Target Audience:
Citroën GS/GSA owners, DIY mechanics, automotive repair shops
Manual Superiority:
Comprehensive, professional-grade, manufacturer-provided information, equivalent to or superior to some retail manuals
Value Proposition:
Saves significant repair costs, empowers owners to perform maintenance and repairs
Accessibility:
Instant digital download, no shipping costs or wait times
Coverage Overview:
All Models, Engines, Trim Levels, and Transmission Types for the 1973 Citroën GS/GSA
Estimated Page Count:
Hundreds of pages (specific count not provided, but described as extensive)
Type:
Workshop Repair Service Manual
Powertrain:
Engine Service/Repair, Transmission Service/Repair, Differential/Drive, Axle
Chassis:
Brake System, Suspension, Steering, Cooling System, Chassis/Body
Electrical And Fuel:
Wiring Diagram, Electrical System, Fuel Injection/Fuel System, Emission System, Engine Control System
Comfort And Interior:
Heater/Air Conditioner, Interior
General:
General Maintenance, Periodic Lubrication, Troubleshooting, Restraint System
Repair Procedures:
Detailed step-by-step repair procedures, disassembly, assembly, cleaning, reinstallation
Diagnostic Procedures:
Comprehensive diagnostic information, troubleshooting common issues
Maintenance Procedures:
Routine maintenance tasks, periodic lubrication schedules
Troubleshooting Guides:
Systematic troubleshooting procedures for common faults and issues across all major systems.
Depth:
Professional-level technical detail, same as used by local service/repair shops
Illustrations:
Detailed diagrams, drawings, and photos, enlarged insets for part examination
Warnings And Notes:
Notes, cautions, and warnings to pinpoint critical information
Engine Type:
Horizontally opposed (Boxer) 4-cylinder, air-cooled
Displacement Gs:
1015 cc (G126/G127)
Displacement Gsa:
1124 cc (G140/G141) initially, later 1222 cc
Horsepower Gs 1015Cc:
Approx. 56-60 hp (DIN)
Horsepower Gsa 1124Cc:
Approx. 65-69 hp (DIN)
Torque Gs 1015Cc:
Approx. 74-78 Nm @ 3000 rpm
Fuel Delivery:
Carburetor (e.g., Solex twin-choke)
Fuel Type:
Unleaded gasoline (appropriate octane rating for the era)
Ignition System:
Conventional ignition system with distributor
Length:
GS: Approx. 4090 mm (161 in), GSA: Approx. 4100 mm (161.4 in)
Width:
GS/GSA: Approx. 1620 mm (63.8 in)
Height:
GS: Approx. 1370 mm (53.9 in), GSA: Approx. 1350 mm (53.1 in)
Curb Weight:
GS: Approx. 980 kg (2160 lbs), GSA: Approx. 1000 kg (2205 lbs)
Crash Safety Era:
Designed to mid-1970s safety standards; specific formal ratings (e.g., NHTSA) may not be readily available or comparable to modern standards.
Braking System:
Hydraulically operated disc brakes front, drum brakes rear; self-adjusting
Suspension System:
Citroën Hydropneumatic suspension (self-levelling, adjustable ride height)
Seatbelts:
Likely fitted with front seatbelts as standard or optional depending on market regulations
Chassis Design:
Rigid chassis with crumple zones, contributing to passive safety
Audio System:
Basic AM/FM radio, likely mono, as standard or optional equipment.
Ride Control:
Hydropneumatic suspension provides advanced ride comfort and self-levelling, a significant technological feature for its era.
Connectivity Features:
N/A (No modern connectivity features like Bluetooth or USB are present).
Dashboard Design:
Unique rotating drum speedometer and tachometer in early GS models, updated for GSA.
Oil Change Interval:
Typically every 5,000-7,500 km (3,000-4,500 miles) or annually, detailed in the manual.
Tune Up Interval:
Recommended periodic tune-ups including spark plugs, ignition timing, and carburetor adjustment as per manual.
Engine Oil Grade:
Likely 10W-40 or 20W-50, air-cooled engine specific, consult manual for precise specification.
Hydraulic Fluid:
Citroën LHS 2 (LHM) or equivalent for hydropneumatic suspension and brakes. Manual will specify the exact type.
Transmission Fluid:
Specific gear oil or ATF for automatic, manual transaxle likely requires API GL-4 gear oil. Manual will provide exact specifications.
Common Problems List:
Hydropneumatic suspension sphere wear, potential for corrosion, electrical connection issues, carburetor tuning, exhaust system wear.
Maintenance Importance:
Regular maintenance is crucial for the longevity and performance of this innovative vehicle.
Citroen Innovation:
Citroën is renowned for its engineering innovation, particularly in suspension (Hydropneumatic) and aerodynamics.
Gs Introduction:
The Citroën GS was introduced in 1970, filling the gap between the Ami 8 and the larger DS.
Gsa Facelift:
The GSA was a significant facelift introduced in 1979, featuring a revised interior, improved aerodynamics, and updated engine options.
Production Period:
GS: 1970-1986, GSA: 1979-1986
Manufacturing Location:
Primarily France (Rennes-sur-Vezou)
