- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- NGK "0047" - Not available
AUDI - A8, A3, A1; ALFA ROMEO - 159, 156, Spider, 166, Brera, GTV, 147, GT
Additional numbers
NGK:
OZA510-AU4