- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Fenox "OS82006" - Not available
VW - Tiguan, Touran, Touareg, Golf, Passat; AUDI - A3, Q3; SKODA - Octavia, Superb; SEAT - Leon, Tarraco