Oxygen, Lambda Sensor Exhaust Oxygen Sensor (O2 Sensor) Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture KW "498 614" - Not availableSEAT - Arona, Ateca, Ibiza, Tarraco; AUDI - Q2, Q3; SKODA - Fabia, Kamiq; CUPRA - Ateca