Vehicle Segment:
Compact family car (supermini/small family car class)
Target Audience:
Affordable and practical transportation, appealing to families and individuals seeking a reliable daily driver.
Key Competitors:
Ford Escort/Focus, Volkswagen Golf, Opel/Vauxhall Astra, Renault Mégane, Fiat Bravo/Brava, Honda Civic.
Competitive Advantages:
Known for its comfortable ride, stylish design (especially the PH1 generation), good handling, and wide range of engine options. Often offered good value for money.
Design Philosophy:
Emphasized driver comfort, sophisticated interior packaging, and a blend of performance and economy.
Platform Sharing:
Shared underpinnings and some components with other PSA Group vehicles, facilitating parts availability and manufacturing efficiency.
Engine Systems:
Engine mechanical (including cylinder head, block, crankshaft, pistons, connecting rods), fuel injection and delivery (petrol and diesel), ignition system, cooling system, lubrication system, exhaust system, emissions control.
Transmission Systems:
Manual transmission (gearbox internals, clutch operation, linkage), automatic transmission (torque converter, planetary gearsets, hydraulic controls), final drive and differentials.
Suspension And Steering:
Front and rear suspension (struts, shock absorbers, springs, control arms, anti-roll bars), power steering system, steering rack, column, wheel alignment specifications.
Braking Systems:
Hydraulic brake system (master cylinder, brake lines, calipers, wheel cylinders), ABS system (components, operation, troubleshooting), parking brake.
Electrical Systems:
Wiring diagrams, battery, starter motor, alternator, lighting (headlights, taillights, interior), fuses and relays, instrument panel, switches, power windows, central locking, basic ECU functions.
Body And Chassis:
Body panel removal and installation, door mechanisms, interior trim, glass replacement, corrosion prevention, jacking points, structural components.
Heating Ventilation And Air Conditioning:
HVAC system operation, components (compressor, condenser, evaporator), refrigerant handling, dashboard vents, cabin filter replacement.
Maintenance Procedures:
Oil changes, filter replacements, spark plug replacement, coolant flushes, brake fluid changes, air filter replacement, belt inspections and replacement.
Repair Procedures:
Engine overhaul, transmission rebuild, clutch replacement, suspension component replacement, brake caliper overhaul, steering rack replacement, alternator/starter replacement, body panel repair.
Troubleshooting:
Diagnostic fault finding for engine, transmission, braking, electrical, and HVAC systems; common problems and their solutions.
Rebuilding And Refurbishment:
Detailed steps for dismantling, inspecting, and reassembling major mechanical components.
Restoration Guidance:
Implied through comprehensive repair and refurbishment sections, providing a basis for restoration projects.
Depth Of Information:
Comprehensive, covering basic maintenance to complex component rebuilds and diagnostics.
Diagnostic Capabilities:
Includes diagnostic procedures and potential troubleshooting steps, likely referencing specific fault codes or symptom-based diagnostics.
Engine Families:
Primarily PSA XU and EW (petrol) and XUD (diesel) engines.
Petrol Engine Variants:
1.1L (TU series, less common in 306), 1.4L (XU5JP, XU5M), 1.6L (XU7JP, XU7M), 1.8L (XU7PB, XU7), 2.0L (XU10J2, XU10J4 - including GTi-6/Rallye variants). Later models may feature EW series engines (1.6, 2.0). Specific codes like LFX (1.8 16v) and RFY (2.0 GTi-6) are important.
Diesel Engine Variants:
1.9L naturally aspirated (XUD7TE), 1.9L turbodiesel (XUD7TE, XUD9TE), 2.0L HDi turbodiesel (DW10TD). Direct injection (Di) and indirect injection (TDi) variants exist.
Horsepower Range:
Approximately 60 hp (1.1L) to 167 hp (2.0L GTi-6/Rallye).
Torque Range:
Varies significantly by engine, e.g., 1.4L petrol around 110-115 Nm, 2.0L HDi around 205 Nm.
Fuel Delivery Petrol:
Electronic Fuel Injection (MPI - Multi-Point Injection).
Fuel Delivery Diesel:
Rotary or inline injection pumps for older XUD diesels; Common Rail Injection (HDI).
Ignition System:
Distributorless Ignition System (DIS) or traditional distributor with coil pack depending on year and engine.
Oil Change Interval:
Typically 6,000 - 10,000 miles (10,000 - 16,000 km) or 12 months, depending on engine type and oil used. Refer to manual for specific engine/oil recommendation.
Timing Belt Replacement:
Crucial for interference engines (most XU and EW petrols, XUD diesels). Generally every 60,000 - 80,000 miles (100,000 - 120,000 km) or 5 years. Failure can cause catastrophic engine damage.
Engine Oil Type:
Depends on engine. Common specifications include: PSA Grade 4 (10W-40, 15W-50) for older XU/XUD, and various API SL/SM or ACEA A3/B3/B4 specifications for later EW engines. Refer to manual for exact grade and viscosity.
Coolant Type:
Ethylene glycol-based antifreeze, typically a blue or purple/pink long-life coolant. PSA specific coolant types might be recommended. Capacity approx. 7-8 liters.
Brake Fluid Type:
DOT 4 brake fluid.
Transmission Fluid Manual:
GL-4 specification gear oil, typically 75W-80 or 75W-90. Capacity around 2.2 - 2.5 liters.
Transmission Fluid Automatic:
Specific ATF fluid (e.g., LT 71141 for AL4) - critical to use the correct type. Capacity around 5-6 liters for a full change.
Common Faults:
Rear axle beam pivot bearings wear out, causing alignment issues and a knocking noise. Suspension drop links, ball joints, and bushes can wear. Electrical gremlins (window motors, central locking) are not uncommon. Radiator fan issues. Clutch slave cylinder leaks. Engine management issues on some petrol variants.
Hdi Engine Issues:
Glow plug issues, turbo wear, injector sealing problems, some variants can suffer from oil pump drive wear.
Petrol Engine Issues:
Uneven idling (throttle body issues), oil leaks, potential for head gasket failure on higher mileage engines, ignition coil pack failures.