Segment:
Family car, notable for its innovative design and hydropneumatic suspension
Competitors:
Competed with other European family hatchbacks of the era, such as the Volkswagen Golf, Ford Escort, and Fiat 128, but distinguished itself with unique engineering
Suspension System:
Citroen's signature hydropneumatic self-levelling suspension offering exceptional ride comfort and handling
Aerodynamics:
Striking, aerodynamic 'breadvan' styling
Design Philosophy:
Emphasis on practicality, comfort, and distinctive French engineering
Coverage Scope:
Full Service Repair and Maintenance
Estimated Page Count:
Comprehensive (Exact count not specified, but described as 'very detailed')
Type:
Full Service Repair Manual
Delivery Method:
Instant Download
Software Requirements:
Adobe PDF Reader & WinRAR
Compatibility:
All Versions of Windows & Mac
Engine:
Detailed repair, overhaul, and diagnostics for all engine variants
Transmission:
Service and repair procedures for manual and Hydropneumatic (automatic-like) transmissions
Suspension:
In-depth coverage of the signature hydropneumatic suspension system, including sphere replacement, pressure regulation, and height control
Brakes:
Complete brake system service, including hydraulics, discs, pads, and parking brake
Electrical:
Extensive wiring diagrams, troubleshooting, and repair procedures for all electrical components and systems
Bodywork:
Repair and refurbishment guidance for body panels, structure, and interior components
Fuel System:
Carburetor or fuel injection system servicing, fuel pump, and lines
Cooling System:
Radiator, fan, coolant lines, and thermostat service
Steering:
Steering rack and linkage maintenance and repair
HVAC:
Heating and ventilation system diagnosis and repair
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, lubrication
Diagnostics:
Comprehensive diagnostic procedures for all systems, including electrical troubleshooting with wiring diagrams
Repair:
Step-by-step repair instructions for major and minor components, including complete engine rebuilds and transmission overhauls
Rebuilding:
Detailed procedures for rebuilding major assemblies like engines, transmissions, and brake systems
Refurbishment:
Guidance on refurbishing various components for restoration purposes
Wiring Diagrams:
Yes, combined with electrical service procedures for ease of diagnostics and repair.
Troubleshooting:
Yes, specific troubleshooting guides and electrical service procedures are included.
Depth:
Professional Technician Level; suitable for DIY mechanics with adequate data provided
Engine Type:
Flat-four (Boxer) engine
Engine Displacement:
Primarily 1299cc (GS) and 1124cc (GS), with GSA variants offering up to 1219cc and later 1299cc
Horsepower Gs:
Approx. 56-60 hp for 1124cc/1299cc GS models
Horsepower Gsa:
Approx. 56-65 hp for GSA models, depending on engine and tuning
Fuel Delivery:
Carburettor (e.g., Weber, Solex) for most models, with potential for early fuel injection in specific markets or later revisions (though less common for 1981 GS/GSA)
Transmission Type Standard:
4-speed Manual (all synchromesh)
Transmission Type Optional:
4-speed Semi-automatic (Citroen-Matic) - referred to as 'Hydropneumatic transmission' for its unique operation with the suspension system
Clutch Type:
Single dry plate clutch (manual)
Body Styles:
5-door hatchback
Wheelbase:
Approx. 2650 mm (104.3 in)
Length:
Approx. 4080 mm (160.6 in)
Width:
Approx. 1610 mm (63.4 in)
Height:
Approx. 1360 mm (53.5 in)
Curb Weight:
Approx. 970-1050 kg (2138-2315 lbs), depending on equipment
Crash Safety:
No standardized global crash test ratings from era; relied on internal safety design principles of the time
Braking System:
Hydraulic front disc brakes, rear drum brakes. Early models had the distinctive 'self-adjusting' rear brake system.
Seat Belts:
Typically front seat belts fitted as standard; rear seat belts optional or market-dependent
Radio System:
Typically an optional factory-fit or dealer-installed radio/cassette player, not integrated advanced infotainment.
ABS:
Anti-lock Braking System (ABS) was not a standard feature on the 1981 GS/GSA. Available on very late or high-spec models as an option in some markets.
Connectivity Features:
None in the modern sense. Limited to basic automotive electrical systems.
Oil Change Interval:
Typically every 5,000 - 7,500 km (3,000 - 4,500 miles) or 6 months, depending on driving conditions. Manual will provide precise intervals.
Hydropneumatic Fluid Change:
Recommended fluid change and filter service for the hydropneumatic system every 30,000-50,000 km (18,000-30,000 miles) or as per manual. Fluid type: LHS 2 or LDS (if applicable to very late models, but likely LHS 2 for 1981).
Engine Oil:
Multi-grade oil, e.g., 10W-40 or 15W-50, API SF/CD or equivalent. Manual will specify exact grade and API rating.
Coolant:
Ethylene glycol-based antifreeze mixture (50/50 with distilled water). Manual will specify type and capacity.
Brake Fluid:
DOT 3 or DOT 4 brake fluid. Manual will specify exact type and capacity.
Suspension Spheres:
Degradation of hydropneumatic suspension spheres can lead to a loss of ride height and comfort. Requires periodic replacement.
Rust:
Common issue for vehicles of this era, particularly in areas prone to road salt. Bodywork and sills are susceptible.
Electrical Gremlins:
As with many French cars of the period, wiring and connectors can be a source of minor electrical faults if not maintained.
Thermostatic Actuator:
The temperature-sensitive thermostatic actuator controlling idle speed on some carburetor models can fail.
Exhaust Manifold Cracks:
The flat-four engine's exhaust manifolds can be prone to cracking due to heat cycling.
Citroen Legacy:
Citroën has a long history of innovative and often unconventional automotive engineering, dating back to André-Gustave Citroën's mass-production techniques and iconic models like the Traction Avant and 2CV.
Gs Gsa Development:
The GS was launched in 1970 as a modern, aerodynamic family car to slot between the utilitarian 2CV and the larger DS. The GSA was a facelifted and updated version introduced in 1980, featuring a revised interior, improved dashboard, and minor styling tweaks.
Production Period:
GS: 1970-1980; GSA: 1980-1986
