- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Bugiad "54042" - Not available
VW - Golf, New Beetle, Bora, Passat, Polo; AUDI - TT, A3; SEAT - Leon, Cordoba; SKODA - Fabia, Octavia