BMW i8 Oxygen Sensor 11788617030 Corresponds to 0258030139 Original Factory Specification

When your BMW i8 shows check engine light, rough idle, weak acceleration, or abnormal fuel consumption, it usually indicates aging or failure of the oxygen sensor, failing to accurately monitor exhaust oxygen content. This sensor, in normal operation, feeds the ECU with real-time air-fuel ratio signals to ensure optimal combustion and reduced emissions. OEM number 11788617030, compatible with factory spec 0258030139, fits all i8 models. Installation requires a special socket to remove the old part and avoid damaging threads; ensure the sensor wiring harness does not contact the exhaust or moving parts to prevent high-temperature melting or short circuits.