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 of standby at low speed

The vehicle has set off from where it was parked;
For vehicles equipped with automatic gearboxes:
  • the gearbox is in D, Mor N position;
and
  • the brake pedal is pressed (sufficiently hard);
If the warning light flashes, this means that the brake pedal is not sufficiently pressed;
and
  • the accelerator pedal is not pressed;
and
  • the speed is zero or, depending on the vehicle, as soon as the speed is lower than a threshold specific to the vehicle.
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;
and
  • the clutch pedal is released. If the warning light flashes, this means that the clutch pedal must be released completely;
and
  • the vehicle speed is lower than a threshold specific to the vehicle.
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
Before leaving the vehicle, the engine must be stopped (not put in standby) STARTING, STOPPING THE ENGINE.

Conditions of standby at high speed

Depending on the vehicle, standby may be activated in free-wheel mode DRIVING ADVICE, ECO-DRIVING.
For vehicles equipped with automatic gearboxes:
  • the gearbox is in D or M position;
and
  • the brake pedal is released;
and
  • the acceleration pedal is released.
The warning light on the instrument panel is lit when the engine is on standby.

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 running so as to be ready to move off quickly.
For vehicles equipped with automatic gearboxes:
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.
Tip
To fill up with fuel, the engine must be off (and not only on standby in the case of vehicles equipped with the Stop and Startfunction): you must switch off the ignitionSTARTING, STOPPING THE ENGINE.

Conditions for coming out of engine standby

For automatic gearboxes:
  • when the driver's door is opened;
or
  • when the driver's seat belt is unfastened;
  • the brake pedal is released and D, M or N position is engaged;
or
  • R position is engaged;
or
  • the accelerator pedal is pressed;
or
  • in manual mode, the gear change paddles are activated.
Tip
With the "AUTOHOLD" function activated "AUTOHOLD" FUNCTION, the parking brake can be released and the engine kept on standby.
To exit engine standby, with the brake pedal released, press the accelerator pedal.
For 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;
  • 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;
  • ...
The warning light appears on the instrument panel to indicate that engine standby is not available.
WARNING
The engine must be switched off (not put on standby) before any operation is carried out in the engine compartment.
You must switch off the ignition STARTING, STOPPING THE ENGINE.
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 stopped (not put in standby) STARTING, STOPPING 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 illuminates.
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 STARTING, STOPPING THE ENGINE.

Operating faults

If the "Check Stop & Start" message appears on the instrument panel accompanied by the warning light 1, this indicates that the system is deactivated.
Consult an approved dealer.
Tip
Special note: when the engine is on standby, pressing the switch 1 once will automatically restart the engine.

stop and start