🏷️ Basic Information Identification Make: Citroën Model: GS / GSA Year: 1978 👋 Introduction Market Position Manual Type Positioning: Genuine Factory Service Repair Manual, not third-party Key Features Completeness: Complete official full factory service repair manual Ease Of Use: Easy to use for owners, step-by-step guidance Cost Savings: Enables DIY servicing, saving significant labor costs ($50-$60 per hour) Target Audience Primary Audience: Citroën GS/GSA owners seeking to maintain and repair their vehicles 📋 Manual Details Coverage Areas General Maintenance: True Troubleshooting: True Engine Service Repair: True Transmission Service Repair: True Brake System: True Wiring Diagram: True Electrical System: True Suspension: True Periodic Lubrication: True Steering: True Cooling System: True Fuel Injection Fuel System: True Emission System: True Heater Air Conditioning: True Engine Control System: True Chassis Body: True Restraint System: True Interior: True Differential Drive: True Axle: True Page Count Estimated Page Count: Hundreds Manual Type Manual Type: Factory Service Repair Manual Manual Origin: Actual Genuine Repair Service Factory Manuals Language Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered All Aspects Of Repair: True All Styles Covered: True Procedures Included Step By Step Instructions: True Diagnostic Procedures: True Maintenance Procedures: True Repair Procedures: True Rebuild Procedures: True Refurbishment Procedures: True Restoration Procedures: True Technical Depth Technical Depth: Comprehensive, covering factory-trained technician knowledge Illustrations Diagrams Illustrations Included: True Diagrams Included: True Detailed Illustrations: True Drawings Included: True Photos Included: True Enlarged Insets: True Troubleshooting Guide Troubleshooting Guide Advanced: True 📊 Manual Specifications File Format File Format Details: PDF (Portable Document Format) Print Quality Printability: Printable without restriction, single pages or entire manual Resolution: High Resolution Binding Type Binding Type: Digital Download (PDF) Paper Type Paper Type Implication: User printable on desired paper type Software Requirements PDF Reader: Adobe PDF Reader Required Compatibility Operating Systems: Compatible with all PC based Windows and Mac operating systems Delivery Delivery Method: Instant download link provided upon completion of payment Searchability Search Functionality: True ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled flat-four (Boxer) Engine Displacement Gs: 1015 cc (or 1124 cc for later models) Engine Displacement Gsa: 1200 cc (and later 1299 cc for GSA) Fuel System Fuel Delivery Gs: Rochester or Solex downdraft carburetor (single or twin-barrel depending on variant) Fuel Delivery Gsa: Bosch L-Jetronic fuel injection (on some models) Performance Power Output Gs: Approx. 55-60 hp (DIN) Power Output Gsa: Approx. 65-70 hp (DIN) 🔧 Transmission Standard Transmission Type Standard: 4-speed manual transaxle Optional Transmission Type Optional: 3-speed automatic (less common) Features Transmission Layout: Front-wheel drive with engine and transmission mounted transversely ahead of the front axle 📐 Dimensions Exterior Body Styles: 5-door hatchback Weights Curb Weight: Approx. 980-1050 kg 🛡️ Safety Features Passive Features Seat Belts: Standard front seat belts, optional rear seat belts 💡 Technology Features Infotainment Infotainment System: Basic analog radio and speaker system typical for the era. No advanced infotainment. Driver Assistance Driver Assistance Features: None in the modern sense. Focus is on the innovative suspension system for ride comfort. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 5,000 - 7,500 km or 6 months, refer to manual for specific engine type. Ignition Tune Up: As per manual, involving spark plug replacement, ignition timing adjustment. Fluid Specifications Engine Oil Type: Refer to manual for specific viscosity (e.g., 10W-40, 20W-50, depending on climate and engine variant) Coolant Type: Ethylene glycol based anti-freeze/anti-boil mixture, specific type and concentration to be confirmed in manual. Brake Fluid Type: DOT 3 or DOT 4 hydraulic fluid Transmission Fluid Type: Refer to manual for specific gear oil viscosity and type. Known Issues Citroen Hydropneumatic Suspension: Potential for leaks or pressure loss in spheres, hoses, or hydraulic fluid pump; manual provides detailed troubleshooting. Engine Reliability: Air-cooled nature requires attention to cooling and potential for oil leaks due to age and sealing materials. Electrical System: Age-related issues with wiring harness degradation, connectors, and switchgear are common; manual's wiring diagrams are crucial. 📚 Vehicle History Brand Heritage Citroen Innovation Legacy: Known for innovative hydro-pneumatic suspension and aerodynamic designs Model Evolution Gs Introduction: Introduced in 1970 as a successor to the Ami 8, featuring a modern design and advanced features. Gsa Introduction: Introduced in 1979 as a facelifted and improved version of the GS, with revised styling and interior, including a new dashboard and the option of fuel injection. Production Production Period: GS: 1970-1986, GSA: 1979-1986 Designer: Robert Opron 🏆 Awards & Recognition Recognitions European Car Of The Year Nomination: The Citroën GS was nominated for European Car of the Year in 1971, finishing second.