If any condition is not met, this will be indicated in the instrument panel.
The engine does not auto-stop
The engine will not auto-stop if:
- the vehicle has not reached a speed of ca 10 km/h (6 mph) after starting.
- after several auto-stops, the speed must again exceed approximately ca 10 km/h (6 mph) before the next auto-stop.
- the driver's seat belt is unbuckled.
- the start battery's charge is below the minimum level.
- the engine is not running at its normal operating temperature.
- The ambient temperature is under approximately -5 °C (23 °F) or over approximately 37 °C (98 °F).
- windshield heating is activated.
- the climate system settings and the actual climate in the passenger compartment differ.
- the vehicle is backing up.
- the start battery's temperature is above or below the permitted limits.
- the driver is turning the steering wheel hard.
- 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 system has not been activated).
- many starts during a short period of time have triggered the starter motor's overheating protection.
- a trailer's electrical system is connected to the vehicle's electrical system.
- the transmission is not running at its normal operating temperature.
- The gear selector is in mode M (±).
The engine does not auto-start
The engine will not auto-start after an 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.
The engine auto-starts while the brake pedal is depressed
In the following situations, the engine will auto-start even if the brake pedal is depressed:
- High levels of condensation on the inside of the windows.
- the climate system settings and the actual climate in the passenger compartment differ.
- Electrical current consumption is temporarily high or the start battery's charge is below the minimum level.
- The brake pedal is pumped 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.
Warning
Do not open the hood if the engine has auto-stopped. Turn off the engine by switching off the ignition before lifting the hood.