Positioning:
        
        
            The Citroën C15 was a light commercial vehicle (LCV) designed as a utilitarian workhorse, renowned for its robust build quality, practicality, and affordability, particularly in European markets.
        
     
    
    
        
            Competitors:
        
        
            Competed primarily with vehicles like the Peugeot 205 Van, Renault Express, Fiat Fiorino, and Ford Escort Van.
        
     
    
    
        
            Practicality:
        
        
            Spacious and versatile cargo area, durable construction, reliable mechanicals derived from passenger car platforms.
        
     
    
        
            Simplicity:
        
        
            Relatively simple mechanical design made it easy to maintain and repair, contributing to its popularity among small businesses and tradespeople.
        
     
 
    
    
    
        
            Engine:
        
        
            Full engine overhaul, diagnostics, tuning, cooling system, lubrication system, fuel system (carburetor and injection), ignition system.
        
     
    
        
            Transmission:
        
        
            Manual gearbox (gearbox types, clutch assembly, driveshafts, maintenance, repair).
        
     
    
        
            Suspension:
        
        
            Front and rear suspension components, shock absorbers, springs, control arms, steering knuckle, alignment procedures.
        
     
    
        
            Brakes:
        
        
            Front and rear brake systems (discs/drums), hydraulic system, parking brake, ABS (if equipped), bleeding procedures, component replacement.
        
     
    
        
            Electrical:
        
        
            Wiring diagrams, charging system (alternator, battery), starting system (starter motor), lighting, instrumentation, fuses and relays, accessory circuits.
        
     
    
        
            Body:
        
        
            Body panels, doors, glass, interior trim, seat adjustment, maintenance and repair of bodywork.
        
     
    
        
            Steering:
        
        
            Manual steering system, steering rack, column, and linkages. Power steering was an option on some later models or higher trims.
        
     
    
        
            Fuel System Diesel:
        
        
            Detailed coverage of Bosch or Lucas fuel injection pumps, injectors, fuel lines, and filters for XUD diesel engines.
        
     
    
        
            Fuel System Petrol:
        
        
            Specific details for Solex or Weber carburetors, fuel pumps, and fuel filters for TU petrol engines.
        
     
    
        
            Exhaust System:
        
        
            Inspection, maintenance, and replacement of exhaust manifold, pipes, catalytic converter (if fitted), and silencer.
        
     
    
    
        
            Maintenance:
        
        
            Routine servicing, oil changes, filter replacements, spark plug replacement, timing belt inspection/replacement, fluid checks and top-ups.
        
     
    
        
            Diagnostics:
        
        
            Troubleshooting guides for common problems, symptom-based diagnostics for engine, transmission, and electrical systems.
        
     
    
        
            Repair:
        
        
            Step-by-step repair instructions for all major mechanical and electrical components, including engine rebuilds, gearbox overhauls, and body repairs.
        
     
    
        
            Wheel Alignment:
        
        
            Specifications and procedures for front and rear wheel alignment, including camber, caster, and toe adjustments.
        
     
    
        
            Engine Diagnostics:
        
        
            Fault codes and diagnostic procedures for both petrol and diesel engines, including methods for checking sensors, actuators, and ECU (if applicable).
        
     
    
        
            Transmission Repair:
        
        
            Complete instructions for gearbox removal, disassembly, component replacement (bearings, synchros, gears), and reassembly.
        
     
    
        
            Electrical Diagnostics:
        
        
            Detailed troubleshooting flowcharts for common electrical issues, testing of starter motors, alternators, and ignition components.
        
     
    
    
        
            Depth:
        
        
            Comprehensive coverage suitable for professional technicians and experienced DIY enthusiasts, including detailed torque specifications, clearances, and diagnostic data.
        
     
    
        
            Special Tools:
        
        
            Identification and usage of special tools required for specific repair procedures, such as timing belt tensioning or suspension component removal.
        
     
 
    
    
    
        
            Engine Family:
        
        
            Various petrol and diesel engines, commonly including the TU series petrol engines and XUD series diesel engines.
        
     
    
    
        
            Power Output Range:
        
        
            Approximately 45-75 hp depending on engine variant.
        
     
    
        
            Torque Range:
        
        
            Approximately 80-120 Nm depending on engine variant.
        
     
    
    
        
            Fuel Delivery:
        
        
            Carburetor (petrol) and indirect injection (diesel) common across various models.
        
     
    
    
        
            Diesel Options:
        
        
            Popular variants include the 1.8L (XUD7) and 1.9L (XUD9) naturally aspirated diesel engines known for their durability and fuel economy.
        
     
    
        
            Petrol Options:
        
        
            Commonly featured the 1.1L (TU1) and 1.4L (TU3) petrol engines.
        
     
    
        
            Petrol Displacement:
        
        
            Common petrol engines include 1.1L (1124 cc) and 1.4L (1360 cc).
        
     
    
        
            Diesel Displacement:
        
        
            Common diesel engines include 1.8L (1769 cc) and 1.9L (1905 cc).
        
     
 
    
    
    
        
            Length:
        
        
            Approximately 3,970 mm (156.3 in)
        
     
    
        
            Width:
        
        
            Approximately 1,620 mm (63.8 in)
        
     
    
        
            Height:
        
        
            Approximately 1,800 mm (70.9 in)
        
     
    
        
            Wheelbase:
        
        
            Approximately 2,550 mm (100.4 in)
        
     
    
    
        
            Load Volume:
        
        
            Significant cargo capacity, often exceeding 2,500 liters with rear seats folded or removed.
        
     
    
    
        
            Gross Vehicle Weight:
        
        
            Varies by configuration, typically around 1600-1800 kg.
        
     
 
    
    
    
        
            Oil Change:
        
        
            Typically every 7,500 - 10,000 miles or 12 months for petrol, and 10,000 - 12,000 miles or 12 months for diesel, depending on usage and oil type.
        
     
    
        
            Timing Belt:
        
        
            Around 60,000-80,000 miles or 5 years for petrol engines (TU series), and generally longer intervals or chain-driven for XUD diesels (check specific engine).
        
     
    
    
        
            Engine Oil:
        
        
            API SG/SH or ACEA A2/A3 for petrol, API CF or CD for diesel. Viscosity typically 10W-40 or 15W-40, but check manual for specific recommendations.
        
     
    
        
            Coolant:
        
        
            Ethylene glycol-based antifreeze, typically a pink or blue mixture. Capacity around 5.5-6.0 liters. Use manufacturer-specified coolant or equivalent.
        
     
    
        
            Brake Fluid:
        
        
            DOT 3 or DOT 4 brake fluid. Bleed and replace every 2 years.
        
     
    
        
            Transmission Oil:
        
        
            API GL-4 specification manual transmission fluid, typically SAE 75W-80 or 75W-90. Capacity around 2.0-2.5 liters.
        
     
    
        
            Power Steering Fluid:
        
        
            If equipped with power steering, typically uses ATF (Automatic Transmission Fluid) or specific hydraulic fluid. Check manual for exact specification.
        
     
    
    
        
            Rust:
        
        
            Prone to corrosion, especially on wheel arches, sills, and rear crossmember. Regular checks and rust treatment are advised.
        
     
    
        
            Suspension Wear:
        
        
            Wear in front suspension components (ball joints, tie rod ends) and rear suspension bushes due to commercial use and vehicle weight.
        
     
    
        
            Diesel Glow Plugs:
        
        
            Diesel variants can experience issues with glow plugs or the glow plug relay, affecting cold starts.
        
     
    
        
            Carburetor Issues:
        
        
            Petrol variants with carburetors can require tuning or cleaning due to wear or blockage.
        
     
    
        
            Clutch Wear:
        
        
            Clutch wear can occur with heavy usage, requiring replacement of the clutch disc, pressure plate, and release bearing.