Target Audience:
Professional technicians and experienced DIY mechanics.
Instruction Format:
Numbered, step-by-step instructions with bold figure numbers for easy illustration matching.
Visual Aids:
Detailed illustrations, drawings, photos, and enlarged insets for component identification.
Critical Information Highlight:
Notes, cautions, and warnings integrated throughout each chapter.
Navigation:
Numbered table of contents for quick information retrieval.
Delivery:
Instant Download
Value Proposition:
Eliminates shipping costs and waiting time associated with physical manuals.
Engine Mechanical:
Comprehensive overhaul and repair procedures for all engine variants.
Fuel System:
Diagnosis, repair, and adjustment of carburettors, fuel pumps, and lines.
Ignition System:
Detailed information on ignition timing, spark plugs, coils, and distributors.
Cooling System:
Radiator, fan, thermostat, and coolant circulation system maintenance and repair.
Exhaust System:
Repair and replacement of exhaust manifolds, pipes, and mufflers.
Transmission Manual:
Service and repair of manual gearboxes, clutch operation, and driveshafts.
Transmission Automatic:
Diagnostic and repair procedures for automatic transmission variants (if applicable).
Suspension System:
Detailed coverage of Citroën's hydropneumatic suspension, including sphere replacement, fluid management, and ride height adjustment.
Steering System:
Power steering diagnosis, repair, and component replacement.
Brake System:
Hydraulic and mechanical brake system repair, including disc and drum brake servicing, fluid changes, and troubleshooting.
Electrical System:
Comprehensive coverage including starter, alternator, battery, lighting, instrumentation, and all auxiliary electrical components.
Wiring Diagrams:
Detailed, integrated wiring diagrams for easy troubleshooting of electrical issues.
Bodywork And Chassis:
Repair, alignment, and adjustment procedures for body panels, doors, and structural components.
Interior Trim:
Information on the removal and installation of interior components, seats, and dashboard.
Heating And Ventilation:
Service and repair of the HVAC system.
Routine Maintenance:
Oil changes, filter replacements, fluid level checks, lubrication.
Diagnostic Procedures:
Systematic troubleshooting guides for identifying and resolving common and complex problems.
Rebuild Procedures:
Complete engine, transmission, and major component rebuild instructions.
Adjustment Procedures:
Carburetor tuning, ignition timing adjustment, suspension ride height adjustment.
Component Replacement:
Step-by-step guides for replacing all major and minor components.
Electrical Troubleshooting:
Detailed methods for diagnosing and repairing electrical faults using wiring diagrams.
Depth Of Information:
Professional-level detail suitable for experienced mechanics and advanced DIY enthusiasts.
Diagnostic Tools:
Procedures likely require standard automotive tools and potentially specialized equipment for hydropneumatic systems.
Engine Type:
Flat-four (Boxer) air-cooled engine
Engine Displacement:
GS: 1015 cc (1.0L), 1222 cc (1.2L); GSA: 1124 cc (1.1L), 1299 cc (1.3L)
Bore X Stroke:
Varies by engine variant (e.g., 1015cc: 74x59 mm; 1222cc: 80.5x59 mm)
Compression Ratio:
Typically around 8.75:1 to 9.0:1 depending on engine and fuel octane.
Horsepower Gs:
GS: ~50-60 hp (SAE Gross); GS X2: ~60-70 hp (SAE Gross)
Horsepower Gsa:
GSA: ~56-70 hp (SAE Gross) depending on engine size.
Torque Gs:
GS: ~75-85 Nm (SAE Gross)
Torque Gsa:
GSA: ~78-95 Nm (SAE Gross) depending on engine size.
Carburetion:
Single or twin-choke Weber or Solex carburetors, depending on model and engine.
Fuel Type:
Unleaded gasoline (recommended minimum octane rating to be confirmed in manual, typically 91-95 RON)
Ignition System Type:
Contact breaker points ignition (most models), with electronic ignition available on later or specific variants.
Oil Change Interval:
Typically every 5,000-10,000 km (3,000-6,000 miles) or annually. Manual will specify exact interval.
Major Service Interval:
Varies by component; engine tune-ups, suspension checks, and fluid changes recommended at significant mileage intervals (e.g., 20,000-40,000 km).
Engine Oil Grade:
Likely SAE 10W-40 or 20W-50 API SF or SG specification. Manual is essential for precise recommendation.
Hydropneumatic Fluid Type:
Citroën LHS 2 (LHM is for later models). Manual will specify the exact type and quantity.
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid. Manual is critical for the correct specification.
Hydropneumatic System Leaks:
Aging seals and flexible hoses in the hydropneumatic suspension can lead to leaks and loss of ride height.
Rust And Corrosion:
Common for vehicles of this era, particularly in areas prone to salt exposure. Check sills, wheel arches, and floor pans.
Carburetor Issues:
Wear and tear on carburetor internals can lead to rough idling, poor fuel economy, and starting difficulties.
Ignition System Wear:
Points and condensers can wear out, requiring regular adjustment and eventual replacement. Distributor components may also require attention.
Electrical Connections:
Corroded or loose electrical connections are a common source of intermittent faults.
Citroen Legacy:
Citroën is renowned for its innovative engineering, particularly in suspension systems and aerodynamic design.
Gs Introduction:
The Citroën GS was introduced in 1970 as a mid-size family car, praised for its advanced suspension, aerodynamic styling, and innovative design.
Gsa Introduction:
The GSA was a facelifted and improved version of the GS, launched in 1980, featuring a revised front-end (including the GSA's signature plastic bumper and integrated headlights), a new dashboard, and minor mechanical updates.
Production Years:
GS: 1970-1980; GSA: 1980-1986
Manufacturing Location:
France
