Market Segment:
Executive/Luxury Sedan
Key Competitors:
BMW 5 Series, Mercedes-Benz E-Class, Peugeot 605, Renault 25
Distinctive Technologies:
Hydropneumatic suspension, DIRAVI self-centering steering, unique aerodynamic design.
Engine:
Detailed information on engine disassembly, assembly, diagnosis, and repair for all applicable variants.
Hydropneumatic Suspension:
Comprehensive coverage of the Citroën hydropneumatic system, including spheres, pumps, accumulators, and hydraulic fluid management, as well as height corrector adjustments.
Transmission:
Service and repair procedures for both manual and automatic transmissions, including clutch, gear selection, and fluid maintenance.
Brakes:
In-depth coverage of the hydraulic brake system, including brake fluid, calipers, master cylinder, and power assistance.
Electrical System:
Detailed wiring diagrams, component testing, troubleshooting for lighting, ignition, starting, charging, and accessory systems.
Cooling System:
Information on radiator, fan, thermostat, hoses, and coolant specifications.
Fuel System:
Details on fuel injection systems (if applicable to specific trims), fuel pumps, filters, and carburetor adjustments (for earlier variants if present).
Steering And Suspension:
Coverage of steering rack, power steering system, and suspension components beyond the hydropneumatic aspects.
Body And Chassis:
Repair procedures for body panels, doors, windows, interior trim, and structural components.
Routine Maintenance:
Oil changes, fluid checks and top-ups, filter replacements, spark plug replacement, and general inspection.
Troubleshooting Guides:
Systematic diagnostic procedures for common and complex issues, with symptom-based troubleshooting trees.
Component Removal And Installation:
Step-by-step instructions for removing and installing virtually all vehicle components, from minor parts to major assemblies.
Adjustments And Calibration:
Detailed procedures for adjusting engine timing, idle speed, brake bias, suspension height, and other critical settings.
Special Tool Usage:
Identification and usage instructions for specific tools required for various repair and adjustment procedures.
Depth:
Comprehensive, bumper-to-bumper coverage suitable for both professional mechanics and experienced DIY enthusiasts. Includes detailed explanations, step-by-step instructions, and pictorial diagrams.
Engine Options:
While the specific engine variant isn't detailed, the CX in these years commonly featured petrol engines. The CX 20 typically had a 2.0L engine (XM7) and the CX 25 variants used 2.5L engines (often the Douvrin J engine). Diesel variants (CX 25 D) were also available. Manual will cover all these.
Typical Horsepower Range:
Approx. 100-130 hp for petrol variants, lower for diesel.
Fuel Delivery:
Likely fuel injection for later models (e.g., CIS-Jetronic or Bosch L-Jetronic depending on market and engine) and possibly carbureted options for base models or specific markets. Turbocharged variants (CX Turbo) were also produced.
Body Styles:
Saloon (Berline), Estate (Break), and potentially the CX-Break Coupé (though less common).
Wheelbase:
Approx. 2,950 mm (116.1 in) for Berline.
Curb Weight:
Varies significantly by model and engine, typically around 1,300-1,500 kg (2,866-3,307 lb).
Historical Safety Standards:
While formal Euro NCAP ratings were not prevalent for this era, the CX was designed with passive safety in mind, including a robust chassis and energy-absorbing crumple zones. The hydropneumatic suspension contributes to stable handling.
Active Safety Features:
Power assisted steering, anti-lock braking system (ABS) often optional or standard on higher trims.
Passive Safety Features:
Seat belts, impact-absorbing dashboard, reinforced door beams.
Audio System:
Factory fitted radio/cassette player, with potential for aftermarket upgrades. Speaker configurations varied by trim level.
Steering System:
DIRAVI (Direction à rappel asservi) - a hydraulically assisted steering system that provides variable assistance, becoming firmer at higher speeds. This is a key technological feature.
Early Electronics:
While not 'connected' in the modern sense, the CX featured advanced (for its time) electronic ignition systems, power windows, and central locking on higher trims.
Oil Change Interval:
Typically every 5,000-7,500 miles (8,000-12,000 km) or annually, depending on driving conditions. The manual will provide precise intervals.
Timing Belt Replacement:
Dependent on engine, usually around 30,000-50,000 miles (50,000-80,000 km). Critical to follow manual's recommendation.
Hydropneumatic Fluid:
Citroën LHS 2 (or compatible mineral-based hydraulic fluid). The manual will specify the exact type and capacity.
Engine Oil Specification:
Varies by engine, but typically a 10W-40 or 15W-40 semi-synthetic or mineral oil meeting API SF or SG standards. Manual will be definitive.
Brake Fluid:
DOT 3 or DOT 4. Manual will confirm.
Common Wear Items:
Hydropneumatic spheres (loss of pressure), starter motors, alternator, front suspension spheres, exhaust systems, and certain electrical components.
Maintenance Importance:
Regular maintenance of the hydropneumatic system is crucial for ride comfort and longevity. The manual emphasizes adherence to service schedules for optimal performance and reliability.
Citroen Innovation:
Citroën has a long history of pioneering automotive technology, including front-wheel drive, monocoque construction, and their signature hydropneumatic suspension.
Cx Development:
The CX was introduced in 1974 as the successor to the iconic DS. It retained the DS's groundbreaking hydropneumatic suspension and aerodynamic design but featured a more modern interpretation.
Facelifts And Updates:
The CX underwent several updates and facelifts during its production run, including interior refinements and revisions to the powertrain and suspension components. The models covered (1988-1991) represent the later series of the CX.
Production Years:
1974-1991
