Positioning:
The Citroën CX was a revolutionary executive car, known for its avant-garde design, advanced hydropneumatic suspension, and distinctive 'saucer' aerodynamic shape. It aimed to replace the iconic DS and competed with luxury sedans of its era.
Competitors:
Competed against vehicles like the Mercedes-Benz W123, BMW E23 7 Series, and Volvo 240/740 series.
Design Philosophy:
Aerodynamic efficiency, driver comfort through advanced suspension, unique interior ergonomics, and innovative technology.
Target Audience:
Individuals seeking a comfortable, stylish, and technologically advanced European executive automobile.
Engine:
Complete engine overhaul, diagnosis, tune-up, cooling system, lubrication system, fuel system (carburetor/injection depending on variant), ignition system.
Transmission:
Manual and Automatic transmission overhaul, diagnosis, clutch, driveshafts, differentials.
Chassis Suspension:
Hydropneumatic suspension system (front and rear), steering system, shock absorbers, springs, linkages, wheel alignment.
Brakes:
Brake system diagnosis and repair, hydraulic system, brake discs, pads, calipers, parking brake, power assistance (Citroën's DIRAVI).
Electrical:
Complete electrical system, wiring diagrams, battery, alternator, starter motor, lighting, instrumentation, power windows, central locking (if equipped).
Bodywork:
Body panel repair, doors, hood, trunk, glass, interior trim, rust prevention, painting.
Maintenance:
Scheduled maintenance, oil changes, filter replacements, fluid checks, lubrication, tire rotation.
Repair:
Step-by-step repair procedures for all major systems, including component disassembly, inspection, repair, and reassembly.
Diagnostics:
Troubleshooting guides, symptom analysis, diagnostic flowcharts, identification of common faults.
Specifications:
Detailed technical specifications, torque values, clearances, tolerances, fluid capacities, electrical component data.
Depth:
Factory-level detail, suitable for professional technicians and advanced DIY enthusiasts.
Engine Type:
Inline 4-cylinder, Overhead Valve (OHV) or Overhead Cam (OHC) depending on specific CX 1977 variant (e.g., CX 2000, CX 2200, CX 2400).
Displacement:
Typically 2.0L (1981cc), 2.2L (2175cc), or 2.4L (2377cc) for 1977 models.
Horsepower Range:
Approximately 102 hp to 126 hp depending on engine variant and tuning.
Torque Range:
Approximately 150 Nm to 190 Nm depending on engine variant.
Fuel Delivery:
Solex or Zenith carburetors (e.g., 34 PDSIT, 32/34 TLD) for most 1977 models; early fuel injection variants (e.g., Bosch L-Jetronic) existed but were less common for initial launch years.
Length:
Approx. 4.67 meters (183.9 inches)
Width:
Approx. 1.76 meters (69.3 inches)
Height:
Approx. 1.37 meters (53.9 inches)
Curb Weight:
Approx. 1300-1400 kg (2866-3086 lbs), depending on engine and equipment.
Crash Tests:
While formal crash test ratings as known today were less standardized in 1977, the CX was designed with a robust structure and energy-absorbing zones.
Braking System:
Hydraulic disc brakes all around, with power assistance and the novel DIRAVI (Direction au Rasoir) speed-sensitive power steering system.
Seatbelts:
Standard 3-point front seatbelts; 2-point rear seatbelts common.
Body Structure:
Strong, self-supporting body shell with crumple zones.
Audio System:
Basic AM/FM radio, optional cassette player, often with dashboard-mounted speakers.
Steering:
DIRAVI speed-sensitive power steering for precise control at high speeds and lighter assistance at low speeds.
Suspension Control:
Self-leveling hydropneumatic suspension providing exceptional ride comfort and handling stability.
Features:
Limited by era; primarily focused on mechanical and hydraulic systems rather than electronic connectivity.
Oil Change Interval:
Typically every 5,000 - 7,500 km (3,000 - 5,000 miles) or annually, depending on driving conditions.
Major Service Interval:
As per manual recommendations, often around 30,000 - 50,000 km (20,000 - 30,000 miles) for significant checks and fluid replacements.
Engine Oil:
Refer to manual for specific viscosity (e.g., SAE 20W-50 or 10W-40) and API classification. Often high-detergent oils were recommended.
Hydropneumatic Fluid:
Citroën LHS 2 (or equivalent) fluid is critical for the suspension system.
Brake Fluid:
DOT 3 or DOT 4 hydraulic brake fluid.
Hydropneumatic System:
Leaking spheres, worn seals in the hydraulic system, and issues with the high-pressure pump are common maintenance points.
Diravi System:
Can require calibration and maintenance of its centering mechanism.
Electrical Gremlins:
As with many cars of this era, wiring harness degradation and connector issues can lead to intermittent electrical faults.
Citroen Legacy:
Citroën has a long history of innovation and forward-thinking automotive design, with iconic vehicles like the Traction Avant and the DS preceding the CX.
Cx Development:
Developed under the codename 'Project D', the CX built upon the technological foundations of the DS but with a more modern, aerodynamic design and updated drivetrain options.
Production Years:
1974-1991 (first generation CX1, including 1977 models)
Manufacturing Location:
France (primary)
