- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- VEGAZ "ULS-127" - Not available
MERCEDES-BENZ - E-Class, C-Class, CLK, Sprinter 3-T, SL; BMW - 3 (E46, WB), Z3; AUDI - A6, A4