- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Triscan "8845 50521" - Not available
AUDI - A4, A6, A3, TT, A5; MAZDA - Premacy, 323; BMW - 3, 1; ALFA ROMEO - 156, 159; BENTLEY - Continental