The Citroen C4 I Hatchback, specifically the 1.6 HDi variant producing 109 horsepower, was a key model in Citroen’s lineup from 2008 to 2010, representing the second phase of the first-generation C4 (Mk1). Positioned as a mid-range offering, this version aimed to balance fuel efficiency with acceptable performance for everyday driving. It was a significant player in the European compact hatchback market, competing with vehicles like the Ford Focus, Volkswagen Golf, and Peugeot 308. The Phase II update brought subtle styling revisions and improvements to interior trim and equipment levels compared to the initial 2004 launch.
Technical Specifications
| Brand | Citroen |
| Model | C4 |
| Generation | C4 I Hatchback (Phase II, 2008) |
| Type (Engine) | 1.6 HDi (109 Hp) |
| Start of production | 2008 |
| End of production | 2010 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 6.1 l/100 km (38.6 US mpg, 46.3 UK mpg, 16.4 km/l) |
| Fuel consumption (extra urban) | 4 l/100 km (58.8 US mpg, 70.6 UK mpg, 25 km/l) |
| Fuel consumption (combined) | 4.8 l/100 km (49 US mpg, 58.9 UK mpg, 20.8 km/l) |
| CO2 emissions | 128 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 11.2 sec |
| Acceleration 0 – 62 mph | 11.2 sec |
| Acceleration 0 – 60 mph | 10.6 sec |
| Maximum speed | 192 km/h (119.3 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 11.7 kg/Hp, 85.8 Hp/tonne |
| Weight-to-torque ratio | 5.3 kg/Nm, 189 Nm/tonne |
| Power | 109 Hp @ 4000 rpm |
| Power per litre | 69.9 Hp/l |
| Torque | 240 Nm @ 1750 rpm (177.01 lb.-ft. @ 1750 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | 9HY DV6TED4 |
| Engine displacement | 1560 cm3 (95.2 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 75 mm (2.95 in.) |
| Piston Stroke | 88.3 mm (3.48 in.) |
| Compression ratio | 18:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 3.8 l (4.02 US qt | 3.34 UK qt) |
| Coolant | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Kerb Weight | 1270 kg (2799.87 lbs.) |
| Max. weight | 1800 kg (3968.32 lbs.) |
| Max load | 530 kg (1168.45 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%) | 1300 kg (2866.01 lbs.) |
| Permitted trailer load with brakes (12%) | 1300 kg (2866.01 lbs.) |
| Permitted trailer load without brakes | 672 kg (1481.51 lbs.) |
| Permitted towbar download | 66 kg (145.51 lbs.) |
| Length | 4275 mm (168.31 in.) |
| Width | 1773 mm (69.8 in.) |
| Width including mirrors | 1964 mm (77.32 in.) |
| Height | 1496 mm (58.9 in.) |
| Wheelbase | 2608 mm (102.68 in.) |
| Front track | 1505 mm (59.25 in.) |
| Rear (Back) track | 1510 mm (59.45 in.) |
| Front overhang | 950 mm (37.4 in.) |
| Rear overhang | 717 mm (28.23 in.) |
| Drag coefficient (Cd) | 0.31 |
| 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 | 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 | 205/50 R17 |
| Wheel rims size | 17 |
Powertrain & Engine Architecture
The heart of this C4 variant is the 9HY DV6TED4 engine, a 1.6-liter inline-four cylinder diesel. This engine is part of the PSA Group’s (Peugeot Citroen) DV6 family, known for its relatively compact size and fuel efficiency. The ‘TED4’ designation indicates a turbocharged diesel engine with direct injection. The engine utilizes a common rail direct injection system, delivering fuel at extremely high pressure for optimized combustion. A turbocharger with an intercooler further enhances performance by forcing more air into the cylinders. The engine features a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, contributing to improved breathing and power output. The 109 horsepower and 240 Nm (177 lb-ft) of torque were considered adequate for comfortable cruising and everyday driving. The engine was paired with a 5-speed manual transmission, which was the standard offering for this trim level.
Driving Characteristics
The 1.6 HDi 109 hp C4 offered a balanced driving experience. While not particularly sporty, it provided sufficient power for typical commuting and highway driving. Acceleration from 0-60 mph took around 10.6 seconds, and the top speed was approximately 119 mph. The turbocharger provided a noticeable boost in power at lower engine speeds, making it relatively easy to keep up with traffic. The 5-speed manual transmission was well-matched to the engine’s characteristics, offering smooth gear changes. Compared to the more powerful 2.0 HDi variants, this version felt less strained during acceleration and offered better fuel economy. However, it lacked the outright performance of its higher-powered siblings. The gear ratios were tuned for fuel efficiency rather than outright speed.
Equipment & Trim Levels
The 1.6 HDi 109 hp C4 typically came with a reasonable level of standard equipment. This included air conditioning, power windows, central locking, and an audio system with CD player. Safety features such as ABS, front airbags, and seatbelt pretensioners were also standard. Higher trim levels, such as the Exclusive, added features like alloy wheels, automatic headlights and wipers, a multi-function steering wheel, and upgraded interior trim. Optional extras included a panoramic sunroof, satellite navigation, 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 effectively. The front brakes were ventilated discs, while the rear brakes were solid discs. ABS (Anti-lock Braking System) was standard, enhancing braking performance and stability. The suspension was tuned for comfort rather than sporty handling, resulting in a slightly softer and more forgiving ride.
Market Reception & Comparison
The Citroen C4 1.6 HDi 109 hp was generally well-received by critics for its fuel efficiency and comfortable ride. It was considered a practical and economical choice for buyers seeking a compact hatchback. Compared to the more powerful 2.0 HDi variants, it offered better fuel economy but lacked the same level of performance. The 1.6 HDi engine was also known for its relatively quiet operation. Fuel economy figures of around 49 US mpg (combined) were highly competitive for its class. Reliability was generally good, although some owners reported issues with the diesel particulate filter (DPF) system, a common problem with modern diesel engines.
Legacy
The 1.6 HDi engine became a mainstay in the PSA Group’s lineup for many years, powering a wide range of vehicles. The C4 I 1.6 HDi 109 hp remains a popular choice in the used car market, particularly for buyers seeking an economical and reliable compact hatchback. While older examples may require maintenance on components like the DPF and turbocharger, the engine itself is generally robust. The C4 I, in this configuration, represents a solid and practical choice for those prioritizing fuel efficiency and everyday usability.
