🏷️ Basic Information

Make:

Citroën

Model:

C4

Model Generation:

First Generation (2004-2010)

Platform Code:

Platform PSA PF2

👋 Introduction

Positioning:

The Citroën C4 (2004-2007) was positioned as a stylish and comfortable compact family car, competing in a segment with strong rivals from Peugeot, Renault, Ford, and Volkswagen.

Key Competitors:

Peugeot 307, Renault Mégane, Ford Focus, Volkswagen Golf, Opel Astra.

Design Philosophy:

Known for its distinctive design, comfortable ride, and innovative features like the fixed-hub steering wheel.

Target Audience:

Families and individuals seeking a practical yet aesthetically distinct vehicle with a focus on comfort and safety.

📋 Manual Details

Applicable Years:

2004, 2005, 2006, 2007

Applicable Engines:

Petrol & Diesel variants

Estimated Pages:

Hundreds (exact count not specified, but stated as 'hundreds of pages')

Type:

Service Repair Workshop Manual

Language:

English (implied by product description)

Format:

Downloadable PDF

📖 Manual Coverage

Engine Mechanical:

Engine overhaul, internal components, lubrication, cooling, fuel, ignition, timing systems, emissions control

Engine Management:

ECU diagnostics, sensor data, fuel injection control, ignition timing control, emissions management

Transmission Manual:

Clutch, gearbox overhaul, shift mechanisms, driveline components

Transmission Automatic:

Automatic transmission overhaul, valve body, torque converter, electronic control

Suspension:

Front and rear suspension, shock absorbers, springs, control arms, bushings, wheel alignment

Steering:

Power steering system (hydraulic/electric), steering rack, column, linkages

Brakes:

Hydraulic system, ABS, EBD, brake discs, pads, calipers, lines, parking brake

Electrical System:

Battery, charging system, starter, lighting, instrumentation, power windows, mirrors, locks

Body And Interior:

Body panels, doors, hood, trunk, bumpers, seats, trim, HVAC system

Climate Control:

Air conditioning system, heater, ventilation, controls, refrigerant handling

Safety Systems:

Airbag system, seatbelt pre-tensioners, electronic stability control (if applicable to these years/models)

Maintenance:

Scheduled maintenance, oil changes, filter replacements, fluid checks and top-ups, spark plug replacement, belt inspection/replacement

Troubleshooting:

Diagnostic procedures for all major systems, fault code interpretation, common problem diagnosis

Repair:

Step-by-step instructions for component removal, repair, and reinstallation

Overhaul:

Complete engine and transmission rebuild procedures

Diagnostics:

Detailed diagnostic charts and flowcharts for various issues

Wiring Diagrams:

Comprehensive electrical wiring diagrams for all circuits

Exploded Diagrams:

Detailed exploded views with part identification for easy assembly/disassembly

Depth:

Professional-level, covering everything from basic maintenance to complete engine and transmission rebuilds, electrical diagnostics, and body repair.

Manual Purpose:

Designed for comprehensive vehicle repair, maintenance, and troubleshooting, empowering owners and professional technicians alike.

📊 Manual Specifications

Format:

PDF

Searchability:

Likely text-searchable, enabling quick finding of specific information.

Printability:

Printable by page or entire manual.

Binding:

N/A (Digital Download PDF)

Paper Type:

N/A (Digital Download PDF)

Operating Systems:

Windows & macOS

Usage License:

Lifetime use on unlimited devices.

Usage Rights:

Full, unrestricted access for life.

⚙️ Engine Specifications

Petrol Engines:

Likely includes 1.4L (ET3), 1.6L (NFU/TU5JP4), 2.0L (EW10J4/EW10A) petrol engines. Specific engine codes and power outputs vary.

Diesel Engines:

Likely includes 1.4L HDi (DV4TD), 1.6L HDi (DV6TED4), 2.0L HDi (DW10TD/DW10ATED) diesel engines. Specific engine codes and power outputs vary.

Typical Power Output Petrol:

Range from approximately 75 PS (1.4) to 180 PS (2.0 VTS).

Typical Power Output Diesel:

Range from approximately 70 PS (1.4 HDi) to 136 PS (2.0 HDi).

Injection Type:

Multi-point fuel injection (MPI) for petrol, Common Rail Direct Injection (CRDi) for diesel.

Emission Standards:

Euro 3 and Euro 4 compliant depending on engine and specific market.

🔧 Transmission

Transmission Options:

Manual transmission (5-speed and 6-speed depending on engine).

Transmission Options:

Automated Manual Transmission (EGS - Electronic Gearbox System) and traditional 4-speed automatic transmission on certain models.

Drivetrain:

Front-wheel drive (FWD).

📐 Dimensions

Body Styles:

Hatchback (3-door and 5-door), Saloon (4-door - C4 Sedan/Lounge), Coupé (2-door).

Length:

Approx. 4260-4270 mm (Hatchback).

Width:

Approx. 1773 mm.

Height:

Approx. 1457 mm (Hatchback).

Curb Weight:

Varies significantly by engine and equipment, typically 1250-1450 kg.

🛡️ Safety Features

Euro Ncap Rating:

5 Stars (for the Hatchback model) in its initial Euro NCAP testing, indicating a high level of occupant protection.

Active Safety:

ABS with EBD (Electronic Brakeforce Distribution), Emergency Brake Assist (EBA), often ESP (Electronic Stability Program) as an option or standard on higher trims.

Passive Safety:

Multiple airbags (front, side, curtain), front seatbelt pre-tensioners, anti-whiplash front head restraints.

💡 Technology Features

Audio System:

Factory fitted radio/CD player, with steering wheel mounted controls on many models. Some offered MP3 playback.

Navigation:

Optional factory-fitted navigation system available on higher trim levels.

Cruise Control:

Available as an option or standard on higher trims.

Parking Sensors:

Optional rear parking sensors available on some models.

Bluetooth:

Optional Bluetooth hands-free connectivity may be present on later models within this range.

🔧 Maintenance

Oil Change Interval:

Typically every 20,000 km (12,500 miles) or 2 years, whichever comes first, depending on engine and driving conditions. Always refer to specific engine recommendations.

Timing Belt Replacement:

For petrol engines with timing belts (e.g., 1.6 TU5JP4), replacement is usually recommended at around 90,000-120,000 km (56,000-75,000 miles) or 10 years. HDi engines often use timing chains or belts with longer intervals. Crucial to verify based on engine code.

Engine Oil:

Refer to specific engine requirements. Commonly uses 5W-30 or 5W-40 synthetic oil meeting PSA (Peugeot-Citroën) specifications (e.g., B71 2290 for diesel, B71 2302 or similar for petrol).

Coolant:

Ethylene glycol-based coolant, typically pink or blue, meeting PSA specifications (e.g., TL-VS 372.00 or equivalent).

Brake Fluid:

DOT 4 brake fluid.

Transmission Fluid Manual:

GL-4 or GL-5 75W-80 or 75W-90 gear oil. Capacity varies by gearbox type.

Transmission Fluid Automatic:

Specific ATF fluid meeting PSA requirements, e.g., LT 71141 or equivalent. Capacity varies.

Common Problems:

Early models sometimes experienced issues with electronic components (e.g., BSI - Body Control Unit), suspension wear (especially bushings), and certain diesel engine components (e.g., DPF on later HDi variants not typically fitted in these early years but common on later models, or injector issues on early common rail).

Fixed Hub Steering Wheel:

The unique fixed-hub steering wheel could sometimes exhibit minor wear on the central controls, but generally robust.

E G S Transmission Quirks:

The EGS automated manual transmission could be less refined than conventional automatics or manuals, with occasional jerky shifts.

📚 Vehicle History

Citroen Philosophy:

Citroën has a long history of innovation in automotive design and comfort, often pushing boundaries with unique engineering solutions.

C4 Lineage:

The C4 replaced the Citroën Xsara and was part of Citroën's strategy to offer a more modern and distinctive alternative in the compact segment. It shares its platform with the Peugeot 307.

Manufacturing Locations:

Primarily manufactured in France (e.g., Mulhouse) and also in other locations for specific markets.

🏆 Awards & Recognition

Design Awards:

The C4's design, particularly its interior and the fixed-hub steering wheel, received positive commentary and awards for innovation and style.

Ownership Satisfaction:

Ownership satisfaction varied, often praised for comfort and design, but sometimes criticized for electronic reliability compared to some competitors of the era.