Activating and deactivating the Start/Stop function

Updated 2021-10-19

The Start/Stop function is available when the vehicle is started. When the function is activated, the engine is temporarily switched off. The engine then starts automatically when the function is deactivated or when the vehicle requires this.

Activating the Start/Stop function

Depress the brake pedal and hold it down.

The Start/Stop function is activated and the engine switches off.

Note

In drive mode Comfort or Eco, the Start/Stop function can be activated before the vehicle is completely stationary.
When Adaptive Cruise Control or Pilot Assist is activated, the Start/Stop function is activated a few seconds after the vehicle is completely stationary.

Note

All of the vehicle's ordinary systems, such as lighting and radio, function normally even when the Start/Stop function is activated.

However, the function of certain equipment may be temporarily reduced, such as the climate system's blower speed or the volume of the speakers.

Deactivating the Start/Stop function

Release the brake pedal or lightly press the accelerator pedal.

The Start/Stop function is deactivated and the engine starts.

Note

When the Start/Stop function is deactivated and:

the automatic brakes at standstill function (Auto hold) is activated, the engine will not start until the accelerator pedal is depressed
Adaptive Cruise Control or Pilot Assist is activated, the engine will start when the accelerator pedal is depressed or the button on the steering wheel's left-side keypad is pressed
the vehicle is on an uphill gradient, HSA1 will activate to help prevent the vehicle from rolling backward
the vehicle is on a downhill gradient, release the brake pedal slightly. A slight increase in speed starts the engine.

Center display settings2

The center display shows whether the function is available or switched off.

Illuminated indication: the Start/Stop function is available.

Extinguished indication: the Start/Stop function is switched off.

Symbols in the instrument panel

The tachometer in the instrument panel indicates when the Start/Stop function is: available, active or not available.

Symbol	Meaning
	White – the function is available.
	Green – the function is activated.
	Gray – the function is not available.

If no symbol is shown in the instrument panel, the function is switched off.