- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- OSSCA "40523" - Not available
BMW - 3 (E91, E92), 1 (E81, E87), X3, Z4 Roadster, X1; AUDI - A4, A3; BMW (BRILLIANCE) - 3 Series
