- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- FEBI Bilstein "21432" - Not available
AUDI - 100, 80, A6, V8, Cabriolet; VW - Passat, Golf; FIAT - UNO, Tipo; ALFA ROMEO - 33, 164