30C1는 BMW 결함 메모리에 저장된 코드입니다（ISTA 결함 코드, 표준 OBD-II P 코드 아님）。
코드 의미: DME — engine oil-pressure control (static). The engine management sees the oil-pressure regulation out of range. First check the oil level and condition — topping up or an oil + filter change fixes a large share of cases. If it persists, verify the oil-pressure sensor against a gauge (replace if off); in some cases it points to the oil pump or timing-chain wear. Don't ignore oil-pressure faults — have it checked.
