Oxygen, Lambda Sensor Exhaust Oxygen Sensor (O2 Sensor) Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture FREY "880608601" - Not availableBMW - 7 (F01, F02, F03), X6, 3, 5, 1, 6, X3, X5, X1, Z4; CHEVROLET - Aveo