🏷️ Basic Information

Make:

Citroën

Model:

GS / GSA

Year:

1975

Chassis Code:

VC

👋 Introduction

Target Audience:

Professional automotive technicians, experienced DIY mechanics, and Citroën GS/GSA enthusiasts undertaking restoration or in-depth maintenance.

Value Proposition:

Offers comprehensive, factory-level repair and maintenance information for a classic and technically unique vehicle, at a fraction of the cost of original physical manuals or dealer services.

Manual Attributes:

Detailed sub-steps, notes/cautions/warnings, numbered instructions, bold figure numbers, detailed illustrations/drawings/photos, enlarged inset views, easy-to-use table of contents, combined troubleshooting and wiring diagrams.

📋 Manual Details

Primary Coverage:

Citroën GS / GSA

Secondary Coverage:

Model variants and engine options for the 1975 model year.

Estimated Page Count:

Likely extensive, given the 'Full Service Repair Manual' designation, typically 500+ pages for comprehensive coverage.

Type:

Full Service Repair Manual

Language:

English

File Format:

PDF

📖 Manual Coverage

Powertrain:

Engine (all variants), transmission (manual and automatic where applicable), drivetrain (front-wheel drive).

Chassis:

Suspension (Hydropneumatic system), steering, brakes (front disc, rear drum), wheels, tires.

Electrical:

Complete wiring diagrams, lighting, ignition system, charging system, starting system, instruments, accessories.

Body And Interior:

Body panels, chassis, interior trim, seats, climate control (if applicable), doors, windows, locks.

Maintenance:

Scheduled maintenance intervals, fluid changes, filter replacements, lubrication.

Diagnostics:

Troubleshooting guides for common problems, diagnostic procedures for all major systems.

Repair:

Detailed step-by-step repair instructions for all components, including engine rebuild, transmission overhaul, suspension repairs, brake system servicing.

Refurbishment:

Procedures for restoring components and the vehicle to original specifications.

Depth:

Comprehensive, covering everything from basic adjustments to complete engine and transmission rebuilds, suitable for professional technicians and advanced DIY mechanics.

📊 Manual Specifications

Quality:

High resolution, designed for clarity of text and illustrations.

Searchability:

Likely searchable PDF text, allowing for quick access to specific information.

Printability:

Full printable, allowing users to print individual sections or the entire manual.

Binding:

N/A (Digital Download)

Paper:

N/A (Digital Download)

Delivery Method:

Instant Download

Software:

Adobe PDF Reader, WinRAR (or similar decompression utility)

Operating Systems:

All versions of Windows and macOS

⚙️ Engine Specifications

Engine Type:

Air-cooled flat-four cylinder boxer engine

Engine Displacement Gs:

1015 cc (for early GS models)

Engine Displacement Gs Later:

1124 cc (introduced later in GS production)

Engine Displacement Gsa:

1220 cc (GSA specific, and also available in later GS models)

Horsepower Gs 1015Cc:

Approx. 50-56 hp (DIN)

Horsepower Gs 1124Cc:

Approx. 56-60 hp (DIN)

Horsepower Gsa 1220Cc:

Approx. 65 hp (DIN)

Fuel Delivery:

Carbureted (single barrel or twin barrel depending on engine variant)

Fuel Type:

Unleaded gasoline (typically 91-95 RON)

🔧 Transmission

Transmission Type:

4-speed manual transaxle

Transmission Type Optional:

3-speed automatic transaxle (less common)

Drive Layout:

Front-wheel drive

Transmission Fluid Type:

Typically a GL-4 rated gear oil (e.g., SAE 75W-90 or 80W-90, specific type detailed in manual)

📐 Dimensions

Length:

Approx. 4.12 meters (162.2 inches)

Width:

Approx. 1.60 meters (63.0 inches)

Height:

Approx. 1.35 meters (53.1 inches)

Curb Weight:

Approx. 900-1000 kg (1984-2205 lbs), depending on model and equipment.

🛡️ Safety Features

Crash Safety:

Lacks modern crash safety structures. Focus on unique body design and active safety through handling.

Handling Safety:

Innovative Hydropneumatic suspension providing constant ride height and adaptive damping, exceptional stability and ride comfort.

Seatbelts:

Lap and shoulder belts (front), lap belts (rear) typically standard for the era.

💡 Technology Features

Audio System:

Basic AM/FM radio, often with a single speaker. Aftermarket upgrades common.

ABS:

Not available on this model. Advanced braking for its time was the front disc/rear drum setup with good pedal feel.

External Ports:

N/A (pre-digital era)

🔧 Maintenance

Oil Change Interval:

Typically every 5,000-7,500 km (3,000-4,500 miles) or annually, depending on usage. Specific recommendation in manual.

Major Service Interval:

Engine tune-ups, ignition timing adjustments, valve clearance checks typically at higher mileage intervals, detailed in manual.

Engine Oil Specification:

For air-cooled engines, oil type and viscosity are critical. Typically SAE 20W-50 or SAE 15W-50 mineral oil. Manual will specify precise grade and API classification.

Hydropneumatic Fluid Specification:

Citroën LHS 2 (LHM - Fluide Hydraulique Citroën) or equivalent. Crucial to use the correct fluid to avoid system damage.

Coolant Specification:

N/A (Air-cooled engine)

Hydropneumatic System Leaks:

Common issues include aging seals, O-rings, and hoses in the suspension and brake systems leading to fluid leaks and pressure loss.

Ignition System Reliability:

Points and condenser ignition systems can require regular maintenance and adjustment. Early models had specific ignition module issues.

Rust And Corrosion:

Like many cars of this era, susceptible to rust, particularly in wheel arches, sills, and floor pans.

Carburetor Tuning:

Requires regular cleaning and adjustment of carburetors for optimal performance and fuel efficiency.

📚 Vehicle History

Citroen Innovation:

Citroën's reputation for avant-garde engineering and design, known for vehicles like the 2CV, DS, and SM.

Gs Introduction:

Introduced in 1970 as a 'mid-size' hatchback, filling the gap between the 2CV and the DS. Featured a distinctive aerodynamic shape and the revolutionary Hydropneumatic suspension.

Gsa Introduction:

Introduced in 1980 as an updated version of the GS, featuring revised styling (particularly the front end with a polyurethane bumper and integrated grille), improved interior, and the larger 1220cc engine as standard.

Production Period:

GS: 1970-1980; GSA: 1980-1986

Manufacturing Location:

France (primarily Rennes-sur-Vilaine plant)

🏆 Awards & Recognition

European Car Of The Year:

Citroën GS was voted European Car of the Year in 1971.