2005 Mercedes G-Class Owner's Manual - Page 279

Operation Maintenance i If the battery is disconnected, the days of disconnection will not be included in the count shown by the maintenance service indicator. To arrive at the true maintenance service deadline, you will need to subtract these days from the days shown in the maintenance service indicator. Do not confuse the maintenance service indicator with the engine oil level indicator :. Resetting the maintenance service indicator In the event that the maintenance service on your vehicle is not carried out by an authorized Mercedes-Benz Light Truck Center, you can have the maintenance service indicator reset. The automotive maintenance facility carrying out the maintenance service will find the information for resetting the maintenance service indicator in the maintenance-relevant information for your vehicle. Such information is available from either your authorized Mercedes-Benz Light Truck Center or directly from Mercedes-Benz. i If the maintenance service indicator was inadvertently reset, have an authorized Mercedes-Benz Light Truck Center correct it. Only reset if the proper maintenance service has been performed. Resetting the system without performing the proper maintenance service as called for by the maintenance service indicator will result in engine damage and/or other vehicle damage not covered by the Mercedes-Benz Limited Warranty. 279