Positioning:
        
        
            A practical and affordable supermini, the Citroën AX was a popular choice in the European market for its fuel efficiency and compact size. This manual caters to owners and independent mechanics seeking factory-level repair data.
        
     
    
    
        
            Competitors:
        
        
            Competed against models like the Peugeot 205, Renault 5/Supercinq, Ford Fiesta, Opel/Vauxhall Corsa, and Volkswagen Polo of the era.
        
     
    
    
        
            Manual Value Proposition:
        
        
            Provides access to the same diagnostic and repair information used by professional technicians, enabling significant cost savings on labor.
        
     
    
        
            Manual Usability:
        
        
            Features a numbered table of contents, detailed substeps, notes, cautions, warnings, and numbered instructions for clear, step-by-step guidance. Includes detailed illustrations, drawings, and photos for enhanced clarity.
        
     
 
    
    
    
        
            Engine Service Repair:
        
        
            Comprehensive coverage including troubleshooting, maintenance, and repair procedures for all engine variants.
        
     
    
        
            Transmission Service Repair:
        
        
            Detailed procedures for manual and automatic transmission systems, including clutch, gearbox, and drive axles.
        
     
    
        
            Brake System:
        
        
            Diagnosis, repair, and maintenance of hydraulic brake systems, including discs, drums, ABS (if applicable), and parking brake.
        
     
    
        
            Wiring Diagram:
        
        
            Includes detailed electrical wiring diagrams for various vehicle systems.
        
     
    
        
            Electrical System:
        
        
            Coverage of starting and charging systems, lighting, ignition, instrumentation, and accessory circuits.
        
     
    
        
            Suspension:
        
        
            Repair and maintenance of front and rear suspension components, including shock absorbers, springs, and control arms.
        
     
    
        
            Periodic Lubrication:
        
        
            Guidance on lubrication points, intervals, and fluid specifications.
        
     
    
        
            Steering:
        
        
            Diagnosis and repair of steering systems, including power steering (if equipped), tie rods, and steering column.
        
     
    
        
            Cooling System:
        
        
            Maintenance and repair of the cooling system, including radiator, thermostat, water pump, and coolant specifications.
        
     
    
        
            Fuel Injection Fuel System:
        
        
            Detailed information on fuel delivery, fuel injection systems (e.g., Bosch LE2-Jetronic, Magneti Marelli), fuel pump, injectors, and diagnostics.
        
     
    
        
            Emission System:
        
        
            Information related to emissions control systems, including catalytic converters, oxygen sensors, and EVAP (if applicable).
        
     
    
        
            Heater Air Conditioner:
        
        
            Repair and maintenance of HVAC systems, including blower motor, evaporator, condenser, and refrigerant handling.
        
     
    
        
            Engine Control System:
        
        
            Diagnostic procedures and component identification for the engine control unit (ECU) and associated sensors/actuators.
        
     
    
        
            Chassis Body:
        
        
            Procedures for body panel repair, chassis alignment, and structural components.
        
     
    
        
            Restraint System:
        
        
            Information on seat belts and airbag systems (if applicable), including inspection and replacement procedures.
        
     
    
        
            Interior:
        
        
            Procedures for interior trim removal, installation, and repair.
        
     
    
        
            Differential Drive:
        
        
            Service and repair of the differential and drive axles.
        
     
    
        
            Axle:
        
        
            Detailed procedures for axle maintenance and repair.
        
     
    
    
        
            General Maintenance:
        
        
            Routine maintenance tasks such as fluid checks, filter replacements, and inspections.
        
     
    
        
            Troubleshooting:
        
        
            Advanced troubleshooting guide with diagnostic flowcharts and symptom analysis.
        
     
    
        
            Repair Rebuild Refurbish Restore:
        
        
            Comprehensive guidance for all levels of repair, from minor fixes to complete vehicle restoration.
        
     
    
        
            Diagnostics:
        
        
            Detailed diagnostic procedures for all major vehicle systems.
        
     
    
    
        
            Depth:
        
        
            Factory-level technical information covering basic maintenance to complex component overhaul and system diagnostics.
        
     
 
    
    
    
        
            Oil Change:
        
        
            Typically every 10,000 - 15,000 km or 12 months, subject to driving conditions.
        
     
    
        
            Timing Belt Replacement:
        
        
            Critical maintenance item, typically every 80,000 - 120,000 km or 5-6 years for petrol engines (TU series), depending on specific engine and belt type.
        
     
    
    
        
            Engine Oil Viscosity:
        
        
            Commonly 10W-40 or 5W-40 API SG/SH or ACEA A2/A3, depending on engine and climate. Consult manual for specific engine.
        
     
    
        
            Coolant Type:
        
        
            Ethylene glycol based antifreeze, typically orange or pink coloured (e.g., PSA standard).
        
     
    
        
            Brake Fluid:
        
        
            DOT 3 or DOT 4.
        
     
    
        
            Transmission Fluid:
        
        
            Manual: API GL-4 SAE 75W-80 or 75W-90. Automatic: ATF DEXRON II/III.
        
     
    
    
        
            Common Problems:
        
        
            Rusting of sills and wheel arches, degradation of suspension bushings, cooling system leaks (heater matrix), ignition coil pack failures, carburetor or fuel injection issues, exhaust system corrosion.