2009 Mercedes E-Class Owner's Manual - Page 325

Practical hints Vehicle status messages in the multifunction display If the message Check oil level 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. Display messages 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. For information on approved engine oils contact an authorized Mercedes-Benz Center or visit www.mbusa.com (USA only). Possible cause/consequence The fuel level is low. Reserve Fuel Ultra Low-sulfur Diesel Fuel Only The fuel level has dropped below the reserve mark. Vehicles with diesel engine only: The fuel level has dropped below the reserve mark. 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 leaky. ! 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. Possible solution X X X X ¿ W W W Refuel at the next gas station. Refuel at the next gas station. Refuel at the next gas station. Only use commercially available vehicular ULTRA-LOW SULFUR DIESEL FUEL (15 ppm SULFUR MAXIMUM). Gas Cap Is Open X X Check the fuel cap (Y page 239). 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. X ò Replace Air Filter The air filter is clogged. Have the air filter checked at an authorized Mercedes-Benz Center. Z 323