2007 Mercedes CLK-Class Owner's Manual - Page 354

Operation Maintenance Maintenance We strongly recommend that you have your vehicle serviced by an authorized Mercedes-Benz Center, in accordance with the Maintenance Booklet at the times called for by the maintenance service indicator. Failure to have the vehicle maintained in accordance with the Maintenance Booklet and maintenance service indicator at the designated times/mileage will result in vehicle damage not covered by the Mercedes-Benz Limited Warranty. Maintenance service indicator message The maintenance service indicator message will notify you when your next maintenance service is due. Starting approximately 1 month before your 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 XXXXX miles (km) Service A in XXX days Service A due now The type of maintenance service due is indicated in the multifunction display: 9 ½ Basic service (A) Extended service (B) i Vehicles equipped with Maintenance System (U.S. vehicles. Canada vehicles, depending on vehicle production date): The Maintenance System in your vehicle tracks distance driven and the time elapsed since your last maintenance service and calculates other maintenance service work required. 353