With the arrival of the new V6 HDi FAP 240, the Citroën C5 and C6 are now proposing a change “win-win” for customers. Both sedans are a new step in the field of accreditation, with benefits in terms of driving pleasure of silence and even more accomplished performance while offering a substantial reduction in their fuel consumption and CO2 emissions 12 to 15%.

Citroen C5 and C6 3.0 V6 HDI 240 FAP
The most powerful diesel engine in the history of the brand provides two sedans range of advantages that further enhance their approval unanimously recognized. To achieve this level, the V6 Diesel has evolved into depth. Its 3-liter engine now achieved, and has received multiple optimization work: new system for direct injection common rail (common-rail) of the third generation, combustion chambers next-generation supercharger provided by a system with 2 turbochargers with variable geometry, exhaust gas recirculation system and energy recovery during deceleration.
The power output up 18% to now 177 kW (or 240 bhp EEC) at 3,800 rpm with maximum torque of 450 Nm Plan 1600 rpm. Always coupled to a gearbox 6-speed automatic, the combined cycle fuel consumption of 2 vehicles is only 7.4 l/100 km and CO2 emissions of 195 g / km, which represents a decrease from 12 to 15%.This new mechanic course meets the future Euro V emission standards
SURPRISING BENEFITS, THE DOUBLE BENEFIT OF THE CUSTOMER AND THE ENVIRONMENT
The changes with the adaptation of the V6 HDi 240 FAP allow a spectacular gain in terms of licensing and driving pleasure while allowing a significant reduction in fuel consumption and CO2 emissions.
The new engine has a maximum torque of 450 Nm The latter guarantees a great car to drive in daily use of the vehicle has some outstanding features:
- The maximum torque (450 Nm) is constant from 1600 to 3600 rpm, that is to say over a speed range that is more than ample for current usage of the vehicle.
- The available torque is greater than 400 Nm from 1400 to 4100 rpm.
- The value at 1500 rpm is 422 Nm – more than 17% HDI 208 2.7 V6 engine replaced – the guarantor of takeoffs even more effective.
These features result in performance improvement. The maximum speed progresses, are remarkable acceleration (0 to 100 km / h in 7.9 and 8.5 s for the C5 and C6 – the kilometer standing start in 28.5 and 29 seconds respectively) and rose again ( 80 to 120 km / h in 4.9 and 5.2 seconds).
Correspondingly, the fuel represents a net decrease. The combined cycle fuel consumption is only 7.4 liters per 100 kilometers for two models with CO2 emissions of 195 g / km. The latter value corresponds to a decrease of 12% and 15% C5 on C6. For the French market, this evolution also allows a saving of 850 € in the bonus-malus scheme (penalty of 750 € instead of 1 600 €).
The V6 HDi 240 FAP: THE HEART OF EVOLUTION
It is obvious that the net progress of these vehicles are primarily due to changes made to the engine. Significant changes have been adopted to enable it to reach its present level.
A cylinder increased to 3 liters
First, the capacity is increased from 2 721 to 2993 cm3 by a change in the bore and racing. This increase allows the Citroën C5 and C6 to be at the heart of the market for diesel V6.
A common-rail system of third generation
The power is entrusted to a system such as common rail for all engine variants of the HDI range. The novelty lies in the fact that this system now allows pressures up to 2000 bar cons before 1650. The injector nozzle, as against 6 to 8 holes before, allow even finer metering of fuel to the cylinders. They may still allow up to 5 injections per cycle: one or two pilot injections, two main injections and post-injection to treat pollutants. The nozzles used to homogenize the distribution of fuel for better combustion. The result is a noise reduction and treatment of polluting emissions “at source”.
Injectors, have a system for activating the piezoelectric needle placed in the middle of the latter to reduce their emissivity. Moreover, the injection pump delivers only the fuel needed for the proper functioning of the engine, the fuel return to tank is greatly reduced, allowing a decrease in temperature of the fuel and energy savings.
These various features have allowed a much greater responsiveness of the engine, reduced consumption and therefore CO2 emissions. Furthermore, these amendments allow a reduction in combustion noise, f













