The Citroen C4 I Coupe 1.4i 16V, produced between 2008 and 2010 as part of the Phase II refresh of the first-generation C4 Coupe (codenamed LX), represented an entry-level offering within the model range. Positioned as a stylish and affordable alternative to traditional hatchbacks, the C4 Coupe aimed to attract buyers seeking a more individualistic design. This particular variant, equipped with the 88 horsepower 1.4-liter engine and a five-speed manual transmission, was designed for economy and accessibility, targeting drivers prioritizing fuel efficiency and lower running costs over outright performance. It occupied the lower end of the C4 Coupe lineup, sitting below the more powerful 1.6 and 2.0-liter engine options.
Technical Specifications
| Brand | Citroen |
| Model | C4 |
| Generation | C4 I Coupe (Phase II, 2008) |
| Type (Engine) | 1.4i 16V (88 Hp) |
| Start of production | 2008 |
| End of production | 2010 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 5 |
| Doors | 3 |
| Fuel consumption (urban) | 8.7 l/100 km (27 US mpg, 32.5 UK mpg, 11.5 km/l) |
| Fuel consumption (extra urban) | 5.2 l/100 km (45.2 US mpg, 54.3 UK mpg, 19.2 km/l) |
| Fuel consumption (combined) | 6.4 l/100 km (36.8 US mpg, 44.1 UK mpg, 15.6 km/l) |
| CO2 emissions | 153 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 12.8 sec |
| Acceleration 0 – 62 mph | 12.8 sec |
| Acceleration 0 – 60 mph | 12.2 sec |
| Maximum speed | 182 km/h (113.09 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 13.4 kg/Hp, 74.5 Hp/tonne |
| Weight-to-torque ratio | 8.9 kg/Nm, 112.6 Nm/tonne |
| Power | 88 Hp @ 5250 rpm |
| Power per litre | 64.7 Hp/l |
| Torque | 133 Nm @ 3250 rpm (98.1 lb.-ft. @ 3250 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | KFU ET3J4 |
| Engine displacement | 1360 cm3 (82.99 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 75 mm (2.95 in.) |
| Piston Stroke | 77 mm (3.03 in.) |
| Compression ratio | 10.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Engine oil capacity | 3 l (3.17 US qt | 2.64 UK qt) |
| Coolant | 5.8 l (6.13 US qt | 5.1 UK qt) |
| Kerb Weight | 1181 kg (2603.66 lbs.) |
| Max. weight | 1701 kg (3750.06 lbs.) |
| Max load | 520 kg (1146.4 lbs.) |
| Trunk (boot) space – minimum | 314 l (11.09 cu. ft.) |
| Trunk (boot) space – maximum | 1083 l (38.25 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%) | 1500 kg (3306.93 lbs.) |
| Permitted trailer load with brakes (12%) | 1200 kg (2645.55 lbs.) |
| Permitted trailer load without brakes | 628 kg (1384.5 lbs.) |
| Permitted towbar download | 63 kg (138.89 lbs.) |
| Length | 4288 mm (168.82 in.) |
| Width | 1769 mm (69.65 in.) |
| Width including mirrors | 1964 mm (77.32 in.) |
| Height | 1456 mm (57.32 in.) |
| Wheelbase | 2608 mm (102.68 in.) |
| Front track | 1497 mm (58.94 in.) |
| Rear (Back) track | 1502 mm (59.13 in.) |
| Front overhang | 950 mm (37.4 in.) |
| Rear overhang | 730 mm (28.74 in.) |
| Minimum turning circle | 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 | 5 gears, manual 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 |
| Tires size | 205/55 R16 |
| Wheel rims size | 16 |
Powertrain & Engine Architecture
The C4 Coupe 1.4i 16V utilized the KFU engine code, a naturally aspirated, inline-four cylinder petrol engine. This engine was a common sight in various PSA Group vehicles of the era. It featured a multi-point fuel injection system and a double overhead camshaft (DOHC) valvetrain, operating four valves per cylinder. This configuration helped to optimize breathing and contribute to the engine’s modest power output. The 1360cc displacement provided a balance between fuel economy and acceptable performance for everyday driving. The five-speed manual transmission was a standard offering, providing a relatively direct connection between the engine and the front wheels. The transmission’s gear ratios were tuned for fuel efficiency, prioritizing higher gears for cruising rather than rapid acceleration.
Driving Characteristics
The 1.4i 16V C4 Coupe offered a predictable, if not particularly exciting, driving experience. With 88 horsepower, acceleration was leisurely, taking approximately 12.8 seconds to reach 62 mph. The engine felt strained when pushed hard, particularly when overtaking or climbing hills. The five-speed manual transmission allowed drivers to keep the engine in its optimal power band, but the lack of significant torque (133 Nm) meant frequent downshifts were necessary. Compared to the 1.6 or 2.0-liter versions, this variant felt noticeably slower and less refined. However, its lighter weight contributed to improved handling and a more nimble feel in city driving. The steering was light and precise, making it easy to maneuver in tight spaces.
Equipment & Trim Levels
The 1.4i 16V C4 Coupe typically came equipped with a reasonable level of standard features, including air conditioning, power steering, electric front windows, and a basic audio system. Safety features such as ABS and front airbags were also standard. Interior upholstery was typically cloth, with a functional, if somewhat basic, dashboard layout. Optional extras included alloy wheels, rear electric windows, and an upgraded audio system with CD player. The trim level was generally considered the entry-level offering, focusing on providing essential features at an affordable price point.
Chassis & Braking
The C4 Coupe’s chassis featured an independent McPherson strut suspension at the front and a semi-independent coil spring suspension at the rear. This setup provided a comfortable ride quality, absorbing bumps and imperfections in the road surface effectively. The front brakes were ventilated discs, offering adequate stopping power, while the rear brakes were solid discs. The ABS system helped to maintain steering control during emergency braking situations. The suspension was tuned for comfort rather than sporty handling, resulting in a slight degree of body roll during cornering.
Market Reception & Comparison
The Citroen C4 Coupe 1.4i 16V was generally well-received as an affordable and stylish coupe. Critics praised its attractive design and comfortable ride, but noted its lack of outright performance. Compared to the higher-powered variants, the 1.4i offered significantly better fuel economy, making it an attractive option for budget-conscious buyers. However, its slower acceleration and limited torque meant it wasn’t the ideal choice for drivers who frequently carried passengers or drove on challenging roads. The 1.6-liter engine offered a noticeable improvement in performance without a significant increase in fuel consumption, making it a popular alternative.
Legacy
The KFU engine, while not known for being particularly robust, proved to be reasonably reliable with regular maintenance. Common issues included occasional oil leaks and sensor failures. The C4 Coupe 1.4i 16V remains a relatively affordable used car today, appealing to buyers seeking a stylish and economical coupe. Its simplicity and relatively low running costs make it a practical choice for everyday transportation. However, potential buyers should be aware of the engine’s limitations and ensure that it has been properly maintained throughout its life. Parts availability is generally good, as the KFU engine was used in a wide range of PSA Group vehicles.
