🏷️ Basic Information Identification Make: Citroën Model: Ax Year: 1991 Market Segment: Supermini / City Car 👋 Introduction Market Position Positioning Statement: The Citroën Ax 1991 Repair Service Manual provides essential, factory-level information for owners and technicians aiming to maintain, diagnose, and repair the popular French supermini. Competitive Analysis Comparison To Alternatives: Offers equivalent detail to original factory service manuals, surpassing basic owner's manuals and offering a more accessible format than physical workshop manuals. Key Features Feature 1: Step-by-step repair procedures for all major vehicle systems. Feature 2: Critical specifications, including torque values, clearances, and tolerances. Feature 3: Illustrations, diagrams, and pictures to aid in comprehension and execution of repairs. Feature 4: Diagnostic information and troubleshooting guides. 📋 Manual Details Coverage Areas Coverage Focus: Comprehensive repair and service Target Audience: Professional technicians and experienced DIY mechanics Page Count Estimated Page Count: N/A (Digital PDF) Manual Type Type: Service and Repair Manual Language Language: English Format Format: PDF Download Accessibility: Instant Download 📖 Manual Coverage Systems Covered Engine Mechanical: Full engine overhaul, tuning, troubleshooting, cylinder head, block, pistons, crankshaft, camshafts Engine Electrical: Ignition system, starting system, charging system, ECU (Engine Control Unit) and sensor diagnostics Fuel System: Carburetor (likely Weber/Solex for this era) or early fuel injection systems, fuel pump, lines, filters Transmission: Manual transmission (gearbox) overhaul, clutch replacement, shifting mechanisms Drivetrain: Front-wheel drive system, drive shafts, CV joints Suspension: Front suspension (e.g., MacPherson struts), rear suspension, shock absorbers, springs, control arms Steering: Steering rack, column, tie rods, power steering (if equipped) Braking System: Front and rear brakes (likely discs front, drums rear), hydraulic system, brake lines, calipers, wheel cylinders Electrical System: Wiring diagrams, lighting, dashboard instrumentation, fuses, relays, switches, battery Body And Chassis: Body panel repair, door mechanisms, glass, trim, chassis components Heating And Ventilation: HVAC system components, controls, ducting Interior: Seat removal, dashboard disassembly, interior trim Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements, inspections Repair: Step-by-step repair procedures for all major systems Disassembly Assembly: Detailed instructions for component removal and reinstallation Troubleshooting: Diagnostic flowcharts and common issue resolution Cleaning: Component cleaning instructions Technical Depth Depth: Comprehensive, covering from basic maintenance to in-depth mechanical and electrical repairs Diagnostic Capability: Advanced diagnostics for engine management and electrical systems 📊 Manual Specifications File Format File Type: PDF Searchability: Likely searchable text within PDF Print Quality Printability: Full Printable Zoom Capability: Zoom IN/OUT enabled Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) Requirements Software Requirements: Adobe PDF Reader, WinZip (or equivalent unarchiver) Compatibility: All Versions of Windows & Mac ⚙️ Engine Specifications Primary Engine Engine Code Typical: TU1 (e.g., TU1.3, TU1.4) series Engine Type: Inline 4-cylinder, SOHC (Single Overhead Camshaft) Displacement Liters: 1.1L (approx. 1124cc), 1.3L (approx. 1360cc) Bore X Stroke Mm: Varies by specific engine code (e.g., TU1.3: 75.0 x 77.0 mm) Compression Ratio: Typically 9.0:1 to 9.7:1 (varies by variant) Performance Horsepower Ps Approx: 60-70 PS (approx. 59-69 bhp) for 1.3L, 50-60 PS for 1.1L Torque Nm Approx: 85-95 Nm (approx. 63-70 lb-ft) for 1.3L Fuel System Fuel Delivery Type: Single-point or multi-point electronic fuel injection (EFI) on later models, or Weber/Solex downdraft carburetors on earlier/base models. Fuel Type: Unleaded Gasoline (RON 95 or higher) Ignition System Ignition Type: Electronic ignition (distributorless or with distributor, depending on engine variant) 🔧 Transmission Standard Type: 5-speed Manual Transaxle Optional Type: 3-speed Automatic (less common) Features Clutch Type: Single dry plate, hydraulically operated Gear Ratios: Specific ratios available within manual for various models/engines Fluid Specifications Manual Transmission Fluid: API GL-4, SAE 75W-90 or 80W-90 gear oil (refer to manual for exact spec) 📐 Dimensions Exterior Length Mm: 3636 mm Width Mm: 1596 mm Height Mm: 1325 mm Wheelbase Mm: 2343 mm Weights Curb Weight Kg Approx: 700 - 850 kg (depending on engine and equipment) Gross Vehicle Weight Kg Approx: 1200 - 1300 kg 🛡️ Safety Features Ratings Euro Ncap Rating: N/A (Pre-dates formal Euro NCAP testing for this vehicle class) Active Features Active Safety Features: Front disc brakes, rear drum brakes, collapsible steering column Passive Features Passive Safety Features: Seat belts (front, rear depending on market), reinforced passenger safety cell 💡 Technology Features Infotainment Infotainment Features: Basic radio/cassette player (optional on some trims), analogue gauges. Driver Assistance Driver Assistance Features: Limited; primarily focused on mechanical operation rather than electronic aids. Connectivity Connectivity Options: None in the modern sense; basic wiring for radio antenna. 🔧 Maintenance Service Intervals Oil Change Interval Km Miles: Typically 10,000 - 15,000 km (6,000 - 9,000 miles) or 12 months Air Filter Replacement Interval Km: 20,000 - 30,000 km Spark Plug Replacement Interval Km: 30,000 - 40,000 km (depending on plug type) Fluid Specifications Engine Oil Type: API SF/SG or higher, SAE 10W-40 or 5W-40 (check manual for specific viscosity recommendation based on climate) Coolant Type: Ethylene glycol based, long-life antifreeze/coolant (typically...