- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Mobiletron "OS-B542" - Not available
BMW - 3, 1 (E81, E87), X1; AUDI - A3, TT; FORD - Focus, Mondeo; ALFA ROMEO - 159, Giulietta