- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- NTK "91246" - Not available
VW - Passat, Golf, Jetta, Touran, Caddy; AUDI - A4, A6; SEAT - Leon, Toledo; SKODA - Octavia, Superb; BMW - 3, 5