- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Delphi "ES21668-12B1" - Not available
BMW - 3, 1, 5, X1, X3, 4, X5, 7, 2, 6; TOYOTA - Avensis, Auris, RAV 4 IV (WW), Verso