- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Calorstat by Vernet "LS140549" - Not available
BMW - 5, 6, 7 (E65, E66, E67), X6, 3; MERCEDES-BENZ - CLK, SLK; AUDI - A4, A3