Catalytic converter, exhaust emissions 93Control indicator Z for exhaust emissionsIf it illuminates while the engine is running,it is possible a fault has occurred in theemission control system. The permittedemission values may be exceeded. Consulta workshop immediately.Control indicator A for engineelectronicsIlluminates for a few seconds when ignitionis switched on.If the control indicator illuminates when theengine is running, there is a fault in theengine electronics. The electronics switchto the emergency running programme, fuelconsumption may increase and thedriveability of the vehicle may be affected.In some cases the fault can be eliminatedby switching the engine off and back onagain. If the control indicator illuminatesagain when the engine is running, consult aworkshop to have the cause of the faulteliminated by a workshop.Diesel particle filter 3Even during normal use, there is still apossibility that the diesel particle filter maybecome partially blocked. The filter isautomatically cleaned under certaindriving conditions, however when controlindicator 8 is illuminated, the dieselparticle filter requires driver-inducedregeneration 1).9 WarningBefore attempting regeneration of thediesel particle filter, ensure roadconditions will allow the vehicle to safelytravel at speeds in excess of approx.40 mph (60 km/h) for up to 20 minutes.1) During regeneration, white smoke can beemitted from the exhaust which is notdetrimental to the vehicle.