Driving with start/stop function

The Start/Stop function temporarily switches off the engine when stationary and then restarts it automatically when the journey is resumed.

The Start/Stop function is available when the car is started and can be activated if certain conditions have been met.

The driver display indicates when the function is
  • Available
  • active
  • not available.

All of the car's normal systems such as lighting, radio, etc. work normally, even when the engine is auto-stopped. However, some equipment may have its output temporarily reduced, e.g. the climate control system's fan speed or extremely high volume on the audio system.

Auto-stop

The following is required for the engine to auto-stop:

With automatic gearbox
  • Stop the car with the foot brake and then keep your foot on the brake pedal - the engine stops automatically.
With manual gearbox
  • Declutch, set the gear lever in neutral position and release the clutch pedal - the engine stops automatically.

In drive mode Comfort or Eco, the engine may auto-stop before the car is completely stationary.

With adaptive cruise control or Pilot Assist activated, the engine will auto-stop after approximately 3 seconds.

Autostart

The following is required for the engine to auto-start:

With automatic gearbox
  • Release the brake pedal - the engine will autostart and you can continue driving. On an uphill gradient hill start assist (HSA1) engages, which prevents the car from rolling backwards.
  • When the Auto Hold function is activated, auto-start is delayed until the accelerator pedal is depressed.
  • When adaptive cruise control or Pilot Assist is activated, the engine will auto-start when the accelerator pedal is depressed, or by pressing the P5-1507-Symbol 5x3,5-CC rattknapp Återuppta hastighet button on the left keypad of the steering wheel.
  • Maintain foot pressure on the brake pedal and depress the accelerator pedal - the engine auto-starts.
  • On a downhill gradient: Release pressure on the brake pedal slightly so that the car begins to roll - the engine will auto-start after a slight speed increase.
With manual gearbox
  • With the gear lever in neutral position: Depress the clutch pedal or depress the accelerator pedal - the engine starts.
  • On a downhill gradient: Release pressure on the brake pedal slightly so that the car begins to roll - the engine will auto-start after a slight speed increase.

Symbols in the driver display

  • The text READY is shown in the tachometer when the function is available.
  • A pointer in the tachometer points to READY when the function is active and the engine is auto-stopped.
  • The text READY is greyed out when the function is not available.
  • No text is shown when the function is deactivated.
P6-1746-XC40-StartStop READY symbol in gauge
The function is active and the engine is auto-stopped.
  1. 1 Hill Start Assist