2007 Mercedes CL-Class Owner's Manual - Page 554

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. 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): "Next Service A due in XXX miles (km)" "Next Service A due in XX days" "Service A due" The maintenance services will be indicated by showing a service type A through type H in the multifunction display. Types A through H are classified based on estimated time needed to perform the maintenance service, ranging from "Service A" (approximately 1 hour) to "Service H" (approximately 8 hours) ! 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. Refer to Maintenance Booklet for a listing of maintenance services and intervals they need to be performed at. 551