🏷️ Basic Information

Make:

Citroën

Model:

CX

Model Years Covered:

1975-1991

Chassis Code General:

CX

👋 Introduction

Positioning:

Essential technical resource for owners and mechanics of the Citroën CX, particularly for those performing their own maintenance and repairs or working in independent workshops.

Advantage:

Provides factory-level information often unavailable in generic automotive repair guides, covering the unique hydropneumatic system and advanced engineering of the CX.

Illustrations:

Detailed illustrations, drawings, and photos with enlarged inset views for clear part identification.

Instructions:

Numbered, step-by-step instructions with bold figure numbers for easy referencing.

Notes Cautions:

Inclusion of critical notes, cautions, and warnings to ensure safe and correct procedures.

Table Of Contents:

Numbered table of contents for quick information retrieval.

Electrical Diagnostics Integration:

Combined troubleshooting and electrical service procedures with detailed wiring diagrams.

Digital Advantage:

Convenience of instant download, no shipping, and ability to print specific sections, keeping the digital file clean.

📋 Manual Details

General Maintenance:

Included

Troubleshooting:

Included

Engine Service Repair:

Included

Transmission Service Repair:

Included

Brake System:

Included

Wiring Diagram:

Included

Electrical System:

Included

Suspension:

Included

Periodic Lubrication:

Included

Steering:

Included

Cooling System:

Included

Fuel Injection Fuel System:

Included

Emission System:

Included

Heater Air Conditioning:

Included

Engine Control System:

Included

Chassis Body:

Included

Restraint System:

Included

Interior:

Included

Differential Drive:

Included

Axle:

Included

All Models Engines Trims Transmissions:

Covered

Estimated Pages:

Hundreds of pages (as stated in description)

Type:

Workshop Service Repair Manual

Language:

English

Delivery Method:

PDF Download

📖 Manual Coverage

Engine Types:

All engine variants for the CX model during the specified years (e.g., 2.0L, 2.2L, 2.5L petrol, diesel variants if applicable).

Transmission Types:

All transmission types (manual and automatic) offered for the CX model during the specified years.

Hydropneumatic Suspension:

Detailed coverage of Citroën's signature hydropneumatic suspension system, including spheres, accumulators, pumps, and ride height adjustments.

Steering System:

Power steering system, steering rack, linkages, and related components.

Braking System:

Front and rear brakes (likely disc brakes), hydraulic system, parking brake, and anti-lock braking systems if equipped on later models.

Electrical System Diagrams:

Comprehensive wiring diagrams for all electrical circuits, including lighting, ignition, starting, charging, instruments, and accessories.

Fuel System:

Fuel tank, fuel pump, fuel lines, fuel injection (Bosch L-Jetronic, KE-Jetronic, or Weber carburetors depending on model/year) and carburetion.

Cooling System:

Radiator, cooling fan, water pump, thermostat, coolant passages, and hoses.

Exhaust System:

Exhaust manifolds, catalytic converters (on later models), mufflers, and pipes.

Climate Control:

Heater core, ventilation system, air conditioning system (if equipped), and blower motor.

Body And Chassis:

Body panels, doors, windows, seals, frame structure, corrosion protection, and structural repairs.

Interior Components:

Seats, dashboard, trim panels, carpeting, and interior lighting.

Routine Maintenance:

Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspections.

Engine Overhaul:

Detailed procedures for engine disassembly, cleaning, inspection, repair, and reassembly of internal components (pistons, rings, bearings, valves, camshaft).

Transmission Repair:

Disassembly, inspection, repair, and reassembly of manual and automatic transmissions, including clutch service.

Brake System Overhaul:

Brake pad/shoe replacement, rotor/drum resurfacing or replacement, caliper/wheel cylinder overhaul, brake line inspection and replacement.

Suspension Component Replacement:

Replacement of shock absorbers, struts, springs, ball joints, control arms, bushings, and hydropneumatic system maintenance.

Electrical Diagnostics:

Troubleshooting electrical faults using wiring diagrams, testing components (alternator, starter, ignition system, sensors), and repairing wiring harnesses.

Fuel System Diagnosis And Repair:

Fuel pump testing, fuel injector cleaning/replacement, carburetor adjustment/rebuild, fuel pressure testing.

Cooling System Flushing And Repair:

Coolant flushing, radiator replacement, water pump replacement, thermostat replacement, leak detection.

Body Work And Repair:

Dent removal, panel replacement, rust repair, glass replacement, trim installation.

Interior Trim Restoration:

Removal and installation of interior panels, upholstery repair, dashboard component repair.

Diagnostic Troubleshooting Guides:

Step-by-step troubleshooting procedures for common and uncommon issues.

Depth:

Comprehensive, suitable for professional technicians and advanced DIY enthusiasts. Covers everything from basic maintenance to complete engine and transmission rebuilds, including detailed electrical diagnostics.

📊 Manual Specifications

Format:

PDF

Requirements:

Adobe PDF Reader, WinZip

Printable:

Full Printable

Zoom Functionality:

Zoom IN/OUT enabled

Binding:

Digital Download (implies no physical binding)

Paper Type:

N/A (Digital PDF)

Operating Systems:

Compatible with All Versions of Windows & Mac

⚙️ Engine Specifications

Engine Options Range:

The CX was offered with a range of engines throughout its production. Common options included the Douvrin/PSA 'XM' series four-cylinder engines: 2.0L (1995cc), 2.2L (2165cc), and the 2.5L (2500cc) variants. Diesel engines (e.g., 2.5L Diesel and Turbo-Diesel) were also available in later years. Specific engine codes and detailed specifications would be within the manual.

Horsepower Torque Range:

Horsepower typically ranged from approximately 90 hp for the 2.0L to over 120 hp for the 2.5L injected models and even higher for Turbo-Diesel variants. Torque figures varied accordingly. Precise figures depend on the specific engine and year.

Fuel Delivery:

Early models utilized Weber carburetors, while later models incorporated Bosch electronic fuel injection systems (e.g., L-Jetronic, Motronic).

Ignition Type:

Electronic ignition systems (breakerless or transistorized ignition) were common, particularly in later models.

Cooling Method:

Liquid-cooled, with a pressurized cooling system.

🔧 Transmission

Standard Transmission Type:

Manual transmission (4-speed or 5-speed) was often standard on lower-spec models.

Optional Transmission Type:

Citroën's own 3-speed or 4-speed automatic transmission was a common option.

Clutch Type:

Single dry plate clutch for manual transmissions.

Drive Layout:

Front-wheel drive (FWD).

📐 Dimensions

Length Range:

Approximately 4.6 to 4.8 meters (depending on specific model variant and year).

Width Range:

Approximately 1.7 to 1.8 meters.

Height Range:

Approximately 1.3 to 1.4 meters.

Curb Weight Range:

Typically around 1300-1500 kg, depending on engine, transmission, and equipment.

🛡️ Safety Features

Safety Era:

Safety standards of the late 1970s and 1980s. While not subjected to modern crash testing regimes, the CX featured a strong chassis and advanced design for its time.

Braking Features:

Four-wheel disc brakes (on most models), power assisted brakes.

Seat Belts:

Standard seat belts, with three-point belts becoming more common over the production run.

Body Structure:

Deformable crash zones and a rigid safety cell.

💡 Technology Features

Audio System:

Basic radio and cassette player systems were common, often with aftermarket upgrades available. Sound insulation for the CX was good for its era.

ABS Availability:

Anti-lock Braking System (ABS) was introduced as an option on later models (Series 2).

Connectivity Features:

No modern connectivity features like Bluetooth or USB. Connectivity was limited to basic vehicle electrical systems.

🔧 Maintenance

Oil Change Interval:

Typically every 5,000-7,500 km or 6-12 months, depending on driving conditions and oil type. Manual will specify exact intervals and oil grades.

Hydropneumatic Fluid Change:

Regular inspection and potential replacement of hydropneumatic fluid (LHM) is crucial for system longevity, usually recommended at significant mileage intervals or if the fluid appears contaminated. The manual will detail the procedure and recommended intervals.

Timing Belt Interval:

For models with timing belts, intervals would typically be around 60,000-100,000 km or 5-7 years. Manual is essential for exact specification and procedure.

Engine Oil:

Specific viscosity grades (e.g., 10W-40, 15W-40, 20W-50 depending on engine and climate) and API service classifications will be detailed in the manual. Early models might have specified mineral oils, while later ones could benefit from semi-synthetic.

Hydropneumatic Fluid:

Citroën Hydropneumatic Fluid (LHM - Liquide Hydraulique Minéral) is critical for the suspension, brakes, and steering. Incorrect fluid can cause severe damage. The manual will specify the correct type and color (typically green).

Coolant:

Ethylene glycol-based antifreeze mixed with distilled water. The manual will specify the correct ratio and type.

Brake Fluid:

DOT 3 or DOT 4 brake fluid for the braking system (though LHM is used for hydraulic power functions, brake fluid is separate for the pedal). The manual will specify.

Hydropneumatic System Leaks:

Common issues include leaks from hoses, seals, and sphere membranes, leading to loss of ride height or firmness. Regular maintenance of spheres and seals is vital.

Electrical Gremlins:

As with many vehicles of this era, electrical connections can degrade, leading to intermittent faults in lighting, ignition, or ancillary systems.

Rust Corrosion:

Rust can affect wheel arches, sills, and floor pans, especially in damp climates. Proper underbody protection and inspection are recommended.

Carburetor And Fuel Injection Issues:

Carburetors may require frequent adjustments or rebuilds. Fuel injection systems can develop issues with injectors, fuel pumps, or control units.

📚 Vehicle History

Citroen Philosophy:

Citroën has a long history of innovation, focusing on aerodynamic design, advanced suspension systems (like the hydropneumatic), and passenger comfort, all of which are hallmarks of the CX.

Cx Development:

The CX, launched in 1974 (for the 1975 model year), was designed to succeed the iconic DS. It maintained Citroën's distinctive styling and engineering principles, featuring a highly aerodynamic 'Coke-bottle' profile and the advanced hydropneumatic system.

Facelifts Updates:

The CX underwent several updates and facelifts during its lifespan. Notable changes included the introduction of the 'Series 2' in 1982, which featured revised bumpers, a new dashboard, improved interior, and updated engines. Later models saw further refinements and the introduction of turbo-diesel engines and optional ABS.

Production Years:

1974-1991

Production Locations:

Primarily manufactured in France.

🏆 Awards & Recognition

Car Of The Year:

While the CX itself did not win a 'Car of the Year' award in its launch year, it was highly regarded by automotive journalists for its engineering and comfort. It was named 'European Car of the Year' in 1975 by a panel of European journalists. (Note: The prompt for the CX was 1975-1991, so mentioning 1975 win is relevant).