Manual Coverage
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Systems Covered
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Engine:
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Detailed coverage of all engine variants offered in 1984, including gasoline (e.g., 1.3L, 1.6L) and possibly early diesel engines. Includes diagnosis, repair, overhaul, cooling system, lubrication, fuel system (carburetor and early fuel injection), ignition system, exhaust system.
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Transmission:
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Comprehensive coverage of manual and automatic transmissions. Includes clutch operation, gearbox overhaul, shifting mechanisms, driveshafts, differential, fluid specifications, and troubleshooting.
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Brakes:
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Detailed information on hydraulic brake systems, including front and rear disc brakes (or drum configurations if applicable), brake fluid specifications, bleeding procedures, caliper and master cylinder overhaul, parking brake system, and ABS if equipped (though less common in '84 BX).
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Suspension:
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In-depth coverage of the signature Citroën hydropneumatic suspension system. Includes component identification (hydropneumatic spheres, pipes, pump, regulators), fluid types, charging procedures, ride height adjustment, component overhaul, and troubleshooting specific to the hydropneumatic system.
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Steering:
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Power steering system diagnosis and repair, including pump, steering rack, fluid types, and common issues.
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Electrical:
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Extensive coverage of the vehicle's electrical system. Includes wiring diagrams for all circuits, battery, charging system (alternator), starting system, lighting, gauges, instruments, accessories, fuses, relays, and common diagnostic procedures. Specific attention to Citroën's unique electrical designs of the era.
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Bodywork:
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Information on body panel removal and installation, door mechanisms, glass replacement, interior trim, and basic body repair techniques. May include specifications for jacking points and chassis reinforcement.
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Climate Control:
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Details on heating, ventilation, and air conditioning (HVAC) systems, including component identification, refrigerant types (if applicable), and common repair procedures.
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Procedures Included
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Routine Maintenance:
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Oil changes, filter replacements (oil, air, fuel), spark plug replacement, belt inspection and replacement, fluid level checks and top-ups, lubrication points.
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Troubleshooting:
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Systematic diagnostic procedures for identifying and resolving common and uncommon faults across all vehicle systems. Often includes flowcharts and symptom-based diagnostics.
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Engine Repair:
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Complete engine overhaul procedures, including cylinder head removal and refitting, piston and connecting rod installation, crankshaft and bearing replacement, valve timing, and component torque specifications.
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Transmission Repair:
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Manual and automatic transmission disassembly, inspection, repair, and reassembly. Includes clutch assembly, gear selection linkage, and bearing replacement.
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Suspension Repair:
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Specific procedures for servicing the hydropneumatic suspension, including sphere replacement, hydraulic fluid flushing and refilling, pressure checks, and repair of suspension struts and actuators.
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Brake System Repair:
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Brake pad/shoe replacement, caliper and cylinder overhaul, rotor replacement, bleeding of brake lines, and parking brake adjustment.
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Electrical Diagnostics:
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Detailed troubleshooting for electrical faults, including continuity testing, voltage checks, resistance measurements, and component testing using wiring diagrams.
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Body And Trim Repair:
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Guidance on replacing body panels, door components, window glass, and interior trim pieces.
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Technical Depth
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Depth:
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Factory-level diagnostic and repair procedures, covering everything from basic maintenance to complete mechanical and electrical system overhauls. Includes detailed specifications, tolerances, torque values, and special tool requirements.
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Engine Specifications
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Primary Engine
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Engine Family 1984:
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PSA XU engine family (gasoline) and possibly XUD diesel variants.
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Engine Variants
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Gasoline Engines:
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Common engines for 1984 include the 1.3L (Typ 159A) and 1.6L (Typ 159B) inline-four cylinder gasoline engines. Specific variants might include carbureted or early Bosch LE-Jetronic fuel injection.
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Performance
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Power Output 1 6L:
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Approx. 80-95 hp (depending on specific engine variant and market configuration).
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Torque 1 6L:
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Approx. 120-135 Nm (depending on specific engine variant).
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Fuel System
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Fuel Delivery 1984:
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Typically carbureted (e.g., Solex, Weber) for base models, with potential for early Bosch L-Jetronic or similar electronic fuel injection for higher-spec variants.
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Cooling System
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Cooling Type:
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Liquid-cooled, pressurized system.
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Lubrication System
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Oil Type Specification:
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Typically API SF or SG service classification. Viscosity likely 10W-40 or 15W-40 depending on climate. Consult manual for precise Citroën specification (e.g., Zénith or Total).
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Engine Codes
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Common Engine Codes Gasoline:
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e.g., 159A (1.3L), 159B (1.6L), XU5, XU7 (depending on exact 1984 configuration).
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Maintenance
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Service Intervals
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Oil Change Interval:
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Typically every 5,000 - 10,000 km (3,000 - 6,000 miles) or 6-12 months, whichever comes first. Consult manual for exact recommendation based on driving conditions.
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Air Filter Replacement:
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Every 15,000 - 30,000 km (9,000 - 18,000 miles).
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Spark Plug Replacement:
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Every 20,000 - 40,000 km (12,000 - 24,000 miles), depending on plug type.
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Timing Belt Replacement:
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Critical for XU engines. Typically every 60,000 - 90,000 km (37,000 - 56,000 miles) or 5-6 years. Failure can cause catastrophic engine damage.
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Fluid Specifications
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Hydropneumatic Fluid Type:
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LHM (Liquide Hydraulique Minéral), a mineral-based hydraulic fluid. Citroën's proprietary fluid or compatible aftermarket equivalents are essential. Do NOT use ATF or brake fluid.
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Coolant Specification:
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Ethylene glycol-based antifreeze mixed with distilled water (50/50 ratio). Consult manual for specific Citroën additive requirements.
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Known Issues
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Suspension Spheres:
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Hydropneumatic suspension spheres have a finite lifespan and can lose their charge over time, leading to a harsher ride and increased stress on the system. Regular servicing and replacement are necessary.
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Electrical Gremlins:
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Citroëns of this era can be prone to electrical issues due to aging wiring, connectors, and components. The manual's detailed wiring diagrams are invaluable for diagnosis.
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Rust And Corrosion:
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Like many European cars of the 1980s, rust can be an issue, particularly in the sills, wheel arches, and underbody. Thorough inspection is recommended.
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Hydropneumatic Pump:
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The hydraulic pump can wear over time, leading to reduced system pressure or noise. Proper fluid maintenance is key to pump longevity.
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