The Citroën C8 2.2 HDi Biturbo (170 hp) FAP, produced between 2007 and 2008, represents a significant iteration within the first generation (Phase I) of Citroën’s large MPV offering. Part of the U4 platform shared with the Peugeot 807 and Fiat Ulysse, the C8 aimed to provide a spacious and comfortable family vehicle, particularly popular in the European market. This specific variant, equipped with the DW12BTED4 engine and a six-speed manual transmission, occupied a mid-range position in the C8 lineup, balancing performance with fuel efficiency and offering a more refined driving experience than the lower-powered options. It was designed to compete with other large MPVs like the Renault Espace and Volkswagen Sharan.
Technical Specifications
| Brand | Citroen |
| Model | C8 |
| Generation | C8 (Phase I) |
| Type (Engine) | 2.2 HDi Biturbo (170 Hp) FAP |
| Start of production | 2007 |
| End of production | 2008 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Minivan, MPV |
| Seats | 7 |
| Doors | 5 |
| Fuel consumption (urban) | 9.2 l/100 km (25.6 US mpg) |
| Fuel consumption (extra urban) | 6.1 l/100 km (38.6 US mpg) |
| Fuel consumption (combined) | 7.2 l/100 km (32.7 US mpg) |
| CO2 emissions | 191 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 10 sec |
| Acceleration 0 – 62 mph | 10 sec |
| Acceleration 0 – 60 mph | 9.5 sec |
| Maximum speed | 200 km/h (124.27 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 10.5 kg/Hp |
| Weight-to-torque ratio | 4.8 kg/Nm |
| Power | 170 Hp @ 4000 rpm |
| Torque | 370 Nm @ 1500 rpm (272.9 lb.-ft. @ 1500 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | 4HT DW12BTED4 |
| Engine displacement | 2179 cm3 (132.97 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 85 mm (3.35 in.) |
| Piston Stroke | 96 mm (3.78 in.) |
| Compression ratio | 16.6:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | BiTurbo, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 5.3 l (5.6 US qt | 4.66 UK qt) |
| Coolant | 9 l (9.51 US qt | 7.92 UK qt) |
| Kerb Weight | 1790 kg (3946.27 lbs.) |
| Max. weight | 2570 kg (5665.88 lbs.) |
| Max load | 780 kg (1719.61 lbs.) |
| Trunk (boot) space – minimum | 225 l (7.95 cu. ft.) |
| Trunk (boot) space – maximum | 2948 l (104.11 cu. ft.) |
| Fuel tank capacity | 80 l (21.13 US gal | 17.6 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (12%) | 1820 kg (4012.41 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4727 mm (186.1 in.) |
| Width | 1854 mm (72.99 in.) |
| Width with mirrors folded | 1952 mm (76.85 in.) |
| Width including mirrors | 2205 mm (86.81 in.) |
| Height | 1766-1856 mm (69.53 – 73.07 in.) |
| Wheelbase | 2823 mm (111.14 in.) |
| Front track | 1570 mm (61.81 in.) |
| Rear track | 1548 mm (60.94 in.) |
| Front overhang | 1013 mm (39.88 in.) |
| Rear overhang | 891 mm (35.08 in.) |
| Minimum turning circle | 11.62 m (38.12 ft.) |
| Drivetrain | Front wheel drive |
| Number of gears | 6 |
| Gearbox type | Manual transmission |
| Front suspension | Independent, 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 | Hydraulic |
| Tires size | 215/60 R16 |
| Wheel rims size | 6.5J x 16 |
Powertrain & Engine Architecture
The heart of the C8 2.2 HDi Biturbo is the DW12BTED4 engine, a 2.2-liter inline-four diesel. This engine is notable for its use of a sequential twin-turbocharger setup. The smaller turbocharger provides boost at low engine speeds, minimizing turbo lag and improving responsiveness during everyday driving. At higher RPMs, the larger turbocharger takes over, delivering increased power and torque. This configuration, combined with an intercooler, allows the engine to produce 170 horsepower at 4000 rpm and 370 Nm (272.9 lb-ft) of torque at just 1500 rpm. The engine utilizes a common rail direct injection system, ensuring precise fuel delivery and contributing to both performance and fuel efficiency. The six-speed manual transmission provides a good balance between fuel economy and driver control, with gear ratios optimized for both highway cruising and acceleration.
Driving Characteristics
The 2.2 HDi Biturbo offered a noticeable step up in performance compared to the lower-powered C8 variants. While not a sports car, the engine’s torque output provided ample power for overtaking and carrying a full load of passengers and luggage. The twin-turbo setup minimized turbo lag, resulting in a relatively smooth and linear power delivery. The six-speed manual transmission allowed drivers to keep the engine in its optimal power band. Compared to the 1.8L petrol versions, the 2.2 HDi offered significantly better fuel economy and a more relaxed driving experience, particularly on long journeys. However, it wasn’t as nimble or engaging as some of its competitors with lighter curb weights.
Equipment & Trim Levels
The C8 2.2 HDi Biturbo typically came equipped with a generous level of standard features. These included air conditioning, power windows, central locking, and an integrated audio system. Higher trim levels offered options such as leather upholstery, a sunroof, rear parking sensors, and a navigation system. The interior was designed with practicality in mind, featuring a modular seating arrangement that allowed for flexible cargo space. The dashboard layout was functional and user-friendly, although the materials used were not particularly luxurious.
Chassis & Braking
The C8’s chassis was designed to prioritize comfort and stability. It featured an independent McPherson strut suspension at the front and a semi-independent coil spring suspension at the rear. This setup provided a reasonably comfortable ride, even on uneven surfaces. The C8 2.2 HDi Biturbo was equipped with ventilated disc brakes at the front and solid discs at the rear, providing adequate stopping power for its weight class. Anti-lock Braking System (ABS) was standard, enhancing safety during emergency braking situations.
Market Reception & Comparison
The Citroën C8 2.2 HDi Biturbo was generally well-received by automotive critics. It was praised for its spacious interior, comfortable ride, and fuel-efficient engine. However, some reviewers noted that the C8’s styling was somewhat bland and that its handling was not as sharp as some of its competitors. Compared to the petrol-powered C8 variants, the 2.2 HDi offered superior fuel economy and torque, making it a more practical choice for long-distance travel. Against rivals like the Renault Espace and Volkswagen Sharan, the C8 offered a competitive package in terms of space, comfort, and price.
Legacy
The DW12BTED4 engine, found in the C8 2.2 HDi Biturbo, proved to be a relatively reliable unit when properly maintained. Common issues included occasional problems with the turbocharger and the diesel particulate filter (DPF). However, these issues were not widespread and could often be addressed with routine servicing. Today, the C8 2.2 HDi Biturbo represents an affordable and spacious MPV option on the used car market. Its fuel efficiency and comfortable ride continue to appeal to families seeking a practical and versatile vehicle. However, potential buyers should be aware of the potential maintenance costs associated with a diesel engine and the importance of ensuring the DPF is functioning correctly.
