The Mercedes-Benz W123 280S 1976-1985 Factory Service Repair Manual is a comprehensive guide for maintaining and repairing your vehicle. This genuine factory manual provides detailed instructions and illustrations to help you perform a wide range of tasks, from basic maintenance to complex repairs. It covers all aspects of your Mercedes-Benz W123 280S, including: General Maintenance: Learn how to perform routine maintenance procedures such as oil changes, filter replacements, and fluid checks. Troubleshooting: The manual includes a detailed troubleshooting guide to help you diagnose and resolve common problems. Engine Service/Repair: Detailed information on engine repair, including rebuilding, tuning, and troubleshooting. Transmission Service/Repair: Comprehensive coverage of transmission service and repair, including adjustments, rebuilds, and troubleshooting. Brake System: Learn how to service and repair your brake system, including bleeding the brakes, replacing brake pads and shoes, and troubleshooting brake problems. Wiring Diagram: The manual provides detailed wiring diagrams for the electrical system, making troubleshooting and repairs easier. Electrical System: Get detailed instructions on servicing and repairing the electrical system, including the starter, alternator, lights, and more. Suspension: Learn how to service and repair the suspension, including replacing shocks, struts, and springs, and troubleshooting suspension problems. Periodic Lubrication: The manual includes a detailed lubrication schedule to help you keep your vehicle in top condition. Steering: Learn about steering system service and repair, including adjusting steering components, replacing steering parts, and troubleshooting steering problems. Cooling System: Get instructions on servicing and repairing the cooling system, including replacing the radiator, thermostat, water pump, and hoses, and troubleshooting cooling system problems. Fuel Injection/Fuel System: Learn how to service and repair the fuel injection system, including replacing fuel injectors, fuel lines, and fuel pumps, and troubleshooting fuel system problems. Emission System: Learn about servicing and repairing the emission system, including replacing the catalytic converter, oxygen sensor, and exhaust components, and troubleshooting emission system problems. Heater/Air Conditioning: The manual provides detailed instructions on servicing and repairing the heating and air conditioning system, including troubleshooting problems and replacing components. Engine Control System: Learn about the operation and maintenance of the engine control system, including troubleshooting and replacing components. Chassis/Body: The manual provides instructions on servicing and repairing the chassis and body of your vehicle, including troubleshooting problems and replacing components. Restraint System: Learn about servicing and repairing the restraint system, including replacing components and troubleshooting problems. Interior: The manual includes instructions on servicing and repairing the interior of your vehicle, including troubleshooting problems and replacing components. Differential/Drive: Learn how to service and repair the differential and drive system, including replacing components and troubleshooting problems. Axle: The manual includes detailed information on servicing and repairing the axles, including replacing components and troubleshooting problems. This comprehensive manual gives you the information you need to keep your Mercedes-Benz W123 280S running smoothly and reliably for many years to come.

The Mercedes-Benz W123 280S, produced from 1976 to 1985, is a classic example of German engineering excellence and timeless design. This mid-size sedan, known for its robust construction and exceptional longevity, was a mainstay in the luxury car market throughout its production run. The 280S model was powered by a 2.8-liter inline-six engine, known for its smooth and reliable performance. This engine, coupled with a four-speed automatic or a five-speed manual transmission, delivered a respectable blend of power and fuel efficiency. The W123 280S stood apart from its competitors with its sophisticated engineering and meticulous attention to detail. Features like independent suspension, power steering, and a spacious interior with ample comfort, ensured a smooth and enjoyable driving experience. Beyond its mechanical prowess, the W123 280S was renowned for its durability and lasting quality. Designed for long-term reliability, the car was built with premium materials and meticulous craftsmanship. The W123's reputation for longevity is further solidified by its iconic status as a "million-mile car," with numerous examples still in service today. The W123 280S was not only a dependable daily driver but also a symbol of German engineering and design excellence. Its sleek lines, classic styling, and refined interior made it a timeless classic, admired for its understated elegance and enduring appeal. Even decades after its production ceased, the W123 280S remains a coveted vehicle, sought after by enthusiasts and collectors worldwide. Its robust construction, timeless design, and exceptional reliability make it a true testament to Mercedes-Benz's commitment to quality and craftsmanship.