The Citroën C4 I, produced from 2004 to 2010, is a compact family car known for its distinctive styling and innovative features, including a fixed-center steering wheel. This first-generation model offered a comfortable ride and a focus on safety, achieving a 5-star Euro NCAP rating. It competed in a segment with vehicles like the Volkswagen Golf and Ford Focus, differentiating itself with its avant-garde interior and strong emphasis on occupant protection. Available in hatchback and coupé body styles, the C4 I was offered with a range of efficient petrol and diesel engines, including the popular 1.6 HDi and 1.6i 16V variants, paired with manual or automatic transmissions.

This Service and Repair Manual provides comprehensive coverage for all models and repairs of the Citroën C4 I. It details routine maintenance, scheduled servicing, and in-depth troubleshooting procedures for all major systems, including the engine, transmission, suspension, brakes, and electrical systems. The manual includes detailed technical specifications, diagnostic trouble codes, wiring diagrams, and step-by-step instructions for component removal, installation, and overhaul. Its purpose is to assist owners, mechanics, and technicians in maintaining the vehicle's performance, reliability, and safety throughout its lifespan.