The Mercedes-Benz S 280, produced between 1993 and 1994, was a key variant within the W140 generation of the S-Class. Representing a more accessible entry point into the flagship luxury sedan range, the S 280 offered a blend of comfort, refinement, and performance that appealed to buyers seeking prestige without the higher price tag of the V8 or V12 powered models. Positioned below the S 320, S 420, and S 600, it served as a popular choice for those prioritizing fuel efficiency and a smoother, less aggressive driving experience. The W140 S-Class, known for its robust build quality and advanced technology for its time, established a new benchmark for luxury automobiles.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | S-class |
| Generation | S-class (W140) |
| Type (Engine) | S 280 (193 Hp) Automatic |
| Start of production | 1993 |
| End of production | 1994 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (economy) – urban | 14.6 l/100 km (16.1 US mpg, 19.3 UK mpg, 6.8 km/l) |
| Fuel consumption (economy) – extra urban | 8.8 l/100 km (26.7 US mpg, 32.1 UK mpg, 11.4 km/l) |
| Fuel consumption (economy) – combined | 11.4 l/100 km (20.6 US mpg, 24.8 UK mpg, 8.8 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 10.8 sec |
| Acceleration 0 – 62 mph | 10.8 sec |
| Acceleration 0 – 60 mph | 10.3 sec |
| Maximum speed | 210 km/h (130.49 mph) |
| Weight-to-power ratio | 9.8 kg/Hp, 102.1 Hp/tonne |
| Weight-to-torque ratio | 7 kg/Nm, 142.9 Nm/tonne |
| Power | 193 Hp @ 5500 rpm |
| Power per litre | 69 Hp/l |
| Torque | 270 Nm @ 3750 rpm (199.14 lb.-ft. @ 3750 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 104 E 28/104.944 |
| Engine displacement | 2799 cm3 (170.81 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 89.9 mm (3.54 in.) |
| Piston Stroke | 73.5 mm (2.89 in.) |
| Compression ratio | 10:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 7.5 l (7.93 US qt | 6.6 UK qt) |
| Coolant | 14.5 l (15.32 US qt | 12.76 UK qt) |
| Kerb Weight | 1890 kg (4166.74 lbs.) |
| Max. weight | 2550 kg (5621.79 lbs.) |
| Max load | 660 kg (1455.05 lbs.) |
| Trunk (boot) space – minimum | 525 l (18.54 cu. ft.) |
| Fuel tank capacity | 100 l (26.42 US gal | 22 UK gal) |
| Length | 5113 mm (201.3 in.) |
| Width | 1886 mm (74.25 in.) |
| Height | 1486 mm (58.5 in.) |
| Wheelbase | 3040 mm (119.69 in.) |
| Front track | 1606 mm (63.23 in.) |
| Rear (Back) track | 1579 mm (62.17 in.) |
| 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 | 5 gears, automatic transmission |
| Front suspension | Double wishbone |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Worm-reduction unit |
| Power steering | Hydraulic Steering |
| Tires size | 235/60 R16 |
| Wheel rims size | 16 |
Powertrain & Engine Architecture
The S 280 was powered by the M104 E 28 engine, a 2.8-liter inline-six cylinder powerplant. This engine, designated with the code 104.944, was a significant departure from the V8 engines traditionally associated with the S-Class. It featured a cast iron block and aluminum cylinder head, incorporating a double overhead camshaft (DOHC) valvetrain with four valves per cylinder. Fuel delivery was managed by a Bosch multi-port fuel injection system, contributing to smooth operation and reasonable fuel economy. The engine produced 193 horsepower at 5500 rpm and 270 Nm (199 lb-ft) of torque at 3750 rpm. Paired exclusively with a five-speed automatic transmission, the M104 E 28 offered a comfortable and refined driving experience, prioritizing smoothness over outright performance. The automatic transmission was designed to provide seamless gear changes, enhancing the luxury character of the S-Class.
Driving Characteristics
The S 280’s driving experience was characterized by its relaxed and composed nature. While not as quick as its V8 siblings, the inline-six provided adequate power for comfortable cruising and everyday driving. Acceleration from 0 to 60 mph took approximately 10.3 seconds, and the top speed was electronically limited to 210 km/h (130 mph). The automatic transmission, while smooth, could feel somewhat hesitant during quick overtaking maneuvers. The gear ratios were tuned for fuel efficiency and comfort, rather than aggressive acceleration. Compared to the S 320, the S 280 offered a noticeable difference in performance, with the V6 feeling less strained during highway passing. However, the S 280’s lighter weight and more balanced chassis contributed to a more nimble feel in city driving.
Equipment & Trim Levels
The S 280 came standard with a comprehensive list of features befitting a luxury sedan of its era. These included leather upholstery, power-adjustable front seats, automatic climate control, a premium sound system, and power windows and locks. The W140 S-Class was also notable for its advanced safety features, including ABS anti-lock brakes and a driver-side airbag (passenger airbag was optional). Optional extras included a sunroof, rear climate control, heated seats, and a more sophisticated audio system. Interior trim options typically included wood veneer accents and a choice of leather colors. The overall interior ambiance was one of understated elegance and high-quality materials.
Chassis & Braking
The W140 S-Class featured a robust chassis with double wishbone suspension at the front and an independent multi-link spring suspension with a stabilizer bar at the rear. This suspension setup provided a comfortable ride, effectively absorbing bumps and irregularities in the road surface. The S 280 utilized ventilated disc brakes at the front and solid disc brakes at the rear, providing adequate stopping power for its weight class. The hydraulic power steering offered precise and responsive handling. The chassis was designed to prioritize ride comfort and stability, rather than sporty handling characteristics.
Market Reception & Comparison
The S 280 was generally well-received by automotive critics as a more affordable and fuel-efficient alternative to the higher-end S-Class models. While some reviewers noted its lack of outright performance compared to the V8 variants, they praised its comfortable ride, refined interior, and comprehensive list of standard features. Fuel economy was a key selling point, with the S 280 achieving around 20.6 US mpg in combined driving. Compared to the S 320, the S 280 offered a significant price advantage, making it accessible to a wider range of buyers. However, the S 320’s superior performance and more luxurious appointments appealed to those willing to pay a premium.
Legacy
The M104 engine, found in the S 280, is known for its durability and reliability. With proper maintenance, these engines can accumulate high mileage without major issues. The W140 S-Class, as a whole, has gained a reputation as a well-built and over-engineered automobile. Today, the S 280 is a sought-after classic car, particularly among enthusiasts who appreciate its understated elegance and robust mechanicals. While finding well-maintained examples can be challenging, the S 280 remains a testament to Mercedes-Benz’s commitment to quality and luxury. Parts availability is generally good, although some specific components may be becoming increasingly difficult to source. The S 280 represents a unique blend of luxury, comfort, and reliability that continues to appeal to collectors and enthusiasts alike.
