This comprehensive Ford Sierra RS Cosworth Workshop Manual, covering models from 1985 to 1987, is your ultimate resource for repairing, maintaining, and restoring your classic car. From general information and service details to intricate breakdowns of suspension, driveline, brakes, steering, engine mechanicals, cooling, starting, ignition, emission controls, engine controls, transmission, transaxle, exhaust system, fuel system, HVAC, instrumentation & warning systems, battery & charging system, audio systems, lighting, electrical, body interior, and exterior, no aspect of your vehicle is left untouched. The manual provides detailed step-by-step instructions, accompanied by clear illustrations, diagrams, wiring schematics, and specifications, making even complex repairs accessible. Each chapter is carefully designed to guide you through every procedure, with numbered instructions, notes, cautions, and warnings highlighting critical information. Enlarged insets allow for detailed examination of parts, while bold figure numbers ensure a seamless connection between illustrations and instructions. The comprehensive table of contents makes finding the information you need a breeze. This manual empowers you to diagnose and repair electrical issues with ease, combining troubleshooting and service procedures with detailed wiring diagrams. With this manual at your disposal, you'll possess the confidence to tackle any repair or service project on your Ford Sierra RS Cosworth, transforming you from a car owner to a true enthusiast.

The Ford Sierra RS Cosworth, produced from 1985 to 1987, is a high-performance variant of the Ford Sierra, a car that revolutionized Ford's image in the 1980s. This model was the brainchild of a collaboration between Ford and renowned motorsport engineering firm Cosworth. It was a groundbreaking car, designed to dominate the Group A touring car racing scene and bring those performance levels to the road. The RS Cosworth featured a distinctive aerodynamic body kit, including a large rear wing, a front air dam, and side skirts, all designed to improve downforce and handling. It also sported the iconic "Cosworth" badge, instantly recognizable as a symbol of performance and exclusivity. Under the hood, the RS Cosworth housed a 2.0-liter, turbocharged, 16-valve, four-cylinder engine, codenamed YB. This engine, developed in collaboration with Cosworth, produced a remarkable 204 horsepower, making the Sierra RS Cosworth one of the fastest cars of its time. The car was also praised for its impeccable handling, thanks to its sophisticated suspension system and powerful brakes. The Sierra RS Cosworth's performance and exclusivity made it an instant success, becoming a highly sought-after collector's item. The car's timeless design and undeniable performance legacy continue to captivate automotive enthusiasts today, cementing its place as an iconic performance car from the 1980s.