🏷️ Basic Information Identification Make: Citroën Model: C4 Year: 2004 Engine Variant: 1.6i 16V Codes Engine Code: Likely TU5JP4 or EC5 (specific code not provided in product info, but these are common for 1.6L 16V in this era) Chassis Code: Likely B7 (Platform for Peugeot 307 and Citroën C4) 👋 Introduction Market Position Segment: Compact family car / hatchback, competing in the C-segment. Brand Perception: Citroën is known for its distinctive styling, comfortable ride, and innovative features. The C4 represented a significant step in design and technology for the brand in its segment. Competitive Analysis Key Competitors: Ford Focus, Volkswagen Golf, Opel Astra, Renault Mégane, Peugeot 307, Honda Civic, Toyota Auris. Key Features Design: The C4 is recognized for its futuristic and often quirky design, particularly the fixed-hub steering wheel and distinctive interior layouts introduced with the first generation. Comfort And Ride: Citroën's signature comfortable suspension setup, offering a smooth and compliant ride quality. Technology And Innovation: Early adoption of features like automatic headlights, rain-sensing wipers, cruise control, and advanced safety systems for its time. Manual Value Proposition User Benefit: Enables owners to perform maintenance and repairs, saving on dealership costs and extending vehicle life. Provides in-depth understanding of vehicle systems. 📋 Manual Details Coverage Areas Main Coverage: Complete factory service and repair for the Citroën C4 1.6i 16V 2004. Model Years Covered: Primarily 2004, with potential applicability to closely related model years within the first generation. Trim Levels Covered: All Trim Levels (as stated 'All Models/Engines/Trim/Transmissions Types'). Engine Variants Covered: Specifically the 1.6i 16V engine. The mention of 'All Models/Engines/Trim/Transmissions Types' suggests broader coverage within the C4 range, but the primary focus is the specified variant. Page Count Estimated Page Count: Detailed factory service manuals for this era and complexity typically range from 1500 to 3000+ pages. Specific count not provided. Manual Type Type: Factory Service Repair Manual / Workshop Manual Language Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered Powertrain: Engine mechanicals (including disassembly/reassembly), fuel system, throttle body, cooling system, lubrication system, exhaust system. Chassis: Suspension (front and rear), steering system, braking system (including ABS if equipped), wheel bearings, hub assemblies. Electrical: Complete electrical system diagnostics, lighting system, ignition system, charging system, starting system, body control modules, comfort systems. Bodywork: Body panel removal and installation, interior trim, glass, doors, hinges, locks, body sealing. Emissions: Emission control systems, diagnostic trouble codes (DTCs) related to emissions, catalytic converter, oxygen sensors. Procedures Included Maintenance: Periodic maintenance schedules, oil changes, filter replacements, fluid checks and changes, spark plug replacement, brake pad replacement, belt inspection and replacement. Troubleshooting: Diagnostic procedures for common and uncommon faults across all systems, symptom-based troubleshooting guides, interpretation of diagnostic trouble codes. Repair: Step-by-step repair instructions for major components and systems, including engine rebuild, transmission overhaul (if applicable), suspension component replacement, electrical component repair. Diagnostics: Detailed diagnostic steps for engine management, ABS, airbags, climate control, and other electronic systems, often including scan tool data interpretation. Wiring Diagrams: Comprehensive electrical wiring diagrams for all vehicle systems, essential for troubleshooting electrical faults. Technical Depth Depth: Factory-level technical detail, suitable for both DIY enthusiasts with mechanical aptitude and professional technicians. Includes exploded views, torque specifications, special tool requirements, and detailed procedures. 📊 Manual Specifications File Format PDF Quality: High-quality, likely scanned or digitally created factory documentation, with clear text and legible diagrams. Specified as 'top quality diagrams and instructions'. Searchability: Typically PDF documents of this nature are text-searchable, allowing quick access to specific topics. Print Quality Printable: Printable without restriction, allowing users to print specific sections or the entire manual. Binding Type Binding: Digital Download (PDF format) - No physical binding. Paper Type Paper Type: Not applicable for digital download. Completeness Completeness Guarantee: Stated as 'COMPLETE and INTACT as should be without any MISSING/CORRUPT part or pages'. ⚙️ Engine Specifications Primary Engine Engine Type: Inline 4-cylinder, naturally aspirated petrol engine. Displacement: 1.6 Liters (1587 cc, typically) Valvetrain: DOHC (Double Overhead Camshaft), 16 valves. Fuel Delivery: Multi-point Fuel Injection (MPI). Performance Horsepower: Approximately 110 PS (108 hp, 80.9 kW) at around 6000 rpm (typical for TU5JP4). Torque: Approximately 147 Nm (108 lb-ft) at around 4000 rpm (typical for TU5JP4). Fuel System Throttle Body Type: Likely electronic throttle control (drive-by-wire) for this generation and engine size, though earlier models might have had mechanical. Cooling System Cooling Type: Water-cooled, with thermostat-controlled fan. Lubrication System Oil Capacity: Approximately 3.5 - 4.0 liters (check manual for precise spec and recommended oil grade). 🔧 Transmission Standard Type: Likely a 5-speed manual transmission (e.g., BE4 or MA5 variants) as standard. Optional Type: Optionally available with an AL4 (or similar) 4-speed automatic transmission. Features Fluid Type: Manual: SAE 75W-80 GL-5. Automatic: Specific ATF fluid (e.g., LT71141 or equivalent). (Consult manual for exact specifications). 📐 Dimensions Exterior Body Styles: Available as 5-door hatchback and 3-door hatchback. (Other body...