Target Audience:
Professional Technicians and experienced DIY Mechanics
Value Proposition:
Provides factory-level repair and maintenance information for the Citroën GS/GSA 1985, enabling comprehensive vehicle care.
Comparison To Alternatives:
Offers equivalent or superior detail to physical factory service manuals, with the convenience of instant digital access.
Accessibility:
Instant download provides immediate access to repair information.
Comprehensiveness:
Covers all aspects of vehicle repair and maintenance, including detailed technical data.
Primary Coverage:
Repair, Maintenance, and Service Procedures
Secondary Coverage:
Troubleshooting, Technical Specifications, Component Disassembly/Reassembly
Estimated Page Count:
Approximately 500-700 pages (typical for factory-level service manuals)
Type:
Workshop Manual / Repair Service Manual
Powertrain:
Engine (all variants), Clutch, Gearbox (Manual & possibly AMC Automatic), Drive Axles
Chassis:
Suspension (Hydropneumatic systems for GS/GSA), Steering, Brakes (Hydraulic, including self-adjusting), Wheels & Tires
Electrical:
Ignition System, Starting System, Charging System, Lighting, Instruments, Wiper System, Horn, Fuses, Wiring Diagrams
Body:
Body Exterior Panels, Doors, Hood, Trunk, Interior Trim, Seating, HVAC (heating, ventilation, and air conditioning - basic)
Maintenance:
Routine Checks, Lubrication, Fluid Changes, Filter Replacements, Tune-ups
Repair:
Engine Overhaul, Transmission Rebuild, Brake System Repair, Suspension Component Replacement, Electrical Component Diagnosis and Repair, Bodywork Procedures
Disassembly Assembly:
Detailed step-by-step instructions for component removal and installation
Troubleshooting:
Diagnostic charts, common problems and solutions, fault finding guides
Depth:
Comprehensive: Covers everything from basic adjustments to complete engine rebuilds and advanced electrical diagnostics.
Searchability:
Likely text-searchable, enhancing ease of use
Printability:
Full Printable
Zoom Functionality:
Zoom IN/OUT functionality for detailed viewing of diagrams and text
Digital Binding:
N/A (Digital Download)
Digital Paper Simulation:
Simulates high-quality paper-based manual with clear illustrations and text
Reader Software:
Adobe PDF Reader
Extraction Software:
WinZip or similar archive utility
Operating Systems:
All Versions of Windows & Mac
Engine Type:
Flat-four (Boxer) air-cooled engine
Engine Codes Gs:
GS1015 (1015cc), GS1129 (1129cc)
Engine Codes Gsa:
GSA1129 (1129cc), GSA1299 (1299cc)
Gs 1129Cc Horsepower:
Approx. 56-60 hp (DIN)
Gsa 1299Cc Horsepower:
Approx. 65-71 hp (DIN)
Fuel Delivery:
Carburetor(s) (e.g., Solex, Weber) depending on variant
Fuel Type:
Unleaded Gasoline (95 RON recommended for later models/conversions)
Ignition Type:
Contact breaker points ignition (standard), Electronic ignition (optional/later models)
Cooling Method:
Air-cooled
ECU Presence:
Generally none for basic carburetor models; limited engine management for fuel injection variants if applicable (less common for 1985).
Type:
4-speed or 5-speed Manual Transaxle
Type:
AMC 3-speed Automatic Transaxle (less common)
Drive Layout:
Front-wheel drive
Manual Transmission Fluid:
GL-4 Hypoid Gear Oil (SAE 75W-90 or 80W-90 recommended)
Automatic Transmission Fluid:
Dexron III or equivalent (if equipped with automatic transmission)
Body Styles:
5-door Hatchback, Estate (Break), 2/4-door Coupé (GS Birotor - rare)
Wheelbase:
Approx. 2666 mm (104.9 in)
Length:
Approx. 4120 mm (162.2 in)
Width:
Approx. 1630 mm (64.2 in)
Curb Weight:
Approx. 950-1050 kg (2094-2315 lbs) depending on variant
Crash Test Results:
No standardized crash test data readily available for this era and region; however, design principles of the era focused on passive safety.
Braking System:
Hydraulic disc brakes front, drum brakes rear. Self-adjusting rear brakes.
Suspension Stability:
Hydropneumatic suspension contributes to stable ride and handling.
Seatbelts:
Standard seatbelts (front and rear).
Body Structure:
Monocoque construction with integrated safety cell.
Oil Change:
Typically every 5,000 - 7,500 km (3,000 - 5,000 miles) or annually.
Filter Replacement:
Oil filter: With every oil change. Air filter: Every 10,000-15,000 km (6,000-9,000 miles).
Spark Plug Replacement:
Every 15,000-20,000 km (9,000-12,000 miles) or as per manual.
Engine Oil:
10W-40 or 20W-50 API SF/CD (consult manual for exact grade and capacity, typically around 3.5-4.5 liters)
Coolant:
Air-cooled, no coolant. However, LHS fluid is critical for suspension.
Suspension Fluid:
Citroën LDS fluid (or equivalent spec LH2) is essential for the hydropneumatic system. Proper maintenance and replacement are critical.
Hydropneumatic System:
Leakage in spheres, hoses, or pumps; loss of ride height; stiff suspension. Requires specialized knowledge.
Engine Wear:
Oil consumption, worn valve guides, and potential cylinder bore wear in high-mileage engines.
Electrical Gremlins:
Corrosion in wiring connectors, aging insulation, and failure of switches and relays are common in older vehicles.
Rust:
Common rust points include wheel arches, sills, floor pans, and around window seals.
Citroen Philosophy:
Known for innovation, aerodynamic design, and advanced suspension systems.
Gs Introduction:
Launched in 1970, the GS was lauded for its styling, comfort, and innovative hydropneumatic suspension.
Gsa Introduction:
Introduced in 1980 as a facelifted and improved version of the GS, featuring revised styling (especially the front end) and updated equipment.
Gsa Specific Updates:
Front-end restyling with integrated bumpers, revised dashboard, and often more powerful engines compared to earlier GS models.
Production Period:
GS: 1970–1987; GSA: 1980–1986
Production Location:
France (primarily Rennes-sur-Ille)
