Drivin g and operatio n140Cont rol indica tor for pa rking d istancesensorsIf control indicator r illuminatescontinuously w hile d riv ing there is a fault inthe system . If the acoustic signal sounds3 times when there are no obstacles nearthe front or rear bump er, there is a fault inthe system .Hav e the cause of the fault remedied by aworkshop.To ensure the sa fety of other road usersand people in the vicinity a nd to avoiddam age to the vehic le, remember:z The parking d istance sensors sy stemshould only be considered as asupplementary function. Normalprecautions should be maintained w henreversing. C heck the rear view and usethe mirrors when rev ersing.z Do not p ush, scratch or otherwisedamage the sensors.Do not use high-pressure jet cleaners toclean the sensors. C lean only with a softspong e and clean wa ter..Automatic level control 3Automatic level control makes it possib le tokeep the heig ht of the vehicle constantwhen subjected to d ifferent loads in therear (e.g . when p assengers are occupy ingthe rear sea ts or when towing a carav an /trailer). This significantly improves driv ingconditions.The vehicle is autom atically raised at therear to its previous unloaded level,increa sing spring travel and groundclearance.Headlight ra ng e adjustment - see page 93.In the ev ent of malfunctions, do not utilisethe vehicle’s full load capacity. Have thecause of the fault remed ied by a w orkshopwithout delay .9 WarningUnder certain circumstances, v ariousreflective surfaces on objects or c lothingas well as ex ternal noise sources maycause the system to fail to d etec tobstacles.The parking distanc e sensors m ay notrec og nise sharp objects, thick clothes orspong e-like materia ls w hich ab sorb thefrequency.If the sensors are damaged or coveredwith snow, dirt or ice, the parkingdistance sensors may not ac tiv ate.For these reasons, care must be takenwhen reversing, even if the park ingdistance sensors are operational. This isof particular importance when in thevicinity of p edestrians.