Hi, with our newest family member (C70 D5 MY08) something is wrong. Yesterday about 500km were driven and today about 25 km of city traffic. Then the warning light went on at once: “motor system maintenance required”. Power and engine run normal, external nothing to recognize. Last service was on 05.08, unfortunately in a free workshop (from the previous owner). Before the start of the journey, the oil level (with cold engine) was just below half. Previously with still warm engine (car was 40min), the oil level was Just about Max. Sounds like the well-known problem of oil dilution, doesn’t it? Can the ADAC read this out? In the engine compartment there’s a sticker where the correct oil level is on it, means that the car has got the update? Is it enough to drain the oil or better fresh oil? Greetings