Stop and Start function

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Stop and Start function

This system enables a reduced fuel consumption and lower greenhouse gas emissions. The system is activated automatically when the vehicle is started. During driving, the system stops the engine (standby) when the vehicle comes to a stop or is moving at a slow speed (depending on the vehicle). The warning light is displayed on the instrument panel.

Conditions for engine standby

The vehicle has set off from where it was parked;
For vehicles equipped with automatic gearboxes:
  • the gearbox is in D, M or N position;
and
  • the brake pedal is pressed (sufficiently hard);
If the warning light flashes while the vehicle is stationary and the "Press brake pedal" message appears on the instrument panel, this indicates that the brake pedal is not sufficiently pressed;
and
  • the accelerator pedal is not pressed;
and
  • when the vehicle speed is zero during approximately one second or, depending on the vehicle, as soon as the vehicle speed is below approximately 3 mph (5 km/h).
The engine remains on standby if position P is selected, or if position N is selected with the handbrake engaged and the brake pedal released.
For vehicles equipped with manual gearboxes:
  • the gearbox is in neutral;
If the warning light flashes while the vehicle is stationary and the "Shift to neutral" message appears on the instrument panel, this indicates that the gear lever should be shifted to neutral:
and
  • the clutch pedal is released;
and
  • the vehicle speed is less than approximately 3 mph (5 km/h).
For all vehicles:
Warning light on the instrument panel is lit when the engine is on standby.
The vehicle equipment remains operational while the engine is stopped.
When the engine switches to standby, the steering assistance may no longer be operational.
In this case it becomes operational again when the engine is no longer on standby or the speed exceeds approximately 1 mph (1 km/h) (downhill, slope, etc.).
WARNING
If the engine is put in standby, the electronic parking brake (depending on the vehicle) is not applied automatically.
WARNING
Keep your vehicle stationary when the engine is on standby (shown by the warning light on the instrument panel).
WARNING
Before leaving the vehicle, the engine must be switched off (and not put on standby) IGNITION-STARTER SWITCH ON A VEHICLE WITH KEY.IGNITION-STARTER SWITCH ON A VEHICLE WITH CARD.

Preventing the engine from standing by

In certain situations, such as negotiating a crossroads for instance, it is possible (with the system activated) to keep the engine on so as to be ready to move off quickly.
For vehicles equipped with automatic gearboxes and when the engine standby is performed only when the vehicle is stopped:
Keep the vehicle stationary without pressing too hard on the brake pedal.
For vehicles equipped with manual gearboxes:
Keep the clutch pedal pressed right down.
WARNING
To fill up with fuel, the engine must be switched off (and not only on standby in the case of vehicles equipped with the Stop and Start) function: you must switch off the ignition IGNITION-STARTER SWITCH ON A VEHICLE WITH KEY.IGNITION-STARTER SWITCH ON A VEHICLE WITH CARD.
Fire hazard.

Conditions for coming out of engine standby

For vehicles equipped with automatic gearboxes:
  • when the driver's door is opened;
or
  • when the driver's seat belt is unfastened;
or
  • with the brake pedal released and D or M position (depending on the vehicle) engaged;
or
  • with the brake pedal released, N position engaged and the parking brake released;
or
  • with the brake pedal pressed again, P position engaged or N position engaged with the parking brake applied;
or
  • the R position is engaged;
or
  • the accelerator pedal is pressed;
or
  • depending on the vehicle, in manual mode (M) with the gear paddles are activated AUTOMATIC GEARBOX.
Tip
With the "AUTOHOLD" function activated "AUTOHOLD" FUNCTION, the parking brake can be released and the engine kept on standby.
Press the accelerator pedal to exit vehicle standby.
For vehicles equipped with manual gearboxes:
  • when opening the driver's door, without any gear engaged and the clutch pedal released;
or
  • when unfastening the driver's seat belt, without any gear engaged and the clutch pedal released;
or
  • the gearbox is in neutral position and the clutch pedal is slightly pressed;
or
  • the engine is in gear and the clutch pedal is pressed right down.
Special note: depending on the vehicle, if you switch off the ignition when the engine is on standby, the warning light may be displayed for a few seconds on the instrument panel.
Tip
On vehicles equipped with a manual gearbox:
the restart may be interrupted if the clutch pedal is released too quickly while a gear is engaged.

Conditions preventing the standby of the engine

Certain conditions prevent the system from using the engine standby function, especially when:
  • the driver's door is not closed;
  • the driver's seat belt is not fastened;
  • reverse gear is engaged;
  • the bonnet is not locked;
  • the outdoor temperature is too low or too high;
  • the battery is not sufficiently charged;
  • the difference between the vehicle interior temperature and the automatic climate control setpoint is too high;
  • the Park Assist function is in operation;
  • the altitude is too high;
WARNING
Before carrying out any action in the engine compartment, you must switch off the ignition IGNITION-STARTER SWITCH ON A VEHICLE WITH KEY. or IGNITION-STARTER SWITCH ON A VEHICLE WITH CARD.
  • the slope is too steep for vehicles fitted with an automatic gearbox;
  • the "Clear View" function is activated AUTOMATIC CLIMATE CONTROL;
  • the engine temperature is too low;
  • the emission control system is being regenerated;
  • ...
Special feature of the automatic engine re-start
Under certain conditions, the engine can restart on its own in order to guarantee your safety and comfort.
This may occur when:
  • the outdoor temperature is too low or too high;
  • the "Clear View" function is activated AUTOMATIC CLIMATE CONTROL;
  • the battery is not sufficiently charged;
  • the vehicle speed is above 3 mph (5 km/h) (downhill slope, etc.);
  • the brake pedal is pressed repeatedly or there is a braking system requirement;
  • ...
The warning light is displayed on the instrument panel to notify you of automatic engine restarting.
WARNING
Before leaving the vehicle, the engine must be switched off (and not put on standby) IGNITION-STARTER SWITCH ON A VEHICLE WITH KEY.IGNITION-STARTER SWITCH ON A VEHICLE WITH CARD.
The warning light may appear along with a message on the instrument panel:
  • "Battery charge optimisation" to prioritise battery charging;
  • "Prioritising Thermal Comfort" to prioritise air conditioning;
  • "Prioritising running engine" to prioritise engine operations.
Tip
Special note: when the engine is on standby, pressing the switch 1 once will automatically restart the engine.

Deactivating, activating the function

Press the switch 1 to deactivate the function.
The "Stop & Start deactivated" message appears on the instrument panel and the switch 1 indicator light is lit.
Pressing again will reactivate the system.
The "Stop & Start Activated" message appears on the instrument panel and the switch 1 indicator light goes out.
The system is automatically reactivated each time the vehicle is started using the start button IGNITION-STARTER SWITCH ON A VEHICLE WITH KEY.IGNITION-STARTER SWITCH ON A VEHICLE WITH CARD.

Operating faults

When the "Check Stop & Start" message appears on the instrument panel accompanied by the illumination of the switch 1 indicator light, this indicates that the system is deactivated.
Consult an approved dealer.

stop and start