The Mercedes-benz W123 280S 1976-1985 Service Repair Manual is a comprehensive guide for anyone looking to repair and maintain their vehicle. This manual is designed for both the do-it-yourselfer and the experienced mechanic, providing detailed instructions and illustrations for every procedure. The manual covers a wide range of topics, including: * **General Maintenance:** Learn how to perform routine maintenance tasks such as oil changes, tire rotations, and fluid checks. * **Troubleshooting:** This section helps you diagnose and fix common problems with your Mercedes-benz W123 280S. * **Engine Service & Repair:** Detailed instructions on engine repair, including rebuilding, tuning, and troubleshooting. * **Transmission Service & Repair:** Learn how to service and repair your transmission, including troubleshooting common issues. * **Brake System:** Get step-by-step instructions for repairing and maintaining your brake system. * **Wiring Diagram:** A complete wiring diagram helps you understand the electrical system of your vehicle. * **Electrical System:** Learn how to troubleshoot and repair electrical problems, including issues with the starter, alternator, and lighting. * **Suspension:** Understand how your suspension works and how to repair and maintain it. * **Periodic Lubrication:** Learn how to properly lubricate your vehicle to prevent wear and tear. * **Steering:** Detailed information on steering repair and maintenance. * **Cooling System:** Learn how to diagnose and fix cooling system problems, including radiator leaks and overheating. * **Fuel Injection:** This section covers the fuel injection system and how to troubleshoot and repair it. * **Fuel System:** Learn how to service and repair your fuel system, including the fuel pump, fuel lines, and fuel tank. * **Emission System:** Get information on the emission system and how to keep it in good working order. * **Heater/Air Conditioning:** Learn how to diagnose and repair your heater and air conditioning system. * **Engine Control System:** This section provides information on the engine control system and how to troubleshoot and repair it. * **Chassis/Body:** Learn how to repair and maintain the chassis and body of your vehicle. * **Restraint System:** Information on the restraint system, including seatbelts and airbags. * **Interior:** Learn how to repair and maintain the interior of your vehicle, including the upholstery, dashboard, and door panels. * **Differential/Drive:** Get information on the differential and drive system, including how to service and repair it. * **Axle:** Learn how to repair and maintain the axles of your vehicle. This comprehensive manual provides all the information you need to keep your Mercedes-benz W123 280S running smoothly for years to come.

The Mercedes-Benz W123 280S, produced from 1976 to 1985, stands as a testament to German engineering excellence and timeless design. This iconic sedan, known for its durability and refinement, embodied the brand's commitment to quality and longevity. The 280S, powered by a robust 2.8-liter inline-six engine, offered a balance of performance and fuel efficiency. The engine, known for its smooth operation and reliability, was paired with a smooth-shifting four-speed automatic transmission. The W123 280S was renowned for its comfortable and spacious interior, equipped with high-quality materials and meticulous craftsmanship. From its plush seats to its well-appointed dashboard, the car exuded a sense of luxury that was unmatched in its class. The W123 280S's body was designed with an emphasis on practicality and safety. Its rigid unibody construction and advanced safety features, including crumple zones and a robust safety cage, made it a pioneer in its time. The car was praised for its handling and ride quality, thanks to its independent suspension system and precise steering. The W123 280S quickly gained a reputation for its exceptional durability, often exceeding 500,000 miles with proper maintenance. It's no surprise that many examples continue to be driven and cherished by enthusiasts worldwide, a testament to the W123's enduring quality and legacy. The W123 280S remains a classic, embodying the spirit of Mercedes-Benz: a harmonious blend of elegance, performance, and durability that continues to impress generations of car enthusiasts.