- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- NTK "0055" - Not available
BMW - 3, 5, 1, 6, 4; AUDI - A4, A3; FIAT - Croma; OPEL - Vectra C; VAUXHALL - Vectra; ALFA ROMEO - 159; ...