- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- AT Autoteile "at12121" - Not available
AUDI - A8, A4, A3, A6, TT; SEAT - Ibiza, Cordoba; SKODA - Fabia, Roomster; BMW - 3, 1; VW - Polo; ALFA ROMEO - 156, 159