🏷️ Basic Information Identification Make: Citroën Model: C4 Year: 2007 Engine: 1.6L Codes Platform Code: PSA PF2 Engine Code Prefix: NFU (for TU5JP4 variant) 👋 Introduction Market Position Segment: Compact family car (C-segment) Competitive Analysis Competitors: Volkswagen Golf, Ford Focus, Vauxhall/Opel Astra, Peugeot 307, Renault Mégane Key Features Design Philosophy: Distinctive, avant-garde styling, emphasis on comfort and practicality Interior Innovation: Central digital instrument cluster, sculpted dashboard design Unique Selling Points Handling: Comfort-oriented ride with competent handling, often praised for its stability 📋 Manual Details Coverage Areas Coverage: All models and all repairs A-Z Page Count Pages: Extensive (estimated 1500-2000+ pages based on comprehensive nature) Manual Type Type: Factory Service & Repair Manual Language Language: English Format Format: Digital (likely PDF), searchable 📖 Manual Coverage Systems Covered Powertrain: Engine Mechanical, Fuel System, Ignition System, Emission Control, Exhaust System Transmission: Manual Gearbox (M5-type), Automatic Gearbox (AL4 commonly found with 1.6L), Clutch System Chassis: Suspension (Front MacPherson Strut, Rear Torsion Beam), Steering System (Hydraulic Power Steering), Braking System (ABS, EBD, Front Discs, Rear Discs/Drums), Wheels and Tires Electrical: Body Electrical, Lighting Systems, Instrumentation, Audio System, Climate Control, Central Locking, Power Windows, Airbag System (SRS), ECU Diagnostics and Wiring Diagrams Body: Body Construction, Exterior Panels, Interior Trim, Doors, Hood, Tailgate, Sealing Procedures Included Maintenance: Routine maintenance, oil changes, filter replacements, fluid checks, spark plug replacement, belt replacement Diagnostics: Component testing, fault finding, diagnostic trouble codes (DTCs), use of diagnostic tools Repair: Engine overhaul, transmission rebuild, suspension component replacement, brake caliper overhaul, electrical component repair, body panel repair Troubleshooting: Systematic approaches to identifying and resolving common and uncommon issues Disassembly Assembly: Detailed step-by-step instructions for component removal and installation Technical Depth Depth: Comprehensive, from basic checks to full engine and transmission rebuilds, including electrical schematics and diagnostic procedures 📊 Manual Specifications File Format Digital Format: PDF Print Quality Quality: High-resolution scans of original factory documentation Binding Type Binding: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) Searchability Text Search: Searchable text for quick information retrieval ⚙️ Engine Specifications Primary Engine Engine Type: Inline 4-cylinder, naturally aspirated petrol Engine Code Example: NFU (EC5 variant of TU5JP4) Displacement: 1587 cc Bore X Stroke: 78.5 mm x 82.0 mm Performance Horsepower Bhp: 110 bhp (at 6000 rpm) Torque Lb-Ft: 107 lb-ft (at 3750 rpm) Fuel System Fuel Delivery: Multi-point Fuel Injection (MPI) Fuel Type: Unleaded Petrol (RON 95 recommended) Emission Control Emission Standard: Euro IV compliant Engine Management ECU Type: Bosch Motronic or similar (specific to model/market) 🔧 Transmission Standard Type: 5-speed Manual (e.g., BE4 series) Optional Type: 4-speed Automatic (AL4 'Tiptronic' with sequential shift) - common with 1.6L Features Automatic Modes: Sport and Snow modes available on AL4 Fluid Specifications Manual Fluid: API GL-5, SAE 75W-80 (e.g., PSA specific or equivalent) Automatic Fluid: ATF LT 71141 or equivalent (e.g., Mobil ATF LT 71141) 📐 Dimensions Exterior Length: Approx. 4260 mm Width: Approx. 1773 mm Height: Approx. 1458 mm Wheelbase: Approx. 2608 mm Interior Seating Capacity: 5 Cargo Boot Capacity: Approx. 320 - 360 liters (depending on configuration) Weights Kerb Weight: Approx. 1250 - 1300 kg Gross Vehicle Weight: Varies by model, typically around 1800-1900 kg 🛡️ Safety Features Ratings Euroncap Rating: 5 Stars (for Euro NCAP 2007) Child Occupant Protection: 4 Stars Pedestrian Protection: 3 Stars Active Features ABS: Standard, with EBD (Electronic Brakeforce Distribution) and EBA (Emergency Brake Assist) Esp: Optional on some variants Passive Features Airbags: Driver, passenger, side, and curtain airbags standard on many models Seatbelts: Pre-tensioning front seatbelts with force limiters, ISOFIX child seat mounts Steering Column: Collapsible steering column 💡 Technology Features Infotainment Audio System: Factory fitted radio/CD player with steering wheel controls, often with auxiliary input or MP3 compatibility. Navigation: Optional integrated navigation system (MyWay or similar) available on higher trims. Driver Assistance Cruise Control: Optional cruise control and speed limiter. Parking Sensors: Optional rear parking sensors. Connectivity Bluetooth: Optional Bluetooth hands-free system available. Instrumentation Display Type: Central digital instrument cluster with multi-function display. 🔧 Maintenance Service Intervals Oil Change Interval: Typically 12,500 miles or 12 months, whichever comes first. Check manual for specific engine oil type requirements. Timing Belt: Check manual for replacement interval, typically around 60,000-90,000 miles or 5-6 years for the 1.6L TU5JP4 engine. Some variants may have chain driven camshafts. Spark Plugs: Refer to manual; typically replaced at 30,000-60,000 mile intervals depending on plug type (standard vs. long-life). Fluid Specifications Coolant: PSA Type 052, or OAT coolant (Organic Acid Technology) - typically pink/red or blue, mixed 50/50 with distilled water. Capacity ~7.0 Liters. Brake Fluid: DOT 4 (e.g., PSA B71 2375 or equivalent). Capacity ~1.0 Liter. Power Steering Fluid: LHM Plus (or specific PSA hydraulic fluid) for hydraulic power steering systems. Capacity ~1.0-1.2 Liters. Engine Oil: Refer to manual for exact specification, commonly PSA B71 2290 (Low SAPS for diesel) or PSA B71 2300 (for...