- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- NGK "1870" - Not available
AUDI - A4, A3, A6, TT, A5; CHEVROLET - HHR; BMW - 1, 3; ALFA ROMEO - 156, 159; BENTLEY - Continental
Additional numbers
NGK:
OZA531-GM7