- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- FEBI Bilstein "21430" - Not available
AUDI - 100, 80, A6, Coupe, 90; VW - Golf, Jetta; FIAT - Tipo, UNO; SEAT - Toledo; ALFA ROMEO - 33, 164