Positioning:
A vital resource for owners and mechanics of the Citroën GS and GSA, known for its innovative design and hydropneumatic suspension.
Comparison:
This manual competes with original factory service manuals, offering a consolidated and easily accessible digital format for a classic and technically complex vehicle.
Unique Selling Points:
Comprehensive coverage, detailed illustrations, professional technician-level information, instant download, and printable format. Emphasis on the unique hydropneumatic system and air-cooled engine.
Systems Covered:
Engine, Fuel System, Ignition System, Cooling System, Exhaust System, Clutch, Transmission (Manual & Automatic), Driveshafts, Suspension (Hydropneumatic), Steering, Brakes (Front & Rear Disc, Parking), Electrical System (Wiring Diagrams, Lighting, Accessories), Bodywork, Interior, Heating & Ventilation, Chassis
Type:
Full Service & Repair Manual
Delivery Method:
Instant Download
Software:
Adobe PDF Reader, WinRAR
Operating Systems:
Windows and Mac
Powertrain:
Comprehensive coverage of the GS/GSA engine, including disassembly, assembly, tuning, and troubleshooting. Specific details on the flat-four air-cooled engine configurations.
Chassis:
Detailed explanation of the unique hydropneumatic suspension system, including component identification, maintenance, repair, and fluid specifications. Covers steering and braking systems extensively.
Electrical:
Includes complete wiring diagrams, troubleshooting guides for electrical faults, and procedures for servicing lighting, ignition, starting, charging, and accessory systems.
Maintenance:
Regular servicing, oil changes, filter replacements, tune-ups, fluid level checks, and lubrication schedules.
Repair:
Step-by-step instructions for engine overhaul, transmission repair, suspension component replacement, brake caliper overhauls, and body panel repairs.
Diagnostics:
Troubleshooting common problems, fault diagnosis for engine, electrical, and mechanical systems, with guidance on interpreting symptoms.
Rebuilds:
Detailed procedures for engine component rebuilds (pistons, rings, bearings, valves) and transmission overhaul.
Body Repair:
Procedures for body panel alignment, dent repair, and rust treatment. Interior trim removal and installation.
Depth:
Professional level, suitable for experienced mechanics and dedicated DIY enthusiasts. Covers from basic adjustments to complete engine and drivetrain rebuilds.
Special Tools:
Identifies and illustrates any specialized tools required for specific repair procedures, particularly for the hydropneumatic system and engine.
Quality:
High-resolution, fully printable. Text is searchable, facilitating quick information retrieval.
Printability:
Full printable across all pages, allowing for physical copies to be made.
Binding:
Digital (PDF) - Printable
Paper Format:
N/A (Digital)
Engine Type:
Flat-four (Boxer), Air-cooled
Displacement:
1124 cc (early GS), 1220 cc (later GS), 1299 cc (GSA)
Engine Code Example:
Type 624 (1124cc), Type 625 (1220cc), Type 663 (1299cc - GSA)
Horsepower Range:
Approximately 50-67 hp (depending on engine variant)
Torque Range:
Approximately 80-95 Nm (depending on engine variant)
Induction:
Carburetor (e.g., Solex, Weber), twin-choke options for higher performance variants
Fuel Type:
Unleaded/Leaded Petrol (depending on era and specific engine tuning)
Type:
4-speed Manual Transaxle
Type:
3-speed Automatic (less common, often referred to as 'Citroënmatic')
Gear Ratios:
Specific ratios for each gear and final drive are detailed within the manual.
Fluid Type:
GL4 Hypoid Gear Oil (specific viscosity, e.g., 80W-90, to be confirmed in manual)
Clutch Type:
Single dry plate, hydraulically actuated
Body Styles:
2-door Hatchback (Berline), 5-door Estate/Wagon (Break)
Length:
Approx. 4,050 mm (Berline)
Height:
Approx. 1,350 mm (Berline)
Wheelbase:
Approx. 2,620 mm
Track Width Front:
Approx. 1,350 mm
Track Width Rear:
Approx. 1,260 mm
Curb Weight:
Approx. 900 - 1000 kg (depending on variant)
Gross Vehicle Weight:
Detailed in manual, varies by model
Crash Test Results:
Limited formal crash test data available from the era, but design focused on occupant protection for its time. Manual addresses safety system checks.
Braking System:
Front disc brakes, rear drum brakes. Self-adjusting feature for brakes detailed.
Seatbelts:
Front seatbelts standard, rear seatbelts often optional or country-specific.
Structural Design:
Unibody construction with integrated safety cage elements.
Oil Change:
Typically every 5,000-7,500 km or annually, with specific recommendations in the manual.
Tune Up:
Recommended at intervals specified in the manual, often involving spark plug, points, and carburetor adjustment.
Engine Oil:
SAE 20W-50 or 10W-40 multigrade oil, meeting API SF or equivalent (check manual for exact specification and capacity).
Hydropneumatic Fluid:
LHM (Citroën's patented mineral-based hydraulic fluid) - CRITICAL to use correct fluid. Capacity approx. 5 liters.
Coolant:
Air-cooled engine, no traditional coolant. Focus on fan belt condition and air intake cleanliness.
Brake Fluid:
DOT 3 or DOT 4 (check manual for specific type and capacity)
Hydropneumatic System:
Leaking spheres, hydraulic fluid degradation, pump wear, height corrector issues. Manual provides detailed troubleshooting.
Engine:
Oil leaks from air-cooled engine seals, ignition timing issues, carburetor adjustment sensitivity.
Electrical:
Corrosion in connectors, wiring harness degradation over time, issues with lighting and auxiliary systems.
Bodywork:
Rust is a common concern for vehicles of this age, particularly around wheel arches, sills, and suspension mounting points. Manual will likely cover rust repair and prevention.
Citroen Innovation:
Citroën's legacy of pioneering automotive technology, including hydropneumatic suspension and aerodynamic design, is evident in the GS/GSA.
Gs To Gsa:
The GS was introduced in 1970. The GSA was an updated version launched in 1980, featuring revised styling (plastic bumpers, grille) and improved interior ergonomics, though this manual focuses on the 1977 GS model year, with GSA elements also likely covered due to shared platforms and powertrain components.
Design Inspiration:
Designed by Robert Opron, featuring aerodynamic and avant-garde styling for its time.
Production Period:
GS: 1970-1980; GSA: 1980-1986
Manufacturing Location:
France
