Introduction 31 therefore a condition of the vehicle's operat- ing permit. Operating the vehicle without AdBlue ® will lead to the invalidation of its operating permit. The legal consequence of this is that the vehicle may no longer be oper- ated on public roads. This may be a criminal offence or breach road traffic regulations in certain countries. Spe- cial concessions granted either at the time of purchase or to reduce operating costs, e.g. reduced taxes or road charges, may also be rendered invalid retroactively. This may be the case in both the country of registration and in the country where the vehicle is oper- ated.
Engine management monitors the BlueTEC ® exhaust gas aftertreatment systems for com- pliance with emissions laws and regulations. The on-board computer informs you, amongst other things, about the following: The on-board computer informs you in good time about any emissions-relevant malfunc- tions or operating errors and displays in order of priority: R grey event windows ( Y page 129) R red event windows ( Y page 138) For BlueTec ® 6 vehicles, the on-board com- puter also displays the · indicator lamp in the status area of the display for the duration of the malfunction detected. If you do not observe these event windows and their instructions, it is possible that:
R yellow event windows ( Y page 130) R for BlueTec ® 6 vehicles, the speed is then limited to approx. 20 km/h R the engine output is reduced R the diesel particle filter has to be replaced early If there is a malfunction of the BlueTec ® exhaust gas aftertreatment system, have it checked and repaired at a qualified specialist workshop. R the status of the BlueTec ® exhaust gas aftertreatment ( Y page 213) R the AdBlue ® level ( Y page 111) R the saturation level of the diesel particle filter ( Y page 213) If you attempt to operate the vehicle without AdBlue ® , with diluted AdBlue ® or with a dif- ferent reducing agent, this will be detected by the engine management system.
Other emis- sions-relevant malfunctions, e.g. dosage mal- functions or sensor errors, are also detected and logged. The ; indicator lamp shows emissions- relevant malfunctions after the engine is star- ted. For BlueTec ® 6 vehicles, the ; indica- tor lamp also shows the status of the Blue- Tec ® exhaust gas aftertreatment for faster on-the-spot checks by the authorities. The В indicator lamp warns you if the sat- uration level of the diesel particle filter is crit- ical and indicates any malfunction. Attachments, bodies, equipment and conversions Notes on body/equipment mounting directives !
For safety reasons, have bodies manufac- tured and fitted in accordance with the applicable Mercedes-Benz body/equip- ment mounting directives. These body/ equipment mounting directives ensure that the chassis and the body form one unit and that maximum operating and road safety is achieved. For safety reasons, Mercedes-Benz recom- mends that: R no other modifications should be made to the vehicle. R approval should be obtained from Mercedes-Benz in the event of deviations Z