- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- FEBI Bilstein "36843" - Not available
BMW - 5 (E39, WB), 3, Z4, X3, Z3; BMW (BRILLIANCE) - 5 Series; MERCEDES-BENZ - S-Class, E-Class; AUDI - A6, A4