- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Metzger "0893309" - Not available
BMW - 5 (E39, WB), 7 (E65, E66, E67), 6, 3, 1; CITROËN - DS3, Jumpy; ALFA ROMEO - 147, 159