- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- AT Autoteile "at12307" - Not available
VW - Golf, Jetta, Polo, Caddy, Touran; AUDI - A3, A1; SEAT - Ibiza, Altea; SKODA - Fabia, Rapid