🏷️ Basic Information

Make:

Citroën

Model:

GS / GSA

Year:

1972

Chassis Code:

GS (pre-GSA)

👋 Introduction

Target Audience:

Professional technicians and experienced DIY enthusiasts seeking to maintain and repair their Citroën GS/GSA.

Manual Purpose:

To provide authoritative guidance on repair, maintenance, and troubleshooting for the Citroën GS/GSA.

Content Comparison:

Covers topics typically found in factory service manuals and owner's manuals, offering a holistic approach to vehicle care.

Digital Advantage:

Instant download availability allows for immediate access to repair information, bridging the gap between paper and digital.

📋 Manual Details

Model Coverage:

Citroën GS and GSA models

Year Coverage:

Primarily focused on the 1972 model year, with general applicability to the early GS/GSA production run.

Estimated Page Count:

Varies by specific edition, but generally comprehensive for a factory service manual, often exceeding 500 pages.

Manual Type:

Repair Service Manual / Workshop Manual

Language:

English

File Format:

PDF

Delivery Method:

Instant Download

Software Requirements:

Adobe PDF Reader, WinZip (or similar unzipping utility)

Operating System Compatibility:

All Versions of Windows & Mac

📖 Manual Coverage

Engine Systems:

Engine mechanical (assembly, disassembly, timing, lubrication, cooling), fuel system (carburetion, fuel pump, lines), ignition system, exhaust system.

Transmission Drivetrain:

Manual transmission (operation, overhaul), clutch, driveshafts, wheel bearings.

Suspension Steering:

Hydropneumatic suspension (design, maintenance, component replacement, fluid service), steering system (rack and pinion, column, linkages).

Brakes:

Brake system (hydraulic circuits, master cylinder, calipers, drums, parking brake, fluid service, bleeding procedures).

Electrical:

12V electrical system, battery, alternator, starter motor, lighting (headlights, taillights, interior), ignition switch, wiring diagrams, dashboard instruments, horn, wipers, washers.

Bodywork Chassis:

Body structure, doors, windows, locks, interior trim, seats, bumpers, paint and finish.

Heating Ventilation Air Conditioning:

Heater system, ventilation controls.

Maintenance Procedures:

Scheduled maintenance tasks, fluid changes (oil, coolant, brake fluid), filter replacements, lubrication points, spark plug checks, tire rotation.

Repair Procedures:

Step-by-step instructions for component removal, disassembly, cleaning, inspection, repair, reassembly, and installation for all covered systems.

Troubleshooting:

Diagnostic guidance for common problems, symptom-based troubleshooting charts, identifying causes of malfunctions.

Disassembly Assembly:

Detailed instructions for taking apart and putting back together major vehicle components and systems.

Depth Of Coverage:

Comprehensive factory-level detail suitable for professional technicians, with accessible explanations for DIY mechanics possessing basic mechanical and electrical knowledge.

📊 Manual Specifications

File Type:

PDF

Printability:

Full Printable

Zoom Functionality:

YES (Zoom IN/OUT)

Binding Type:

Digital (Downloadable PDF)

Paper Type:

Not Applicable (Digital Format)

⚙️ Engine Specifications

Engine Type:

Air-cooled, flat-four (boxer) engine.

Engine Displacement Early:

1015 cc (for 1972 models).

Engine Displacement Later:

1124 cc and 1220 cc (introduced later in GS production, and standard in GSA).

Horsepower 1015Cc:

Approx. 56-60 hp (DIN).

Carburetor Type:

Zenith or Solex downdraft carburetor(s).

Cooling Method:

Forced air cooling.

🔧 Transmission

Transmission Type:

4-speed manual transaxle.

Automatic Transmission Availability:

Automatic transmission (Citroën's own system, often referred to as 'semi-automatic' due to torque converter and manual shifting) became available on later GS models and was an option on GSA, but not typically for the 1972 model year.

Drivetrain Layout:

Front-wheel drive.

📐 Dimensions

Wheelbase Early Gs:

Approx. 2550 mm (100.4 inches).

Overall Length Early Gs:

Approx. 4100 mm (161.4 inches).

Overall Width Early Gs:

Approx. 1630 mm (64.2 inches).

Overall Height Early Gs:

Approx. 1270 mm (50 inches).

Curb Weight:

Approx. 970 - 1050 kg (2138 - 2315 lbs), depending on specification.

🛡️ Safety Features

Braking System Type:

Hydraulically operated disc brakes front, drum brakes rear (typical for early models). Later models and specific trims might have rear discs.

Parking Brake System:

Mechanical handbrake acting on rear wheels.

Body Construction:

Unibody construction with significant use of anti-corrosion treatments and safety crumple zones integrated into the design.

💡 Technology Features

Radio System:

Optional factory radio and speaker systems, typically AM/FM.

Aerodynamic Design:

Highly aerodynamic, 'fuselage' design contributing to fuel efficiency and stability.

🔧 Maintenance

Engine Oil Change:

Typically every 5,000 km (approx. 3,000 miles) or annually, whichever comes first (refer to manual for exact interval based on driving conditions).

Suspension Fluid Check:

Regular checks for leaks and fluid levels in the hydropneumatic system are critical, often recommended at every service.

Engine Oil Type Early:

API SE/SF, SAE 20W-50 or 20W-40 (refer to manual for specific viscosity based on climate).

Suspension Fluid Type:

LHM (Liquide Hydraulique Minéral) – specific Citroën green mineral hydraulic fluid.

Brake Fluid Type:

DOT 3 or DOT 4 brake fluid (ensure compatibility with system seals).

Hydropneumatic Suspension Issues:

Potential for suspension height control issues, leaks in spheres or lines, and pump problems if not properly maintained. Requires specialized knowledge.

Rust And Corrosion:

Like many cars of this era, susceptible to rust, particularly in wheel arches, sills, and door bottoms. The manual will detail rust prevention and repair.

Electrical System Reliability:

Older wiring can become brittle, leading to intermittent faults. Wiring diagrams in the manual are essential for diagnosis.

Engine Cooling Efficiency:

Air-cooled engines can be susceptible to overheating in extreme conditions or if the cooling fins are blocked with debris. Proper cleaning and airflow are crucial.

📚 Vehicle History

Citroen Innovation:

Citroën's long history of automotive innovation, particularly in suspension and aerodynamic design.

Gs Introduction:

The Citroën GS was launched in 1970 as a compact family car, designed to slot between the Dyane/Ami 8 and the larger DS.

Gsa Introduction:

The GSA was a significant facelift and update of the GS, introduced in 1980, featuring revised styling, interior, and the addition of a hatchback tailgate.

Production Period Gs:

1970-1986.

Designer:

Designed by Robert Opron, also known for the DS and SM.

🏆 Awards & Recognition

Car Of The Year:

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