🏷️ Basic Information

Make:

Citroën

Model:

GS / GSA

Year:

1974

Manual Product Name:

Citroen GS GSA 1974 Repair Service Manual

Manual Keywords:

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👋 Introduction

Positioning:

A comprehensive resource for owners and technicians of the iconic Citroën GS/GSA of the 1974 model year, bridging the gap between owner's manuals and full factory service data.

Advantage:

Provides detailed, step-by-step instructions and technical data crucial for maintaining and repairing the unique Hydropneumatic system and other complex features of the GS/GSA, often unavailable in generic repair guides.

Feature 1:

Instant downloadability for immediate access to repair information.

Feature 2:

Suitable for both professional mechanics and informed DIY enthusiasts.

Feature 3:

Covers a wide range of systems, ensuring thorough repair and maintenance capabilities.

Feature 4:

Digital format offers printability and zoom capabilities for ease of use.

📋 Manual Details

Overall Coverage:

Comprehensive repair and maintenance for the Citroën GS/GSA 1974.

Target Audience:

Professional technicians and experienced DIY mechanics.

Estimated Page Count:

N/A (Digital PDF - variable based on software)

Type:

Repair Service Manual / Workshop Manual

Language:

English

File Format:

PDF

📖 Manual Coverage

Powertrain:

Engine, transmission, clutch, drivetrain, cooling system, fuel system, exhaust system.

Chassis:

Suspension (Hydropneumatic), steering, brakes (including Hydropneumatic system control), wheels, tires.

Electrical:

Ignition system, starting system, charging system, lighting, instrumentation, ancillary electrical components, wiring diagrams.

Body:

Body construction, exterior panels, doors, windows, interior trim, ventilation, HVAC (where applicable).

Maintenance:

Scheduled maintenance, fluid changes, filter replacements, lubrication.

Repair:

Step-by-step disassembly, repair, and reassembly procedures for all major vehicle components.

Troubleshooting:

Diagnostic procedures and solutions for common and uncommon faults.

Specifications:

Detailed technical specifications, torque values, clearances, and tolerances.

Illustrations:

Illustrations, diagrams, and photographs to aid in repair and identification.

Depth:

Covers fundamental repair and maintenance up to advanced diagnostic and repair procedures typically found in factory service manuals.

📊 Manual Specifications

Digital Format:

PDF (Portable Document Format)

Printability:

Full Printable

Zoom Capability:

Yes (Zoom IN/OUT)

Digital Binding:

N/A (Digital Download)

Digital Paper Type:

N/A (Digital Download)

Delivery Method:

Instant Download

Software Requirements:

Adobe PDF Reader & WinZip

Operating System Compatibility:

All Versions of Windows & Mac

⚙️ Engine Specifications

Engine Type:

Air-cooled, flat-four boxer engine

Displacement:

1.2 liters (1220 cc) for the base GS, with larger displacements available for later variants or specific markets. This manual is likely to cover the 1974 model's engine which would typically be the 1220cc.

Bore X Stroke:

74 mm x 71 mm (for 1220 cc)

Horsepower:

Approximately 56-60 hp (DIN) for the 1220cc engine, depending on specific tuning and market regulations.

Torque:

Approximately 95-100 Nm (DIN) for the 1220cc engine.

Carburetion:

Typically single or twin Solex or Weber downdraft carburetors.

Fuel Type:

Unleaded gasoline (historical context, may require lead substitute or compatible fuels depending on current availability and engine modifications).

🔧 Transmission

Transmission Type:

Four-speed manual transaxle.

Automatic Transmission:

An automatic transmission (Citroën's 'L-Matic') was available as an option on some GS models, though less common. This manual likely focuses on the manual transmission.

Clutch Type:

Single dry plate diaphragm spring clutch.

Transaxle Layout:

Integrated engine and gearbox unit, mounted transversely.

📐 Dimensions

Wheelbase:

2650 mm (104.3 inches)

Length:

4120 mm (162.2 inches)

Width:

1630 mm (64.2 inches)

Height:

1345 mm (53.0 inches)

Curb Weight:

Approximately 970-1000 kg (2138-2205 lbs), depending on equipment.

Gross Vehicle Weight:

N/A (Specific value not universally documented for this manual's scope).

🛡️ Safety Features

Crash Test Data:

Crash test data from the era is limited by modern standards. The GS was designed with a focus on aerodynamic efficiency and passenger comfort, with safety features evolving throughout its production.

Braking System:

Inboard disc brakes at the front, drum brakes at the rear. Controlled by the Hydropneumatic system for assisted braking.

Seat Belts:

Front seat belts were standard, rear seat belts often optional or fitted later.

Body Structure:

Integral body structure with crumple zones designed for the period.

💡 Technology Features

Audio System:

Factory fitted radios were basic AM/FM units, often with a single speaker. The manual will cover installation and troubleshooting of these systems.

Parking Assistance:

N/A (No electronic parking aids).

Vehicle To Device:

N/A (No modern connectivity features).

Lighting System:

Standard halogen headlights, side lights, indicators, brake lights, and rear lights. Wiring diagrams are a key feature of this manual.

🔧 Maintenance

Oil Change:

Recommended every 5,000 - 7,500 km (3,000 - 4,500 miles) or annually. Specific interval detailed in the manual.

Tune Up:

Recommended every 10,000 - 15,000 km (6,000 - 9,000 miles), including spark plug replacement, ignition timing adjustment, and carburetor tuning.

Engine Oil:

Typically SAE 20W-50 or 10W-40 for air-cooled engines. Specific API rating and capacity will be detailed in the manual.

Hydropneumatic Fluid:

Citroën LDS fluid (or equivalent specified in the manual). Critical for suspension, brakes, and clutch actuation. Requires specific pressure checks and topping up.

Gearbox Oil:

GL-4 or GL-5 hypoid gear oil, viscosity dependent on ambient temperature. Capacity usually around 2.0-2.5 liters.

Hydropneumatic System:

Leakage from spheres, pressure regulator issues, ride height adjustment problems, component wear (pump, accumulator).

Engine:

Valve stem seals, cooling fins needing cleaning, carburetor synchronization issues, occasional oil leaks.

Electrical:

Corrosion on connectors, aging wiring harnesses, issues with the dashboard instruments (especially illumination and tachometer).

Bodywork:

Rust in common areas such as wheel arches, sills, and door bottoms.

📚 Vehicle History

Citroen Legacy:

Citroën is renowned for its innovative engineering and distinctive designs, particularly its pioneering work with Hydropneumatic suspension, which the GS/GSA exemplifies.

Gs Introduction:

The Citroën GS was introduced in 1970, designed to slot between the Ami 8 and the DS. It was celebrated for its advanced aerodynamics, innovative suspension, and comfortable ride.

Gsa Introduction:

The GSA was an updated version of the GS, introduced in 1980, featuring styling revisions and a new dashboard design. This manual specifically covers the 1974 GS model.

Production Period:

1970-1986 (GS/GSA combined). The 1974 model falls within the initial, highly acclaimed 'GS' phase.

Manufacturing Location:

Primarily France, with some production also occurring in other European countries.

🏆 Awards & Recognition

European Car Of The Year:

The Citroën GS was awarded European Car of the Year in 1971, highlighting its innovative design and engineering.

Critical Acclaim:

Praised for its exceptional ride quality, aerodynamic styling, and advanced technical features for its time.