Oxygen, Lambda Sensor Exhaust Oxygen Sensor (O2 Sensor) Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture Open Parts "LMB1075.00" - Not availableMINI - Cooper, Clubman, Countryman; BMW - X1, 3, 5, 1, 4, 2, 6, X2, X5, X6, X4