The Mercedes-Benz S 280, produced between March 1994 and August 1998, was a key variant within the W140 generation of the S-Class. This facelifted model, introduced in 1994, represented a refinement of the already technologically advanced W140, addressing some criticisms of the initial launch while maintaining the flagship luxury sedan’s position. The S 280 occupied a middle ground in the lineup, offering a balance between performance and economy compared to the more powerful S 320, S 420, and S 500 models. It was positioned as a more accessible entry point into the W140 S-Class experience, appealing to buyers who prioritized refinement and comfort over outright speed.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | S-class |
| Generation | S-class (W140, facelift 1994) |
| Type (Engine) | S 280 (193 Hp) |
| Start of production | March, 1994 |
| End of production | August, 1998 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 15.6 l/100 km (15.1 US mpg, 18.1 UK mpg, 6.4 km/l) |
| Fuel consumption (extra urban) | 8.6-10.6 l/100 km (27.4 – 22.2 US mpg, 32.8 – 26.6 UK mpg, 11.6 – 9.4 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 11 sec |
| Acceleration 0 – 62 mph | 11 sec |
| Acceleration 0 – 60 mph | 10.5 sec |
| Maximum speed | 215 km/h (133.59 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 104.944 |
| 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.) |
| Minimum turning circle | 12.18 m (39.96 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 | 5 gears, manual transmission |
| Front suspension | Coil spring, Double wishbone, Transverse stabilizer |
| Rear suspension | Independent multi-link suspension, Transverse stabilizer, Coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Cone worm with recirculation balls |
| Power steering | Hydraulic Steering |
| Tires size | 235/60 R16 |
| Wheel rims size | 7.5J x 16 |
Powertrain & Engine Architecture
The S 280 was powered by the M104.944, a 2.8-liter inline-six engine. This engine was a cornerstone of Mercedes-Benz’s mid-range offerings throughout the 1990s. It featured a cast-iron block and aluminum cylinder head, incorporating dual overhead camshafts (DOHC) and four valves per cylinder. The M104 utilized Bosch Motronic fuel injection, a multi-port system that precisely controlled fuel delivery for optimal combustion. The engine’s 193 horsepower and 270 Nm (199 lb-ft) of torque were respectable for its displacement, providing smooth and refined power delivery. The five-speed manual transmission was standard, offering drivers a direct connection to the engine. While an automatic transmission was available, it impacted performance slightly.
Driving Characteristics
The S 280, with its manual transmission, offered a surprisingly engaging driving experience for a large luxury sedan. Acceleration to 60 mph took around 10.5 seconds, and top speed was limited to 133.59 mph. While not overtly sporty, the engine provided sufficient power for comfortable highway cruising and effortless overtaking. The manual gearbox allowed for precise control, and the engine’s torque curve meant that it didn’t require constant shifting. Compared to the more powerful S 320 or S 420, the S 280 felt less urgent, but it also offered better fuel economy and a lighter feel. The automatic transmission option, while providing convenience, dulled the responsiveness and increased fuel consumption.
Equipment & Trim Levels
The S 280 came standard with a comprehensive list of luxury features, befitting its status as a flagship sedan. These included leather upholstery, power-adjustable front seats with memory function, automatic climate control, a high-end audio system, and wood trim throughout the cabin. Optional extras included a sunroof, upgraded audio systems, rear seat entertainment, and various driver-assistance features. The interior design was characterized by its understated elegance and high-quality materials. The S 280’s trim levels were relatively simple, with most options being added individually rather than packaged into distinct tiers.
Chassis & Braking
The W140 S-Class featured a robust chassis with independent suspension all around. The front suspension utilized coil springs and double wishbones, while the rear employed a multi-link setup. This configuration provided a comfortable ride and excellent handling characteristics. The S 280 was equipped with ventilated disc brakes at the front and solid discs at the rear. Anti-lock braking system (ABS) was standard, enhancing safety and control. The steering was a recirculating ball system with hydraulic power assistance, offering a balanced feel between precision and ease of use.
Market Reception & Comparison
The S 280 was generally well-received by automotive critics. It was praised for its comfortable ride, refined interior, and relatively affordable price point within the S-Class range. However, some reviewers noted that its performance was not as exhilarating as that of the higher-powered models. Compared to the S 320, the S 280 offered a noticeable fuel economy advantage, making it a more practical choice for drivers who prioritized efficiency. The S 280 also proved to be a reliable vehicle, with the M104 engine being known for its durability.
Legacy
The W140 S-Class, including the S 280 variant, is now considered a classic Mercedes-Benz. The M104 engine, in particular, has earned a reputation for longevity and relatively straightforward maintenance. Today, well-maintained S 280 models are sought after by enthusiasts who appreciate their blend of luxury, comfort, and reliability. While parts availability can be a concern for older vehicles, the M104 engine’s widespread use in other Mercedes-Benz models ensures that many components remain accessible. The S 280 represents a high point in traditional Mercedes-Benz engineering, offering a driving experience that is both refined and rewarding.
