- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- RECOFICIAL "CSL2542" - Not available
VW - Golf, Passat, Arteon, Tiguan; SKODA - Octavia, Superb; AUDI - A3, Q2; SEAT - Leon, Ateca