With the Stop and Start, the engine stops just before the vehicle comes to a standstill (traffic lights, traffic jams, etc.). It starts again automatically and instantaneously as soon as the driver takes his foot off the brake pedal to
move forward again. |
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| A more relaxed and enjoyable drive |
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With its exceptional – and immediately perceptible – benefits, the Stop and Start is a more relaxed and undemanding car to drive, particularly when the engine is in standby :
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hearing comfort for passengers, and respect
for other people |
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hearing comfort also, with the instant engine start-up, which is silent and transparent to the occupants |
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physical comfort, owing to the absence of engine vibration. |
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| This relaxed approach does not detract from driving pleasure. Quite the contrary. Stop and Start uses a discreet easy-to-learn technique that requires no change in driving style and that actually enhances driving pleasure. |
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Stop and Start on C3
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| Lower fuel consumption and CO2 emissions |
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| Stopping and starting the engine repeatedly no longer causes excess fuel consumption. The reversible alternator and electronic fuel injection bring fuel savings of around 10%, or 18 g of CO2/km, in the city. Over a standard combined cycle, savings are close to 6%.
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| A simple operation |
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When the driver applies the brakes to stop the car, the engine cuts out just before the car comes to a complete standstill (speed of less than 6 km/h). A green "eco" indicator lights up on the instrument cluster. The clutch is open. The engine remains in standby for as long as the driver keeps a foot on the brake pedal, even if the pressure is slight. When the driver releases the brake pedal, the engine starts up again automatically and instantaneously. The green "eco" indicator is switched off. When the driver presses the accelerator pedal down, the clutch gradually closes (SensoDrive gearbox).
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The driver can deactivate the "Stop and Start" system
at any time, using the "eco off" button on the central fascia. In this case, the car will function in the same way as a conventional SensoDrive vehicle. Pressing the
button again will reactivate the function. The “Stop & Start” system is reactivated automatically whenever the car is started. |
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| Reliable architecture |
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Reversible alternator |
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| The system comprises two key components: |
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a 2 kW reversible alternator performing the functions of both starter and alternator (supplying electricity to the onboard network), replacing the conventional alternator. The main advantages of using an alternator for
start-up are silence and speed (400 ms compared with 800 ms for a
conventional starter) ; |
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an electronic unit, which manages the alternator and provides a link with the engine control unit and built-in systems interface. |
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| The system is completed by a battery, a special belt and a belt tensioner. |
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| With the Stop and Start system the engine stops just before the vehicle comes to a standstill. There are fuel consumption and a CO2 emissions reduces by around 10% over an urban cycle. |
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* The models and/or versions featured on this site as well as their equipment, options and accessories may vary from one country to another or not be available locally. |
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