Driving and operating 131The limited speed will flash in theDriver Information Centre and achime sounds during this period.Release the accelerator pedal andthe speed limiter function isreactivated once a speed lower thanthe limit speed is obtained.DeactivationPress button y: speed limiter isdeactivated and the vehicle can bedriven without speed limit.The limited speed is stored and acorresponding message appears inthe Driver Information Centre.Resume limit speedTurn thumb wheel to RES/+. Thestored speed limit will be obtained.Switching offPress button L, the speed limitindication in the Driver InformationCentre extinguishes. The storedspeed is deleted.By pressing button m to activatecruise control or adaptive cruisecontrol or by switching off the ignition,speed limiter is also deactivated andthe stored speed is deleted.Forward collision alertThe forward collision alert can help toavoid or reduce the damage causedby front-end crashes. If a vehicledirectly ahead is approached tooquickly, a warning chime and alert inthe Driver Information Centre isprovided.The green illuminated vehicle aheadsymbol A appears in thespeedometer when the system hasdetected a vehicle in the driving path.Precondition is, that forward collisionalert is activated in the vehiclepersonalisation menu 3 94 or that it isnot deactivated by the button V(depending on the system, seefollowing).Forward collision alert based onfront camera systemForward collision alert uses the frontcamera system in the windscreen todetect a vehicle directly ahead, inyour path, within a distance of approx.60 m.ActivationForward collision alert operatesautomatically above 25 mph, if it is notdeactivated by button V, see below.Selecting the alert sensitivityThe alert sensitivity can be set tonear, medium or far.
