Target Audience:
Professional Technicians, DIY Mechanics, Enthusiasts.
Value Proposition:
Comprehensive, detailed, and readily available digital repair information, saving on shipping costs and wait times.
Instruction Style:
Numbered instructions, detailed sub-steps, bold figure numbers for easy illustration matching.
Information Design:
Notes, cautions, and warnings for critical information; enlarged insets for detailed part examination.
Navigation:
Numbered table of contents for fast information retrieval.
Content Quality:
Detailed illustrations, drawings, and photos.
Engine:
Covers all aspects of engine repair, maintenance, and diagnostics.
Transmission:
Details for manual and automatic transmissions.
Drivetrain:
Front-wheel drive components, axles, differentials.
Suspension:
Front and rear suspension systems, including Citroen's signature hydropneumatic elements (if applicable to specific 1991 models).
Steering:
Power steering system, steering rack, and components.
Brakes:
Hydraulic brake system, ABS (if equipped), discs, drums, and lines.
Electrical:
Comprehensive coverage of the vehicle's electrical system, including detailed wiring diagrams.
Cooling System:
Radiator, fan, thermostat, coolant flow.
Fuel System:
Fuel injection systems (MPI/SPI), fuel pump, injectors, lines.
Exhaust System:
Catalytic converter, mufflers, pipes.
HVAC:
Heating, ventilation, and air conditioning systems.
Body And Frame:
Body panels, structural components, interior trim.
Interior:
Seats, dashboard, trim, controls.
Routine Maintenance:
Oil changes, filter replacements, fluid checks, belt inspections.
Diagnostics:
Troubleshooting guides and diagnostic procedures for all major systems.
Repair:
Step-by-step repair instructions for all components and systems.
Rebuilding:
Comprehensive rebuild procedures for engines, transmissions, and other major assemblies.
Refurbishment:
Procedures for restoring and refurbishing various parts of the vehicle.
Electrical Service:
Detailed electrical service procedures and troubleshooting for electrical systems.
Wiring Diagrams:
Inclusion of detailed wiring diagrams for ease of electrical diagnostics and repair.
Depth:
Professional Level (Covers information used by professional technicians and mechanics).
Diy Applicability:
Adequate data for DIY mechanics performing repairs and maintenance.
Engine Options 1991:
Likely includes 1.1L (TU1), 1.4L (TUD3 Diesel, ET3), 1.6L (XU5), 1.8L (XU7), and potentially 2.0L (XU10) variants.
Hp Range:
Approximately 60 hp to 130 hp depending on engine.
Torque Range:
Approximately 90 Nm to 170 Nm depending on engine.
Injection Type:
Monojetronic (SPI), Multi-point fuel injection (MPI), and Diesel Injection.
Fuel Type:
Unleaded Gasoline, Diesel.
Ignition System:
Electronic ignition with distributor or distributorless systems (depending on specific engine).
Transmission Type:
5-speed Manual (common).
Transmission Type:
4-speed Automatic (less common on early models).
Clutch Type:
Single dry plate diaphragm spring clutch.
Manual Transmission Fluid:
Likely specifications for GL-4 or GL-5 gear oil, e.g., SAE 75W-90 or 80W-90 (manual will provide exact spec).
Automatic Transmission Fluid:
Likely specifications for ATF Dexron II or equivalent (manual will provide exact spec).
Euro Ncap Rating:
N/A (Euro NCAP did not exist in its current form in 1991).
Braking Assistance:
Optional ABS on higher trims.
Seatbelts:
Three-point inertia reel seatbelts (front), lap belts (rear).
Airbags:
Not commonly available on 1991 models, driver airbag was a later addition.
Oil Change Interval:
Typically every 10,000-15,000 km or 12 months, depending on driving conditions and oil type (manual will confirm).
Timing Belt Interval:
Recommended replacement typically every 80,000-100,000 km or 5-6 years for petrol engines (manual is critical for this).
Engine Oil Type:
Depends on engine; typically API SF/SG or ACEA A1/A2. Viscosity SAE 10W-40 or 15W-50 common (manual is definitive).
Coolant Type:
Ethylene Glycol based, typically with corrosion inhibitors. Manual will specify type and mixture ratio.
Common Faults:
Rear axle beam wear (leading to camber/toe issues), electrical gremlins, heater matrix leaks, clutch slave cylinder leaks.
Diesel Specific Issues:
Glow plug issues, injection pump timing.
Citroen Design Philosophy:
Known for innovative design, comfort, and unique suspension systems.
Zx Introduction:
Launched in 1991 as a successor to the Citroën Visa and Axel, designed to compete in the compact family car segment.
Zx Platform:
Based on the PSA Peugeot Citroën PSA EC platform, shared with the Peugeot 306.
Production Period:
1991-1998
Manufacturing Locations:
Primarily France (Mulhouse), also produced in other PSA plants and licensed assembly in other countries.
