- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- NTK "91837" - Not available
OPEL - Insignia A, Cascada, Zafira Tourer C, Astra; VAUXHALL - Insignia, Cascada; MERCEDES-BENZ - S-Class, E-Class