Driving and operating 113Overrun cut-offThe fuel supply is automatically cut offduring overrun, i.e. when the vehicleis driven with a gear engaged butaccelerator is released. Overrun cut-off is deactivated if catalytic convertertemperature is high.Stop-start systemThe stop-start system helps to savefuel and to reduce the exhaustemissions. When conditions allow, itswitches off the engine as soon as thevehicle is at a low speed or at astandstill, e.g. at a traffic light or in atraffic jam. It starts the engineautomatically as soon as the clutch isdepressed. A battery sensor ensuresthat an Autostop is only performed ifthe battery is sufficiently charged fora restart.ActivationThe stop-start system is available assoon as the engine is started, thevehicle starts-off and the conditionsas stated below in this section arefulfilled.DeactivationDeactivate the stop-start systemmanually by pressing the eco button.The deactivation is indicated by theLED in the button going off.AutostopIf the vehicle is at a low speed or at astandstill, activate an Autostop asfollows:■ Depress the clutch pedal■ shift the selector lever to neutral■ release the clutch pedalThe engine will be switched off whilethe ignition stays on.An Autostop is indicated by theneedle at the AUTOSTOP position inthe tachometer.During an Autostop, the heatingperformance, power steering andbrake performance will bemaintained.Conditions for an AutostopThe stop-start system checks if eachof the following conditions is fulfilled.■ The stop-start system is notmanually deactivated■ the bonnet is fully closed■ the driver's door is closed or thedriver's seat belt is fastened
