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Introduction
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Market Position
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Segment:
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Compact Family Car (C-segment)
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Brand Philosophy:
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Known for comfort, innovative design, and advanced technology.
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Competitive Analysis
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Competitors:
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Volkswagen Golf, Ford Focus, Opel/Vauxhall Astra, Peugeot 308, Renault Mégane, Mazda 3
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Key Features
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Unique Selling Points:
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Focus on ride comfort (Hydractive suspension in some previous generations, but still comfort-oriented tuning), distinctive styling, practical interior, and efficient engines.
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Design Language:
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Characterized by flowing lines, a distinctive front end with double chevrons, and often a panoramic glass roof option.
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Manual Coverage
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Systems Covered
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Powertrain:
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Engine mechanical, engine management, fuel system, exhaust system, cooling system, lubrication system, ignition system
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Transmission:
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Manual transmission, Automatic transmission (including EGS/ETG/EAT6 variants), clutch system, driveshafts, differentials
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Chassis:
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Suspension (front and rear), steering system, braking system (ABS, ESP, EBD, brake booster, calipers, discs, pads), wheel alignment
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Electrical:
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Battery, charging system, starter, lighting (headlights, taillights, interior), wiring diagrams, fuses, relays, ECUs, body control module (BCM)
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Body:
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Body structure, exterior panels, doors, windows, locks, mirrors, bumpers, interior trim, seats, HVAC (heating, ventilation, air conditioning)
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Electronics:
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Infotainment system, navigation, parking sensors, cameras, cruise control, keyless entry, security systems
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Procedures Included
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Maintenance:
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Scheduled maintenance tasks, fluid changes, filter replacements, inspections, lubrication points
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Diagnostics:
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Troubleshooting guides, fault code interpretation (OBD-II), symptom-based diagnostics
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Repair:
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Component removal and installation, overhaul procedures, adjustments, calibration
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Special Tools:
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Identification and usage of specific Citroën tools required for repairs and diagnostics
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Electrical Diagnostics:
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Detailed wiring diagrams for all vehicle systems, component testing procedures, and diagnosis of electrical faults.
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Body Repair:
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Procedures for panel replacement, dent repair, glass replacement, and corrosion protection.
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Technical Depth
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Depth:
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Comprehensive: Covers everything from basic maintenance to full engine and transmission rebuilds, including electrical diagnostics and bodywork repairs.
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Diagnostic Tools:
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References to diagnostic equipment like Lexia/Diagbox (Citroën's proprietary diagnostic tool) for accessing ECUs, reading live data, and performing adaptations.
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Engine Specifications
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Primary Engine
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Engine Code Examples:
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EB2 (PureTech VTi 3-cylinder turbo), EP6 (THP 1.6L turbo), DV6 (1.6 BlueHDi), DW10 (2.0 BlueHDi)
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Performance
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Popular Engine Hp:
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1.2 PureTech 130 hp, 1.6 BlueHDi 120 hp, 1.6 THP 165 hp
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Torque Delivery:
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Emphasis on low-end torque for responsive driving, especially with turbo petrol engines.
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Fuel System
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Injection Type:
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Direct injection (GDI) for turbo petrol, Common Rail Diesel Injection (CRDi) for diesel engines
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Emission Controls:
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Euro 6 compliant, Diesel Particulate Filter (DPF) for diesel engines, Catalytic converters for petrol engines
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Safety Features
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Ratings
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Euro Ncap:
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5 Stars (for the second generation C4)
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Active Features
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ABS:
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Standard Anti-lock Braking System with Electronic Brakeforce Distribution (EBD) and Emergency Brake Assist (EBA)
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Esp:
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Standard Electronic Stability Program (ESP) with Traction Control System (TCS)
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Driver Assistance:
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Hill Start Assist, optional blind-spot monitoring, lane departure warning
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Passive Features
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Airbags:
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Front airbags, front side airbags, curtain airbags (standard or optional depending on market and trim)
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Seatbelts:
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3-point seatbelts with pretensioners and load limiters on all seats, ISOFIX child seat anchorage points
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Maintenance
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Service Intervals
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Oil Change Interval:
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Typically 15,000 miles (25,000 km) or 12 months, whichever comes first, for petrol engines. Diesel engines may have similar intervals or be linked to DPF regeneration cycles.
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Timing Belt Replacement:
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For 1.2 PureTech engines (timing belt in oil bath), refer to manual; generally around 100,000 miles (160,000 km) or 10 years. For other engines, may be belt or chain driven.
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Fluid Specifications
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Engine Oil Type:
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Specific PSA engine oil standards are critical, e.g., PSA B71 2290 (low SAPS diesel), PSA B71 2312 (for certain PureTech engines), or 0W-30 / 5W-30 viscosity grades meeting ACEA C2/C3 specifications.
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Coolant Type:
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Antifreeze/coolant meeting PSA specification (e.g., PSA GEY (purple) or equivalent long-life coolant)
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Brake Fluid Type:
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DOT 4 or DOT 4 LV (Low Viscosity)
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Known Issues
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Common Complaints:
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Potential issues include coil pack failures on 1.2 PureTech engines, water pump leaks on older THP engines, DPF regeneration issues on diesel models if driven short distances, and minor electrical gremlins related to body control modules.
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Suspension Components:
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Wear on anti-roll bar links and bushings can lead to knocking noises.
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