5G-TRONIC automatic transmission, a five-speed unit known for its smooth and refined shifts. This transmission was specifically tuned to handle the high torque output of the V12 engine and provide a comfortable driving experience.
Driving Characteristics
The S 600 V12 offered a driving experience focused on effortless power and supreme comfort. While not designed for outright sportiness, the V12 provided ample acceleration – 0 to 60 mph in approximately 6 seconds and a governed top speed of 155 mph. The 5G-TRONIC transmission contributed to a seamless driving experience, with well-chosen gear ratios that maximized both acceleration and fuel efficiency. Compared to the S 430 or S 500, the V12 offered a noticeable increase in torque, resulting in stronger acceleration at all speeds. However, the added weight of the V12 engine did slightly impact handling agility compared to the lighter V8 models.
Equipment & Trim Levels
The S 600 V12 came standard with a comprehensive list of luxury features. Leather upholstery was standard, along with wood trim, power-adjustable heated and ventilated front seats with memory function, a premium sound system, and automatic climate control. The long wheelbase provided increased rear legroom, often paired with reclining rear seats and individual climate controls. Optional extras included a rear entertainment system, massaging seats, and various customization options for interior trim and paint colors. The emphasis was on providing a truly opulent and personalized experience for both the driver and passengers.
Chassis & Braking
The S-Class V220 chassis featured a fully independent suspension system, utilizing air suspension with adaptive damping. This system provided a remarkably smooth and comfortable ride, automatically adjusting to road conditions. The S 600 V12 was equipped with ventilated disc brakes on all four wheels, coupled with an Anti-lock Braking System (ABS) for enhanced safety. The suspension was tuned to prioritize ride comfort, but still offered reasonable handling characteristics for a large luxury sedan. Stabilizer bars were fitted front and rear to reduce body roll during cornering.
Market Reception & Comparison
The S 600 V12 was generally well-received by automotive critics, who praised its smooth power delivery, luxurious interior, and comfortable ride. However, its high price tag and relatively poor fuel economy (13.3 l/100 km combined) limited its appeal to a niche market. Compared to the S 500, the V12 offered significantly more power and prestige, but at a substantial cost premium. The S 600 V12 was often seen as a statement of wealth and status, appealing to buyers who prioritized luxury and exclusivity above all else.
Legacy
The M137 V12 engine, while complex, proved to be relatively reliable when properly maintained. Common issues included occasional problems with the electronic throttle control and the air suspension system. Today, the S 600 V12 (W220) is considered a desirable classic, particularly among Mercedes-Benz enthusiasts. Well-maintained examples command a premium in the used car market. The car represents a high point in Mercedes-Benz engineering and luxury, offering a unique driving experience that is difficult to replicate in modern vehicles. Its combination of power, comfort, and exclusivity continues to make it a sought-after automobile.
