🏷️ Basic Information

Make:

Citroën

Model:

C4

Year:

2004

Engine Code:

1.6 16V HDi

First Generation Start Year:

2004

Chassis Code:

B58

👋 Introduction

Target Audience:

Owners of the 2004 Citroën C4 1.6 16V HDi, independent repair shops, and automotive technicians.

Value Proposition:

Provides comprehensive, factory-level information at an accessible price, enabling cost-effective vehicle maintenance and repair, directly comparable to official dealer service manuals.

Manual Attributes:

Complete factory data, detailed diagrams, step-by-step instructions, troubleshooting guides, immediate download access, no shipping costs.

📋 Manual Details

Manual Coverage Scope:

Complete factory service and repair

Estimated Page Count:

Likely 1000+ pages (typical for comprehensive factory manuals)

Manual Type:

Service Repair Workshop Manual

Language:

English

File Format:

PDF

📖 Manual Coverage

Major Systems:

Engine, Fuel System, Throttle Body, Cooling System, Lubrication System, Chassis, Electrical System, Emission Control

Body And Chassis:

Body panel repairs, suspension systems (front and rear), steering system, brakes (hydraulic and electronic components), wheel and tire specifications.

Electrical System Detail:

Comprehensive coverage of the vehicle's electrical system, including lighting, ignition, starting, charging, instrument cluster, comfort controls, and diagnostic procedures for electronic control units (ECUs).

Repair And Maintenance Procedures:

General information, periodic maintenance, engine overhaul, fuel system repair, cooling and lubrication system servicing, chassis repair, electrical system diagnostics, troubleshooting, emission control servicing, wiring diagram interpretation

Troubleshooting Methodology:

Systematic troubleshooting guides for common faults and diagnostic procedures, often using error codes and specific testing methods for electrical and mechanical components.

Diagnostic And Repair Capabilities:

Detailed step-by-step instructions for disassembly, reassembly, repair, and diagnostic procedures, suitable for both DIY enthusiasts and professional mechanics. Includes exploded views and high-quality diagrams.

Engine Rebuild Scope:

Detailed instructions for engine disassembly, component inspection, measurement specifications (e.g., piston ring gap, bearing clearance), reassembly, and break-in procedures.

Fuel System Diagnostics:

Includes diagnostics for fuel injectors, high-pressure pump, fuel pressure sensors, and the fuel filter replacement.

Cooling System Repair:

Procedures for radiator replacement, water pump servicing, thermostat testing, and coolant flushing.

Chassis Alignment And Suspension:

Specifications for wheel alignment angles, shock absorber replacement, ball joint inspection, and steering rack servicing.

Brake System Overhaul:

Detailed procedures for brake pad and disc replacement, caliper servicing, bleeding the brake system, and troubleshooting ABS/ESP faults.

Air Conditioning Service:

While not explicitly listed, comprehensive manuals often include basic AC system checks, refrigerant charging information, and component replacement instructions (e.g., compressor, condenser).

Wiring Diagrams:

Includes detailed wiring schematics for all vehicle systems, crucial for electrical troubleshooting and component identification.

📊 Manual Specifications

PDF Quality:

High-resolution, printable without restriction, searchable text

Printability:

Printable without any restriction

Binding Method:

Digital Download (PDF)

Digital Format:

PDF

⚙️ Engine Specifications

Engine Type:

1.6L 16-valve HDi (High-pressure Direct Injection) Diesel

Engine Displacement:

1560 cc (cubic centimeters)

Bore X Stroke:

Typically 75 mm x 88.3 mm for this engine.

Compression Ratio:

Around 18.0:1

Horsepower Range:

Typically around 90-110 PS (metric horsepower) for this engine variant in 2004 models, specific figures depend on the exact engine tune.

Torque Range:

Expected torque figures in the range of 200-240 Nm, crucial for diesel engine drivability.

Fuel Injection Type:

Common Rail Direct Injection

Ignition System:

Compression ignition (Diesel)

Emission Control Features:

Diesel Particulate Filter (DPF) may be present, EGR (Exhaust Gas Recirculation), catalytic converter.

🔧 Transmission

Standard Transmission Type:

Likely a 5-speed manual transmission.

Gear Ratios Manual:

Specific gear ratios for 1st through 5th gear and reverse will be detailed in the manual, crucial for performance and fuel economy analysis.

Optional Transmission Type:

Possible availability of an automated manual transmission (e.g., EGS - Electronic Gearbox System) or a conventional automatic transmission, though less common for this specific diesel variant in 2004.

Transmission Fluid Type:

Manual gearbox oil specification will be detailed in the manual (e.g., specific API GL-4 or GL-5 rated gear oil).

📐 Dimensions

Body Styles:

The Citroën C4 B58 generation was initially launched as a 5-door hatchback. A 3-door hatchback version also existed.

Length:

Approximately 4260 mm for the 5-door hatchback.

Width:

Approximately 1773 mm (excluding mirrors).

Height:

Approximately 1471 mm.

Curb Weight:

Typically in the range of 1300-1400 kg, depending on specification.

Gross Vehicle Weight:

Will be listed in the manual, important for load capacity considerations.

Towing Capacity:

Will be specified in the manual if applicable for this model and engine.

🛡️ Safety Features

Euro Ncap Rating:

The Citroën C4 achieved a 5-star Euro NCAP safety rating for adult occupant protection, demonstrating strong crashworthiness.

Active Safety Systems:

Anti-lock Braking System (ABS), Electronic Brakeforce Distribution (EBD), Emergency Brake Assist (EBA), traction control (ASR), and Electronic Stability Program (ESP) were often optional or standard on higher trims.

Passive Safety Features:

Multiple airbags (front, side, curtain), pre-tensioning seatbelts, collapsible steering column, ISOFIX child seat anchorage points.

💡 Technology Features

Infotainment System:

Early models often featured a basic radio CD player. Higher trims might have had an integrated multi-function display with navigation capabilities. The manual will detail operation and troubleshooting.

Display Technology:

Central fixed digital display for speed and information, often with a separate smaller display for audio/climate. Some advanced models may have had a more integrated screen.

Driver Assistance Features:

Cruise control, speed limiter, and parking sensors could be available depending on the trim level. The manual details their functionality and maintenance.

Automatic Headlights:

Available on higher trims, featuring light sensors to activate headlights automatically.

Rain Sensing Wipers:

Also available on higher trims, automatically adjusting wiper speed based on rainfall intensity.

Connectivity Options:

Limited by 2004 standards, likely Bluetooth for hands-free calling on higher trims. Aux input for audio playback may also be present.

🔧 Maintenance

Oil Change Interval:

Typically every 20,000 km or 12 months (whichever comes first), using the correct grade of engine oil as specified in the manual.

Timing Belt Replacement:

The 1.6 HDi engine uses a timing belt. Replacement interval is typically around 150,000 km or 10 years, but the manual will specify the exact interval and any related components like the tensioner and idler pulleys.

Brake Fluid Change Interval:

Typically every 2 years, as specified in the manual, to maintain braking performance and prevent corrosion.

Cabin Air Filter Replacement:

Recommended annually or every 15,000-20,000 km for optimal air quality and HVAC performance.

Engine Oil Specification:

Likely Total Quartz 9000 5W-40 or an equivalent specification meeting PSA B71 2296 or ACEA C2 standards, important for diesel particulate filters.

Coolant Specification:

Extended life antifreeze/coolant, typically of the G12/G13 type (e.g., Total Glacelf Auto Supra), as per Citroën specifications.

Brake Fluid Specification:

DOT 4 brake fluid.

Power Steering Fluid:

Specific hydraulic fluid type for the power steering system will be listed in the manual.

Manual Gearbox Oil:

Likely a 75W-80 or 75W-90 API GL-4 or GL-5 gear oil, depending on specific gearbox design. The manual is essential for the correct specification.

Common Diesel Issues:

Potential issues with Diesel Particulate Filters (DPF) regeneration, EGR valve clogging, glow plug failure, and common rail system sensor faults are common in HDi engines of this era.

Common Citroen C4 Issues:

Early models sometimes experienced issues with the electronic parking brake system (if fitted), air conditioning system faults, and minor electrical gremlins. The manual will cover diagnosis and repair for these.

Diesel Injector Performance:

Degradation or clogging of diesel injectors can affect fuel atomization, leading to power loss, increased emissions, and rough running. The manual will guide on testing and cleaning/replacement.

Turbocharger Maintenance:

Proper oil changes and avoiding hard acceleration from cold are crucial for turbocharger longevity. The manual will offer maintenance advice.

📚 Vehicle History

Citroen Design Philosophy:

Citroën has a long history of innovative and distinctive automotive design, often prioritizing comfort, aerodynamics, and unique engineering solutions.

C4 Introduction Context:

The C4 (B58) was launched in 2004 as the successor to the Citroën Xsara, aiming to compete in the compact family car segment with a focus on modern styling, comfort, and technology.

Manufacturing Locations:

Primary production was at the PSA Peugeot Citroën plant in Aulnay-sous-Bois, France, and also in El Palomar, Argentina, and Villa Stevens, Egypt.

🏆 Awards & Recognition

Design Awards:

The Citroën C4 received critical acclaim for its distinctive and aerodynamic design, often highlighted in automotive reviews.

Safety Award Details:

5-star Euro NCAP rating is a significant recognition of its safety structure and occupant protection.