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 from 1963 to 1971, it succeeded the iconic 300 SL “Gullwing” and aimed to blend sporty performance with luxurious comfort. The 230 SL, built from September 1965 to January 1967, was a key variant within the W113 range, offering a compelling combination of power and refinement. This particular configuration – the 150 horsepower engine paired with a five-speed manual transmission – occupied a sweet spot in the lineup, appealing to drivers seeking a more engaging experience than the automatic offered, while remaining accessible and relatively affordable compared to the later 250 SL and 280 SL models.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | SL |
| Generation | SL Coupe (W113) |
| Type (Engine) | 230 SL (150 Hp) Manual 5-speed |
| Start of production | September, 1965 |
| End of production | January, 1967 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 2 |
| Doors | 2 |
| Fuel consumption (combined) | 10.2 l/100 km (23.1 US mpg, 27.7 UK mpg, 9.8 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 9.7 sec |
| Acceleration 0 – 62 mph | 9.7 sec |
| Acceleration 0 – 60 mph | 9.2 sec |
| Maximum speed | 200 km/h (124.27 mph) |
| Weight-to-power ratio | 8.6 kg/Hp, 115.8 Hp/tonne |
| Weight-to-torque ratio | 6.6 kg/Nm, 151.4 Nm/tonne |
| Power | 150 Hp @ 5500 rpm |
| Power per litre | 65 Hp/l |
| Torque | 196 Nm @ 4200 rpm (144.56 lb.-ft. @ 4200 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 127 II / 127.981 |
| Engine displacement | 2306 cm3 (140.72 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 82 mm (3.23 in.) |
| Piston Stroke | 72.8 mm (2.87 in.) |
| Compression ratio | 9.3:1 |
| 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 | 10.8 l (11.41 US qt | 9.5 UK qt) |
| Kerb Weight | 1295 kg (2854.99 lbs.) |
| Max. weight | 1650 kg (3637.63 lbs.) |
| Max load | 355 kg (782.64 lbs.) |
| Trunk (boot) space – minimum | 340 l (12.01 cu. ft.) |
| Fuel tank capacity | 65 l (17.17 US gal | 14.3 UK gal) |
| Length | 4285 mm (168.7 in.) |
| Width | 1760 mm (69.29 in.) |
| Height | 1290 mm (50.79 in.) |
| Wheelbase | 2400 mm (94.49 in.) |
| Front track | 1486 mm (58.5 in.) |
| Rear (Back) track | 1487 mm (58.54 in.) |
| Ride height (ground clearance) | 139 mm (5.47 in.) |
| Minimum turning circle (turning diameter) | 10 m (32.81 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears and type of gearbox | 5 gears, manual transmission |
| Front suspension | Double wishbone, Transverse stabilizer |
| Rear suspension | Trailing arm |
| Front brakes | Disc |
| Rear brakes | Drum |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Cone worm with recirculation balls |
| Wheel rims size | 5.5J x 14 |
Powertrain & Engine Architecture
The heart of the 230 SL was the M127.981 engine, a 2.3-liter inline-six cylinder powerplant. This engine was a refinement of the M127 first introduced in the 220 SL, featuring a cast iron block and aluminum cylinder head. It employed Bosch mechanical multi-port fuel injection, a relatively advanced system for the time, contributing to improved fuel efficiency and smoother power delivery compared to carbureted engines. The single overhead camshaft (SOHC) operated two valves per cylinder. The 5-speed manual transmission, a Getrag unit, provided precise gear changes and allowed the driver to fully exploit the engine’s power band. This transmission was a significant upgrade over the earlier 4-speed units, offering closer ratios and improved highway cruising.
Driving Characteristics
The 230 SL with the 150 hp engine and five-speed manual offered a balanced driving experience. While not overtly powerful by modern standards, the engine provided ample torque for comfortable cruising and spirited driving. The five-speed gearbox allowed for efficient use of the engine’s power, keeping it within its optimal range. Acceleration to 60 mph took around 9.2 seconds, and the car could reach a top speed of 124 mph. Compared to the automatic version, the manual transmission provided a more direct connection to the engine, enhancing driver engagement. It also offered better fuel economy and reduced drivetrain losses. Compared to the later 250 SL and 280 SL, the 230 SL felt lighter and more nimble, though it lacked the outright power of its successors.
Equipment & Trim Levels
The 230 SL was well-equipped for its time, offering a comfortable and refined interior. Standard features included leather upholstery, wood trim, and a comprehensive instrument panel. The dashboard layout was elegant and functional, with clearly marked gauges. Optional extras included a radio, power windows, and air conditioning. The hardtop, a defining feature of the “Pagoda” SLs, provided excellent weather protection and a secure feeling. A soft top was also available, offering open-air driving enjoyment. Trim levels were relatively simple; the 230 SL was positioned as a mid-range offering, bridging the gap between the more basic 220 SL and the more luxurious 250 SL.
Chassis & Braking
The W113 chassis featured independent suspension all around, with double wishbones and a transverse stabilizer at the front and a trailing arm suspension at the rear. This setup provided a comfortable ride and good handling characteristics. The 230 SL utilized disc brakes at the front and drum brakes at the rear. While the drum brakes at the rear were a cost-saving measure, the overall braking performance was adequate for the car’s weight and performance capabilities. Steering was via a cone worm and recirculating ball system, providing precise control and a good feel for the road.
Market Reception & Comparison
The 230 SL was well-received by critics and buyers alike. It was praised for its elegant styling, comfortable ride, and refined performance. The combination of the 150 hp engine and five-speed manual transmission was particularly popular with enthusiasts who appreciated the more engaging driving experience. Compared to the automatic version, the manual offered better fuel economy and a more direct connection to the engine. It also represented a better value proposition than the more expensive 250 SL. Reliability was generally good, although the Bosch fuel injection system required periodic maintenance.
Legacy
The Mercedes-Benz 230 SL remains a highly sought-after classic car today. Its elegant styling, robust engineering, and enjoyable driving experience have ensured its enduring appeal. The M127 engine, while not overly complex, is known for its durability when properly maintained. The five-speed manual transmission is particularly prized by collectors. Values for well-preserved 230 SLs have steadily increased in recent years, reflecting their growing desirability. These cars represent a golden era of Mercedes-Benz engineering and design, offering a unique blend of style, comfort, and performance.
