I have a 1987 300D and its great. For the past couple months though, I have noticed that the oil idiot light comes on when I go around turns. I have checked the oil many times and it appears to be full. I also tried adding more oil, but the light still goes on when I go around corners. The oil pressure gauge looks fine and I don't notice other problems, but it does make me wonder. When I look at the valve cover while the engine is running, it looks like there is plenty of oil in there. Any idea where this sensor is, and should I be concerned about this?