The Mercedes-Benz 260 SE, part of the W126 S-Class range produced from June 1985 to September 1986, represented a key entry point into the flagship sedan line. Positioned below the 300 SE and 560 SE, the 260 SE offered a blend of S-Class luxury and refinement with a more accessible price point. This facelifted W126, introduced in 1985, featured subtle but significant updates to the exterior and interior, solidifying the S-Class’s reputation for technological innovation and build quality. The 260 SE was primarily aimed at the European market, where smaller displacement engines were favored due to taxation and fuel economy considerations.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | S-class |
| Generation | S-class SE (W126, facelift 1985) |
| Type (Engine) | 260 SE (166 Hp) |
| Start of production | June, 1985 |
| End of production | September, 1986 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 13.8 l/100 km (17 US mpg, 20.5 UK mpg) |
| Fuel consumption (extra urban) | 7.4 l/100 km (31.8 US mpg, 38.2 UK mpg) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 10.2 sec |
| Acceleration 0 – 62 mph | 10.2 sec |
| Acceleration 0 – 60 mph | 9.7 sec |
| Maximum speed | 205 km/h (127.38 mph) |
| Weight-to-power ratio | 9.2 kg/Hp |
| Weight-to-torque ratio | 6.7 kg/Nm |
| Power | 166 Hp @ 5800 rpm |
| Power per litre | 63.9 Hp/l |
| Torque | 228 Nm @ 4600 rpm (168.16 lb.-ft. @ 4600 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 103 E 26 / 103.941 |
| Engine displacement | 2599 cm3 (158.6 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 82.9 mm (3.26 in.) |
| Piston Stroke | 80.25 mm (3.16 in.) |
| Compression ratio | 9.2:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | SOHC |
| Engine oil capacity | 6 l (6.34 US qt | 5.28 UK qt) |
| Coolant | 8 l (8.45 US qt | 7.04 UK qt) |
| Kerb Weight | 1520 kg (3351.03 lbs.) |
| Max. weight | 2040 kg (4497.43 lbs.) |
| Max load | 520 kg (1146.4 lbs.) |
| Fuel tank capacity | 90 l (23.78 US gal | 19.8 UK gal) |
| Length | 5020 mm (197.64 in.) |
| Width | 1820 mm (71.65 in.) |
| Height | 1437 mm (56.57 in.) |
| Wheelbase | 2930 mm (115.35 in.) |
| Front track | 1555 mm (61.22 in.) |
| Rear track | 1527 mm (60.12 in.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears | 5 gears, manual transmission |
| Front suspension | Double wishbone |
| Rear suspension | Trailing arm |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Steering type | Cone worm with recirculation balls |
| Power steering | Hydraulic Steering |
| Tires size | 205/65 R15 |
| Wheel rims size | 7J x 15 |
Powertrain & Engine Architecture
The 260 SE was powered by the M103 E 26 engine, a 2.6-liter inline-six cylinder powerplant. This engine, part of the M103 family, was known for its smoothness and relatively high specific output. It featured a single overhead camshaft (SOHC) valvetrain operating two valves per cylinder. Fuel delivery was handled by a Bosch K-Jetronic multi-port fuel injection system, a sophisticated system for its time that contributed to improved fuel efficiency and reduced emissions. The engine produced 166 horsepower at 5800 rpm and 228 Nm (168 lb-ft) of torque at 4600 rpm. The engine’s longitudinal mounting and rear-wheel-drive configuration were standard for Mercedes-Benz sedans of this era. The 260 SE was equipped with a 5-speed manual transmission as standard, offering precise gear changes and a more engaging driving experience. While an automatic transmission was available as an option, it wasn’t as commonly selected as the manual.
Driving Characteristics
The 260 SE, with its 166 hp and relatively lightweight construction (compared to the larger-engined S-Class models), offered a balanced driving experience. Acceleration from 0 to 60 mph took approximately 9.7 seconds, and it could reach a top speed of 205 km/h (127 mph). While not a performance-oriented variant, the 260 SE provided sufficient power for comfortable cruising and overtaking. The manual transmission allowed for greater driver control, while the optional automatic offered convenience, albeit at the expense of some responsiveness. Compared to the 300 SE, the 260 SE felt noticeably less powerful, particularly at higher speeds. However, it also felt more nimble and easier to maneuver in urban environments. The 260 SE’s suspension provided a comfortable ride, typical of Mercedes-Benz, absorbing bumps and imperfections in the road with ease.
Equipment & Trim Levels
The 260 SE came standard with a generous array of features, reflecting its status as a luxury vehicle. These included power windows, central locking, a high-quality sound system, and comfortable cloth upholstery. Leather upholstery, a sunroof, and climate control were available as optional extras. The interior design was characterized by its elegant simplicity and high-quality materials. The dashboard featured wood trim and analog gauges, providing a classic and sophisticated look. The 260 SE’s trim level was generally considered to be a step above basic, but below the more opulent 300 SE and 560 SE models.
Chassis & Braking
The W126 S-Class featured a robust chassis with independent suspension all around. The front suspension utilized double wishbones, while the rear employed a trailing arm setup. This configuration provided a comfortable ride and good handling characteristics. The 260 SE was equipped with ventilated disc brakes at the front and solid disc brakes at the rear, providing adequate stopping power. Hydraulic power steering was standard, making the car easy to maneuver at low speeds. The tires were typically 205/65 R15, offering a good balance of grip and ride comfort.
Market Reception & Comparison
The 260 SE was generally well-received by automotive critics, who praised its smooth engine, comfortable ride, and high build quality. However, some critics noted that its performance was not as impressive as that of the larger-engined S-Class models. Compared to the 300 SE, the 260 SE offered a more affordable entry point into the S-Class range, but it lacked the extra power and refinement of its more expensive sibling. Fuel economy was a strong point for the 260 SE, making it a more practical choice for drivers who prioritized efficiency. Reliability was also a key strength, with the M103 engine proving to be durable and long-lasting.
Legacy
The Mercedes-Benz 260 SE, while not the most sought-after variant of the W126 S-Class, remains a desirable classic car. The M103 engine is known for its reliability and relatively straightforward maintenance. Today, well-maintained examples of the 260 SE are becoming increasingly collectible. The car’s combination of luxury, refinement, and durability has ensured its enduring appeal. In the used car market, the 260 SE typically commands a lower price than the 300 SE and 560 SE, making it an attractive option for enthusiasts looking for a classic Mercedes-Benz experience without breaking the bank. The W126 S-Class, as a whole, is regarded as a high point in Mercedes-Benz engineering and design, and the 260 SE represents a significant part of that legacy.
