The Mercedes-Benz W113, marketed as the SL “Pagoda” due to its distinctive, slightly concave hardtop, represented a significant evolution in the SL lineage. Produced between 1963 and 1971, it succeeded the iconic 300 SL “Gullwing” and aimed to blend sporty performance with increased comfort and refinement. The 280 SL, introduced in November 1967 and continuing through March 1971, was the final and most sophisticated iteration of the W113. This variant, equipped with a 2.8-liter inline-six engine producing 170 horsepower and paired with a four-speed manual transmission, occupied the top position in the SL lineup, offering a compelling combination of power, handling, and luxury for the discerning driver.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | SL |
| Generation | SL Coupe (W113) |
| Type (Engine) | 280 SL (170 Hp) Manual 4-speed |
| Start of production | November, 1967 |
| End of production | March, 1971 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 2 |
| Doors | 2 |
| Fuel consumption (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 | 9 sec |
| Acceleration 0 – 62 mph | 9 sec |
| Acceleration 0 – 60 mph | 8.6 sec |
| Maximum speed | 200 km/h (124.27 mph) |
| Weight-to-power ratio | 8 kg/Hp, 125 Hp/tonne |
| Weight-to-torque ratio | 5.7 kg/Nm, 176.5 Nm/tonne |
| Power | 170 Hp @ 5750 rpm |
| Power per litre | 61.2 Hp/l |
| Torque | 240 Nm @ 4500 rpm (177.01 lb.-ft. @ 4500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 130 / 130.983 |
| Engine displacement | 2778 cm3 (169.52 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 86.5 mm (3.41 in.) |
| Piston Stroke | 78.8 mm (3.1 in.) |
| Compression ratio | 9.5:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | SOHC |
| Engine oil capacity | 5.5 l (5.81 US qt | 4.84 UK qt) |
| Coolant | 12.9 l (13.63 US qt | 11.35 UK qt) |
| Kerb Weight | 1360 kg (2998.29 lbs.) |
| Max. weight | 1715 kg (3780.93 lbs.) |
| Max load | 355 kg (782.64 lbs.) |
| Trunk (boot) space – minimum | 340 l (12.01 cu. ft.) |
| Fuel tank capacity | 82 l (21.66 US gal | 18.04 UK gal) |
| Length | 4285 mm (168.7 in.) |
| Width | 1760 mm (69.29 in.) |
| Height | 1306 mm (51.42 in.) |
| Wheelbase | 2400 mm (94.49 in.) |
| Front track | 1484 mm (58.43 in.) |
| Rear (Back) track | 1485 mm (58.46 in.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears and type of gearbox | 4 gears, manual transmission |
| Front suspension | Double wishbone, Transverse stabilizer |
| Rear suspension | Trailing arm |
| Front brakes | Disc |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Cone worm with recirculation balls |
| Wheel rims size | 6J x 14 |
Powertrain & Engine Architecture
The heart of the 280 SL was the M130.983 engine, a 2,778 cc (169.5 cu in) inline-six cylinder powerplant. This engine represented a significant upgrade over the 2.5-liter unit found in earlier W113 models. It featured a cast iron block and aluminum cylinder head, employing a single overhead camshaft (SOHC) design operating two valves per cylinder. Crucially, the 280 SL benefited from Bosch mechanical multi-port fuel injection, a sophisticated system for the time that greatly improved throttle response and fuel efficiency compared to carbureted engines. The engine produced 170 horsepower at 5,750 rpm and 240 Nm (177 lb-ft) of torque at 4,500 rpm. The four-speed manual transmission, a robust unit, provided precise gear changes and allowed drivers to fully exploit the engine’s power.
Driving Characteristics
The 280 SL with the manual transmission offered a distinctly engaging driving experience. While not a raw, overtly sporty car like some contemporary roadsters, it provided a balanced and refined feel. The engine delivered smooth, linear power throughout the rev range, making it easy to drive both on winding roads and during relaxed cruising. The four-speed gearbox, while not offering the close ratios of some later transmissions, was well-matched to the engine’s characteristics. Acceleration to 60 mph took approximately 8.6 seconds, and the car could reach a top speed of 124 mph. Compared to the automatic transmission version, the manual offered greater driver control and a more connected feel, although it required more effort in city driving. The 280 SL’s suspension, featuring double wishbones at the front and a trailing arm setup at the rear, provided a comfortable ride while maintaining good handling characteristics.
Equipment & Trim Levels
The 280 SL was a luxury car, and as such, came well-equipped even in its standard form. Standard features included leather upholstery, a wood-trimmed dashboard, and power-assisted steering. The optional hardtop, a defining feature of the “Pagoda” SLs, provided excellent weather protection and a more coupe-like experience. Other available options included air conditioning, a radio, and power windows. Interior color schemes were typically conservative, with a focus on rich browns, blacks, and beiges. The 280 SL was positioned as the premium offering in the W113 range, and its price reflected this.
Chassis & Braking
The W113 chassis was a robust monocoque construction, providing a strong and rigid platform. The 280 SL featured disc brakes on all four wheels, a relatively advanced feature for the late 1960s, providing excellent stopping power. The steering system utilized a cone worm and recirculation ball mechanism, offering precise control. Suspension components included a transverse stabilizer bar at the front to reduce body roll during cornering. The car’s relatively low weight (approximately 2,998 lbs) contributed to its nimble handling.
Market Reception & Comparison
The 280 SL was widely praised by automotive journalists for its blend of performance, comfort, and style. It was considered a sophisticated and refined grand tourer, capable of covering long distances in comfort and style. Compared to the earlier 230 SL and 250 SL models, the 280 SL offered a noticeable improvement in performance thanks to its larger engine and fuel injection system. While the automatic transmission version was popular in the American market, the manual transmission variant was favored by enthusiasts who appreciated its greater driver involvement. Fuel economy, at around 20.6 mpg, was reasonable for the time, but not exceptional.
Legacy
The Mercedes-Benz W113 280 SL remains a highly sought-after classic car today. Its elegant styling, robust engineering, and enjoyable driving experience have ensured its enduring appeal. The M130 engine, when properly maintained, is known for its reliability and longevity. However, like any classic car, the 280 SL requires regular maintenance and attention to detail. Parts availability is generally good, although some components can be expensive. The 280 SL’s value has steadily increased in recent years, making it a sound investment for collectors and enthusiasts alike. It stands as a testament to Mercedes-Benz’s commitment to quality and engineering excellence during a golden era of automotive design.
