- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- FAE "77273" - Not available
MERCEDES-BENZ - S-Class, E-Class, SL, Sprinter 2-T, Sprinter 3-T; MAZDA - Xedos 9; BMW - 3, 5