This workshop service and repair manual covers the Citroën CX Series 1, produced between 1974 and 1989, with a focus on the earlier 1974-1985 period. Renowned for its pioneering hydropneumatic suspension, aerodynamic design, and innovative engineering, the CX Series 1 represents a significant chapter in automotive history. Citroën's commitment to advanced technology and driver comfort is evident throughout this iconic model. This manual is an essential resource for understanding and maintaining the unique systems and performance characteristics that define the Citroën CX. This professional workshop manual provides comprehensive coverage for all major systems of the Citroën CX Series 1. It details engine service, transmission repair, suspension and steering, braking systems, and the electrical system, including detailed wiring diagrams. Furthermore, it offers guidance on bodywork, scheduled maintenance, troubleshooting common issues, and technical specifications. The manual is designed to assist owners, mechanics, and technicians in performing accurate diagnostics, repairs, and upkeep, ensuring the longevity and optimal performance of this classic automobile.