- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- NGK "91224" - Not available
BMW - 5, 3, 7 (F01, F02, F03), X6, 1, 6, X3, Z4, X5, X1; MERCEDES-BENZ - C-Class, E-Class, SLK