🏷️ Basic Information Identification Make: Citroen Model: BX Year: 1991 Generation Model Generation: Series 2 👋 Introduction Market Position Target Audience: Professional technicians and knowledgeable DIY mechanics with basic electrical and mechanical concepts. Key Features Manual Value Proposition: Provides factory-level repair and maintenance knowledge, enabling informed decisions for vehicle upkeep and repair. Ease Of Use: Step-by-step procedures and clear guidance designed to replicate the knowledge of factory-trained technicians. Digital Advantage: Instant download capability allows immediate access to repair information, unlike traditional paper manuals. 📋 Manual Details Coverage Areas Language: English Vehicle Scope: Covers all major mechanical, electrical, and bodywork systems for the 1991 Citroen BX. Page Count Estimated Page Count: Varies by specific edition, typically 500-1000 pages for comprehensive factory manuals. Manual Type Manual Type: Repair Service Manual / Workshop Manual Format File Format: PDF Digital Delivery: Instant Download 📖 Manual Coverage Systems Covered Engine Systems: Engine mechanical (assembly, disassembly, tuning), Fuel system (carburetor/injection, fuel pump, lines), Ignition system, Cooling system, Lubrication system, Exhaust system. Drivetrain Systems: Transmission (manual/automatic), Clutch, Driveshafts, Differentials, Axles. Chassis Systems: Suspension (including HYDROPNEUMATIC systems), Steering, Brakes (hydraulic, ABS if equipped), Wheels and Tires. Electrical Systems: Wiring diagrams, Lighting, Starting and Charging systems, Instruments and Controls, Electronic Control Units (ECUs), Radio, Power windows/locks. Body Systems: Body panels, Doors, Hood, Trunk, Bumpers, Interior trim, HVAC (Heating, Ventilation, and Air Conditioning). Procedures Included Maintenance Procedures: Scheduled maintenance, Oil changes, Filter replacements, Fluid checks and top-ups, Tune-ups, Belt inspections and replacement. Repair Procedures: Engine overhaul, Transmission repair, Brake caliper replacement, Suspension component replacement, Electrical component troubleshooting and repair, Bodywork repair. Diagnostics: Troubleshooting guides, Diagnostic trouble codes (DTCs) for electronic systems, Symptom-based diagnostics. Disassembly Assembly: Detailed step-by-step instructions for component removal, disassembly, cleaning, inspection, reassembly, and installation. Technical Depth Depth Of Coverage: Comprehensive coverage from basic maintenance to major overhaul and diagnostics, suitable for professional technicians and advanced DIY mechanics. 📊 Manual Specifications File Specifications Print Quality: Full Printable Zoom Functionality: YES (Zoom IN/OUT) Required Software: Adobe PDF Reader, WinZip (or equivalent unzipping software) Compatibility: All Versions of Windows & Mac Binding Type Binding Type: Digital (PDF Download) - No physical binding Paper Type Paper Type: Not Applicable (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: Inline-4 Cylinder (Petrol/Diesel) Engine Type Variants Engine Variants: Common variants include 1.4L, 1.6L, 1.9L (petrol) and 1.8L, 1.9L (diesel). Specific engine codes like XU5, XU7, XU9, XUD7, XUD9 are relevant. Performance Horsepower Range: Approximately 70-110 hp depending on engine variant and configuration. Torque Range: Approximately 110-170 Nm depending on engine variant and configuration. Fuel System Fuel Delivery: Carburetted (e.g., Solex, Weber) or Bosch/Lucas fuel injection systems, depending on model and market. Diesel engines use injection pumps. Ignition System Ignition Type: Electronic Ignition (Distributorless or Distributor-based with ignition module). Cooling System Cooling Medium: Water-cooled with a thermostat and electric fan. 🔧 Transmission Standard Transmission Type: 5-speed Manual Transmission Optional Transmission Type: 4-speed Automatic Transmission (ZF or PSA sourced) Features Clutch Type: Hydraulically operated single dry plate clutch. 📐 Dimensions Exterior Body Styles: Hatchback (5-door), Estate/Wagon (5-door), possibly some saloon variants in specific markets. Length: Approx. 4100-4200 mm (Hatchback), Approx. 4400-4500 mm (Estate) Width: Approx. 1600-1650 mm Height: Approx. 1370-1400 mm (Hatchback), Approx. 1460-1490 mm (Estate) Weights Curb Weight: Approx. 1000-1200 kg, depending on engine and equipment. Gross Vehicle Weight: Typically around 1500-1700 kg. Cargo Trunk Volume: Variable, with folding rear seats offering significant capacity, especially in the Estate version. 🛡️ Safety Features Ratings Crash Test Standards: Models from this era were tested under various European safety standards of the time; specific Euro NCAP ratings may not be directly applicable or comparable to modern standards. Active Features Brake System: Disc front brakes, often drum rear brakes. ABS was an optional feature on higher trims or later models. Passive Features Restraint Systems: Seat belts (front and often rear). Airbags were not standard in 1991 for most BX models. Body Structure: Designed with crumple zones, reflecting contemporary safety philosophies. 💡 Technology Features Infotainment Audio System: Basic AM/FM radio with cassette player, often with factory-fitted speakers. Aftermarket upgrades are common. Dashboard Instruments: Analogue gauges for speedometer, tachometer (optional), fuel level, coolant temperature, oil pressure. Warning lights for various systems. Driver Assistance Driver Assistance Systems: Limited to ABS on some higher trims/later models. No electronic stability control or advanced driver-assistance systems (ADAS) as per 1991 standards. Connectivity Connectivity Features: None in the modern sense. Pre-dates widespread adoption of auxiliary inputs, USB, or Bluetooth. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 10,000 km or 12 months, whichever comes first (refer to manual for specific engine variant and oil type). Timing Belt Replacement: Crucial: Every 80,000-100,000 km or 5-6 years, as failure can cause catastrophic engine damage. The manual will specify the exact interval and procedure. Fluid Specifications Engine Oil Specification: API SG/SH or ACEA A2/A3, viscosity typically 10W-40...