- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- RIDEX "3922L0291" - Not available
VW - Golf, Bora, Passat, Phaeton, New Beetle; SEAT - Leon, Toledo; BMW - 3, 5; AUDI - A4, A3