Start/Stop Function Conditions

Certain conditions must be met for Start/Stop to function.

If any condition is not met, this will be indicated in the instrument panel.

Engine Will Not Auto-Stop

The engine will not auto-stop if:

• The vehicle has not reached speed 10 km/h after starting.
• After several auto-stops, the speed must again exceed approximately ca 10 km/h before the next auto-stop.
• The driver has not fastened the seat belt.
• The engine is not at normal operating temperature.
• The ambient temperature is under approximately -5 °C (23 °F) or over approximately 30 °C.
• Windshield heating is activated.
• The climate system settings and the actual climate in the passenger compartment differ.
• The vehicle is rolling backwards.
• The driver makes large steering wheel movements.
• The road gradient is very steep.
• The hood is open.
• Driving at high altitude and the engine has not reached its normal operating temperature.
• ABS has been activated.
• Hard braking (even if the ABS has not been activated).
• Many starts during a short period of time have triggered the starter motor's overheating protection.
• The exhaust particulate filter is full.
• A trailer is connected to the vehicle's electrical system.
• The transmission does not function at normal operating temperature.
• The gear selector is in mode M (±).
• If traffic conditions allow it (for example, in a traffic jam).

The engine does not start.

The engine will not restart automatically after Auto Stop if:

The driver is not wearing a seat belt, the gear selector is in the P position and the driver's door is open. The engine must be started normally.

Engine auto-start while the brake pedal is depressed.

In the following situations, the engine will auto-start even if the brake pedal is depressed:

• High condensation level on the inside of the windows.
• The climate system settings and the actual climate in the passenger compartment differ.
• The brake pedal pulsates repeatedly.
• The hood is open.
• The vehicle begins to roll or increases speed slightly if the engine auto-stopped before the vehicle was at a standstill.
• The driver's seat belt is unbuckled with the gear selector in the D or N positions.
• The gear selector is moved from D to R or M (±).
• The driver's door is opened with the gear selector in D. An audible signal and a text message informs the driver that the ignition is on.