Segment:
Executive/Luxury Sedan and Estate
Key Selling Points:
Revolutionary hydropneumatic suspension, aerodynamic design, spacious interior, comfortable ride, unique styling.
Competitors:
Peugeot 604, Renault 20/30, Mercedes-Benz W123, BMW E12/E28, Ford Granada
Design Philosophy:
Aerodynamic 'Massa-Controllata' design by Robert Opron, inspired by the Citroën SM.
Innovation:
Self-leveling hydropneumatic suspension with variable ride height, dirivatronic power steering, bi-metallic engine technology (early models).
Powertrain:
Engine mechanical, Fuel system (carbureted & injected), Ignition system, Exhaust system, Engine cooling
Transmission:
Manual gearbox, Automatic gearbox (Citroën DS-2, later ZF 3HP22), Clutch, Driveshafts, CV joints
Hydropneumatic Suspension:
Complete system overhaul, Spheres, Actuators, Hydraulic fluid, Height correctors, Pump, Accumulators, Hydraulic lines, Servos
Brakes:
Hydraulic system, Brake discs, Calipers, Brake pads, Brake fluid, Parking brake, ABS (where fitted)
Electrical System:
Wiring diagrams, Lighting, Fuses, Relays, Starting system, Charging system, Instruments, Switches, ECUs (for fuel injection/ABS)
Chassis And Body:
Frame, Body panels, Doors, Hood, Trunk, Interior trim, Seats, Glass, Bumpers
Steering:
Power steering system, Steering rack, Steering column, Linkages
Maintenance:
Scheduled maintenance checks, Oil changes, Filter replacements, Fluid level checks and top-ups, Spark plug replacement, Belt inspections and replacement
Repair:
Engine rebuilds, Transmission overhaul, Suspension component replacement, Brake caliper servicing, Electrical component troubleshooting and replacement, Bodywork repairs, Interior component repair
Diagnostics:
Troubleshooting guides for common faults, Diagnostic procedures for fuel injection and ignition systems, Hydraulic system fault finding
Assembly Disassembly:
Step-by-step instructions for component removal and installation, Detailed exploded views of mechanical assemblies
Depth Of Coverage:
Comprehensive: Covers all aspects of vehicle maintenance, repair, and diagnostics suitable for professional mechanics and skilled DIY enthusiasts.
Visual Aids:
Detailed diagrams, illustrations, and step-by-step instructions for all procedures.
Engine Family:
PSA Douvrin (later XM-derived PRV V6 in some variants)
Engine Variants Early:
1.6L (1614cc) and 1.8L (1777cc) inline-four petrol engines
Engine Variants Later:
2.0L (1981cc) inline-four petrol, 2.2L (2169cc) inline-four petrol, 2.5L (2500cc) inline-four petrol (including Turbo), 2.8L (2849cc) PRV V6 petrol, 1.9L Diesel, 2.5L Diesel Turbo
Typical Horsepower Range:
75 hp (1.6L) to 170 hp (CX Turbo 2)
Typical Torque Range:
120 Nm (1.6L) to 270 Nm (CX Turbo 2)
Fuel Delivery Early:
Weber or Solex carburetors
Fuel Delivery Later:
Bosch L-Jetronic or Motronic electronic fuel injection (EFI), Turbocharged with intercooler
Recommended Fuel:
Unleaded Petrol (Octane rating varies by engine, consult manual for specifics)
Length:
Approx. 4.75m - 5.0m (depending on body style)
Height:
Approx. 1.36m - 1.40m (variable due to suspension)
Curb Weight:
Approx. 1350 kg - 1600 kg (depending on model and equipment)
Gross Vehicle Weight Rating:
Consult specific model for GVWR
Trunk Capacity:
Significant for its class, particularly in estate (Break) versions.
Crash Test Era:
Pre-modern era; original safety ratings not directly comparable to current standards.
Active Features List:
Four-wheel disc brakes, powerful hydraulic system, direct-ratio steering, inherent stability from suspension design.
ABS Availability:
Optional on later models, particularly those with higher engine outputs.
Passive Features List:
Impact-absorbing crumple zones, robust chassis, three-point seatbelts (later models), padded interior surfaces.
Infotainment System Era:
Basic for its time; typically factory-fitted radio/cassette players, often with AM/FM and some with a rudimentary graphic equalizer.
Dashboard Design:
Unique 'satellite' controls for indicators and wipers, futuristic dashboard with integrated instrumentation.
Driver Assistance Features:
Dirivatronic power steering (speed-sensitive assistance), self-leveling suspension, excellent visibility.
Connectivity Features:
None in the modern sense; basic electrical connections for accessories.
Oil Change Interval:
Typically 7,500-10,000 km (4,500-6,000 miles) or annually, whichever comes first. Consult manual for exact interval based on driving conditions.
Spark Plug Replacement:
Varies by plug type; typically 20,000-40,000 km. Consult manual for specifics.
Hydropneumatic Fluid Change:
Recommended every 30,000-60,000 km (20,000-40,000 miles) for optimal system health. Manual will specify.
Hydropneumatic Fluid:
LHM (Liquide Hydraulique Minéral) - Citroën specified mineral-based hydraulic fluid.
Engine Oil Spec:
API SG/SH or higher, viscosity varies by ambient temperature (e.g., 10W-40, 15W-50). Refer to manual for exact specification.
Coolant Spec:
Ethylene glycol based antifreeze, mixed with distilled water (50/50 ratio). Consult manual for specific type and capacity.
Common Issues List:
Hydropneumatic system leaks (especially spheres, hoses, and seals), electrical gremlins (corrosion on connections, failing relays), exhaust manifold cracks (some engines), cooling system leaks, interior trim deterioration, rear suspension trailing arm bearing wear.
Hydropneumatic Maintenance:
Regular inspection of spheres and fluid level is crucial. Overhauling hydraulic components can be complex but rewarding.
Citroen Philosophy:
Long history of automotive innovation, comfort, and unique engineering solutions (e.g., 2CV, DS, SM).
Cx Introduction:
Launched in 1974 to succeed the venerable DS.
Series 1 To Series 2 Transition:
Series 2 facelift in 1986 introduced revised interior, improved aerodynamics, and powertrain updates.
Manufacturing Location:
Rennes-sur-Vilaine, France.
Production Volume:
Over 1.2 million units produced across all variants.
