Auto Start Stop function.
The Auto Start-Stop function makes sure that fuel is only used when your car is actually driving.
Whilst waiting at traffic lights or in stop-and-go traffic, the Auto Start-Stop function takes to save fuel by switching off the engine as soon as the car is idling and you have taken your foot off the clutch (manual transmission), or when you brake to a complete standstill (Steptronic transmission).
A signal in the Info Display indicates that the Auto Stop-Start function is active. As soon as you shift into gear (manual transmission) or take your foot off the brake (Steptronic transmission), the engine switches itself back on in a split second so you can continue driving without delay.
The Auto Start-Stop function never compromises driving comfort and safety, as it remains inactive if the engine has not reached its ideal running temperature, the interior has not yet been sufficiently heated/cooled, if the battery level is too low or if you are turning the steering wheel. A central control unit restarts the engine if required, even when the car is at a standstill. For example, if the car starts to roll forward or if the windscreen becomes foggy. The Auto Start-Stop function can be switched off at any time with the push of a button.