This comprehensive service and repair manual is specifically designed for the Citroen C4 1.6 16V HDi with the 9HZ engine, covering models from the year 2005. It provides in-depth information and detailed instructions, making it an invaluable resource for both experienced mechanics and DIY enthusiasts. The manual includes a vast array of information covering all aspects of your vehicle, from basic maintenance procedures to complex repairs. You'll find detailed instructions on: * **General Information:** Understanding the layout and operation of your C4, including safety precautions. * **Periodic Maintenance:** Comprehensive schedules for routine servicing, including oil changes, filter replacements, and other essential tasks. * **Engine:** Detailed information on the 1.6 16V HDi engine, its components, troubleshooting, and repair procedures. * **Fuel System and Throttle Body:** Diagnostics and repair for fuel injection, fuel lines, and throttle body components. * **Cooling and Lubrication System:** Detailed instructions on maintaining and repairing the cooling system, including radiator, thermostat, and coolant. * **Chassis:** Guidance on suspension, brakes, steering, and wheel alignment. * **Electrical System:** Comprehensive wiring diagrams, troubleshooting guides, and repair information for your C4's electrical system. * **Servicing Information:** Step-by-step instructions for various service procedures, including brake adjustments, tire rotations, and fluid changes. * **Emission Control Information:** Understanding and maintaining your C4's emission control systems. * **Wiring Diagrams:** Detailed diagrams illustrating the electrical system's wiring and connections. This manual offers a complete and comprehensive guide to servicing and repairing your Citroen C4 1.6 16V HDi. It is designed to help you maintain your vehicle, diagnose problems, and perform repairs confidently.

The CITROEN C4 1.6 16V HDi, powered by the 9HZ engine, is a compact hatchback that was produced by the French automaker Citroën from 2004 to 2010. This particular model, equipped with the 1.6-liter HDi diesel engine, was known for its fuel efficiency and smooth performance. The 9HZ engine, a common rail direct injection diesel, offered a balance of power and economy, delivering around 90 horsepower and 215 Nm of torque. While the C4 was considered a stylish and practical vehicle, the 9HZ engine found its way into other Citroën models as well, contributing to their reputation for efficient and reliable driving. The CITROEN C4 1.6 16V HDi, with its 9HZ engine, represents a period of significant change for Citroën, where the brand focused on introducing more fuel-efficient models to a market increasingly concerned about emissions and fuel costs. The C4, with its distinctive design, comfortable interior, and the efficient 9HZ engine, was a successful offering in its segment. Its popularity was further fueled by its reputation for reliability, making it an attractive choice for those seeking a practical and economical car. The 2005 Service Repair Manual for this model is an essential resource for mechanics and DIY enthusiasts alike, providing detailed information on all aspects of the vehicle, from routine maintenance to complex repairs. It is an invaluable tool for ensuring the longevity and optimal performance of this popular CITROEN model.