The Citroën C4 I Hatchback, launched in 2004, represented a significant departure for the French automaker, moving away from the traditional hatchback shape towards a more contemporary and spacious design. The Phase I model, produced from 2004 to 2008, was a key player in the compact family car segment in Europe. Within the C4 range, the 1.6i 16V (109 hp) variant paired with a four-speed automatic transmission occupied a middle ground, offering a balance between affordability, comfort, and ease of use. It was positioned as a practical choice for buyers prioritizing convenience over outright performance, appealing to families and drivers seeking a relaxed driving experience.
Technical Specifications
| Brand | Citroen |
| Model | C4 |
| Generation | C4 I Hatchback (Phase I, 2004) |
| Type (Engine) | 1.6i 16V (109 Hp) Automatic |
| Start of production | 2004 |
| End of production | 2008 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 10.6 l/100 km (22.2 US mpg, 26.6 UK mpg, 9.4 km/l) |
| Fuel consumption (extra urban) | 5.8 l/100 km (40.6 US mpg, 48.7 UK mpg, 17.2 km/l) |
| Fuel consumption (combined) | 7.6 l/100 km (30.9 US mpg, 37.2 UK mpg, 13.2 km/l) |
| CO2 emissions | 180 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 13.1 sec |
| Acceleration 0 – 62 mph | 13.1 sec |
| Acceleration 0 – 60 mph | 12.4 sec |
| Maximum speed | 188 km/h (116.82 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 11.7 kg/Hp, 85.6 Hp/tonne |
| Weight-to-torque ratio | 8.7 kg/Nm, 115.4 Nm/tonne |
| Power | 109 Hp @ 5750 rpm |
| Power per litre | 68.7 Hp/l |
| Torque | 147 Nm @ 4000 rpm (108.42 lb.-ft. @ 4000 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | NFU TU5JP4 |
| Engine displacement | 1587 cm3 (96.84 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 78.5 mm (3.09 in.) |
| Piston Stroke | 82 mm (3.23 in.) |
| Compression ratio | 9.6:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 3.25 l (3.43 US qt, 2.86 UK qt) |
| Coolant | 6.7 l (7.08 US qt, 5.9 UK qt) |
| Kerb Weight | 1274 kg (2808.69 lbs.) |
| Max. weight | 1794 kg (3955.09 lbs.) |
| Max load | 520 kg (1146.4 lbs.) |
| Trunk (boot) space – minimum | 320 l (11.3 cu. ft.) |
| Trunk (boot) space – maximum | 1023 l (36.13 cu. ft.) |
| Fuel tank capacity | 60 l (15.85 US gal, 13.2 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Permitted trailer load with brakes (8%) | 1400 kg (3086.47 lbs.) |
| Permitted trailer load with brakes (12%) | 1200 kg (2645.55 lbs.) |
| Permitted trailer load without brakes | 674 kg (1485.92 lbs.) |
| Permitted towbar download | 62 kg (136.69 lbs.) |
| Length | 4260 mm (167.72 in.) |
| Width | 1773 mm (69.8 in.) |
| Width including mirrors | 1964 mm (77.32 in.) |
| Height | 1471 mm (57.91 in.) |
| Wheelbase | 2608 mm (102.68 in.) |
| Front track | 1497 mm (58.94 in.) |
| Rear (Back) track | 1510 mm (59.45 in.) |
| Front overhang | 935 mm (36.81 in.) |
| Rear overhang | 717 mm (28.23 in.) |
| Drag coefficient (Cd) | 0.29 |
| Minimum turning circle (turning diameter) | 11.3 m (37.07 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 4 gears, automatic transmission |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Semi-independent, coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 195/65 R15 91H; 205/55 R16 90V |
| Wheel rims size | 6J x 15 ET27; 6.5J x 16 ET26 |
INTRODUCTION
The Citroën C4 I, introduced in 2004, marked a shift in Citroën’s design philosophy, moving away from the more rounded forms of its predecessors. The 1.6i 16V Automatic variant, powered by the NFU (TU5JP4) engine, was a popular choice for buyers seeking a comfortable and practical hatchback. This model year falls within the Phase I production run (2004-2008), characterized by its distinctive styling and focus on interior space. It was designed to compete with rivals like the Ford Focus, Volkswagen Golf, and Renault Mégane in the highly competitive European C-segment.
Powertrain & Engine Architecture
The heart of the C4 1.6i Automatic is the NFU (TU5JP4) 1.6-liter inline-four cylinder engine. This engine, a mainstay in the PSA Group’s (Peugeot-Citroën) lineup, features a double overhead camshaft (DOHC) valvetrain with four valves per cylinder. It utilizes multi-point fuel injection for precise fuel delivery. The engine produces 109 horsepower at 5750 rpm and 147 Nm (108.42 lb-ft) of torque at 4000 rpm. The engine’s design prioritized fuel efficiency and smooth operation over outright performance. Paired with this engine is a four-speed automatic transmission, offering convenient gear changes but lacking the efficiency and responsiveness of more modern automatic gearboxes. This transmission was chosen for its simplicity and reliability, catering to drivers who preferred ease of use over sporty driving dynamics.
Driving Characteristics
The 1.6i Automatic C4 offered a comfortable, if not particularly exhilarating, driving experience. The four-speed automatic transmission, while smooth, resulted in noticeable gear changes and a lack of urgency during acceleration. The 0-60 mph time of around 12.4 seconds and a top speed of 116.82 mph reflect this. The gear ratios were optimized for fuel economy and relaxed cruising rather than spirited driving. Compared to the manual transmission version of the same engine, the automatic suffered a slight performance penalty. Higher-spec C4 models equipped with the 2.0-liter petrol or 1.6 and 2.0-liter HDi diesel engines offered significantly more power and torque, providing a more engaging driving experience. However, these models came at a higher price point.
Equipment & Trim Levels
The C4 1.6i Automatic typically came equipped with a reasonable level of standard features. These included power steering, central locking, electric front windows, and an air conditioning system. Interior upholstery was typically cloth, with a functional and durable design. Higher trim levels offered options such as alloy wheels, rear electric windows, a CD stereo system, and even parking sensors. The dashboard layout was modern for its time, with a centrally mounted instrument cluster that rotated with the steering wheel column to maintain optimal visibility. Optional extras included a panoramic sunroof and leather upholstery.
Chassis & Braking
The C4 I utilized a McPherson strut front suspension and a semi-independent coil spring rear suspension. This setup provided a comfortable ride quality, absorbing bumps and imperfections in the road surface effectively. The front brakes were ventilated discs, offering good stopping power, while the rear brakes were solid discs. Anti-lock Braking System (ABS) was standard, enhancing safety during emergency braking situations. The C4’s chassis was designed to prioritize comfort and stability over sporty handling. Stabilizer bars were fitted to both the front and rear axles to reduce body roll during cornering.
Market Reception & Comparison
The Citroën C4 1.6i Automatic was generally well-received by automotive critics as a practical and comfortable family car. However, the four-speed automatic transmission was often criticized for its lack of responsiveness and efficiency compared to newer automatic gearboxes. Fuel economy was respectable, averaging around 30.9 US mpg in combined driving, but the diesel variants offered significantly better fuel efficiency. Compared to the manual version of the 1.6i engine, the automatic version was slightly less fuel-efficient. The C4’s spacious interior and comfortable ride were consistently praised, making it a popular choice for families.
Legacy
The Citroën C4 I, including the 1.6i Automatic variant, has proven to be a relatively reliable vehicle in the long term. The NFU (TU5JP4) engine is known for its durability, although regular maintenance is essential to prevent issues such as oil leaks and timing belt failure. The four-speed automatic transmission is generally reliable, but can be prone to wear and tear with high mileage. Today, the C4 I can be found on the used car market at affordable prices, making it an attractive option for budget-conscious buyers seeking a practical and comfortable hatchback. While not a performance icon, the 1.6i Automatic C4 remains a testament to Citroën’s commitment to comfort and practicality.
