This manual covers the CX, a distinguished executive car produced from 1975. As a successor to the iconic DS, the CX (Series 1) built upon a legacy of innovation, featuring advanced technologies such as its hydropneumatic suspension, DIRAVI power steering, and a highly aerodynamic design. Engineered for comfort, ride quality, and avant-garde styling, the CX competed in the high-end European sedan segment against notable contemporaries like the Mercedes-Benz W116 and BMW E23. Its development prioritized efficiency and a unique driving experience, making it a significant model in automotive history. This comprehensive English-language, full-service repair manual provides detailed guidance for the full service, repair, maintenance, rebuilding, refurbishment, and restoration of the CX. It encompasses all diagnostic and repair procedures, covering engine mechanicals, fuel and ignition systems, cooling, lubrication, emissions, transmissions, complete electrical systems with wiring diagrams, suspension (including the hydropneumatic system), steering, brakes, bodywork, and interior components. The manual is designed to assist both owners and professional technicians in maintaining and repairing the vehicle, offering in-depth information on scheduled maintenance, fluid specifications, component overhaul, and troubleshooting common and uncommon issues.