🏷️ Basic Information Identification Make: Citroën Model: C4 Year: 2004 Codes Platform: PSA PF2 👋 Introduction Market Position Target Audience: Owners seeking to perform their own maintenance and repairs, DIY enthusiasts, independent repair shops, and professional mechanics. Competitive Analysis Value Proposition: Provides comprehensive, dealer-level repair information in an accessible digital format, empowering users to reduce repair costs and maintain their vehicles effectively. Key Features Ease Of Use: Simple PDF format, no installation required, easily navigable with searchable text (depending on PDF creation), and printable pages. Instructional Style: Step-by-step illustrated repair procedures, complete walk-throughs of procedures, and mechanical instructions. 📋 Manual Details Coverage Areas Coverage: Engine, Clutch, Gearbox, Propeller Shafts, Rear Axles, Front Axle, Front and Rear Suspensions, Wheels and Tyres, Steering System, Brakes, Bodywork and Chassis Frame, Maintenance, Electric/Electronic System Page Count Estimated Page Count: Highly comprehensive, likely exceeding 1000 pages given the scope of repair and maintenance information Manual Type Type: Service and Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine Systems: Engine mechanicals (cylinder head, block, pistons, crankshaft, camshafts), lubrication system, cooling system, fuel injection system, ignition system, emission control systems, engine management system (ECU) Drivetrain Systems: Clutch operation and replacement, manual gearbox (gear train, synchronizers, shift mechanisms), automatic gearbox (if applicable, although not explicitly stated), propeller shafts, drive shafts, CV joints, rear axle assembly, front axle assembly Suspension And Steering: Front suspension components (struts, wishbones, anti-roll bar), rear suspension components (torsion beam, shock absorbers, trailing arms), wheel bearing replacement, steering system (rack and pinion, power steering pump, steering column), wheel alignment procedures Braking System: Front and rear brake discs and pads, brake caliper overhaul, brake fluid replacement, hydraulic system bleeding, ABS (Anti-lock Braking System) components and diagnostics, parking brake system Bodywork And Chassis: Chassis frame construction, body panel removal and installation, door mechanisms, hood and trunk operation, interior trim removal, glass replacement, anti-corrosion treatment Electrical And Electronic Systems: Wiring diagrams, battery, starter motor, alternator, lighting system (headlights, taillights, interior lights), power windows, central locking, instrument panel, dashboard components, infotainment system wiring, diagnostic connector (OBD-II) access and interpretation HVAC System: Heating, Ventilation, and Air Conditioning (HVAC) system operation, refrigerant servicing (if covered), blower motor, climate control panel, cabin air filter replacement Procedures Included Maintenance Procedures: Routine maintenance (oil changes, filter replacements, spark plug changes, fluid checks and top-ups), brake system checks, suspension inspection, tire rotation and pressure checks Repair Procedures: Step-by-step instructions for component removal, inspection, repair, and reinstallation for all major systems. Includes detailed procedures for engine rebuilds, gearbox overhauls, suspension component replacement, brake caliper servicing, and electrical system troubleshooting. Troubleshooting: Diagnostic guides for identifying common faults, fault codes (where applicable), and step-by-step troubleshooting processes for various systems. Technical Depth Depth: Comprehensive, covering basic maintenance to advanced mechanical and electrical repairs. Suitable for professional mechanics and experienced DIY enthusiasts. Includes detailed torque specifications, diagnostic procedures, and schematics. 📊 Manual Specifications File Format File Format: PDF (Portable Document Format) File Compatibility: Compatible with all Windows Operating Systems, macOS, Linux, iOS, Android, and any device capable of opening a PDF. Print Quality Printable: Yes, individual pages or entire sections can be printed. Image Quality: High-resolution, designed for clear display of images and graphics, recommended to use Adobe PDF Reader for optimal viewing. Binding Type Binding: Digital (no physical binding) Paper Type Paper Type: N/A (Digital format) ⚙️ Engine Specifications Primary Engine Engine Options 2004 C4: Likely includes the 1.4L (ET3), 1.6L (TU5), and 2.0L (EW10) petrol engines, and potentially the 1.4L (DV4) and 1.6L (DV6) HDi diesel engines. Specific engine codes and variants will be detailed within the manual. Performance Typical Petrol Power Output: Ranges from approximately 75 hp (1.4L) to 138 hp (2.0L) depending on the specific engine variant. Typical Diesel Power Output: Ranges from approximately 68 hp (1.4 HDi) to 90 hp (1.6 HDi). Fuel System Fuel Injection Type: Multi-point fuel injection (MPI) for petrol engines, Common Rail Direct Injection (CRDI) for HDi diesel engines. Fluid Specifications Engine Oil Grade: Typically 5W-40 or 10W-40 for petrol engines, and 5W-30 low-ash oil for HDi diesel engines. Specific PSA approvals (e.g., B71 2294, B71 2290) will be listed. Fluid Capacities Engine Oil Capacity: Varies by engine, typically around 3.5 to 4.5 liters for petrol engines and 4.0 to 5.0 liters for diesel engines. Precise capacities will be in the manual. 🔧 Transmission Standard Standard Transmission: Likely a 5-speed manual transmission (e.g., BE4 gearbox). Optional Optional Transmission: Possibly a 4-speed automatic transmission (e.g., AL4) for some engine variants. Features Gearbox Fluid: Manual gearbox typically uses GL-4 specified gear oil. Automatic transmission fluid (ATF) specific to the AL4 gearbox. Specific part numbers and viscosities will be detailed. 📐 Dimensions Exterior Body Styles: Hatchback (3-door and 5-door) and possibly a sedan variant (C4 Sedan) depending on market. Length Approx: Around 4260 mm for the hatchback. Width...