🏷️ Basic Information Identification Make: Citroën Model: C4 Generation: C4 I (Phase I/II) Model Year: 2008 Codes Chassis Code: Phase I/II (Facelifted) 👋 Introduction Market Position Vehicle Segment: Compact family car (C-segment) Competitive Analysis Key Competitors: Volkswagen Golf, Ford Focus, Opel/Vauxhall Astra, Renault Mégane, Peugeot 307/308 Key Features Design Philosophy: Distinctive, avant-garde styling, emphasis on comfort and innovative features. Manual Benefit: Empowers owners and independent technicians with dealer-level knowledge for accurate and efficient maintenance and repair. Manual Origin Source: Official Citroën service documentation, identical to what dealership technicians use. 📋 Manual Details Coverage Areas Primary Coverage: All models and all repairs A-Z Page Count Estimated Page Count: Varies by specific publication, typically 1000+ pages for comprehensive digital versions, or multiple volumes for printed editions. Manual Type Type: Service and Repair Manual Language Language: English (primary, as indicated by product description for international sales) Format Format: Likely Digital (PDF) or potentially physical book (multiple volumes likely) 📖 Manual Coverage Systems Covered Engine: Complete engine overhaul, diagnostics, timing belt/chain replacement, fuel system, ignition system, cooling system, exhaust system. Transmission: Manual and automatic transmission repair, clutch replacement, gearbox overhaul, torque converter diagnostics. Brakes: Brake system diagnostics, ABS, EBD, disc brake service, drum brake service, brake fluid replacement. Suspension: Front and rear suspension component replacement, shock absorber/strut replacement, ball joint service, bush replacement, wheel alignment procedures. Steering: Power steering system diagnosis, rack and pinion repair, steering column servicing. Electrical: Full electrical system diagrams, starter, alternator, battery, lighting, fuses, relays, body control modules (BCM), comfort systems. Bodywork: Body panel repair, door mechanisms, window regulators, trim removal and installation, dent repair, rust prevention. HVAC: Air conditioning system service, refrigerant handling, heater core replacement, blower motor service. Safety Systems: Airbag system diagnostics and replacement, seatbelt mechanisms. Exhaust System: Catalytic converter replacement, exhaust pipe repair, muffler service, lambda sensor replacement. Cooling System: Radiator replacement, thermostat service, water pump replacement, coolant bleeding procedures. Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, spark plug replacement, fluid checks and top-offs. Troubleshooting: Diagnostic procedures for common and uncommon faults, symptom-based troubleshooting charts. Repair: Step-by-step repair instructions for all major vehicle components and systems. Diagnostics: OBD-II (On-Board Diagnostics) code interpretation, sensor testing, actuator testing, specialized diagnostic tool usage. Fuel System Repair: Fuel pump replacement, injector cleaning and replacement, fuel pressure regulation. Ignition System Repair: Spark plug replacement, ignition coil testing and replacement, distributorless ignition system diagnostics. Body Electrical: Lighting system repairs, wiper/washer system, horn, central locking, power windows, heated mirrors. Chassis Component Replacement: Steering rack replacement, power steering pump replacement, wheel bearing replacement. Technical Depth Depth: Comprehensive, from basic maintenance to complete overhaul and advanced diagnostics, mirroring dealer technician level. Diagnostic Tools: Covers use of Peugeot/Citroën Diagbox software (or earlier equivalent) for advanced diagnostics, coding, and programming. 📊 Manual Specifications File Format Digital Format: PDF (likely with searchable text and high-resolution diagrams) Print Quality Diagram Resolution: High-resolution, clear and detailed technical drawings and schematics. Binding Type Physical Binding: If printed: Spiral-bound or stitched for lay-flat use in a workshop environment. Likely multiple volumes. Paper Type Physical Paper: If printed: Durable, glossy paper suitable for workshop environments. ⚙️ Engine Specifications Primary Engine Engine Options 2008: Range including 1.4L (8V/16V), 1.6L (16V VTi, HDi), 2.0L (16V HDi). Specific engines covered depend on market and trim. Common engines for 2008: 1.4L (KFV/KFU), 1.6L (NFU, 5FW), 1.6 HDi (DV6), 2.0 HDi (DW10). Performance Engine Hp Range: Approximately 75 HP (1.4L) to 138 HP (2.0L HDi) depending on engine variant. Engine Torque Range: Approximately 118 Nm (1.4L) to 320 Nm (2.0L HDi) depending on engine variant. Fuel System Fuel Delivery: Multi-point fuel injection (MPI) for petrol, Common Rail Direct Injection (CRDi) for diesel. Cylinder Arrangement Configuration: Inline 4-cylinder Engine Management ECU Type: Bosch, Siemens, or similar OEM ECU Timing Drive Mechanism: Timing belt (1.4L, 1.6L petrol) or Timing chain/belt (HDi diesel variants). Specific engine requires checking. 🔧 Transmission Standard Manual Transmission: 5-speed manual (e.g., BE4, MA5) and 6-speed manual (on some higher-spec models/engines). Optional Automatic Transmission: 4-speed automatic (AL4) and 6-speed automated manual (EGS - 'SensoDrive' or 'Quickshift' on some variants). Features Clutch Type: Hydraulically operated single dry plate clutch. Fluid Type Manual Gearbox Oil: Specific gear oil (e.g., PSA Standard 9730.AE or equivalent GL-4 75W-80/75W-90). Automatic Gearbox Oil: ATF (Automatic Transmission Fluid) specific to the AL4 gearbox (e.g., LT 71141 or equivalent). 📐 Dimensions Exterior Body Styles: 5-door hatchback, 3-door hatchback, 5-door station wagon (C4 Picasso/Grand Picasso is a separate model but shares platform lineage). Length: Approx. 4260 mm (5-door hatch) Width: Approx. 1773 mm Height: Approx. 1471 mm Cargo Boot Capacity: Approx. 314 liters (5-door hatchback) Weights Curb Weight: Approx. 1200-1400 kg depending on engine and equipment. Wheelbase Wheelbase: Approx. 2608 mm 🛡️ Safety Features Ratings Euro Ncap Rating: 5 Stars (achieved for Phase I models, including 2008) Active Features ABS: Standard Anti-lock Braking System...
Fuel pump replacement, injector cleaning and replacement, fuel pressure regulation.
Ignition System Repair:
Spark plug replacement, ignition coil testing and replacement, distributorless ignition system diagnostics.
Body Electrical:
Lighting system repairs, wiper/washer system, horn, central locking, power windows, heated mirrors.
Chassis Component Replacement:
Steering rack replacement, power steering pump replacement, wheel bearing replacement.
Technical Depth
Depth:
Comprehensive, from basic maintenance to complete overhaul and advanced diagnostics, mirroring dealer technician level.
Diagnostic Tools:
Covers use of Peugeot/Citroën Diagbox software (or earlier equivalent) for advanced diagnostics, coding, and programming.
📊 Manual Specifications
File Format
Digital Format:
PDF (likely with searchable text and high-resolution diagrams)
Print Quality
Diagram Resolution:
High-resolution, clear and detailed technical drawings and schematics.
Binding Type
Physical Binding:
If printed: Spiral-bound or stitched for lay-flat use in a workshop environment. Likely multiple volumes.
Paper Type
Physical Paper:
If printed: Durable, glossy paper suitable for workshop environments.
⚙️ Engine Specifications
Primary Engine
Engine Options 2008:
Range including 1.4L (8V/16V), 1.6L (16V VTi, HDi), 2.0L (16V HDi). Specific engines covered depend on market and trim. Common engines for 2008: 1.4L (KFV/KFU), 1.6L (NFU, 5FW), 1.6 HDi (DV6), 2.0 HDi (DW10).
Performance
Engine Hp Range:
Approximately 75 HP (1.4L) to 138 HP (2.0L HDi) depending on engine variant.
Engine Torque Range:
Approximately 118 Nm (1.4L) to 320 Nm (2.0L HDi) depending on engine variant.
Fuel System
Fuel Delivery:
Multi-point fuel injection (MPI) for petrol, Common Rail Direct Injection (CRDi) for diesel.
Cylinder Arrangement
Configuration:
Inline 4-cylinder
Engine Management
ECU Type:
Bosch, Siemens, or similar OEM ECU
Timing Drive
Mechanism:
Timing belt (1.4L, 1.6L petrol) or Timing chain/belt (HDi diesel variants). Specific engine requires checking.
🔧 Transmission
Standard
Manual Transmission:
5-speed manual (e.g., BE4, MA5) and 6-speed manual (on some higher-spec models/engines).
Optional
Automatic Transmission:
4-speed automatic (AL4) and 6-speed automated manual (EGS - 'SensoDrive' or 'Quickshift' on some variants).
Features
Clutch Type:
Hydraulically operated single dry plate clutch.
Fluid Type
Manual Gearbox Oil:
Specific gear oil (e.g., PSA Standard 9730.AE or equivalent GL-4 75W-80/75W-90).
Automatic Gearbox Oil:
ATF (Automatic Transmission Fluid) specific to the AL4 gearbox (e.g., LT 71141 or equivalent).
📐 Dimensions
Exterior
Body Styles:
5-door hatchback, 3-door hatchback, 5-door station wagon (C4 Picasso/Grand Picasso is a separate model but shares platform lineage).
Length:
Approx. 4260 mm (5-door hatch)
Width:
Approx. 1773 mm
Height:
Approx. 1471 mm
Cargo
Boot Capacity:
Approx. 314 liters (5-door hatchback)
Weights
Curb Weight:
Approx. 1200-1400 kg depending on engine and equipment.
Wheelbase
Wheelbase:
Approx. 2608 mm
🛡️ Safety Features
Ratings
Euro Ncap Rating:
5 Stars (achieved for Phase I models, including 2008)
Active Features
ABS:
Standard Anti-lock Braking System (ABS) with Electronic Brake-force Distribution (EBD) and Emergency Brake Assist (EBA).
Esp:
Optional Electronic Stability Program (ESP) on many models.
Passive Features
Airbags:
Driver and passenger front airbags, side airbags, curtain airbags.
Seatbelts:
Pre-tensioning seatbelts with force limiters.
Child Restraint:
ISOFIX child seat mounting points.
💡 Technology Features
Infotainment
Audio System:
Factory fitted radio/CD player, often with steering wheel controls. Optional MP3 compatibility and upgraded sound systems.
Navigation:
Optional factory fitted navigation system (e.g., MyWay, WIP Nav).
Driver Assistance
Cruise Control:
Available as an option on many models.
Parking Sensors:
Optional front and rear parking sensors.
Connectivity
Bluetooth:
Optional Bluetooth hands-free system.
Lighting
Headlights:
Halogen headlights standard, optional Xenon headlights on higher trims.
Comfort Features
Climate Control:
Manual or automatic climate control.
🔧 Maintenance
Service Intervals
Oil Change Interval:
Typically 20,000 km or 1 year, whichever comes first, depending on engine oil specification and driving conditions. Diesel variants may have shorter intervals with DPF. Manual will specify exact intervals based on engine.
Timing Belt Replacement:
Critical for petrol engines. Typically 120,000 km or 5 years, whichever comes first. Manual is essential for correct procedure and torque settings.
Fluid Specifications
Engine Oil Petrol:
Synthetic, e.g., PSA Standard B71 2290 or 2296, viscosity typically 0W-30 or 5W-30 (check manual for specific engine).
Engine Oil Diesel:
Synthetic, e.g., PSA Standard B71 2290, viscosity typically 0W-30 or 5W-30 (check manual for specific engine and DPF compatibility).
Coolant:
Organic Acid Technology (OAT) type coolant, typically extended life, PSA Specification G33 or G34.
Specific part number varies by engine, e.g., 1109.AY for certain 1.6/2.0 petrol engines. Manual is definitive.
Air Filter:
Specific part number varies by engine, e.g., 1444.XW for many petrol models. Manual is definitive.
📚 Vehicle History
Brand Heritage
Citroen Legacy:
French automotive manufacturer with a long history of innovation and distinctive design, known for comfort and advanced suspension systems (e.g., hydropneumatic).
Model Evolution
C4 Lineage:
Successor to the Citroën Xsara. The C4 I was launched in 2004, with a facelift (Phase II) occurring in 2008, which includes the 2008 model year.
Production
Production Period C4 I:
2004 – 2010 (with facelift for 2008)
Manufacturing Locations:
Primary manufacturing in France (e.g., PSA Aulnay-sous-Bois plant), potentially other locations depending on market specific production.
🏆 Awards & Recognition
Recognitions
Euro Ncap Award:
5-star safety rating from Euro NCAP, demonstrating excellent occupant protection.
Design Awards:
The C4 I's distinctive design has been praised by automotive critics and contributed to its market appeal.