2010 Mercedes C-Class Owner's Manual - Page 293

Vehicle status messages in the multifunction display Display messages Possible causes/consequences and M Solutions The engine oil has dropped to a critical level. X Check the engine oil level (Y page 225) and add engine oil as required (Y page 226). X If you must add engine oil frequently, have the engine checked for possible leaks. For information on approved engine oils contact an authorized Mercedes-Benz Center or visit www.mbusa.com (USA only). 291 4 Check Engine Oil At Next Refueling If the message Check Engine Oil At Next Refueling appears while the engine is running and at operating temperature, the engine oil level has dropped to approximately the minimum level. The message will be stored in the vehicle status message memory after you have cleared it from the multifunction display. Visually check for oil leaks. If there are no obvious oil leaks, drive to the nearest service station to refill your engine oil to the required level. Display messages Possible causes/consequences and M Solutions The fuel level has dropped below the reserve mark. X Refuel at the next gas station. A loss of pressure has been detected in the fuel system. The fuel cap may not be closed properly or the fuel system may be leaking. X Check the fuel cap (Y page 222). X If it is not closed properly: Close the fuel cap. X If it is closed properly: Have the fuel system checked at an authorized Mercedes-Benz Center. 8 8 Fuel Level Low Gas Cap Loose Z Practical hints ! Engine oil level warnings should not be ignored. Extended driving with the symbol displayed could result in serious engine damage that is not covered by the Mercedes-Benz Limited Warranty.