9-7 Driving and operatingEngine exhaustDiesel particle filter (DPF) 3The diesel particle filter removespolluting soot particles out of theexhaust.The system contains a self-cleaningfunction at certain intervals. The filteris cleaned by burning the sootparticles at high temperature. Thisprocedure runs automatically undercertain vehicle conditions and cantake up to 30 minutes, during whichtime fuel consumption may increase.The smell and the noise that occurare normal.Self-cleaning may beginautomatically during idling; enginespeed increases and cooling fanoperates automatically.The system cannot automaticallyclean itself under certain vehicleconditions, such as driving shortdistances.If control indicator 8 illuminates, youshould continue driving, and as soonas the road and traffic situationpermits it, increase speed to morethan 50 mph (75 km/h) and dieselparticle filter cleaning will start.Cleaning is quicker at faster speedsand under load. The control indicatorextinguishes as soon as cleaning iscomplete.We recommend that you do not turnthe ignition off during cleaning.If regeneration of the diesel particlefilter is not successful or possible,control indicator A may illuminateand the vehicle goes into limp homemode: interrupt your journey andseek the assistance of a workshopimmediately.
