- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Motaquip "LVOS1621" - Not available
AUDI - Q7, A4, A3, A5, A6; BMW - 3, 5; VW - Golf Plus, Touareg; ALFA ROMEO - 156, 159