How often do I need to change the oil on a MB S430? The screen shows I need an "A" maintenance in 7100 miles.?

I bought my used MB S430 last March. I've only put on about 3000 miles. I've heard that the oil should be changed at 3000 or 5000 miles, but my car indicates that I'm not due for an %26quot;A%26quot; service for another 7100 miles. Is it OK to go that long without an oil change?How often do I need to change the oil on a MB S430? The screen shows I need an %26quot;A%26quot; maintenance in 7100 miles.?no, your car needs an oil change every 3000 miles.