- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- NGK "0438" - Not available
BMW - 3 (E46, WB), 5 (E39, WB), Z3, Z4, 7 (E38, E65, E66), X3, X5; LAND ROVER - Range Rover
Additional numbers
NGK:
OZA447-E29