- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- VEGAZ "ULS-227" - Not available
VW - Golf, Bora, New Beetle, Polo, Touareg; SEAT - Leon, Cordoba; AUDI - A3, TT; SKODA - Fabia, Octavia; MERCEDES-BENZ - E-Class