Instruments and controls 59Charging systemp illuminates red.Illuminates when the ignition isswitched on and goes out shortly afterthe engine starts.Illuminates when the engine isrunningStop, switch off engine. Battery is notcharging. Engine cooling may beinterrupted. Power to the brake servounit may be cut. Seek the assistanceof a workshop.Malfunction indicator lightZ illuminates yellow.Illuminates when the ignition isswitched on and goes out shortly afterthe engine starts.Illuminates when the engine isrunningFault in the emission control system.The permitted emission limits may beexceeded. Seek the assistance ofa workshop immediately.Diesel enginesThe engine stops and Z illuminatesif the fuel level is too low. If the tankhas been run dry, bleed the fuelsystem 3 99.Vehicles with electric throttle bodysystemIf the battery has been disconnected,the system must be recalibrated uponreconnection of the battery. Holdignition key in ON position for5 seconds without running theengine.If the procedure is not successful Zremains illuminated after the engineis started. Seek the assistance ofa workshop immediately.Service vehicle soonDiesel enginesA illuminates or flashes in yellow.Illuminates when the engine isrunningFault in the engine electronics. Seekthe assistance of a workshopimmediately.Illuminates in combination with 8 ifcleaning of the diesel particle filter isnot successful or possible. Seek theassistance of a workshopimmediately. Diesel particle filter3 84.FlashesWhen the ignition is switched on,there may be a fault in the immobilisersystem; the engine cannot be started.Immobiliser 3 24.Brake systemR illuminates red.Illuminates when the parking brake isreleased if the brake fluid level is toolow 3 98.9 WarningStop. Do not continue yourjourney. Consult a workshop.Illuminates after the ignition isswitched on if the parking brake isapplied 3 89.