Mercedes Benz 300SL

Mercedes-Benz 300SL Gullwing Coupe Workshop Repair Service & Maintenance Manual (1954-1957)

Mercedes-Benz 300SL Gullwing Coupe (1954-1957)

The Mercedes-Benz 300SL is an iconic sports car produced by the German automaker Mercedes-Benz. It was initially introduced as a two-seat coupe in 1954, with the famous “Gullwing” doors that open upwards. The “300” in its name refers to its 3.0-litre engine displacement, while “SL” stands for “Sport Leicht” (Sport Light) in German, indicating its lightweight construction and sporty nature.


  • The most distinctive feature of the 300SL is its Gullwing doors, which swing upwards instead of opening outward like traditional doors. This design was necessitated by the car’s innovative space frame chassis, which required higher door sills.
  • Its sleek and aerodynamic design, with a long hood and a short rear deck, epitomizes classic sports car aesthetics.
  • The body was crafted from lightweight aluminium alloy to enhance performance.


  • The 300SL was powered by a 3.0-litre inline-six engine, initially producing around 215 horsepower.
  • It was equipped with a pioneering Bosch mechanical direct fuel injection system, which was a first for a production car, contributing to its impressive power output.
  • With its advanced engine and lightweight construction, the 300SL was capable of achieving top speeds of over 160 mph (257 km/h) and accelerating from 0 to 60 mph in under 8 seconds, making it one of the fastest production cars of its time.


  • The Mercedes-Benz 300SL gained widespread acclaim for its combination of performance, engineering innovation, and striking design.
  • It achieved numerous victories in motorsport, including wins at prestigious races like the 24 Hours of Le Mans, the Carrera Panamericana, and the Mille Miglia.
  • Today, the 300SL is regarded as a classic car icon and a symbol of automotive engineering excellence. Well-maintained examples command high prices at auctions and are highly sought after by collectors worldwide.


  • Apart from the iconic Gullwing coupe, Mercedes-Benz also produced a convertible version of the 300SL, known as the 300SL Roadster, which was introduced in 1957. The Roadster featured conventional doors and additional comfort features, making it more suitable for everyday driving.


  • The Mercedes-Benz 300SL is often credited with setting the standard for modern sports cars and influencing the design of subsequent Mercedes-Benz models.
  • Its innovative features and groundbreaking engineering continue to inspire automotive enthusiasts and engineers alike, cementing its status as one of the most legendary cars in automotive history.

Overall, the Mercedes-Benz 300SL remains a timeless symbol of automotive excellence, admired for its breathtaking design, innovative technology, and exhilarating performance.

The Original Mercedes-Benz 300SL Gullwing Coupe Workshop Repair Service & Maintenance Manual (1954-1957) to Your Ultimate Repair Guide
This original factory service manual from Mercedes-Benz provides complete step-by-step instructions, specifications, and diagrams for repairing, maintaining, and servicing the Mercedes-Benz 300SL Gullwing Coupe from 1954 to 1957.
This manual is packed with all the information you need to take care of your Mercedes-Benz vehicle. It will help you fix your vehicle quickly and easily, saving you money on maintenance and repair costs. With clear and detailed diagrams, pictures, and procedures, this manual makes it simple for even novice mechanics to carry out repairs correctly.
This manual covers all aspects of servicing and repairing your Mercedes-Benz 300SL Gullwing Coupe, including:
– Routine maintenance procedures and specifications
– Cooling and heating systems
– Emission control systems
– Fuel and engine management systems
– Ignition system
– Starting and charging systems
– Complete engine overhaul procedures and specifications
– Turbocharger and supercharger repair and maintenance
– Manual transmission
– Driveshafts, axles, differentials
– Clutches, gears, synchronizers
– Seals and bearings
Chassis Systems
– Steering, suspension and alignment
– Brake system
– Tires, wheels and wheel alignment
– Leaf springs, shocks and vibration dampers
– Ball joints, wheel bearings, tie rods
– Diagnostic trouble codes and sensor testing
Body and Interior
– Seats, seatbelts and supplemental restraint systems
– Instrument cluster, warning systems
– Wiring diagrams and electrical systems
– Body panels, latches and hinges
– Heating and air conditioning
This factory service manual has been prepared exclusively for Mercedes-Benz 300SL Gullwing Coupe owners and professional repair technicians. It will help you quickly identify issues with your vehicle, diagnose problems accurately, and make any repairs or adjustments needed to keep your car running like new.
The step-by-step instructions, diagrams, and specifications will simplify even complex repair procedures for engine, transmission, axles, suspension, brakes, electrical, and more. This manual covers all aspects of repair including overhaul, disassembly, inspection, cleaning, and reassembly procedures.
With the knowledge contained within this service manual, you will be able to perform all service procedures quickly and confidently. This will give you the satisfaction of knowing you completed the work correctly yourself and saved money too.
Key Features of the Mercedes-Benz 300SL Gullwing Coupe Factory Service Manual:
– Highly detailed repair manual with complete specifications and procedures for servicing the major components of your Mercedes-Benz 300SL Gullwing Coupe.
– Step-by-step instructions for tear down, overhaul, and assembly of all components.
– Accurate torque specs, fluid capacities, diagnostic charts, and more.
– Simple enough for beginners but useful for experienced mechanics too.
– Hundreds of exploded view diagrams and detailed photographs for visual assistance.
– Easy to follow troubleshooting guides to accurately diagnose and fix any problem.
– All shop service procedures are covered from basic maintenance to complete engine and transmission rebuilds.
– This is the same manual used by professional Mercedes-Benz 300SL Gullwing Coupe technicians.
With this Mercedes-Benz 300SL Gullwing Coupe service manual, you have all the information required to perform comprehensive repairs, service, and maintenance on your vehicle. No other manual offers you this much detail. It will become your number one resource for working on your Mercedes-Benz vehicle.
The Mercedes-Benz 300SL Gullwing Coupe Factory Service Manual contains the following chapters:
Vehicle Identification
Lubrication and Maintenance
Differential and Driveline
Engine Systems
Cooling System
Fuel System
Heating and Air Conditioning
Emission Control Systems
Introduction and Vehicle Identification Chapters:
These chapters begin with Mercedes-Benz 300SL Gullwing Coupe general information, including vehicle capacities and specifications. All part numbers and identifiers are detailed along with decoding vehicle identification numbers (VIN). This is important information for ordering parts and communicating with the dealer about your specific car.
Lubrication and Maintenance:
This chapter outlines the recommended lubricants and fluids for your engine, transmission, axles, and all other components. Required fluid capacities are listed along with oil and filter change intervals. All periodic maintenance schedules are provided, along with additional maintenance and tune-up procedures. Torque specifications for fasteners, fittings, and hardware are included.
The suspension chapter provides detailed procedures for removing, inspecting, and installing all suspension components including ball joints, control arms, steering linkage, coil springs, leaf springs, shocks, vibration dampers, and wheel alignment. Specifications and torques for fasteners and components are listed. This will help you keep your Mercedes-Benz 300SL Gullwing Coupe riding smoothly for years to come.
Differential and Driveline:
For servicing driveline components, this chapter delivers overhaul procedures for front and rear differentials, axle shafts, universal joints, hubs, and bearings. Specifications for gear ratios, clearances, and preloads assist with reassembly and adjustments. Replacing seals, bearings, bushings, and fluids are covered in detail as well.
The brakes chapter gives step-by-step instructions for safely servicing your brake system. It covers hydraulic components including the master cylinder, wheel cylinders, calipers, hoses, and valves. You’ll find removal, inspection, and installation procedures for pads, shoes, drums, and rotors. Bleeding procedures are provided along with adjusting your parking brake. Specifications for rotor run-out and pedal travel help ensure proper operation.
Engine Systems:
For the heart of your car, this chapter delivers complete overhaul procedures and specifications. It provides disassembly, inspection, repair, reassembly, and testing information for the block, heads, valvetrain, crankshaft, bearings, oil pump, pistons, rods, and more. All torque values and clearances are outlined. This manual also covers cooling and lubrication system service.
Cooling System:
The cooling system chapter provides procedures for draining, flushing, and refilling the radiator. Thermostat and water pump replacement is outlined along with testing procedures. All hoses, belts, coolant sensors, and fan components are detailed for inspection, testing, and replacement if needed.
Fuel System:
For fuel system service, this chapter covers the complete fuel delivery system including fuel pump, filter, injectors, and fuel tank. Gasoline engine and diesel engine fuel systems are covered. You’ll find procedures for inspecting, testing, and replacing components from the tank to the injectors. Fuel pressure and volume testing along with injector cleaning helps restore performance.
The comprehensive electrical chapter provides service information for all electrical components in your Mercedes-Benz. Circuits, wiring diagrams, connectors, and ground points are covered. It details testing and replacing the starter, alternator, batteries, and more. Switches, relays, sensors, actuators, modules, and computer logic are included as well. Troubleshooting guides help solve electrical gremlins quickly.
For steering and suspension components, this chapter provides detailed removal, inspection, and installation procedures. It covers the power steering pump, gearbox, steering linkage, ball joints, wheel bearings, shocks, struts, control arms, and more. Specifications are provided for tightening fasteners, adjusting components, and wheel alignment.
Inside your car, the body chapter covers all interior components including seats, seatbelts, trim, carpeting, upholstery, and accessories. Exterior body components are also detailed including panels, doors, latches, windows, mirrors, and tailgates. You’ll find procedures for body repair and adjustments.
Heating and Air Conditioning:
This chapter delivers service information for testing, evacuating, recharging, and leak testing the A/C system. Compressor, condenser, evaporator, expansion valve, blower motor, and all ducting is covered. The heating system includes the heater core, blower motor, vent controls, and hoses. Troubleshooting guides help pinpoint A/C and heater issues.
Emission Control Systems:
The final chapter deals with emission control systems on your Mercedes-Benz 300SL Gullwing Coupe. It provides procedures for servicing and replacing components that reduce exhaust emissions. From air injection to catalytic converters, all related components are detailed along with diagnostic trouble codes and test specifications.
This original factory service manual contains the most thorough technical details that mechanics and repair shops use to fix Mercedes-Benz vehicles. It is the best repair manual for understanding how to properly maintain, diagnose, and repair mechanical issues on your Mercedes-Benz 300SL Gullwing Coupe. The clear and concise procedures and precise specifications allow you to complete any service or repair job flawlessly.
With this authentic Mercedes-Benz 300SL Gullwing Coupe service manual, you will have the peace of mind knowing you have the ability to fix your car correctly the first time and save money too. It is the essential workshop companion for all Mercedes-Benz 300SL Gullwing Coupe owners, DIY enthusiasts, and professional technicians.
Fix your Mercedes-Benz

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