2011 Mercedes S-Class Owner's Manual - Page 450

448 Engine compartment X Example: vehicles with a gasoline engine Make sure that the SmartKey is in position 2 in the ignition lock. X Press the ; or = button to select the Service menu. X Press the : or 9 button to select Engine Oil Level. X Press a. The Measuring Engine Oil Level Accurate Only When Vehicle is Level message appears in the multifunction display. The measurement takes a few seconds. You will see one of the following messages in the multifunction display: REngine RAdd1.0 Maintenance and care Example: vehicles with 4MATIC Pull oil dipstick : out of the dipstick guide tube. X Wipe off oil dipstick :. X Slowly insert oil dipstick : into the dipstick guide tube to the stop, and take it out again. The oil level is correct if the level is between MIN mark = and MAX mark ;. X Add oil if necessary. X Oil Level OK l Engine OilAt Next Refueling RAdd1.5 l Engine OilAt Next Refueling RAdd2.0 l Engine OilAt Next Refueling X Add oil if necessary. If the engine is at normal operating temperature and the ReduceEngine Oil Level message appears, the engine oil level is too high. X Have excess oil siphoned off. ! Do not add too much oil. Adding too much oil can result in damage to the engine or the catalytic converter. Have excess oil siphoned off. If the For Engine Oil Level Ignition Must be On message appears: X Turn the SmartKey to position 2 in the ignition lock. If the Need More Time to Check Engine Oil Level message appears: X If the engine is at normal operating temperature: repeat the measurement after about five minutes. Checking the oil level using the onboard computer On vehicles with a 12-cylinder engine, the oil level can be checked using the on-board computer. On all other models, the dipstick must be used to check the engine oil level. When checking the oil level: Rpark Rthe the vehicle on a level surface. engine should be switched off for approximately five minutes if the engine is at normal operating temperature.