- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Delphi "ES21081-12B1" - Not available
BMW - 3 (E46, WB), 1, 5, 4 (F32, F33, F82), 2, X3, 7 (E65, E66, E67), X4, X5, X6, 6