150 Driving and operatingsuch obstacles leave the detectionarea of the sensors duringapproach of the vehicle, acontinuous warning tone willsound.CautionPerformance of the sensors canbe reduced when sensors arecovered, e.g. by ice or snow.Performance of the parking assistsystems can be reduced due toheavy loading.Special conditions apply if thereare taller vehicles involved (e.g.off-road vehicles, mini vans,vans). Object identification in theupper part of these vehiclescannot be guaranteed.Objects with a very small reflectioncross-section, e.g. objects ofnarrow size or soft materials, maynot be detected by the system.Parking assist will not avoid acollision with objects which are outof the detection range of thesensors.NoteThe parking assist systemautomatically detects factory-fittedtowing equipment. It is deactivatedwhen the connector is plugged in.The sensor may detect a non-existent object (echo disturbance)caused by external acoustic ormechanical disturbances.NoteIf engaging a forward gear andexceeding a certain speed, the rearparking assist will be deactivatedwhen the rear carrier system isextended.If engaging reverse at first, theparking assist will detect the rearcarrier system and provide a buzzingsound. Press r or D briefly todeactivate the parking assist.Rear view cameraThe rear view camera assists thedriver when reversing by displaying aview of the area behind the vehicle.The view of the camera is displayedin the Colour-Info-Display.9 WarningThe rear view camera does notreplace driver vision. Note thatobjects that are outside thecamera's field of view and theadvanced parking assist sensors,e.g. below the bumper orunderneath the vehicle, are notdisplayed.Do not reverse the vehicle by onlylooking at the Info-Display andcheck the surrounding behind andaround the vehicle beforereversing.ActivationRear view camera is automaticallyactivated when reverse gear isengaged.