🏷️ Basic Information Identification Make: Citroën Model: GS / GSA Year: 1972 Codes Chassis Code: VDD 👋 Introduction Market Position Positioning: Essential resource for Citroën GS/GSA owners and mechanics seeking in-depth factory-level repair and maintenance information. Competitive Analysis Comparison: Distinguished from third-party manuals by being an 'Actual Genuine Repair Service Factory Manual'. Key Features Features: Comprehensive coverage, step-by-step instructions, detailed illustrations and diagrams, advanced troubleshooting guide, search functionality within PDF. Value Proposition Cost Saving: Enables DIY servicing to save significant labor costs (estimated $50-$60 per hour). 📋 Manual Details Coverage Areas Countries: Global (primarily Europe) Page Count Estimated Pages: Hundreds (exact count not specified but implied to be extensive) Manual Type Type: Factory Service Repair Manual Authenticity: Genuine Factory Manual (NOT 3rd party) Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Service Repair: Yes Transmission Service Repair: Yes Brake System: Yes Wiring Diagram: Yes Electrical System: Yes Suspension: Yes Periodic Lubrication: Yes Steering: Yes Cooling System: Yes Fuel Injection Fuel System: Yes Emission System: Yes Heater Air Conditioning: Yes Engine Control System: Yes Chassis Body: Yes Restraint System: Yes Interior: Yes Differential Drive: Yes Axle: Yes Procedures Included General Maintenance: Yes Troubleshooting: Yes Repair Procedures: Yes (step-by-step) Rebuild Procedures: Yes Refurbish Restore: Yes Diagnostic Procedures: Yes (advanced) Tuning Procedures: Yes Technical Depth Depth: Comprehensive (factory trained technician level) All Styles Covered Styles: Yes Illustrations Diagrams Illustrations: Contains all necessary illustrations, drawings, and photos. Instructions Instruction Format: Numbered instructions, detailed substeps, notes, cautions, and warnings. Electrical Service Electrical Coverage: Troubleshooting and electrical service procedures combined with detailed wiring diagrams. Chassis Body Body Repair: Coverage includes chassis and body repair procedures. Interior Interior Trim: Detailed guidance for interior components and repairs. 📊 Manual Specifications File Format Format: PDF Print Quality Printability: Printable without restriction Resolution: High Resolution Binding Type Binding: Not Applicable (Digital Download) Paper Type Paper Type: Not Applicable (Digital Download) Requirements Software Requirements: Adobe PDF Reader Operating System Compatibility: All PC based Windows OS and Mac ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled flat-four (boxer) engine Displacement Cc: 1015 cc (for early models, later GS/GSA had larger displacements) Bore X Stroke Mm: Approximately 74 x 59 mm (for 1015cc) Engine Design: Air-cooled, horizontally-opposed (boxer) engine. Performance Horsepower Ps: Approximately 50-55 PS (for early 1015cc models) Torque Nm: Varies by engine displacement and tuning, specific values to be found within the manual. Fuel System Fuel Delivery: Carburetor (e.g., Solex C34-PAITA) for most 1972 models; Fuel Injection introduced later with GSA variants. Cooling System Cooling Method: Air-cooled Engine Control System Ignition System: Conventional distributor-based ignition system for 1972 models. 🔧 Transmission Standard Transmission Type: Four-speed manual transaxle Optional Optional Transmission: Automatic transmission (Hydraulique de Puissance - HP) was available on some later models, but unlikely for the 1972 model as standard. Features Drive Layout: Front-wheel drive (FWD) 📐 Dimensions Exterior Wheelbase Mm: Approximately 2550 mm Length Mm: Approximately 4050 mm Width Mm: Approximately 1610 mm Height Mm: Approximately 1320 mm Weights Kerb Weight Kg: Approximately 970 - 1050 kg (depending on specification) 🛡️ Safety Features Passive Features Seatbelts: Standard front seatbelts, rear seatbelts optional or standard depending on market and trim. Body Structure: Integral body construction with crumple zones. 💡 Technology Features Infotainment Audio System: Basic AM/FM radio or optional radio with cassette player, typically integrated into the dashboard. Driver Assistance Features: Limited driver assistance features by modern standards. Focus on mechanical and hydraulic systems. Chassis Technology Suspension Type: Hydropneumatic self-levelling suspension (front and rear), a hallmark of Citroën design. 🔧 Maintenance Service Intervals Oil Change Interval Km: Typically 5,000-7,500 km, but specific intervals detailed in the manual. Tune Up Interval Km: Varies by component, detailed in manual. Spark plugs, ignition timing, carburetor adjustments are key. Fluid Specifications Engine Oil Type: Specific viscosity grade (e.g., 20W-50 or similar) and API classification to be found in the manual. Historically, mineral oils were common. Coolant Type: Air-cooled, so no coolant is used in the engine. However, the manual will detail fluid for other systems like brakes. Brake Fluid Type: DOT 3 or DOT 4, as specified by Citroën for the hydraulic systems. Transmission Fluid Type: Specific gear oil/transmission fluid grade and capacity detailed in the manual. Hydraulic Fluid Type: Citroën LHS 2 (LHM) or equivalent for the hydropneumatic suspension and brakes, as detailed in the manual. Known Issues Common Issues: Hydropneumatic suspension issues (leaks, pressure loss), carburettor tuning, rust on body panels, electrical gremlins. The manual is crucial for addressing these. General Maintenance Maintenance Focus: Emphasis on the unique hydropneumatic suspension system, air-cooled engine cooling, and Citroën's distinctive electrical architecture. 📚 Vehicle History Brand Heritage Heritage: Citroën, known for innovative design and engineering, particularly in suspension and aerodynamics. Model Evolution Evolution: The GS was launched in 1970 as a mid-size family car. The GSA was an updated version...