🏷️ Basic Information Identification Make: Citroën Model: C4 Year: 2004 Engine Variant: 2.0i 16V Codes Engine Code Potential: EW10J4 👋 Introduction Market Position Positioning: The Citroën C4 (2004) was positioned as a stylish and comfortable family hatchback in the compact segment. Competitive Analysis Competitors 2004: Competed with vehicles like the Ford Focus, Volkswagen Golf, Peugeot 307, and Opel Astra. Key Features Design Philosophy: Characterized by innovative styling, a comfortable and spacious interior, and a focus on ride quality. Body Styles: Available primarily as a 5-door hatchback, with potential for coupe variants (e.g., C4 Picasso, though this manual specifies C4 Hatchback). 📋 Manual Details Coverage Areas Coverage: Comprehensive service and repair for the Citroën C4 2.0i 16V 2004 model. Page Count Page Count Estimate: Likely exceeds 1000 pages given 'COMPLETE official full service repair manual' description. Manual Type Type: Official Full Service Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, cylinder head, valve train, pistons, connecting rods, crankshaft, lubrication system, cooling system, fuel injection system. Engine Electrical: Ignition system, starter system, charging system, engine control unit (ECU) diagnosis and wiring. Transmission Manual: Clutch operation, manual gearbox disassembly, assembly, and adjustments. Transmission Automatic: Diagnosis and repair of the automatic transmission (if applicable to this variant). Brakes: Brake system diagnosis, front and rear brake service, hydraulic system, ABS system. Suspension: Front and rear suspension components, shock absorbers, springs, control arms, wheel alignment. Steering: Power steering system diagnosis and repair, steering rack, column, and linkages. Electrical Body: Lighting systems, power windows, central locking, wipers, horn, interior and exterior electrical components. HVAC: Heating, ventilation, and air conditioning (HVAC) system diagnosis, refrigerant handling, component replacement. Body Interior: Interior trim removal and installation, dashboard components, seat mechanisms. Body Exterior: Body panel repair, door mechanisms, bumpers, glass replacement. Diagnostics: On-board diagnostics (OBD-II) procedures, fault code interpretation, diagnostic tool usage. Procedures Included Maintenance: Scheduled maintenance tasks, oil changes, filter replacements, fluid checks, belt replacement. Troubleshooting: Systematic troubleshooting guides for common and complex issues. Repair Overhaul: Detailed step-by-step repair and overhaul procedures for all major vehicle components. Wiring Schematics: Complete electrical wiring diagrams for all vehicle systems. Specifications: Torque specifications, clearances, tolerances, fluid capacities, and diagnostic parameters. Part Identification: Identification of specific parts and their locations. Technical Depth Depth: Factory-level detail, suitable for dealership technicians and advanced DIY enthusiasts. 📊 Manual Specifications File Format Format: PDF Searchability: Likely searchable text within the PDF document. Print Quality Printability: Full printable pages, allowing users to print specific sections or the entire manual. Image Zoom: Allows zooming in on images and diagrams for detailed viewing and printing. Binding Type Binding: Digital (PDF), no physical binding. Paper Type Paper Type: N/A (Digital format). ⚙️ Engine Specifications Primary Engine Engine Type: Inline 4-cylinder, naturally aspirated gasoline Displacement: 2.0 Liters (1997 cc) Valvetrain: DOHC (Double Overhead Camshaft), 16 Valves Performance Horsepower Estimated: Approximately 138-140 PS (99-103 kW) at 6000 rpm (exact figures may vary slightly by market/tune). Torque Estimated: Approximately 192 Nm (142 lb-ft) at 4000 rpm (exact figures may vary). Fuel System Fuel Delivery: Electronic Multi-Point Fuel Injection (MPI) Fuel Type: Unleaded gasoline (Octane rating as per manufacturer recommendation, typically 95 RON). Engine Management ECU: Bosch Motronic or similar, with advanced diagnostics. 🔧 Transmission Standard Type: 5-speed Manual Transmission Optional Type: 4-speed Automatic Transmission (likely available as an option). Features Clutch: Hydraulically operated single dry plate clutch. 📐 Dimensions Exterior Length Est: Approx. 4260 mm Width Est: Approx. 1773 mm Height Est: Approx. 1460 mm Weights Curb Weight Est: Approx. 1300-1350 kg (depending on options). 🛡️ Safety Features Ratings Euro Ncap Rating: Awarded 5 stars in Euro NCAP crash tests for adult occupant protection. Active Features ABS: Standard Anti-lock Braking System (ABS) with Electronic Brake-force Distribution (EBD) and Brake Assist (BA). Esp: Optional Electronic Stability Program (ESP) may be available on higher trims. Passive Features Airbags: Multiple airbags, including front, side, and curtain airbags. Seatbelts: Pre-tensioning front seatbelts, ISOFIX child seat anchorage points. 💡 Technology Features Infotainment Infotainment System: Basic infotainment systems with CD player and radio; higher trims may offer more advanced audio options. Driver Assistance Cruise Control: Available cruise control and speed limiter function. Parking Sensors: Optional rear parking sensors. Connectivity Connectivity Options: Limited connectivity by modern standards; may include auxiliary input for audio. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 20,000 km or 1 year, whichever comes first (synthetic oil recommended). Timing Belt Replacement: Recommended replacement interval for the timing belt is usually around 120,000 km or 5-6 years. Fluid Specifications Engine Oil Spec: API SN/SP, ACEA C2 or C3, SAE 5W-30 (check manual for exact specification). Coolant Spec: Glycol-based antifreeze coolant with corrosion inhibitors (e.g., PSA specified coolant). Brake Fluid Spec: DOT 4 brake fluid. Known Issues Coil Packs: Occasional issues with ignition coil packs leading to misfires. Thermostat: Thermostat...