2011 Mercedes CL-Class Owner's Manual - Page 408

406 Engine compartment 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 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. If the engine is not at normal operating temperature (e.g. if the engine was only started briefly): repeat the measurement after about 30 minutes. If the Engine Oil Level Not Measurable With Running Engine message appears: X Switch off the engine. X If the engine is at normal operating temperature: wait about five minutes before carrying out the measurement. If the engine is not at normal operating temperature, e.g. if the engine was only started briefly: wait about 30 minutes before carrying out the measurement. Maintenance and care the vehicle on a level surface. engine should be switched off for approximately five minutes if the engine is at normal operating temperature. X 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 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. i If you wish to cancel the measurement, press the % button on the multifunction steering wheel. Adding engine oil H Environmental note When adding oil, take care not to spill any. If oil enters the soil or waterways, it is harmful to the environment. ! 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. ! Only use engine oils and oil filters which have been approved for vehicles with a service system. A list of the engine oils and oil filters that have been tested and approved according to the Mercedes-Benz specifications for service products can be found on the Internet at http:// www.mbusa.com (USA only). Further information on tested and approved engine oils and oil filters can be obtained from any authorized Mercedes-Benz Center.