- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Hart "514 104" - Not available
BMW - 3, 5, 7, 8, 6; VW - Golf; FIAT - Punto; MERCEDES-BENZ - E-Class; SEAT - Ibiza; CITROËN - XM; MAZDA - 929; ...