- 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 "LS140557" - Not available
BMW - 3 (E36, E46, WB), Z3, 5, 7, Z4; MERCEDES-BENZ - C-Class, S-Class; AUDI - A6, A4