🏷️ Basic Information Identification Make: Citroën Model: Ax Year: 1990 Codes Chassis Code Series: ZA 👋 Introduction Market Position Segment: Supermini / City Car Target Audience: Cost-conscious urban drivers, first-time car buyers, economy-focused motorists. Competitive Analysis Key Competitors 1990: Ford Fiesta, Peugeot 205, Renault 5, Fiat Uno, Volkswagen Polo. Key Features Design Philosophy: Lightweight construction, compact dimensions, fuel efficiency, affordability, distinctive styling. Manual Value Proposition: Empowers owners to perform maintenance and repairs, saving significant costs compared to professional servicing. 📋 Manual Details Coverage Areas Engine Coverage: All Engine Types (Petrol & Diesel) Transmission Coverage: All Transmission Types (Manual & Automatic) Trim Level Coverage: All Trim Levels Page Count Estimated Page Count: Hundreds of pages (typical for comprehensive workshop manuals) Manual Type Type: Workshop Repair Service Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Service And Repair: Comprehensive overhaul, component testing, timing belt/chain, gasket replacement, cylinder head work, piston and ring service, crankshaft and bearing service. Cooling System: Radiator, water pump, thermostat, hoses, fan operation, coolant specifications and bleeding procedures. Fuel System: Fuel pump, fuel filter, fuel injectors (petrol), carburettor (if applicable to specific engines), fuel lines, fuel tank, fuel pressure testing. Emission System: Catalytic converter, oxygen sensors, EGR system (if equipped), emission control components and testing. Transmission Service And Repair: Manual gearbox overhaul, clutch replacement, automatic transmission service (fluid changes, adjustments, potential rebuild procedures), drive shafts, CV joints. Brake System: Front and rear brake pad replacement, disc and drum servicing, brake caliper overhaul, brake lines and hoses, brake fluid specifications and bleeding, parking brake adjustment. Suspension: Front suspension (MacPherson struts, wishbones), rear suspension (torsion beams, trailing arms), shock absorber replacement, spring replacement, wheel bearing service, alignment specifications. Steering: Steering rack, tie rod ends, power steering system (if equipped), steering column, wheel alignment procedures. Electrical System: Battery, starter motor, alternator, ignition system (coil, distributor, spark plugs), lighting system, fuses, relays, indicators, horn, dashboard instruments. Wiring Diagrams: Detailed, specific wiring diagrams for all electrical circuits, including engine management, lighting, accessories, and more. Chassis And Body: Body panel removal/installation, door mechanisms, hinges, locks, glass replacement, underbody corrosion protection, chassis structure. Restraint System: Seat belt inspection, adjustment, and replacement (if applicable to 1990 models). Interior: Dashboard removal, seat removal, trim panel replacement, heater controls. Heater And Air Conditioning: Heater core, blower motor, ducting, controls. Air conditioning system diagnosis and refrigerant handling (if factory-equipped). Procedures Included General Maintenance: Oil changes, filter replacements, fluid level checks, tire pressure checks, general inspection procedures. Troubleshooting: Diagnostic charts for common symptoms, electrical fault finding, mechanical issue resolution. Engine Service And Repair Procedures: Step-by-step instructions for all engine mechanical repairs, including torque specifications and special tool requirements. Transmission Service And Repair Procedures: Detailed procedures for gearbox and clutch overhaul, fluid change intervals, and troubleshooting. Brake System Repair Procedures: Complete guide to brake servicing, including bleeding and component replacement. Electrical System Diagnostics: Detailed guidance for diagnosing electrical faults, using wiring diagrams, and testing components. Suspension And Steering Repair: Instructions for replacing suspension components, adjusting steering geometry, and servicing steering systems. Periodic Lubrication: Recommended lubrication points and intervals for various vehicle components. Disassembly And Assembly: Detailed procedures for removing and reinstalling major components. Cleaning And Reinstalling: Instructions on cleaning components during repair and proper reassembly techniques. Technical Depth Depth: Comprehensive Professional Technician Level Diagnostic Capabilities: Advanced diagnostics for engine, electrical, and mechanical systems. Rebuild Procedures: Detailed procedures for engine and transmission rebuilds. Illustrations And Diagrams: Hundreds of detailed illustrations, drawings, and photos to guide repair procedures. Troubleshooting Guidance: Specific fault codes, diagnostic trees, and step-by-step problem-solving. 📊 Manual Specifications File Format Format: PDF Compatibility: Compatible with all versions of Windows & Mac Print Quality Printability: Full Printable Zoom Functionality: Zoom IN/OUT Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Delivery Delivery Method: Instant Download Requirements Software Requirements: Adobe PDF Reader & WinZip ⚙️ Engine Specifications Primary Engine Engine Codes Examples: TU9M (1.1L), TU1CP (1.1L), XUD7 (1.8L Diesel). Specific engine codes vary by market and trim. Performance Horsepower Range: Approximately 45-75 hp (petrol), 60 hp (diesel). Varies by engine variant. Torque Range: Varies by engine, typically 75-100 Nm (petrol), 110-120 Nm (diesel). Fuel System Fuel Delivery Petrol: Single-point or multi-point fuel injection, or carburetion depending on engine and market. Fuel Type: Unleaded Petrol (RON 95-98), Diesel (for diesel variants). 🔧 Transmission Standard Manual Transmission: Likely 4-speed or 5-speed manual gearbox. Optional Automatic Transmission: Optional automatic transmission may have been available on certain models/markets. Features Clutch Type: Single dry plate clutch. 📐 Dimensions Exterior Length: Approx. 3,400 mm Width: Approx. 1,620 mm Height: Approx. 1,340 mm Weights Curb Weight: Approx. 750-850 kg (depending on engine and equipment). 🛡️ Safety Features Ratings Crash Test Data Availability: Limited official crash test data publicly available for this specific year and model compared to modern standards. Early...