This comprehensive Mercedes-Benz W123 280 and 280C Service Repair Workshop Manual covers models from 1976 to 1985. It provides detailed instructions and guidance for servicing and repairing your vehicle, covering all major systems and components. The information within this manual is the same information used by authorized Mercedes-Benz dealers to service and repair these vehicles.

Inside, you’ll find step-by-step instructions, diagrams, illustrations, wiring schematics, and specifications to help you diagnose and repair your Mercedes-Benz W123 280 and 280C.

The manual covers a wide range of topics, including:

* General Information: This section will provide you with important vehicle information such as safety precautions, maintenance schedules, and specifications.
* Engine Mechanical System: This section will guide you through the repair and maintenance of the engine, including the cylinders, pistons, valves, camshaft, crankshaft, and connecting rods.
* Engine Electrical System: The manual will detail the operation and repair of the engine’s electrical system, including the starter, alternator, ignition system, and sensors.
* Emission Control System: This section will cover the components and operation of the emission control system, including the catalytic converter, exhaust gas recirculation system, and evaporative emission control system.
* Fuel System: The manual will go into detail concerning the operation and repair of the fuel system, which includes the fuel tank, fuel lines, fuel pump, fuel injectors, and fuel filter.
* Clutch System: This section covers the clutch system, which includes the clutch pedal, clutch disc, pressure plate, and release bearing.
* Manual Transaxle System: This section will guide you through the operation and repair of the manual transmission, including the gears, shift levers, and synchronizers.
* Automatic Transaxle System: The manual will provide information and instructions on the automatic transmission, including the torque converter, valve body, and planetary gearset.
* Driveshaft and Axle: This section covers the operation and repair of the driveshaft and axle assemblies.
* Suspension System: The manual will guide you through the repair and maintenance of the suspension system, including the springs, shock absorbers, struts, and control arms.
* Steering System: The manual will cover the steering system, including the steering wheel, steering column, steering gear, and tie rods.
* Restraint System: This section covers the operation and repair of the vehicle's restraint system, including the seat belts and airbags.
* Brake System: The manual provides detailed information on the brake system, including the brake pedal, master cylinder, brake calipers, brake pads, and brake rotors.
* Body (Interior and Exterior): You will find instructions on how to repair and maintain the interior and exterior body panels, trim, and accessories.
* Body Electrical System: This section covers the electrical components of the body, including the lights, horn, and other electrical accessories.
* Heating, Ventilation, and Air Conditioning: The manual will cover the heating, ventilation, and air conditioning system, including the heater core, blower motor, and air conditioning compressor.

Whether you are a seasoned mechanic or a DIY enthusiast, this manual will equip you with the knowledge and tools to confidently service and repair your Mercedes-Benz W123 280 and 280C.

The Mercedes-Benz W123, a stalwart of the automotive world, remains a celebrated symbol of German engineering and timeless design. Produced from 1976 to 1985, the W123 marked a significant departure from its predecessor, the W114/115, boasting a more robust body-on-frame construction and a wider array of engines. The 280 and 280C variants, specifically, embodied the essence of the W123's appeal, offering a blend of performance, comfort, and reliability that transcended the era. The 280, powered by a 2.8-liter inline-six engine, delivered a smooth and responsive driving experience, while the 280C, boasting a coupe body style, exuded an air of elegance and sporty sophistication.

Beyond their powertrains, the W123 280 and 280C models showcased Mercedes-Benz's commitment to engineering excellence. Features like independent suspension, rack-and-pinion steering, and a robust braking system ensured a comfortable and safe driving experience. The interiors, characterized by their high-quality materials and meticulous craftsmanship, provided a haven of luxury and practicality. The W123, with its timeless design, exceptional durability, and unwavering reliability, solidified its status as a classic and earned a coveted place in automotive history. Today, the W123 remains an enduring symbol of German engineering prowess and continues to captivate enthusiasts with its timeless elegance and enduring performance.