Mercedes-Benz

Operation of the ECO start/stop function

The engine is switched off automatically in the following situations if all vehicle conditions for an automatic engine stop are met:

you brake the vehicle to a standstill in transmission position or .

If you switch on the HOLD function in transmission position

, the engine will automatically stop in the following situations:

you stop behind a vehicle that is pulling away.
you stop at a stop sign when there is no vehicle in front of you.
you turn the steering wheel hard at a low speed.

In transmission position , the engine is not switched off automatically even when the HOLD function is switched on.

The engine is restarted automatically if:

you release the brake pedal in transmission position when the HOLD function is not active and the vehicle does not start to move.
you shift from transmission position .
you release the brake pedal and the vehicle starts to move on a gentle downhill gradient at a speed below 5 km/h.
you depress the accelerator pedal.
you permanently activate manual gearshifting.
you pull the left-hand steering wheel gearshift paddle.
you open or close the soft top.
an automatic engine start is necessary.

If the engine was switched off by the ECO start/stop function and you leave the vehicle, a warning tone sounds. The display message Vehicle is operational Switch off ignition before exiting also appears in the multifunction display. If you do not switch off the ignition, the ignition is automatically switched off after one minute.