2009 Mercedes SLK-Class Owner's Manual - Page 228

Operation Engine compartment Other display messages If the ignition is not switched on, the following message appears in the multifunction display: Turn on ignition to see engine oil level. X Switch on the ignition. If you see the message: Observe Waiting Time X If the engine is at operating temperature, wait 5 minutes before repeating check procedure. X i If you want to interrupt the checking procedure, press button k or j on the multifunction steering wheel. If there is excess engine oil with the engine at normal operating temperature, the following message appears in the multifunction display: Engine Oil Level Reduce Oil Level X Have excess oil siphoned or drained off. Contact an authorized Mercedes-Benz Center. ! Excess oil must be siphoned or drained off. It could cause damage to the engine and emission control system not covered by the Mercedes-Benz Limited Warranty. For information on messages in the multifunction display concerning engine oil, see the "Practical hints" section (Y page 290). Adding engine oil ! Only use approved engine oils and oil filters required for vehicles with Maintenance System. For a listing of approved engine oils and oil filters, contact an authorized Mercedes-Benz Center or visit www.mbusa.com (USA only). Using engine oils and oil filters of specification other than those expressly required for the Maintenance System, or changing of oil and oil filter at change intervals longer than those called for by the Maintenance System will result in engine or emission control system damage not covered by the Mercedes-Benz Limited Warranty. If the engine is not at operating temperature yet, you must wait 30 minutes before checking oil. If you see the message: Cannot check engine oil level with engine on. X Turn off the engine. X X If the engine is at operating temperature, wait 5 minutes before checking oil. If the engine is not at operating temperature yet, you must wait 30 minutes before checking oil. Example illustration SLK 350 1 Filler cap 226