2007 Mercedes G-Class Owner's Manual - Page 312

Operation Maintenance Maintenance We strongly recommend that you have your vehicle serviced at an authorized Mercedes-Benz Light Truck Center, in accordance with the Maintenance Booklet at the times called for by the maintenance service indicator. Maintenance service indicator message The maintenance service indicator message will notify you when the next maintenance service is due. Starting approximately 1 month before the next maintenance service is due, one of the following messages will appear in the multifunction display while you are driving or when you switch on the ignition (example service A): Service A in XX Days Service A in XX miles (km) Service A due now ! Failure to have the vehicle maintained in accordance with the Maintenance Booklet and maintenance service indicator at the designated times/mileage may result in vehicle damage not covered by the Mercedes-Benz Limited Warranty. The type of maintenance service due is indicated in the multifunction display: 9 ½ Basic service (A) Extended service (B) 311